/* ============================================================
   Sobdo Sikhi — Premium UI System  (indigo "treasury" theme)
   Color: indigo #4F46E5 + gold accent #D4A017 + deep ink + slate
   Type:  Hind Siliguri (UI) + Noto Sans Bengali (long-form) + Inter (latin)
   ============================================================ */

:root {
    /* Brand — indigo treasury */
    --sb-brand: #4F46E5;
    --sb-brand-600: #4338CA;
    --sb-brand-700: #3730A3;
    --sb-brand-50: #EEF2FF;
    --sb-brand-100: #E0E7FF;
    --sb-grad: linear-gradient(135deg, #6366F1 0%, #4F46E5 50%, #3730A3 100%);
    --sb-grad-soft: linear-gradient(135deg, #F5F7FF 0%, #EEF2FF 100%);

    /* Gold accent (the "treasury" highlight) */
    --sb-gold: #D4A017;
    --sb-gold-600: #B8860B;
    --sb-gold-50: #FBF6E7;
    --sb-gold-100: #F6ECC9;
    --sb-gold-grad: linear-gradient(135deg, #E8B923 0%, #D4A017 55%, #B8860B 100%);

    /* Ink + neutrals */
    --sb-ink: #0E1015;
    --sb-ink-2: #1F2330;
    --sb-text: #2A2F3C;
    --sb-muted: #6B7280;
    --sb-border: #E5E7F0;
    --sb-border-2: #EEF0F7;
    --sb-bg: #FAFAFC;
    --sb-bg-2: #F3F4FA;
    --sb-card: #FFFFFF;

    /* Semantic */
    --sb-ok: #16A34A;
    --sb-ok-bg: #F0FDF4;
    --sb-warn: #D97706;
    --sb-warn-bg: #FFFBEB;
    --sb-bad: #DC2626;
    --sb-info: #2563EB;
    --sb-info-bg: #EFF6FF;

    /* Type */
    --sb-font-bn-ui: 'Hind Siliguri', 'Noto Sans Bengali', 'SolaimanLipi', system-ui, sans-serif;
    --sb-font-bn-text: 'Noto Sans Bengali', 'Hind Siliguri', 'SolaimanLipi', system-ui, sans-serif;
    --sb-font-en: 'Inter', system-ui, -apple-system, sans-serif;

    /* Radius */
    --sb-r-sm: 8px;
    --sb-r:    12px;
    --sb-r-lg: 18px;
    --sb-r-xl: 24px;

    /* Shadow */
    --sb-shadow-sm: 0 1px 2px rgba(15,18,30,.06);
    --sb-shadow:    0 4px 18px -6px rgba(15,18,30,.10);
    --sb-shadow-md: 0 12px 32px -10px rgba(15,18,30,.14);
    --sb-shadow-lg: 0 28px 56px -16px rgba(15,18,30,.18);
    --sb-ring:      0 0 0 3px rgba(79,70,229,.20);

    /* Spacing */
    --sb-gap: 16px;
    --sb-gap-lg: 32px;
}

/* ----- Base reset, scoped to plugin output ----- */
.sb-landing, .sb-dash, .sb-wrap { font-family: var(--sb-font-bn-text); color: var(--sb-text); -webkit-font-smoothing: antialiased; line-height: 1.55; }
.sb-landing *, .sb-dash *, .sb-wrap * { box-sizing: border-box; }
.sb-landing img, .sb-dash img { max-width: 100%; }

.sb-container { width: 100%; max-width: 1140px; margin-left: auto; margin-right: auto; padding-left: 20px; padding-right: 20px; }
.sb-container--narrow { max-width: 760px; }

/* ===== Reusable atoms ===== */
.sb-eyebrow {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 12px; border-radius: 999px;
    background: var(--sb-brand-50); color: var(--sb-brand-700);
    font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 12px; letter-spacing: .02em;
    border: 1px solid var(--sb-brand-100);
}
.sb-eyebrow .sb-icon { color: var(--sb-brand); }

.sb-pill {
    display: inline-block; padding: 4px 10px; border-radius: 999px;
    background: var(--sb-bg-2); color: var(--sb-ink-2);
    font-family: var(--sb-font-en); font-weight: 600; font-size: 12px;
}

.sb-grad {
    background: var(--sb-grad);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}

.sb-icon { display: inline-block; vertical-align: middle; flex-shrink: 0; }

.sb-btn {
    display: inline-flex; align-items: center; gap: 8px; justify-content: center;
    padding: 11px 18px; border-radius: var(--sb-r-sm); border: 1px solid transparent;
    font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 15px; line-height: 1;
    cursor: pointer; transition: transform .12s, box-shadow .15s, background .15s, color .15s, border-color .15s;
    text-decoration: none;
}
.sb-btn:hover { transform: translateY(-1px); }
.sb-btn:active { transform: translateY(0); }
.sb-btn:focus-visible { outline: none; box-shadow: var(--sb-ring); }
.sb-btn--sm { padding: 8px 14px; font-size: 13px; }
.sb-btn--lg { padding: 14px 22px; font-size: 16px; }
.sb-btn--block { width: 100%; }

.sb-btn--primary {
    background: var(--sb-grad);
    color: #fff;
    box-shadow: 0 6px 16px -4px rgba(79,70,229,.42);
}
.sb-btn--primary:hover { box-shadow: 0 10px 22px -6px rgba(79,70,229,.52); color: #fff; }

.sb-btn--ghost {
    background: #fff; color: var(--sb-ink-2); border-color: var(--sb-border);
}
.sb-btn--ghost:hover { background: var(--sb-bg); border-color: var(--sb-ink-2); color: var(--sb-ink); }

.sb-btn--link {
    background: transparent; color: var(--sb-muted); border: none; padding: 6px 0;
    font-weight: 500; font-size: 13px;
}
.sb-btn--link:hover { color: var(--sb-brand); transform: none; }

/* ============================================================
   TOP BAR
   ============================================================ */
.sb-topbar {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255,255,255,.78); backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid var(--sb-border-2);
}
.sb-topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px 20px; }
.sb-brand { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; color: var(--sb-ink); }
.sb-brand__mark {
    width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center;
    background: var(--sb-grad); color: #fff; border-radius: 9px; box-shadow: var(--sb-shadow);
}
.sb-brand__name { font-family: var(--sb-font-bn-ui); font-weight: 700; font-size: 17px; letter-spacing: -.01em; }
.sb-topbar__nav { display: flex; gap: 22px; }
.sb-topbar__nav a {
    font-family: var(--sb-font-bn-ui); font-size: 14px; color: var(--sb-text);
    text-decoration: none; padding: 6px 0; position: relative;
}
.sb-topbar__nav a:hover { color: var(--sb-brand); }
@media (max-width: 768px) { .sb-topbar__nav { display: none; } }

/* ============================================================
   HERO
   ============================================================ */
.sb-hero {
    padding: 60px 0 80px;
    background:
        radial-gradient(60% 40% at 12% 0%, rgba(99,102,241,.12) 0%, transparent 60%),
        radial-gradient(40% 30% at 100% 10%, rgba(212,160,23,.10) 0%, transparent 60%),
        var(--sb-bg);
}
.sb-hero__grid {
    display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center;
}
.sb-hero__copy h1 {
    font-family: var(--sb-font-bn-ui); font-weight: 700;
    font-size: clamp(34px, 5vw, 54px); line-height: 1.12; letter-spacing: -.02em;
    color: var(--sb-ink); margin: 16px 0 18px;
}
.sb-hero__sub {
    font-size: 17px; color: var(--sb-text); max-width: 540px; margin: 0 0 26px;
}
.sb-hero__ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.sb-hero__headline span.sb-grad { padding-right: 4px; }

.sb-trust { display: flex; align-items: center; gap: 12px; margin-top: 32px; color: var(--sb-muted); font-size: 13px; }
.sb-trust strong { color: var(--sb-ink); font-family: var(--sb-font-en); }
.sb-trust__avatars { display: inline-flex; }
.sb-trust__avatars span {
    width: 28px; height: 28px; border-radius: 50%; border: 2px solid #fff;
    background: linear-gradient(135deg, #FFD0A4, #FF6F91);
    display: inline-block;
}
.sb-trust__avatars span + span { margin-left: -10px; }
.sb-trust__avatars span:nth-child(2) { background: linear-gradient(135deg, #A8E6CF, #4FC3F7); }
.sb-trust__avatars span:nth-child(3) { background: linear-gradient(135deg, #E8B923, #4F46E5); }
.sb-trust__avatars span:nth-child(4) { background: linear-gradient(135deg, #B388FF, #6C63FF); }

/* Hero mock device */
.sb-hero__visual { position: relative; }
.sb-heromock {
    background: #fff; border-radius: var(--sb-r-xl); border: 1px solid var(--sb-border);
    box-shadow: var(--sb-shadow-lg);
    overflow: hidden;
    transform: rotate(-1.5deg);
}
.sb-heromock__bar {
    display: flex; align-items: center; gap: 6px;
    padding: 10px 14px; background: var(--sb-bg-2); border-bottom: 1px solid var(--sb-border-2);
}
.sb-heromock__bar span { width: 10px; height: 10px; border-radius: 50%; background: #d6dae3; display: inline-block; }
.sb-heromock__bar span:nth-child(1) { background: #ff6259; }
.sb-heromock__bar span:nth-child(2) { background: #ffbd2e; }
.sb-heromock__bar span:nth-child(3) { background: #2cca3f; }
.sb-heromock__bar small { margin-left: auto; font-family: var(--sb-font-en); color: var(--sb-muted); font-size: 11px; }
.sb-heromock__body { padding: 22px 22px 18px; }
.sb-heromock__pill {
    display: inline-block; padding: 4px 10px; border-radius: 999px;
    background: var(--sb-brand-50); color: var(--sb-brand-700);
    font-size: 11px; font-weight: 600; margin-bottom: 14px;
}
.sb-heromock__q { font-size: 16px; font-weight: 600; color: var(--sb-ink); margin: 0 0 14px; line-height: 1.4; }
.sb-heromock__opts { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 8px; }
.sb-heromock__opts li {
    border: 1px solid var(--sb-border); border-radius: var(--sb-r-sm); padding: 10px 14px; font-size: 14px;
    color: var(--sb-text);
}
.sb-heromock__opts li.is-pick {
    border-color: var(--sb-brand); background: var(--sb-brand-50); color: var(--sb-brand-700); font-weight: 600;
    box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}
.sb-heromock__foot { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--sb-muted); }
.sb-heromock__time { display: inline-flex; align-items: center; gap: 4px; font-family: var(--sb-font-en); font-variant-numeric: tabular-nums; }
.sb-heromock__btn { color: var(--sb-brand); font-weight: 600; }

.sb-floater {
    position: absolute; padding: 8px 14px; border-radius: 999px;
    background: #fff; box-shadow: var(--sb-shadow-md); display: inline-flex; align-items: center; gap: 6px;
    font-size: 13px; font-weight: 600; color: var(--sb-ink-2);
    border: 1px solid var(--sb-border-2);
}
.sb-floater .sb-icon { color: var(--sb-brand); }
.sb-floater--1 { top: 8%; left: -16px; animation: sb-float 6s ease-in-out infinite; }
.sb-floater--2 { bottom: 12%; right: -10px; animation: sb-float 7s ease-in-out infinite reverse; }

@keyframes sb-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@media (max-width: 900px) {
    .sb-hero__grid { grid-template-columns: 1fr; gap: 40px; }
    .sb-hero { padding: 36px 0 60px; }
    .sb-mock { transform: none; }
    .sb-floater--1 { top: -10px; left: 8px; }
    .sb-floater--2 { bottom: -10px; right: 8px; }
}

/* ============================================================
   STATS STRIP
   ============================================================ */
.sb-stripstats {
    padding: 22px 0; background: var(--sb-ink); color: #fff;
}
.sb-stripstats__row {
    display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; text-align: center;
}
.sb-stripstats__row > div { display: flex; flex-direction: column; gap: 2px; }
.sb-stripstats__row strong { font-family: var(--sb-font-en); font-size: 22px; font-weight: 700; letter-spacing: -.01em; }
.sb-stripstats__row span { font-size: 12px; color: rgba(255,255,255,.66); }

@media (max-width: 700px) { .sb-stripstats__row { grid-template-columns: repeat(2, 1fr); gap: 18px; padding: 8px 0; } }

/* ============================================================
   SECTIONS
   ============================================================ */
.sb-section { padding: 80px 0; }
.sb-section--alt { background: var(--sb-bg-2); }
.sb-section__head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.sb-section__head h2 {
    font-family: var(--sb-font-bn-ui); font-weight: 700;
    font-size: clamp(26px, 3.4vw, 36px); line-height: 1.2; color: var(--sb-ink);
    letter-spacing: -.015em; margin: 12px 0 8px;
}
.sb-section__head p { color: var(--sb-muted); font-size: 16px; margin: 0; }

@media (max-width: 700px) { .sb-section { padding: 56px 0; } .sb-section__head { margin-bottom: 28px; } }

/* Features grid */
.sb-features {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
}
.sb-feature {
    background: var(--sb-card); border: 1px solid var(--sb-border-2);
    border-radius: var(--sb-r-lg); padding: 24px;
    transition: transform .15s, box-shadow .2s, border-color .15s;
}
.sb-feature:hover { transform: translateY(-3px); box-shadow: var(--sb-shadow); border-color: var(--sb-brand-100); }
.sb-feature__icon {
    width: 48px; height: 48px; display: inline-flex; align-items: center; justify-content: center;
    background: var(--sb-brand-50); color: var(--sb-brand-700); border-radius: 12px; margin-bottom: 14px;
}
.sb-feature h3 { font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 17px; color: var(--sb-ink); margin: 0 0 6px; }
.sb-feature p { font-size: 14.5px; color: var(--sb-muted); margin: 0; line-height: 1.55; }

@media (max-width: 900px) { .sb-features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .sb-features { grid-template-columns: 1fr; } }

/* Exam cards */
.sb-exams { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.sb-exam {
    background: var(--sb-card); border: 1px solid var(--sb-border-2);
    border-radius: var(--sb-r-lg); padding: 22px;
    display: flex; flex-direction: column; gap: 10px;
    transition: transform .15s, box-shadow .2s, border-color .15s;
}
.sb-exam:hover { transform: translateY(-3px); box-shadow: var(--sb-shadow); border-color: var(--sb-brand-100); }
.sb-exam header { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.sb-exam h3 { font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 18px; margin: 0; color: var(--sb-ink); }
.sb-exam p { color: var(--sb-muted); font-size: 14px; margin: 0; flex: 1; }
.sb-exam__cta { display: inline-flex; align-items: center; gap: 4px; color: var(--sb-brand); font-weight: 600; font-size: 14px; text-decoration: none; }
.sb-exam__cta:hover { gap: 8px; transition: gap .15s; }
@media (max-width: 900px) { .sb-exams { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .sb-exams { grid-template-columns: 1fr; } }

/* Steps */
.sb-steps {
    list-style: none; counter-reset: sb-step;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
    padding: 0; margin: 0;
}
.sb-steps li {
    background: #fff; border: 1px solid var(--sb-border-2); border-radius: var(--sb-r-lg);
    padding: 26px 22px; position: relative;
}
.sb-steps__num {
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--sb-grad); color: #fff;
    font-family: var(--sb-font-bn-ui); font-weight: 700; font-size: 16px;
    margin-bottom: 12px; box-shadow: 0 4px 12px -4px rgba(79,70,229,.45);
}
.sb-steps li h3 { font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 18px; color: var(--sb-ink); margin: 0 0 6px; }
.sb-steps li p { color: var(--sb-muted); margin: 0; font-size: 14.5px; }
@media (max-width: 800px) { .sb-steps { grid-template-columns: 1fr; } }

/* CTA / Login */
.sb-section--cta {
    background: linear-gradient(180deg, var(--sb-bg) 0%, var(--sb-card) 100%);
}
.sb-cta__grid { display: grid; grid-template-columns: 1fr 460px; gap: 56px; align-items: center; }
.sb-cta__copy h2 { font-family: var(--sb-font-bn-ui); font-weight: 700; font-size: clamp(28px, 3.2vw, 38px); color: var(--sb-ink); margin: 0 0 12px; letter-spacing: -.015em; }
.sb-cta__copy p { color: var(--sb-text); font-size: 17px; margin: 0 0 22px; }
.sb-checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.sb-checklist li { display: flex; align-items: center; gap: 8px; color: var(--sb-text); font-size: 15px; }
.sb-checklist .sb-icon { color: var(--sb-ok); flex-shrink: 0; }

@media (max-width: 900px) { .sb-cta__grid { grid-template-columns: 1fr; gap: 32px; } }

/* Login card */
.sb-login-card {
    background: #fff; border: 1px solid var(--sb-border); border-radius: var(--sb-r-xl);
    padding: 28px; box-shadow: var(--sb-shadow-md);
}
.sb-login-card__head h3 { font-family: var(--sb-font-bn-ui); font-weight: 700; font-size: 22px; margin: 0 0 4px; color: var(--sb-ink); }
.sb-login-card__head p { color: var(--sb-muted); margin: 0 0 16px; font-size: 14px; }
.sb-login-card__foot { display: flex; align-items: center; gap: 6px; color: var(--sb-muted); font-size: 12.5px; margin: 16px 0 0; }
.sb-login-card__foot .sb-icon { color: var(--sb-ok); }

.sb-demo-banner {
    background: var(--sb-warn-bg); border: 1px solid #FCD34D; padding: 10px 12px; border-radius: 10px;
    color: #78350F; font-size: 13px; margin-bottom: 16px;
}
.sb-demo-banner code { background: rgba(0,0,0,.08); padding: 2px 6px; border-radius: 4px; font-weight: 700; font-family: var(--sb-font-en); }

/* Inputs */
.sb-label { display: block; font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 13px; color: var(--sb-ink-2); margin: 14px 0 6px; }
.sb-label small { font-weight: 400; color: var(--sb-muted); }

.sb-input {
    width: 100%; padding: 12px 14px; border: 1px solid var(--sb-border); border-radius: var(--sb-r-sm);
    font-family: var(--sb-font-bn-text); font-size: 15px; line-height: 1.4; color: var(--sb-ink);
    background: #fff; transition: border-color .15s, box-shadow .15s;
}
.sb-input:focus { outline: none; border-color: var(--sb-brand); box-shadow: var(--sb-ring); }
.sb-input--otp { font-family: var(--sb-font-en); font-size: 22px; letter-spacing: 8px; text-align: center; font-weight: 700; }

.sb-input-prefix {
    display: flex; align-items: stretch; border: 1px solid var(--sb-border); border-radius: var(--sb-r-sm);
    overflow: hidden; transition: border-color .15s, box-shadow .15s;
}
.sb-input-prefix:focus-within { border-color: var(--sb-brand); box-shadow: var(--sb-ring); }
.sb-input-prefix span {
    display: inline-flex; align-items: center; padding: 0 12px; background: var(--sb-bg-2);
    color: var(--sb-muted); font-family: var(--sb-font-en); font-size: 14px; border-right: 1px solid var(--sb-border);
}
.sb-input-prefix .sb-input { border: none; box-shadow: none !important; border-radius: 0; }

/* Spacing between input and the action button inside login/OTP flow */
.sb-step .sb-input-prefix + .sb-btn,
.sb-step .sb-input + .sb-btn,
.sb-step .sb-input--otp + .sb-btn { margin-top: 14px; }

.sb-otp-info { background: var(--sb-info-bg); border-left: 3px solid var(--sb-info); padding: 8px 12px; border-radius: 4px; font-size: 13.5px; margin: 0 0 10px; color: #1E3A8A; }
/* Welcome-back banner shown on the OTP step for returning subscribers. */
.sb-login-card .sb-welcome-back {
    background: var(--sb-grad-soft);
    color: var(--sb-brand-700);
    border: 1px solid var(--sb-brand-100);
    border-radius: 10px;
    padding: 12px 16px;
    margin: 0 0 12px;
    font-family: var(--sb-font-bn-ui);
    font-weight: 700;
    font-size: 15.5px;
    line-height: 1.4;
    text-align: center;
}
.sb-msg { margin-top: 12px; min-height: 20px; font-size: 14px; }
.sb-msg.is-err { color: var(--sb-bad); }
.sb-msg.is-ok { color: var(--sb-ok); }

/* Quotes */
.sb-quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.sb-quote {
    background: #fff; border: 1px solid var(--sb-border-2); border-radius: var(--sb-r-lg);
    padding: 24px; margin: 0; position: relative;
}
.sb-quote::before {
    content: '"'; position: absolute; top: 8px; left: 16px;
    font-family: var(--sb-font-en); font-size: 56px; line-height: 1; color: var(--sb-brand-100);
}
.sb-quote blockquote { margin: 18px 0 14px; font-size: 15px; color: var(--sb-text); line-height: 1.6; }
.sb-quote figcaption { display: flex; flex-direction: column; gap: 2px; padding-top: 12px; border-top: 1px solid var(--sb-border-2); }
.sb-quote figcaption strong { font-family: var(--sb-font-bn-ui); color: var(--sb-ink); font-size: 14px; font-weight: 600; }
.sb-quote figcaption span { color: var(--sb-muted); font-size: 12.5px; }
@media (max-width: 900px) { .sb-quotes { grid-template-columns: 1fr; } }

/* FAQ */
.sb-faq { display: flex; flex-direction: column; gap: 10px; }
.sb-faq__item {
    background: #fff; border: 1px solid var(--sb-border-2); border-radius: var(--sb-r);
    padding: 0; overflow: hidden;
}
.sb-faq__item summary {
    list-style: none; cursor: pointer;
    padding: 16px 20px; display: flex; justify-content: space-between; align-items: center; gap: 12px;
    font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 15.5px; color: var(--sb-ink);
}
.sb-faq__item summary::-webkit-details-marker { display: none; }
.sb-faq__chev { color: var(--sb-muted); transition: transform .2s; display: inline-flex; }
.sb-faq__item[open] .sb-faq__chev { transform: rotate(45deg); color: var(--sb-brand); }
.sb-faq__item p { padding: 0 20px 18px; margin: 0; color: var(--sb-text); font-size: 14.5px; line-height: 1.65; }

/* Footer CTA */
.sb-footer-cta {
    padding: 64px 0; text-align: center;
    background: var(--sb-grad); color: #fff;
    position: relative; overflow: hidden;
}
.sb-footer-cta::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(60% 80% at 50% 0%, rgba(255,255,255,.18) 0%, transparent 60%);
    pointer-events: none;
}
.sb-footer-cta__inner { position: relative; }
.sb-footer-cta h2 { font-family: var(--sb-font-bn-ui); font-weight: 700; font-size: clamp(26px, 3.5vw, 36px); margin: 0 0 8px; color: #fff; letter-spacing: -.015em; }
.sb-footer-cta p { color: rgba(255,255,255,.85); font-size: 16px; margin: 0 0 22px; }
.sb-footer-cta .sb-btn--primary {
    background: #fff; color: var(--sb-brand-700);
    box-shadow: 0 10px 30px -8px rgba(0,0,0,.25);
}
.sb-footer-cta .sb-btn--primary:hover { color: var(--sb-brand-700); }

/* ============================================================
   DASHBOARD
   ============================================================ */
.sb-dash { padding: 36px 0 80px; background: var(--sb-bg); min-height: 70vh; }
.sb-dash__hero {
    display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
    margin-bottom: 24px; flex-wrap: wrap;
}
.sb-dash__hero h1 {
    font-family: var(--sb-font-bn-ui); font-weight: 700;
    font-size: clamp(24px, 3vw, 32px); color: var(--sb-ink);
    margin: 8px 0 4px; letter-spacing: -.015em;
}
.sb-dash__hero p { color: var(--sb-muted); margin: 0; font-size: 14.5px; }
.sb-dash__hero code { font-family: var(--sb-font-en); background: var(--sb-bg-2); padding: 2px 6px; border-radius: 4px; font-size: 12.5px; }

.sb-banner {
    display: flex; align-items: center; gap: 14px; padding: 14px 18px;
    border-radius: var(--sb-r); margin-bottom: 20px;
    background: var(--sb-warn-bg); border: 1px solid #FCD34D; color: #78350F;
    font-size: 14.5px;
}
.sb-banner__icon {
    width: 36px; height: 36px; border-radius: 10px; background: rgba(217,119,6,.15);
    display: inline-flex; align-items: center; justify-content: center; color: var(--sb-warn);
    flex-shrink: 0;
}
.sb-banner div { flex: 1; }
.sb-banner strong { color: #78350F; }

.sb-dash__stats {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
    margin-bottom: 24px;
}
.sb-statcard {
    background: var(--sb-card); border: 1px solid var(--sb-border-2); border-radius: var(--sb-r-lg);
    padding: 18px; display: flex; flex-direction: column; gap: 4px;
    transition: transform .15s, box-shadow .15s;
}
.sb-statcard:hover { transform: translateY(-2px); box-shadow: var(--sb-shadow); }
.sb-statcard__icon {
    width: 38px; height: 38px; display: inline-flex; align-items: center; justify-content: center;
    background: var(--sb-brand-50); color: var(--sb-brand-700); border-radius: 10px; margin-bottom: 6px;
}
.sb-statcard__num { font-family: var(--sb-font-en); font-size: 26px; font-weight: 700; color: var(--sb-ink); letter-spacing: -.02em; }
.sb-statcard__lbl { color: var(--sb-muted); font-size: 12.5px; }

@media (max-width: 700px) { .sb-dash__stats { grid-template-columns: repeat(2, 1fr); } }

.sb-dash__streak {
    background: var(--sb-card); border: 1px solid var(--sb-border-2); border-radius: var(--sb-r-lg);
    padding: 18px 20px; margin-bottom: 24px;
}
.sb-dash__streak header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.sb-dash__streak h3 { font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 14px; color: var(--sb-ink); margin: 0; display: inline-flex; align-items: center; gap: 6px; }
.sb-dash__streak h3 .sb-icon { color: var(--sb-brand); }
.sb-dash__streak header span { font-size: 12.5px; color: var(--sb-muted); }
.sb-dots { display: flex; gap: 6px; flex-wrap: wrap; }
.sb-dot {
    width: 24px; height: 24px; border-radius: 6px; background: var(--sb-bg-2);
    border: 1px solid var(--sb-border-2);
}
.sb-dot.is-on { background: var(--sb-brand); border-color: var(--sb-brand); box-shadow: 0 2px 6px -2px rgba(79,70,229,.45); }

.sb-dash__cards {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
}
.sb-actioncard {
    background: var(--sb-card); border: 1px solid var(--sb-border-2); border-radius: var(--sb-r-lg);
    padding: 20px; display: flex; flex-direction: column; gap: 6px;
    text-decoration: none; color: var(--sb-ink);
    transition: transform .15s, box-shadow .2s, border-color .15s;
    position: relative; overflow: hidden;
}
.sb-actioncard::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(79,70,229,.04) 100%);
    opacity: 0; transition: opacity .2s;
    pointer-events: none;
}
.sb-actioncard:hover { transform: translateY(-3px); box-shadow: var(--sb-shadow); border-color: var(--sb-brand-100); color: var(--sb-ink); }
.sb-actioncard:hover::after { opacity: 1; }
.sb-actioncard__icon {
    width: 48px; height: 48px; border-radius: 12px;
    background: var(--sb-brand-50); color: var(--sb-brand-700);
    display: inline-flex; align-items: center; justify-content: center;
    margin-bottom: 8px;
}
.sb-actioncard h3 { font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 16px; margin: 0; color: var(--sb-ink); }
.sb-actioncard p { color: var(--sb-muted); font-size: 13.5px; margin: 0 0 10px; flex: 1; }
.sb-actioncard__cta { display: inline-flex; align-items: center; gap: 4px; color: var(--sb-brand); font-weight: 600; font-size: 13.5px; }

.sb-actioncard--primary { background: linear-gradient(135deg, #FFF7FA 0%, #FDF2F7 100%); border-color: var(--sb-brand-100); }
.sb-actioncard--primary .sb-actioncard__icon { background: var(--sb-brand); color: #fff; }
.sb-actioncard.is-done .sb-actioncard__icon { background: var(--sb-ok-bg); color: var(--sb-ok); }
.sb-actioncard.is-done { background: #fff; border-color: #BBF7D0; }

@media (max-width: 900px) { .sb-dash__cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .sb-dash__cards { grid-template-columns: 1fr; } }

/* ============================================================
   QUIZ ENGINE (kept compatible)
   ============================================================ */
.sb-wrap { max-width: 960px; margin: 0 auto; padding: 24px 16px; }
.sb-card { background: var(--sb-card); border: 1px solid var(--sb-border); border-radius: var(--sb-r-lg); padding: 24px; box-shadow: var(--sb-shadow-sm); }
.sb-card--narrow { max-width: 440px; margin: 40px auto; }
.sb-card--warn { border-color: #FCD34D; background: var(--sb-warn-bg); }
.sb-title { margin: 0 0 8px; font-family: var(--sb-font-bn-ui); font-size: 24px; font-weight: 700; color: var(--sb-ink); letter-spacing: -.015em; }
.sb-subtitle { margin: 0 0 20px; color: var(--sb-muted); font-size: 14px; }

.sb-quiz__intro, .sb-practice__intro { text-align: center; padding: 30px 20px; }
.sb-quiz__shell { padding: 16px 0; }
.sb-q { background: var(--sb-card); border: 1px solid var(--sb-border-2); border-radius: var(--sb-r-lg); padding: 22px; margin-bottom: 14px; }
.sb-q__num { font-size: 12px; color: var(--sb-muted); margin-bottom: 6px; font-family: var(--sb-font-en); }
.sb-q__text { font-family: var(--sb-font-bn-ui); font-size: 16.5px; font-weight: 600; margin: 0 0 14px; color: var(--sb-ink); line-height: 1.5; }
.sb-q__img { margin: 0 0 14px; }
.sb-q__img img { max-width: 100%; height: auto; border: 1px solid var(--sb-border); border-radius: var(--sb-r-sm); display: block; }
.sb-q__opts { display: grid; gap: 8px; }
.sb-q__opt {
    display: flex; align-items: center; gap: 10px; padding: 12px 14px;
    border: 1px solid var(--sb-border); border-radius: var(--sb-r-sm); cursor: pointer;
    transition: all .12s;
}
.sb-q__opt:hover { border-color: var(--sb-brand); background: var(--sb-brand-50); }
.sb-q__opt.is-selected { border-color: var(--sb-brand); background: var(--sb-brand-50); font-weight: 600; box-shadow: 0 0 0 3px rgba(79,70,229,.12); }
.sb-q__opt input { margin: 0; accent-color: var(--sb-brand); }
.sb-q__opt.is-correct { border-color: #86EFAC; background: var(--sb-ok-bg); }
.sb-q__opt.is-wrong { border-color: #FECACA; background: #FEF2F2; }
.sb-q__expl { margin-top: 10px; padding: 12px 14px; background: var(--sb-bg-2); border-radius: var(--sb-r-sm); font-size: 14px; color: var(--sb-text); border-left: 3px solid var(--sb-info); }

.sb-quiz__bar {
    position: sticky; top: 0; background: #fff; border-bottom: 1px solid var(--sb-border-2);
    padding: 12px 16px; display: flex; justify-content: space-between; align-items: center;
    margin: -16px -16px 16px; z-index: 5; border-radius: var(--sb-r-lg) var(--sb-r-lg) 0 0;
}
.sb-quiz__timer { font-family: var(--sb-font-en); font-weight: 700; color: var(--sb-brand); font-variant-numeric: tabular-nums; font-size: 18px; }
.sb-quiz__progress { color: var(--sb-muted); font-size: 14px; }

.sb-result { text-align: center; padding: 30px 20px; }
.sb-result__big { font-family: var(--sb-font-en); font-size: 64px; font-weight: 800; color: var(--sb-brand); margin: 8px 0; letter-spacing: -.03em; }

.sb-form { max-width: 420px; margin: 20px auto 0; text-align: left; }

/* Tables */
.sb-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--sb-border); border-radius: var(--sb-r-lg); overflow: hidden; margin-top: 16px; }
.sb-table th, .sb-table td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--sb-border-2); font-size: 14px; }
.sb-table th { background: var(--sb-bg-2); font-family: var(--sb-font-bn-ui); font-weight: 600; color: var(--sb-ink); }
.sb-table tr:last-child td { border-bottom: none; }
.sb-table .sb-row-me { background: var(--sb-brand-50); font-weight: 600; }

/* ============================================================
   REVEAL ON SCROLL
   ============================================================ */
[data-reveal] { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
    [data-reveal] { opacity: 1; transform: none; transition: none; }
    .sb-floater { animation: none; }
}


/* ============================================================
   APP SHELL safety resets — neutralize host theme styles
   that leak through (Divi, Astra, etc.)
   ============================================================ */
body.sb-shell { background: var(--sb-bg) !important; }
body.sb-shell #page, body.sb-shell #content, body.sb-shell .container,
body.sb-shell .et_pb_section, body.sb-shell .entry-content,
body.sb-shell #main-content, body.sb-shell #main { all: unset; display: block; }
body.sb-shell .sb-landing,
body.sb-shell .sb-dash { display: block; width: 100%; }

/* ============================================================
   COMING SOON exam cards
   ============================================================ */
.sb-section__sub { font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 14px; text-transform: uppercase; letter-spacing: .08em; color: var(--sb-muted); margin: 0 0 16px; }
.sb-exam--featured { background: linear-gradient(180deg, #fff 0%, var(--sb-brand-50) 100%); border-color: var(--sb-brand-100); }
.sb-exam--featured h3 { color: var(--sb-brand-700); font-size: 22px; }
.sb-exam__bullets { list-style: none; padding: 0; margin: 6px 0 14px; display: grid; gap: 6px; }
.sb-exam__bullets li { display: flex; align-items: center; gap: 6px; color: var(--sb-text); font-size: 13.5px; }
.sb-exam__bullets .sb-icon { color: var(--sb-ok); }
.sb-pill--brand { background: var(--sb-brand); color: #fff; }
.sb-pill--soon { background: #FEF3C7; color: #78350F; display: inline-flex; align-items: center; gap: 4px; }

.sb-exams--soon { opacity: .75; }
.sb-exam--soon { background: #FAFAFB; cursor: not-allowed; }
.sb-exam--soon:hover { transform: none; box-shadow: none; border-color: var(--sb-border-2); }
.sb-exam__locked { display: inline-flex; align-items: center; gap: 6px; color: var(--sb-muted); font-size: 13px; font-weight: 500; margin-top: auto; padding-top: 8px; }
.sb-exam__locked .sb-icon { color: #D97706; }
.sb-soon-note { text-align: center; color: var(--sb-muted); font-size: 14px; margin: 20px 0 0; }
.sb-soon-note a { color: var(--sb-brand); font-weight: 600; }

/* ============================================================
   DASHBOARD v2 — sections + tip grid + mock cards
   ============================================================ */
.sb-dash__sectionhead { margin: 32px 0 12px; font-family: var(--sb-font-bn-ui); font-size: 14px; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--sb-muted); }
.sb-dash__cards--two { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 800px) { .sb-dash__cards--two { grid-template-columns: 1fr; } }
.sb-actioncard--big { padding: 28px; }
.sb-actioncard--big h3 { font-size: 19px; }
.sb-actioncard--big p { font-size: 14.5px; line-height: 1.55; }
.sb-actioncard--soon { background: #FAFAFB; cursor: not-allowed; opacity: .8; }
.sb-actioncard--soon .sb-actioncard__icon { background: #F3F4F6; color: var(--sb-muted); }
.sb-actioncard--soon .sb-actioncard__cta { color: var(--sb-warn); background: #FEF3C7; padding: 4px 10px; border-radius: 999px; font-size: 12px; }

.sb-tipgrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
@media (max-width: 760px) { .sb-tipgrid { grid-template-columns: 1fr; } }
.sb-tip { display: flex; gap: 12px; background: #fff; border: 1px solid var(--sb-border-2); border-radius: var(--sb-r-lg); padding: 14px 16px; }
.sb-tip__icon { width: 38px; height: 38px; flex-shrink: 0; border-radius: 10px; background: var(--sb-brand-50); color: var(--sb-brand-700); display: inline-flex; align-items: center; justify-content: center; }
.sb-tip strong { font-family: var(--sb-font-bn-ui); font-weight: 600; color: var(--sb-ink); display: block; margin-bottom: 2px; font-size: 14.5px; }
.sb-tip p { margin: 0; color: var(--sb-text); font-size: 13.5px; line-height: 1.5; }

.sb-banner--info { background: var(--sb-info-bg); border-color: #93C5FD; color: #1E3A8A; }
.sb-banner--info .sb-banner__icon { background: rgba(37,99,235,.15); color: var(--sb-info); }

/* ============================================================
   MOCK TEST UI
   ============================================================ */
.sb-heromock { padding: 30px 16px; }
.sb-mock__intro { text-align: center; max-width: 720px; margin: 0 auto; }
.sb-mock__warn {
    display: flex; align-items: flex-start; gap: 12px;
    background: var(--sb-warn-bg); border: 1px solid #FCD34D; padding: 12px 16px; border-radius: var(--sb-r); color: #78350F;
    font-size: 14px; margin: 18px auto; max-width: 600px; text-align: left;
}
.sb-mock__warn-icon { color: var(--sb-warn); display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; background: rgba(217,119,6,.12); border-radius: 8px; flex-shrink: 0; }
.sb-mock__warn code { background: rgba(0,0,0,.08); padding: 2px 6px; border-radius: 4px; font-family: var(--sb-font-en); font-weight: 600; }
.sb-mock__h3 { font-family: var(--sb-font-bn-ui); font-weight: 600; color: var(--sb-ink); font-size: 16px; margin: 18px 0 12px; }
.sb-mock__presets { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; max-width: 720px; margin: 0 auto; }
.sb-mock__preset {
    background: #fff; border: 1px solid var(--sb-border); border-radius: var(--sb-r);
    padding: 16px 12px; cursor: pointer; transition: all .15s; text-align: center;
    font-family: var(--sb-font-bn-text);
}
.sb-mock__preset:hover { border-color: var(--sb-brand); transform: translateY(-2px); box-shadow: var(--sb-shadow); }
.sb-mock__preset strong { display: block; color: var(--sb-ink); font-size: 14.5px; margin-bottom: 4px; }
.sb-mock__preset span { color: var(--sb-muted); font-size: 12.5px; font-family: var(--sb-font-en); }
.sb-mock__hint { color: var(--sb-muted); font-size: 13px; display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; }

/* Result page enhancements */
.sb-result__metrics {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px;
    max-width: 700px; margin: 20px auto;
}
.sb-result__metric { background: #fff; border: 1px solid var(--sb-border-2); border-radius: var(--sb-r); padding: 14px; text-align: center; }
.sb-result__metric .num { font-family: var(--sb-font-en); font-size: 22px; font-weight: 700; color: var(--sb-ink); display: block; }
.sb-result__metric .lbl { color: var(--sb-muted); font-size: 12px; }
.sb-result__metric--ok .num { color: var(--sb-ok); }
.sb-result__metric--bad .num { color: var(--sb-bad); }
.sb-result__metric--neg .num { color: var(--sb-warn); }

.sb-subjects { max-width: 760px; margin: 24px auto; }
.sb-subjects h3 { font-family: var(--sb-font-bn-ui); font-size: 16px; color: var(--sb-ink); margin: 0 0 12px; text-align: left; }
/* Fixed columns so the bars + numbers line up across every row regardless of
   subject-name length (a long name no longer pushes its bar to the right). */
.sb-subject {
    display: grid; grid-template-columns: 200px 1fr 96px auto; align-items: center; gap: 12px;
    background: #fff; border: 1px solid var(--sb-border-2); border-radius: var(--sb-r); padding: 12px 16px;
    margin-bottom: 8px;
}
.sb-subject__name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: var(--sb-font-bn-ui); font-weight: 600; color: var(--sb-ink); font-size: 14px; text-align: left; }
.sb-subject__bar { height: 8px; background: #EFF1F5; border-radius: 999px; overflow: hidden; position: relative; }
.sb-subject__bar > span { display: block; height: 100%; background: var(--sb-brand); border-radius: 999px; transition: width .6s ease; }
.sb-subject--strong .sb-subject__bar > span { background: var(--sb-ok); }
.sb-subject--weak .sb-subject__bar > span { background: var(--sb-bad); }
.sb-subject__num { text-align: right; font-family: var(--sb-font-en); font-weight: 600; color: var(--sb-ink); font-size: 13.5px; }
.sb-subject__label { justify-self: start; white-space: nowrap; font-family: var(--sb-font-bn-ui); font-size: 11.5px; padding: 2px 8px; border-radius: 999px; }
.sb-subject--strong .sb-subject__label { background: var(--sb-ok-bg); color: var(--sb-ok); }
.sb-subject--mid .sb-subject__label    { background: #FEF3C7; color: #78350F; }
.sb-subject--weak .sb-subject__label   { background: #FEE2E2; color: #991B1B; }
@media (max-width: 600px) {
    .sb-subject { grid-template-columns: 110px 1fr auto; gap: 8px; padding: 10px 12px; }
    .sb-subject__label { display: none; }
}

/* ============================================================
   MY EXAMS / HISTORY PAGE
   ============================================================ */
.sb-history { padding: 24px 16px 60px; }
.sb-history__h3 { font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 16px; color: var(--sb-ink); margin: 24px 0 12px; }

/* Time period tabs */
.sb-tabs { display: inline-flex; gap: 4px; background: var(--sb-bg-2); padding: 4px; border-radius: 999px; margin: 12px 0 18px; flex-wrap: wrap; }
.sb-tab { padding: 8px 16px; border-radius: 999px; text-decoration: none; color: var(--sb-muted); font-size: 13.5px; font-family: var(--sb-font-bn-ui); font-weight: 500; transition: all .15s; }
.sb-tab:hover { color: var(--sb-ink); }
.sb-tab.is-active { background: #fff; color: var(--sb-ink); box-shadow: var(--sb-shadow-sm); font-weight: 600; }

.sb-history__stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 18px; }
@media (max-width: 700px) { .sb-history__stats { grid-template-columns: repeat(2, 1fr); } }

.sb-history__modes { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin: 14px 0 8px; }
.sb-history__modes > span { color: var(--sb-muted); font-size: 13px; }
.sb-pill-link { padding: 4px 12px; border-radius: 999px; background: var(--sb-bg-2); color: var(--sb-text); font-size: 13px; text-decoration: none; transition: all .15s; }
.sb-pill-link:hover { background: var(--sb-brand-50); color: var(--sb-brand-700); }
.sb-pill-link.is-active { background: var(--sb-brand); color: #fff; font-weight: 600; }
.sb-pill-link.is-active:hover { background: var(--sb-brand-700); color: #fff; }

/* Attempts list */
.sb-attempts { display: flex; flex-direction: column; gap: 8px; }
.sb-attempt {
    display: grid; grid-template-columns: 90px 1fr auto auto; gap: 14px; align-items: center;
    background: #fff; border: 1px solid var(--sb-border-2); border-radius: var(--sb-r-lg);
    padding: 12px 16px; text-decoration: none; color: var(--sb-ink);
    transition: all .15s;
}
.sb-attempt:hover { border-color: var(--sb-brand-100); background: var(--sb-brand-50); transform: translateX(4px); color: var(--sb-ink); }
.sb-attempt__date { font-family: var(--sb-font-en); font-size: 14px; font-weight: 600; color: var(--sb-ink); }
.sb-attempt__date span { display: block; font-size: 11px; font-weight: 400; color: var(--sb-muted); }
/* Fixed columns so the mode badge, score and percentage line up across every
   row instead of shifting with the (variable-width) mode badge. */
.sb-attempt__main { display: grid; grid-template-columns: 96px 72px auto; align-items: center; gap: 12px; }
.sb-attempt__main strong { font-family: var(--sb-font-en); font-size: 16px; color: var(--sb-ink); }
.sb-attempt__mode {
    justify-self: start;
    display: inline-block; padding: 3px 10px; border-radius: 999px;
    font-family: var(--sb-font-bn-ui); font-size: 11.5px; font-weight: 600;
}
.sb-attempt__mode.mode-daily   { background: var(--sb-info-bg); color: var(--sb-info); }
.sb-attempt__mode.mode-mock    { background: var(--sb-brand-50); color: var(--sb-brand-700); }
.sb-attempt__mode.mode-practice{ background: var(--sb-bg-2); color: var(--sb-muted); }
.sb-attempt__pct { justify-self: start; font-family: var(--sb-font-en); font-size: 13px; font-weight: 600; padding: 2px 8px; border-radius: 999px; }
.sb-attempt__pct.is-strong { background: var(--sb-ok-bg); color: var(--sb-ok); }
.sb-attempt__pct.is-mid    { background: #FEF3C7; color: #78350F; }
.sb-attempt__pct.is-weak   { background: #FEE2E2; color: #991B1B; }
.sb-attempt__time { font-family: var(--sb-font-en); font-size: 13px; color: var(--sb-muted); }
.sb-attempt__chev { color: var(--sb-muted); display: inline-flex; }
@media (max-width: 600px) {
    .sb-attempt { grid-template-columns: 70px 1fr auto; gap: 8px; padding: 10px 12px; }
    .sb-attempt__time { display: none; }
    .sb-attempt__main { grid-template-columns: 84px 56px auto; gap: 8px; }
}

.sb-detail .sb-q { background: #fff; }


/* Source/year badge for past-paper attribution */
.sb-source-badge { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; margin-left: 8px; border-radius: 999px; background: var(--sb-brand-50); color: var(--sb-brand-700); font-family: var(--sb-font-bn-ui); font-size: 11px; font-weight: 600; vertical-align: middle; }
.sb-source-badge .sb-icon { color: var(--sb-brand-700); }

/* ============================================================
   SIDEBAR NAV (logged-in app pages)
   ============================================================ */
.sb-sidebar {
    position: fixed; top: 0; left: 0; bottom: 0; width: 240px; z-index: 30;
    background: #fff; border-right: 1px solid var(--sb-border-2);
    display: flex; flex-direction: column;
    transition: transform .25s ease;
}
.sb-sidebar__brand {
    display: flex; align-items: center; gap: 10px;
    padding: 20px 18px 16px; text-decoration: none; color: var(--sb-ink);
    border-bottom: 1px solid var(--sb-border-2);
}
.sb-sidebar__brand .sb-brand__mark {
    width: 32px; height: 32px; border-radius: 9px; background: var(--sb-grad); color: #fff;
    display: inline-flex; align-items: center; justify-content: center; box-shadow: var(--sb-shadow);
}
.sb-sidebar__brandname { font-family: var(--sb-font-bn-ui); font-weight: 700; font-size: 16px; }

.sb-sidebar__head { display: flex; align-items: center; justify-content: space-between; padding: 16px 12px 12px 18px; border-bottom: 1px solid var(--sb-border-2); }
.sb-sidebar__head .sb-sidebar__brand { padding: 0; border: none; flex: 1; }
.sb-sidebar__close {
    background: transparent; border: 1px solid var(--sb-border); padding: 6px; border-radius: 8px;
    color: var(--sb-muted); cursor: pointer; display: none !important; align-items: center; justify-content: center;
}
.sb-sidebar__close:hover { color: var(--sb-bad); border-color: var(--sb-bad); }
@media (max-width: 900px) { .sb-sidebar__close { display: inline-flex !important; } }

.sb-sidebar__nav { flex: 1; padding: 12px 10px; display: flex; flex-direction: column; gap: 2px; overflow-y: auto; }
.sb-sidebar__item {
    display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 10px;
    text-decoration: none; color: var(--sb-text); font-size: 14px;
    font-family: var(--sb-font-bn-ui); font-weight: 500; transition: all .12s;
}
.sb-sidebar__item:hover { background: var(--sb-bg); color: var(--sb-ink); }
.sb-sidebar__item.is-active { background: var(--sb-brand-50); color: var(--sb-brand-700); font-weight: 600; }
.sb-sidebar__item.is-active .sb-sidebar__ic { color: var(--sb-brand); }
.sb-sidebar__ic { display: inline-flex; color: var(--sb-muted); }
.sb-sidebar__user {
    display: flex; align-items: center; gap: 10px; padding: 12px 14px;
    border-top: 1px solid var(--sb-border-2);
}
.sb-sidebar__avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--sb-grad); color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    font-family: var(--sb-font-bn-ui); font-weight: 700; font-size: 16px;
    flex-shrink: 0; text-transform: uppercase;
}
.sb-sidebar__userinfo { flex: 1; min-width: 0; }
.sb-sidebar__userinfo strong { display: block; font-size: 13px; color: var(--sb-ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sb-sidebar__userinfo small { color: var(--sb-muted); font-size: 11.5px; font-family: var(--sb-font-en); }
.sb-sidebar__logout {
    background: transparent; border: 1px solid var(--sb-border); padding: 6px 8px; border-radius: 8px;
    color: var(--sb-muted); cursor: pointer; transition: all .12s;
}
.sb-sidebar__logout:hover { color: var(--sb-bad); border-color: var(--sb-bad); }

/* Mobile toggle */
.sb-sidebar__toggle {
    display: none; position: fixed; top: 14px; left: 14px; z-index: 40;
    width: 42px; height: 42px; border-radius: 10px; background: #fff;
    border: 1px solid var(--sb-border); box-shadow: var(--sb-shadow);
    color: var(--sb-ink); cursor: pointer;
    align-items: center; justify-content: center;
}
.sb-sidebar__overlay {
    display: none; position: fixed; inset: 0; background: rgba(15,18,30,.45); z-index: 25;
}

/* Main shifted right when sidebar is on */
body.sb-has-sidebar .sb-app-main--with-sidebar { padding-left: 240px; min-height: 100vh; }

@media (max-width: 900px) {
    .sb-sidebar { transform: translateX(-100%); box-shadow: var(--sb-shadow-lg); }
    body.sb-sidebar-open .sb-sidebar { transform: translateX(0); }
    body.sb-sidebar-open .sb-sidebar__overlay { display: block; }
    .sb-sidebar__toggle { display: inline-flex; }
    body.sb-has-sidebar .sb-app-main--with-sidebar { padding-left: 0; padding-top: 60px; }
}

/* ============================================================
   WELCOME-BACK card on landing
   ============================================================ */
.sb-welcome .sb-welcome__msg { color: var(--sb-text); margin: 0 0 16px; font-size: 14.5px; }
.sb-welcome code { background: var(--sb-bg-2); padding: 2px 6px; border-radius: 4px; font-family: var(--sb-font-en); font-size: 12.5px; }

/* ============================================================
   FLOATING TIMER + PROGRESS BAR (during quiz)
   ============================================================ */
.sb-floating-timer {
    position: fixed; top: 16px; right: 16px; z-index: 50;
    background: #fff; border: 1px solid var(--sb-border); border-radius: 14px;
    box-shadow: var(--sb-shadow-lg);
    padding: 12px 16px; min-width: 180px; max-width: 260px;
    display: flex; flex-direction: column; gap: 6px;
}
.sb-floating-timer__head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.sb-floating-timer__time { font-family: var(--sb-font-en); font-weight: 700; font-size: 22px; color: var(--sb-ink); font-variant-numeric: tabular-nums; line-height: 1; }
.sb-floating-timer__lbl { color: var(--sb-muted); font-size: 11.5px; }
.sb-floating-timer.is-warn { border-color: var(--sb-warn); background: var(--sb-warn-bg); }
.sb-floating-timer.is-warn .sb-floating-timer__time { color: var(--sb-warn); }
.sb-floating-timer.is-danger { border-color: var(--sb-bad); background: #FEF2F2; animation: sb-pulse 1s ease-in-out infinite; }
.sb-floating-timer.is-danger .sb-floating-timer__time { color: var(--sb-bad); }
@keyframes sb-pulse { 50% { transform: scale(1.02); } }

.sb-floating-timer__progress { display: block; height: 6px; background: var(--sb-bg-2); border-radius: 999px; overflow: hidden; }
.sb-floating-timer__bar { display: block; height: 100%; background: var(--sb-brand); border-radius: 999px; transition: width .4s ease; }

.sb-floating-timer__count { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--sb-muted); }
.sb-floating-timer__count strong { color: var(--sb-ink); font-family: var(--sb-font-en); }

@media (max-width: 600px) {
    .sb-floating-timer { top: 8px; right: 8px; left: 8px; max-width: none; min-width: 0; padding: 10px 12px; }
    .sb-floating-timer__time { font-size: 18px; }
}

/* Hide the in-quiz inline timer when floating one is active */
body.sb-has-floating-timer .sb-quiz__bar { display: none !important; }

/* ============================================================
   DASHBOARD V3 — graphs + insights
   ============================================================ */
.sb-dash__grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 16px; margin: 6px 0 22px; }
@media (max-width: 900px) { .sb-dash__grid { grid-template-columns: 1fr; } }

.sb-dashpanel { background: #fff; border: 1px solid var(--sb-border-2); border-radius: var(--sb-r-lg); padding: 20px 22px; }
.sb-dashpanel__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.sb-dashpanel__head h3 { font-family: var(--sb-font-bn-ui); font-size: 15.5px; font-weight: 600; margin: 0; color: var(--sb-ink); display: inline-flex; align-items: center; gap: 6px; }
.sb-dashpanel__head a { color: var(--sb-brand); text-decoration: none; font-size: 13px; font-weight: 600; }
.sb-dashpanel__head a:hover { text-decoration: underline; }
.sb-dashpanel__hint { color: var(--sb-muted); font-size: 13px; }
.sb-empty { color: var(--sb-muted); font-size: 14px; margin: 16px 0; }

/* Bar chart */
.sb-barchart { display: flex; flex-direction: column; gap: 10px; }
.sb-barchart__row { display: grid; grid-template-columns: 130px 1fr 50px; gap: 12px; align-items: center; }
.sb-barchart__label { font-family: var(--sb-font-bn-ui); font-size: 13px; color: var(--sb-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sb-barchart__track { height: 10px; background: #EFF1F5; border-radius: 999px; overflow: hidden; position: relative; }
.sb-barchart__bar { display: block; height: 100%; background: var(--sb-brand); border-radius: 999px; transition: width .8s cubic-bezier(.2,.8,.2,1); }
.sb-barchart__row--strong .sb-barchart__bar { background: var(--sb-ok); }
.sb-barchart__row--weak   .sb-barchart__bar { background: var(--sb-bad); }
.sb-barchart__val { font-family: var(--sb-font-en); font-weight: 600; font-size: 13px; color: var(--sb-ink); text-align: right; }
@media (max-width: 600px) { .sb-barchart__row { grid-template-columns: 110px 1fr 44px; gap: 8px; } }

/* Sparkline */
.sb-spark { background: var(--sb-bg); border-radius: 10px; padding: 12px; }
.sb-spark svg { display: block; }
.sb-spark__lbls { display: flex; justify-content: space-between; margin-top: 6px; padding: 0 6px; }
.sb-spark__lbls span { font-size: 11px; color: var(--sb-muted); font-family: var(--sb-font-en); }

/* Streak dots row inside dashpanel */
.sb-dots-row { margin-top: 14px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.sb-dots-row small { color: var(--sb-muted); font-size: 12px; }
.sb-dots-row .sb-dots { gap: 4px; }
.sb-dots-row .sb-dot { width: 16px; height: 16px; border-radius: 4px; }

/* Strong / Weak insight cards */
.sb-dash__insights { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 22px; }
@media (max-width: 700px) { .sb-dash__insights { grid-template-columns: 1fr; } }
.sb-insight { display: flex; align-items: center; gap: 14px; padding: 16px 18px; border-radius: var(--sb-r-lg); border: 1px solid; }
.sb-insight strong { display: block; font-family: var(--sb-font-bn-ui); font-size: 14px; margin-bottom: 4px; }
.sb-insight p { margin: 0; font-size: 13.5px; color: var(--sb-text); line-height: 1.5; }
.sb-insight__icon { width: 40px; height: 40px; flex-shrink: 0; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; }
.sb-insight--strong { background: var(--sb-ok-bg); border-color: #BBF7D0; }
.sb-insight--strong strong { color: var(--sb-ok); }
.sb-insight--strong .sb-insight__icon { background: rgba(22,163,74,.15); color: var(--sb-ok); }
.sb-insight--weak { background: #FEF2F2; border-color: #FECACA; }
.sb-insight--weak strong { color: var(--sb-bad); }
.sb-insight--weak .sb-insight__icon { background: rgba(220,38,38,.12); color: var(--sb-bad); }

/* Recent attempts strip in dashboard */
.sb-attempts__more { display: inline-flex; align-items: center; gap: 6px; color: var(--sb-brand); font-weight: 600; font-size: 13.5px; padding: 10px 14px; }
.sb-attempts__more:hover { gap: 10px; transition: gap .15s; }

/* Hero with primary CTA on the right */
.sb-dash__hero { align-items: center; }

/* Streak dots from start: today is leftmost */
.sb-dot { transition: all .2s; }


/* ============================================================
   ACCOUNT SETTINGS PAGE
   ============================================================ */
.sb-account { padding: 24px 16px 60px; }
.sb-account__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 800px) { .sb-account__grid { grid-template-columns: 1fr; } }
.sb-account__panel { background: #fff; border: 1px solid var(--sb-border-2); border-radius: var(--sb-r-lg); padding: 24px 26px; box-shadow: var(--sb-shadow-sm); }
.sb-account__panel h3 { font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 17px; margin: 0 0 18px; color: var(--sb-ink); }

.sb-account__avatar-wrap { display: flex; align-items: center; gap: 18px; padding-bottom: 18px; border-bottom: 1px solid var(--sb-border-2); margin-bottom: 18px; }
.sb-account__avatar {
    width: 88px; height: 88px; border-radius: 50%;
    background: var(--sb-grad); color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    font-family: var(--sb-font-bn-ui); font-weight: 700; font-size: 36px;
    background-size: cover; background-position: center;
    flex-shrink: 0; text-transform: uppercase;
    box-shadow: var(--sb-shadow);
}
.sb-account__hint { color: var(--sb-muted); font-size: 12px; margin: 6px 0 0; }
.sb-account__form .sb-input { margin-bottom: 4px; }
.sb-account__sub { padding-bottom: 14px; border-bottom: 1px solid var(--sb-border-2); margin-bottom: 16px; }
.sb-account__sub p { color: var(--sb-text); font-size: 14px; margin: 12px 0 0; line-height: 1.6; }

.sb-account__danger { padding: 16px 18px; background: #FEF2F2; border: 1px solid #FECACA; border-radius: var(--sb-r); margin-bottom: 14px; }
.sb-account__danger h4 { font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 14.5px; color: #991B1B; margin: 0 0 6px; }
.sb-account__danger p { color: var(--sb-text); font-size: 13px; margin: 0 0 12px; line-height: 1.5; }

.sb-btn--danger { background: var(--sb-bad); color: #fff; }
.sb-btn--danger:hover { background: #991B1B; color: #fff; }
.sb-account__logout-row { padding-top: 14px; border-top: 1px solid var(--sb-border-2); }

/* Status pills */
.sb-status { display: inline-block; padding: 3px 12px; border-radius: 999px; font-family: var(--sb-font-en); font-size: 11.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .03em; }
.sb-status--active   { background: var(--sb-ok-bg); color: var(--sb-ok); }
.sb-status--inactive { background: #FEE2E2; color: #991B1B; }
.sb-status--free     { background: var(--sb-bg-2); color: var(--sb-muted); }
.sb-status--trial    { background: #FEF3C7; color: #78350F; }


/* ============================================================
   CV MAKER
   ============================================================ */
.sb-cv { padding: 24px 16px 60px; }
.sb-cv__grid { display: grid; grid-template-columns: 2fr 1fr; gap: 18px; align-items: start; }
@media (max-width: 900px) { .sb-cv__grid { grid-template-columns: 1fr; } }
.sb-cv__form, .sb-cv__panel { background: #fff; border: 1px solid var(--sb-border-2); border-radius: var(--sb-r-lg); padding: 22px; box-shadow: var(--sb-shadow-sm); }
.sb-cv__form h3 { font-family: var(--sb-font-bn-ui); font-size: 15px; color: var(--sb-ink); margin: 18px 0 8px; padding-top: 14px; border-top: 1px solid var(--sb-border-2); }
.sb-cv__form h3:first-child { margin-top: 0; padding-top: 0; border: none; }
.sb-cv__form .sb-input { margin-bottom: 6px; }
.sb-cv__side { display: flex; flex-direction: column; gap: 14px; position: sticky; top: 16px; }
.sb-cv__panel h3 { font-family: var(--sb-font-bn-ui); font-size: 14.5px; margin: 0 0 6px; color: var(--sb-ink); }
.sb-cv__hint { color: var(--sb-muted); font-size: 12.5px; margin: 0 0 12px; }
.sb-cv__imgbox { width: 100%; min-height: 160px; border: 2px dashed var(--sb-border); border-radius: 10px; display: flex; align-items: center; justify-content: center; background: var(--sb-bg); margin-bottom: 10px; overflow: hidden; }
.sb-cv__imgbox img { max-width: 100%; max-height: 200px; }
.sb-cv__imgbox--sig { min-height: 80px; }
.sb-cv__imgbox--sig img { max-height: 80px; }
.sb-cv__imgbox span { color: var(--sb-muted); font-size: 13px; }

/* Two-column inline grid inside the form (personal info, etc.) */
.sb-cv__two { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 14px; margin-bottom: 6px; }
@media (max-width: 640px) { .sb-cv__two { grid-template-columns: 1fr; } }

/* Repeatable row cards */
.sb-cv__section { margin-bottom: 4px; }
.sb-cv__rows { display: flex; flex-direction: column; gap: 10px; margin-bottom: 10px; }
.sb-cv__row { background: var(--sb-bg); border: 1px solid var(--sb-border-2); border-radius: var(--sb-r-sm); padding: 12px 14px; position: relative; }
.sb-cv__row-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.sb-cv__row-num { display: inline-flex; width: 22px; height: 22px; align-items: center; justify-content: center; border-radius: 50%; background: var(--sb-brand); color: #fff; font-size: 12px; font-weight: 700; font-family: var(--sb-font-en); }
.sb-cv__row-del { background: transparent; border: none; color: var(--sb-muted); font-size: 22px; line-height: 1; cursor: pointer; padding: 0 6px; border-radius: 4px; }
.sb-cv__row-del:hover { color: #DC2626; background: #FEE2E2; }
.sb-cv__row .sb-input { margin: 0; }

.sb-cv__row-grid { display: grid; gap: 8px; }
.sb-cv__row-grid--edu { grid-template-columns: 1fr 1fr 1fr; }
.sb-cv__row-grid--edu input:nth-child(1),
.sb-cv__row-grid--edu input:nth-child(2) { grid-column: span 1; }
@media (max-width: 640px) { .sb-cv__row-grid--edu { grid-template-columns: 1fr; } }

.sb-cv__row-grid--exp { grid-template-columns: 1fr 1fr; }
.sb-cv__row-grid--exp .sb-cv__row-desc { grid-column: 1 / -1; }
.sb-cv__row-grid--exp .sb-cv__row-check { grid-column: 1 / -1; font-size: 13px; color: var(--sb-muted); display: inline-flex; gap: 6px; align-items: center; cursor: pointer; }
@media (max-width: 640px) { .sb-cv__row-grid--exp { grid-template-columns: 1fr; } }

.sb-cv__row-grid--vol { grid-template-columns: 1fr 1fr 1fr; }
.sb-cv__row-grid--vol .sb-cv__row-desc { grid-column: 1 / -1; }
@media (max-width: 640px) { .sb-cv__row-grid--vol { grid-template-columns: 1fr; } }

.sb-cv__row-grid--ach { grid-template-columns: 2fr 1fr 2fr; }
@media (max-width: 640px) { .sb-cv__row-grid--ach { grid-template-columns: 1fr; } }

.sb-cv__row-grid--ref { grid-template-columns: 1fr 1fr 1fr; }
.sb-cv__row-grid--ref input:nth-child(4),
.sb-cv__row-grid--ref input:nth-child(5) { grid-column: span 1; }
@media (max-width: 640px) { .sb-cv__row-grid--ref { grid-template-columns: 1fr; } }

.sb-cv__add { width: 100%; border: 1px dashed var(--sb-border) !important; background: transparent; color: var(--sb-brand); }
.sb-cv__add:hover { background: var(--sb-bg-2); }

.sb-cv__actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--sb-border-2); }
.sb-cv__actions .sb-btn { flex: 1; min-width: 180px; }

/* Print layout */
.sb-cv__print { display: none; }
@media print {
    /* The CV sheet (#sb-cv-print-out) is moved to <body> by JS just before
       printing. Collapse every other top-level element OUT of the flow with
       display:none — not visibility:hidden — otherwise the hidden app/form
       still reserves height and the browser emits several blank pages. */
    body > *:not(.sb-cv__print) { display: none !important; }
    .sb-cv__print {
        display: block !important;
        position: static;
        width: auto;
        margin: 0;
        padding: 0;
        font-family: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
        color: #111;
        font-size: 11.5pt;
        line-height: 1.45;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    /* A4 with real page margins, applied to every page (incl. overflow pages) */
    @page { size: A4; margin: 14mm; }

    .sb-cv__print-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 18px; margin-bottom: 14px; border-bottom: 2.5px solid #111; padding-bottom: 12px; }
    .sb-cv__print-id { flex: 1; }
    .sb-cv__print-id h1 { margin: 0 0 4px; font-size: 22pt; font-weight: 700; letter-spacing: -.3px; }
    .sb-cv__print-id .sb-cv__print-contact { margin: 4px 0 0; font-size: 10.5pt; color: #444; }
    .sb-cv__print-id .sb-cv__print-addr { margin: 4px 0 0; font-size: 10.5pt; color: #444; }
    .sb-cv__print-id .sb-cv__print-obj { margin: 8px 0 0; font-size: 11pt; font-style: italic; color: #333; max-width: 95%; }
    .sb-cv__print-photo { width: 96px; height: 96px; object-fit: cover; border: 1px solid #999; }

    .sb-cv__print section { margin-top: 12px; page-break-inside: avoid; }
    .sb-cv__print h2 { font-size: 12pt; margin: 0 0 6px; padding: 4px 0 3px; border-bottom: 1px solid #999; color: #111; font-weight: 700; letter-spacing: .3px; text-transform: none; }

    .sb-cv__print-table { width: 100%; border-collapse: collapse; font-size: 10.5pt; }
    .sb-cv__print-table th { width: 30%; text-align: left; padding: 3px 8px 3px 0; font-weight: 600; color: #444; vertical-align: top; }
    .sb-cv__print-table td { padding: 3px 0; vertical-align: top; }

    .sb-cv__print-edu { width: 100%; border-collapse: collapse; font-size: 10.5pt; }
    .sb-cv__print-edu thead th { background: #F4F4F6; border: 1px solid #999; padding: 5px 7px; text-align: left; font-weight: 700; font-size: 10pt; }
    .sb-cv__print-edu tbody td { border: 1px solid #BBB; padding: 5px 7px; vertical-align: top; }
    .sb-cv__print-edu tbody td small { color: #555; }

    .sb-cv__print-role { margin-bottom: 8px; }
    .sb-cv__print-rolehead { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }
    .sb-cv__print-rolehead strong { font-size: 11pt; }
    .sb-cv__print-period { color: #555; font-size: 10pt; font-family: var(--sb-font-en); white-space: nowrap; }
    .sb-cv__print-role p { margin: 2px 0 0; font-size: 10.5pt; color: #333; }

    .sb-cv__print-list { padding-left: 18px; margin: 0; }
    .sb-cv__print-list li { margin-bottom: 3px; font-size: 10.5pt; }

    .sb-cv__print-refs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; font-size: 10.5pt; }
    .sb-cv__print-ref { padding: 6px 0; }

    .sb-cv__print-sig { margin-top: 26px; text-align: right; font-size: 10pt; color: #444; }
    .sb-cv__print-sig img { width: 140px; height: auto; display: block; margin-left: auto; margin-bottom: 2px; }
}

/* ============================================================
   VOCAB THEME BLOCK — Sobdo Sikhi screens
   (flashcard · quiz · word-bank · word-web · progress · WOTD)
   Reuses sb-* atoms (sb-btn / sb-card / sb-statcard / sb-input).
   English words render in a clean Latin face (--sb-font-en).
   ============================================================ */

/* Latin word rendering — every English headword/option/chip */
.sb-en { font-family: var(--sb-font-en); letter-spacing: -0.01em; }
.sb-pos { font-family: var(--sb-font-en); font-style: italic; color: var(--sb-muted); font-weight: 500; }

/* Gold accent chip / pill */
.sb-pill--gold { background: var(--sb-gold-50); color: var(--sb-gold-600); border: 1px solid var(--sb-gold-100); }
.sb-chip-tag { display: inline-block; padding: 2px 9px; border-radius: 999px; font-family: var(--sb-font-en); font-size: 11px; font-weight: 600; background: var(--sb-brand-50); color: var(--sb-brand-700); }
.sb-chip-tag--cat { background: var(--sb-gold-50); color: var(--sb-gold-600); }

/* Generic screen header used by the inner app pages */
.sb-screen { max-width: 1000px; margin: 0 auto; padding: 24px 16px 60px; }
.sb-screen__head { margin-bottom: 22px; }
.sb-screen__head h1 { font-family: var(--sb-font-bn-ui); font-size: clamp(22px, 4vw, 30px); font-weight: 700; color: var(--sb-ink); margin: 6px 0 4px; letter-spacing: -.01em; }
.sb-screen__head p { color: var(--sb-muted); margin: 0; font-size: 15px; }

/* ---- Listen (audio) button: scoped + tag-qualified + !important ---- */
.sb-vocab .sb-listen,
button.sb-listen {
    display: inline-flex !important; align-items: center !important; justify-content: center !important;
    gap: 6px !important;
    width: auto !important; min-width: 0 !important; height: auto !important;
    padding: 7px 13px !important; margin: 0 !important;
    border-radius: 999px !important; border: 1px solid var(--sb-brand-100) !important;
    background: var(--sb-brand-50) !important; color: var(--sb-brand-700) !important;
    font-family: var(--sb-font-bn-ui) !important; font-size: 13px !important; font-weight: 600 !important;
    line-height: 1 !important; cursor: pointer !important; box-shadow: none !important;
    transition: background .15s, transform .12s;
}
.sb-vocab .sb-listen:hover, button.sb-listen:hover { background: var(--sb-brand-100) !important; transform: translateY(-1px); }
.sb-vocab .sb-listen:disabled, button.sb-listen:disabled { opacity: .55 !important; cursor: progress !important; transform: none !important; }
.sb-vocab .sb-listen.is-playing, button.sb-listen.is-playing { background: var(--sb-brand) !important; color: #fff !important; }
.sb-vocab .sb-listen svg, button.sb-listen svg { width: 16px !important; height: 16px !important; }

/* ====================== WORD OF THE DAY ====================== */
.sb-wotd {
    position: relative; overflow: hidden;
    background: var(--sb-grad); color: #fff;
    border-radius: var(--sb-r-xl); padding: 26px 26px 24px;
    box-shadow: var(--sb-shadow-md);
}
.sb-wotd::after {
    content: ""; position: absolute; right: -40px; top: -40px; width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(212,160,23,.35) 0%, transparent 70%); pointer-events: none;
}
.sb-wotd__eyebrow { display: inline-flex; align-items: center; gap: 6px; font-family: var(--sb-font-bn-ui); font-size: 12.5px; font-weight: 600; letter-spacing: .03em; background: rgba(255,255,255,.16); padding: 5px 12px; border-radius: 999px; }
.sb-wotd__word { font-family: var(--sb-font-en); font-size: clamp(30px, 7vw, 46px); font-weight: 800; letter-spacing: -.02em; margin: 14px 0 2px; line-height: 1.05; }
.sb-wotd__meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.sb-wotd__pos { font-family: var(--sb-font-en); font-style: italic; opacity: .9; font-size: 15px; }
.sb-wotd__ipa { font-family: var(--sb-font-en); opacity: .85; font-size: 14px; }
.sb-wotd__bn { font-family: var(--sb-font-bn-text); font-size: 20px; font-weight: 600; margin: 0 0 10px; }
.sb-wotd__ex { font-size: 14.5px; opacity: .92; font-style: italic; margin: 0 0 16px; max-width: 60ch; }
.sb-wotd__ex b { font-style: normal; color: var(--sb-gold-50); font-weight: 700; }
.sb-wotd .sb-listen, .sb-wotd button.sb-listen {
    background: rgba(255,255,255,.18) !important; color: #fff !important; border-color: rgba(255,255,255,.3) !important;
}
.sb-wotd .sb-listen:hover, .sb-wotd button.sb-listen:hover { background: rgba(255,255,255,.28) !important; }

/* Home quick tiles */
.sb-home-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 18px; margin-top: 18px; align-items: start; }
@media (max-width: 820px) { .sb-home-grid { grid-template-columns: 1fr; } }
.sb-home-side { display: grid; gap: 14px; }
.sb-cta-card {
    display: flex; align-items: center; gap: 14px; text-decoration: none;
    background: var(--sb-card); border: 1px solid var(--sb-border); border-radius: var(--sb-r-lg);
    padding: 18px; box-shadow: var(--sb-shadow-sm); transition: transform .14s, box-shadow .15s, border-color .15s; color: var(--sb-ink);
}
.sb-cta-card:hover { transform: translateY(-2px); box-shadow: var(--sb-shadow); border-color: var(--sb-brand-100); }
.sb-cta-card__icon { width: 46px; height: 46px; flex: 0 0 46px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; background: var(--sb-brand-50); color: var(--sb-brand); }
.sb-cta-card--gold .sb-cta-card__icon { background: var(--sb-gold-50); color: var(--sb-gold-600); }
.sb-cta-card__body { flex: 1; }
.sb-cta-card__body strong { display: block; font-family: var(--sb-font-bn-ui); font-size: 16px; color: var(--sb-ink); }
.sb-cta-card__body span { font-size: 13px; color: var(--sb-muted); }
.sb-cta-card__big { font-family: var(--sb-font-en); font-size: 26px; font-weight: 800; color: var(--sb-brand); line-height: 1; }
.sb-cta-card--gold .sb-cta-card__big { color: var(--sb-gold-600); }

.sb-tiles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 18px; }
.sb-tile {
    text-decoration: none; background: var(--sb-card); border: 1px solid var(--sb-border); border-radius: var(--sb-r-lg);
    padding: 18px 16px; text-align: center; box-shadow: var(--sb-shadow-sm); transition: transform .14s, box-shadow .15s, border-color .15s; color: var(--sb-ink);
}
.sb-tile:hover { transform: translateY(-2px); box-shadow: var(--sb-shadow); border-color: var(--sb-brand-100); }
.sb-tile__ic { width: 44px; height: 44px; margin: 0 auto 8px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: var(--sb-brand-50); color: var(--sb-brand); }
.sb-tile strong { display: block; font-family: var(--sb-font-bn-ui); font-size: 15px; color: var(--sb-ink); }
.sb-tile span { font-size: 12px; color: var(--sb-muted); }

/* ====================== FLASHCARD (Learn / SRS) ====================== */
.sb-flash-wrap { max-width: 600px; margin: 10px auto 0; }
.sb-flash-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 14px; font-size: 13.5px; color: var(--sb-muted); }
.sb-flash-progress { flex: 1; height: 8px; border-radius: 999px; background: var(--sb-bg-2); overflow: hidden; }
.sb-flash-progress span { display: block; height: 100%; border-radius: 999px; background: var(--sb-grad); transition: width .3s ease; }

.sb-flash {
    position: relative; background: var(--sb-card); border: 1px solid var(--sb-border);
    border-radius: var(--sb-r-xl); box-shadow: var(--sb-shadow-md);
    min-height: 320px; padding: 30px 26px; display: flex; flex-direction: column;
    align-items: center; justify-content: center; text-align: center; cursor: pointer;
    user-select: none; transition: box-shadow .2s, transform .2s;
}
.sb-flash:hover { box-shadow: var(--sb-shadow-lg); }
.sb-flash:focus-visible { outline: none; box-shadow: var(--sb-ring), var(--sb-shadow-md); }
.sb-flash__tag { position: absolute; top: 14px; left: 16px; }
.sb-flash__hint { position: absolute; bottom: 12px; left: 0; right: 0; font-size: 12px; color: var(--sb-muted); }
.sb-flash__word { font-family: var(--sb-font-en); font-size: clamp(30px, 8vw, 48px); font-weight: 800; color: var(--sb-ink); letter-spacing: -.02em; line-height: 1.1; }
.sb-flash__pos { font-family: var(--sb-font-en); font-style: italic; color: var(--sb-muted); margin-top: 4px; font-size: 16px; }
.sb-flash__face--back { display: none; }
.sb-flash.is-flipped .sb-flash__face--front { display: none; }
.sb-flash.is-flipped .sb-flash__face--back { display: block; width: 100%; }
.sb-flash__bn { font-family: var(--sb-font-bn-text); font-size: clamp(20px, 5vw, 28px); font-weight: 700; color: var(--sb-brand-700); margin-bottom: 8px; }
.sb-flash__def { font-size: 15px; color: var(--sb-text); margin: 0 auto 10px; max-width: 46ch; }
.sb-flash__ex { font-size: 14px; font-style: italic; color: var(--sb-muted); margin: 0 auto 14px; max-width: 48ch; }
.sb-flash__audio-row { display: flex; justify-content: center; }

.sb-flash-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 16px; }
.sb-flash-actions .sb-btn { padding: 14px; font-size: 16px; }
.sb-btn--know { background: var(--sb-ok); color: #fff; box-shadow: 0 6px 16px -5px rgba(22,163,74,.5); }
.sb-btn--know:hover { background: #15803D; color: #fff; }
.sb-btn--dontknow { background: #fff; color: var(--sb-bad); border: 1px solid #FCA5A5; }
.sb-btn--dontknow:hover { background: #FEF2F2; color: var(--sb-bad); }

/* Session summary */
.sb-srs-summary { text-align: center; max-width: 480px; margin: 20px auto 0; }
.sb-srs-summary h2 { font-family: var(--sb-font-bn-ui); margin: 0 0 6px; }

/* ====================== QUIZ (vocab MCQ) ====================== */
.sb-quizpick { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-top: 18px; }
.sb-quizpick__btn {
    text-align: left; background: var(--sb-card); border: 1px solid var(--sb-border); border-radius: var(--sb-r-lg);
    padding: 18px; cursor: pointer; box-shadow: var(--sb-shadow-sm); transition: transform .14s, box-shadow .15s, border-color .15s;
    display: flex; align-items: flex-start; gap: 12px;
}
.sb-quizpick__btn:hover { transform: translateY(-2px); box-shadow: var(--sb-shadow); border-color: var(--sb-brand-100); }
.sb-quizpick__btn .sb-tile__ic { margin: 0; flex: 0 0 42px; }
.sb-quizpick__btn strong { display: block; font-family: var(--sb-font-bn-ui); font-size: 16px; color: var(--sb-ink); }
.sb-quizpick__btn span { font-size: 12.5px; color: var(--sb-muted); }

.sb-vq { max-width: 620px; margin: 0 auto; }
.sb-vq__bar { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.sb-vq__count { font-family: var(--sb-font-en); font-weight: 700; color: var(--sb-brand); font-size: 14px; white-space: nowrap; }
.sb-vq__track { flex: 1; height: 8px; border-radius: 999px; background: var(--sb-bg-2); overflow: hidden; }
.sb-vq__track span { display: block; height: 100%; background: var(--sb-grad); border-radius: 999px; transition: width .3s; }
.sb-vq__q { background: var(--sb-card); border: 1px solid var(--sb-border); border-radius: var(--sb-r-lg); padding: 22px; box-shadow: var(--sb-shadow-sm); }
.sb-vq__prompt { font-family: var(--sb-font-bn-ui); font-size: 18px; font-weight: 600; color: var(--sb-ink); margin: 0 0 4px; }
.sb-vq__focus { font-family: var(--sb-font-en); font-size: 26px; font-weight: 800; color: var(--sb-brand-700); letter-spacing: -.01em; }
.sb-vq__listen { margin-top: 8px; }
.sb-vq__opts { display: grid; gap: 10px; margin-top: 16px; }
.sb-vq__opt {
    display: flex; align-items: center; gap: 10px; text-align: left; width: 100%;
    background: #fff; border: 1.5px solid var(--sb-border); border-radius: var(--sb-r); padding: 13px 15px;
    font-size: 15.5px; color: var(--sb-text); cursor: pointer; transition: border-color .12s, background .12s, box-shadow .12s;
    font-family: var(--sb-font-bn-text);
}
.sb-vq__opt .sb-en { font-family: var(--sb-font-en); }
.sb-vq__opt:hover:not(:disabled) { border-color: var(--sb-brand); background: var(--sb-brand-50); }
.sb-vq__opt__key { width: 26px; height: 26px; flex: 0 0 26px; border-radius: 7px; background: var(--sb-bg-2); color: var(--sb-muted); font-family: var(--sb-font-en); font-weight: 700; font-size: 13px; display: inline-flex; align-items: center; justify-content: center; }
.sb-vq__opt.is-correct { border-color: var(--sb-ok); background: var(--sb-ok-bg); color: #14532D; font-weight: 600; }
.sb-vq__opt.is-correct .sb-vq__opt__key { background: var(--sb-ok); color: #fff; }
.sb-vq__opt.is-wrong { border-color: var(--sb-bad); background: #FEF2F2; color: #7F1D1D; }
.sb-vq__opt.is-wrong .sb-vq__opt__key { background: var(--sb-bad); color: #fff; }
.sb-vq__opt:disabled { cursor: default; }
.sb-vq__expl { margin-top: 14px; padding: 12px 14px; background: var(--sb-brand-50); border-radius: var(--sb-r); font-size: 14px; color: var(--sb-ink-2); border: 1px solid var(--sb-brand-100); }
.sb-vq__expl b { color: var(--sb-brand-700); }
.sb-vq__next { margin-top: 16px; }

/* Quiz result */
.sb-vqresult { text-align: center; max-width: 520px; margin: 10px auto 0; }
.sb-vqresult__score { font-family: var(--sb-font-en); font-size: 56px; font-weight: 800; color: var(--sb-brand); line-height: 1; }
.sb-vqresult__bn { color: var(--sb-muted); margin: 6px 0 18px; }
.sb-vqreview { text-align: left; margin-top: 20px; display: grid; gap: 10px; }
.sb-vqreview__item { background: var(--sb-card); border: 1px solid var(--sb-border); border-left-width: 4px; border-radius: var(--sb-r); padding: 12px 14px; font-size: 14px; }
.sb-vqreview__item.is-ok { border-left-color: var(--sb-ok); }
.sb-vqreview__item.is-no { border-left-color: var(--sb-bad); }
.sb-vqreview__w { font-family: var(--sb-font-en); font-weight: 700; color: var(--sb-ink); }
.sb-vqreview__a { color: var(--sb-muted); font-size: 13px; margin-top: 2px; }
.sb-vqreview__a b { color: var(--sb-ok); }

/* ====================== WORD BANK ====================== */
.sb-wb-controls { display: flex; flex-wrap: wrap; gap: 10px; margin: 4px 0 18px; align-items: center; }
.sb-wb-search { flex: 1; min-width: 220px; }
.sb-wb-filters { display: flex; gap: 8px; flex-wrap: wrap; }
.sb-wb-select { font-family: var(--sb-font-bn-ui); font-size: 13.5px; padding: 9px 12px; border: 1px solid var(--sb-border); border-radius: var(--sb-r-sm); background: #fff; color: var(--sb-ink-2); }
.sb-wb-select:focus { outline: none; border-color: var(--sb-brand); box-shadow: var(--sb-ring); }
.sb-wb-count { font-size: 13px; color: var(--sb-muted); margin-bottom: 12px; }

.sb-wb-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.sb-wcard { background: var(--sb-card); border: 1px solid var(--sb-border); border-radius: var(--sb-r-lg); box-shadow: var(--sb-shadow-sm); overflow: hidden; transition: box-shadow .15s, border-color .15s; }
.sb-wcard:hover { box-shadow: var(--sb-shadow); border-color: var(--sb-brand-100); }
.sb-wcard__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; padding: 15px 16px 10px; cursor: pointer; }
.sb-wcard__main { min-width: 0; }
.sb-wcard__w { font-family: var(--sb-font-en); font-size: 19px; font-weight: 700; color: var(--sb-ink); letter-spacing: -.01em; }
.sb-wcard__pos { font-family: var(--sb-font-en); font-style: italic; color: var(--sb-muted); font-size: 13px; margin-left: 6px; }
.sb-wcard__seen { display: inline-block; margin-left: 6px; font-family: var(--sb-font-bn-ui); font-size: 11px; font-weight: 700; color: #0f9d6e; background: rgba(16,185,129,.12); padding: 1px 7px; border-radius: 999px; vertical-align: middle; }
.sb-wcard.is-seen { box-shadow: inset 3px 0 0 0 #10b981; }
.sb-wcard.is-seen:hover { box-shadow: inset 3px 0 0 0 #10b981, var(--sb-shadow); }
.sb-wcard__bn { font-family: var(--sb-font-bn-text); color: var(--sb-brand-700); font-weight: 600; font-size: 15px; margin-top: 2px; }
.sb-wcard__tags { display: flex; gap: 5px; flex-wrap: wrap; margin-top: 8px; }
/* Favourite star — scoped + tag-qualified + !important (theme-hardening) */
.sb-wcard .sb-fav, button.sb-fav {
    width: 34px !important; height: 34px !important; min-width: 0 !important; flex: 0 0 34px !important;
    padding: 0 !important; margin: 0 !important; border-radius: 50% !important;
    border: 1px solid var(--sb-border) !important; background: #fff !important;
    color: #CBD0DA !important; font-size: 17px !important; line-height: 1 !important;
    display: inline-flex !important; align-items: center !important; justify-content: center !important;
    cursor: pointer !important; box-shadow: none !important; transition: color .15s, transform .12s, border-color .15s;
}
.sb-wcard .sb-fav:hover, button.sb-fav:hover { transform: scale(1.1); border-color: var(--sb-gold-100) !important; }
.sb-wcard .sb-fav.is-fav, button.sb-fav.is-fav { color: var(--sb-gold) !important; border-color: var(--sb-gold-100) !important; background: var(--sb-gold-50) !important; }

.sb-wcard__detail { display: none; padding: 0 16px 16px; border-top: 1px solid var(--sb-border-2); }
.sb-wcard.is-open .sb-wcard__detail { display: block; }
.sb-wcard__def { font-size: 14px; color: var(--sb-text); margin: 12px 0 8px; }
.sb-wcard__ex { font-size: 13.5px; font-style: italic; color: var(--sb-muted); margin: 0 0 10px; }
.sb-wcard__row { margin: 6px 0; font-size: 13px; }
.sb-wcard__row b { font-family: var(--sb-font-bn-ui); color: var(--sb-ink-2); margin-right: 6px; }
.sb-synchip { display: inline-block; font-family: var(--sb-font-en); font-size: 12.5px; padding: 3px 9px; border-radius: 999px; margin: 2px 3px 2px 0; }
.sb-synchip--syn { background: var(--sb-ok-bg); color: #166534; }
.sb-synchip--ant { background: #FEF2F2; color: #991B1B; }
.sb-wcard__audio { margin-top: 8px; }

/* ====================== WORD WEB (Datamuse explorer) ====================== */
.sb-ww-search { display: flex; gap: 10px; max-width: 520px; margin: 4px 0 22px; }
.sb-ww-search .sb-input { flex: 1; }
.sb-ww-center { text-align: center; margin: 10px 0 24px; }
.sb-ww-center__w { font-family: var(--sb-font-en); font-size: clamp(28px, 7vw, 44px); font-weight: 800; color: var(--sb-brand-700); letter-spacing: -.02em; }
.sb-ww-center__sub { color: var(--sb-muted); font-size: 14px; }
.sb-ww-group { margin-bottom: 22px; }
.sb-ww-group__title { display: flex; align-items: center; gap: 8px; font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 15px; color: var(--sb-ink-2); margin-bottom: 10px; }
.sb-ww-group__title .sb-dot-lg { width: 10px; height: 10px; border-radius: 50%; }
.sb-ww-chips { display: flex; flex-wrap: wrap; gap: 9px; }
.sb-ww-chip {
    font-family: var(--sb-font-en); font-size: 14.5px; font-weight: 500;
    padding: 8px 15px; border-radius: 999px; border: 1px solid var(--sb-border); background: #fff; color: var(--sb-ink-2);
    cursor: pointer; transition: transform .12s, box-shadow .15s, border-color .15s, background .15s;
}
.sb-ww-chip:hover { transform: translateY(-2px); box-shadow: var(--sb-shadow-sm); border-color: var(--sb-brand); background: var(--sb-brand-50); color: var(--sb-brand-700); }
.sb-ww-chip--syn:hover { border-color: var(--sb-ok); background: var(--sb-ok-bg); color: #166534; }
.sb-ww-chip--ant:hover { border-color: var(--sb-bad); background: #FEF2F2; color: #991B1B; }
.sb-ww-empty { color: var(--sb-muted); font-size: 14px; font-style: italic; }

/* ====================== PROGRESS ====================== */
.sb-prog-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 22px; }
@media (max-width: 640px) { .sb-prog-stats { grid-template-columns: repeat(2, 1fr); } }
.sb-prog-card { background: var(--sb-card); border: 1px solid var(--sb-border); border-radius: var(--sb-r-lg); padding: 18px; box-shadow: var(--sb-shadow-sm); text-align: center; }
.sb-prog-card__num { font-family: var(--sb-font-en); font-size: 34px; font-weight: 800; line-height: 1; }
.sb-prog-card__lbl { font-family: var(--sb-font-bn-ui); font-size: 13px; color: var(--sb-muted); margin-top: 6px; }
.sb-prog-card--learn .sb-prog-card__num { color: var(--sb-info); }
.sb-prog-card--review .sb-prog-card__num { color: var(--sb-gold-600); }
.sb-prog-card--master .sb-prog-card__num { color: var(--sb-ok); }
.sb-prog-card--due .sb-prog-card__num { color: var(--sb-brand); }

.sb-mastery { background: var(--sb-card); border: 1px solid var(--sb-border); border-radius: var(--sb-r-lg); padding: 20px; box-shadow: var(--sb-shadow-sm); margin-bottom: 18px; }
.sb-mastery__head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 10px; }
.sb-mastery__head h3 { margin: 0; font-family: var(--sb-font-bn-ui); font-size: 16px; }
.sb-mastery__pct { font-family: var(--sb-font-en); font-weight: 800; font-size: 22px; color: var(--sb-ok); }
.sb-mastery__bar { height: 14px; border-radius: 999px; background: var(--sb-bg-2); overflow: hidden; }
.sb-mastery__bar span { display: block; height: 100%; border-radius: 999px; background: linear-gradient(90deg, #22C55E 0%, #16A34A 100%); transition: width .5s ease; }
.sb-mastery__note { font-size: 13px; color: var(--sb-muted); margin: 10px 0 0; }

/* Empty-state card */
.sb-empty-card { text-align: center; padding: 40px 22px; }
.sb-empty-card .sb-empty-ic { width: 64px; height: 64px; margin: 0 auto 14px; border-radius: 18px; background: var(--sb-brand-50); color: var(--sb-brand); display: flex; align-items: center; justify-content: center; }
.sb-empty-card h3 { font-family: var(--sb-font-bn-ui); margin: 0 0 6px; color: var(--sb-ink); }
.sb-empty-card p { color: var(--sb-muted); margin: 0 auto 16px; max-width: 40ch; }

/* Plugin-injected images inside vocab cards — hardened against theme img{} rules */
.sb-vocab img, .sb-wcard img, .sb-flash img { max-width: 100% !important; height: auto !important; }

/* Small screens */
@media (max-width: 520px) {
    .sb-flash-actions .sb-btn { font-size: 15px; padding: 13px; }
    .sb-wotd { padding: 22px 18px; }
}

/* ====================== AI TUTOR (explain + examples) ====================== */
.sb-ai { margin-top: 12px; }
.sb-ai--off .sb-ai-btn { display: none !important; }
/* gold "treasury" accent — distinct from the indigo listen button; hardened */
.sb-vocab .sb-ai-btn,
button.sb-ai-btn {
    display: inline-flex !important; align-items: center !important; justify-content: center !important;
    gap: 6px !important;
    width: auto !important; min-width: 0 !important; height: auto !important;
    padding: 8px 14px !important; margin: 0 !important;
    border-radius: 999px !important; border: 1px solid var(--sb-gold-100) !important;
    background: var(--sb-gold-50) !important; color: var(--sb-gold-600) !important;
    font-family: var(--sb-font-bn-ui) !important; font-size: 13px !important; font-weight: 600 !important;
    line-height: 1.25 !important; cursor: pointer !important; box-shadow: none !important;
    transition: background .15s, transform .12s;
}
.sb-vocab .sb-ai-btn:hover, button.sb-ai-btn:hover { background: var(--sb-gold-100) !important; transform: translateY(-1px); }
.sb-vocab .sb-ai-btn:disabled, button.sb-ai-btn:disabled { opacity: .6 !important; cursor: progress !important; transform: none !important; }
.sb-ai-box { display: none; margin-top: 10px; text-align: left; }
.sb-ai-box.is-open { display: block; animation: sb-ai-in .2s ease; }
@keyframes sb-ai-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
.sb-ai__sec { background: var(--sb-card); border: 1px solid var(--sb-border); border-radius: var(--sb-r); padding: 11px 14px; margin: 0 auto 8px; max-width: 560px; box-shadow: var(--sb-shadow-sm); }
.sb-ai__tag { display: inline-block; font-family: var(--sb-font-bn-ui); font-size: 11px; font-weight: 700; letter-spacing: .03em; color: var(--sb-gold-600); background: var(--sb-gold-50); padding: 2px 9px; border-radius: 999px; margin-bottom: 6px; }
.sb-ai__sec p { margin: 0; font-size: 14.5px; color: var(--sb-text); line-height: 1.65; }
.sb-ai__loading, .sb-ai__note { margin: 0; font-size: 13.5px; color: var(--sb-muted); font-style: italic; padding: 8px 2px; }
/* "AI is writing" thinking state + streaming reveal */
.sb-ai__sec { animation: sb-ai-in .3s ease; }
.sb-ai__thinking { display: inline-flex; align-items: center; gap: 9px; padding: 12px 16px; background: var(--sb-card); border: 1px solid var(--sb-border); border-radius: var(--sb-r); box-shadow: var(--sb-shadow-sm); color: var(--sb-gold-600); font-family: var(--sb-font-bn-ui); font-size: 13.5px; }
.sb-ai__thinking svg { width: 18px !important; height: 18px !important; color: var(--sb-gold); animation: sb-sparkle 1.3s ease-in-out infinite; }
.sb-ai__dots { display: inline-flex; gap: 4px; }
.sb-ai__dots i { width: 6px; height: 6px; border-radius: 50%; background: var(--sb-gold); animation: sb-bounce 1.2s infinite ease-in-out; }
.sb-ai__dots i:nth-child(2) { animation-delay: .15s; }
.sb-ai__dots i:nth-child(3) { animation-delay: .3s; }
@keyframes sb-bounce { 0%, 80%, 100% { transform: translateY(0); opacity: .45; } 40% { transform: translateY(-5px); opacity: 1; } }
.sb-ai__type.is-typing::after { content: '▋'; color: var(--sb-gold); margin-left: 1px; animation: sb-caret .85s step-end infinite; }
@keyframes sb-caret { 50% { opacity: 0; } }
.sb-ai-btn.is-thinking { opacity: .85; }
@media (prefers-reduced-motion: reduce) {
    .sb-ai__dots i, .sb-ai__thinking svg, .sb-ai__type.is-typing::after { animation: none !important; }
}

/* ====================== AI TUTOR CHAT ====================== */
.sb-tile--ai .sb-tile__ic { color: var(--sb-gold); }
.sb-tutor { display: flex; flex-direction: column; background: var(--sb-card); border: 1px solid var(--sb-border); border-radius: var(--sb-r-xl); box-shadow: var(--sb-shadow); overflow: hidden; margin-top: 16px; }
.sb-tutor__log { padding: 18px; height: 52vh; min-height: 320px; max-height: 560px; overflow-y: auto; display: flex; flex-direction: column; gap: 12px; background: var(--sb-bg); }
.sb-tb { display: flex; max-width: 88%; }
.sb-tb--user { align-self: flex-end; }
.sb-tb--ai { align-self: flex-start; }
.sb-tb__body { padding: 10px 14px; border-radius: 16px; font-size: 14.5px; line-height: 1.6; word-break: break-word; }
.sb-tb--user .sb-tb__body { background: var(--sb-brand); color: #fff; border-bottom-right-radius: 5px; }
.sb-tb--ai .sb-tb__body { background: #fff; color: var(--sb-text); border: 1px solid var(--sb-border); border-bottom-left-radius: 5px; box-shadow: var(--sb-shadow-sm); }
.sb-tb--ai .sb-ai__dots i { background: var(--sb-muted); }
.sb-tutor__suggest:not(:empty) { display: flex; flex-wrap: wrap; gap: 8px; padding: 12px 18px 0; }
.sb-vocab .sb-tutor__chip, button.sb-tutor__chip {
    background: var(--sb-gold-50) !important; color: var(--sb-gold-600) !important; border: 1px solid var(--sb-gold-100) !important;
    border-radius: 999px !important; padding: 7px 13px !important; margin: 0 !important; width: auto !important; height: auto !important; min-width: 0 !important;
    font-family: var(--sb-font-bn-ui) !important; font-size: 12.5px !important; font-weight: 600 !important; line-height: 1.3 !important; cursor: pointer !important; box-shadow: none !important;
}
.sb-vocab .sb-tutor__chip:hover, button.sb-tutor__chip:hover { background: var(--sb-gold-100) !important; }
.sb-tutor__note { font-size: 12.5px; color: var(--sb-warn); font-family: var(--sb-font-bn-ui); }
.sb-tutor__bar { display: flex; gap: 10px; padding: 14px 18px; border-top: 1px solid var(--sb-border); background: var(--sb-card); align-items: center; }
.sb-vocab .sb-tutor__input {
    flex: 1 1 auto !important; width: auto !important; min-width: 0 !important; height: auto !important; padding: 11px 16px !important; margin: 0 !important;
    border: 1.5px solid var(--sb-border) !important; border-radius: 999px !important;
    font-family: var(--sb-font-bn-text) !important; font-size: 14.5px !important; background: var(--sb-bg) !important; color: var(--sb-text) !important; outline: none !important; box-shadow: none !important;
}
.sb-vocab .sb-tutor__input:focus { border-color: var(--sb-brand) !important; box-shadow: var(--sb-ring) !important; }
.sb-vocab .sb-tutor__send, button.sb-tutor__send {
    flex: 0 0 auto !important; display: inline-flex !important; align-items: center !important; justify-content: center !important;
    width: 46px !important; height: 46px !important; min-width: 0 !important; padding: 0 !important; margin: 0 !important;
    border: none !important; border-radius: 50% !important; background: var(--sb-brand) !important; color: #fff !important; cursor: pointer !important; box-shadow: none !important;
}
.sb-vocab .sb-tutor__send:hover, button.sb-tutor__send:hover { background: var(--sb-brand-600) !important; transform: translateY(-1px); }
.sb-vocab .sb-tutor__send svg { width: 20px !important; height: 20px !important; }
@media (max-width: 600px) { .sb-tutor__log { height: 58vh; } .sb-tb { max-width: 92%; } }
/* Cloze (fill-in-the-blank) — the focus is a sentence, not a single word */
.sb-vq__focus--sentence { font-size: clamp(17px, 3.4vw, 23px) !important; line-height: 1.55 !important; font-weight: 600 !important; }
/* AI progress coach card (Progress screen) */
.sb-ai-insight { background: var(--sb-grad-soft); border: 1px solid var(--sb-brand-100); border-radius: var(--sb-r-lg); padding: 16px 18px; margin: 0 0 18px; }
.sb-ai-insight__head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.sb-ai-insight__head .sb-eyebrow { margin: 0; }

/* AI Tutor — multi-chat layout (thread sidebar + main pane) */
.sb-tutor--multi { flex-direction: row !important; align-items: stretch; min-height: 520px; position: relative; }
.sb-tutor__side { flex: 0 0 232px; width: 232px; display: flex; flex-direction: column; gap: 8px; padding: 12px; border-right: 1px solid var(--sb-border); background: var(--sb-bg); }
.sb-tutor__main { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }
.sb-tutor__topbar { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-bottom: 1px solid var(--sb-border); background: var(--sb-card); }
.sb-tutor__title { font-family: var(--sb-font-bn-ui); font-weight: 600; font-size: 15px; color: var(--sb-ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sb-tutor__main .sb-tutor__log { flex: 1 1 auto; height: auto; min-height: 300px; max-height: none; }
.sb-vocab .sb-tutor__new, button.sb-tutor__new {
    display: inline-flex !important; align-items: center !important; justify-content: center !important; gap: 6px !important;
    width: 100% !important; padding: 10px 12px !important; margin: 0 !important; border: 1px solid var(--sb-brand-100) !important; border-radius: var(--sb-r) !important;
    background: var(--sb-brand-50) !important; color: var(--sb-brand-700) !important; font-family: var(--sb-font-bn-ui) !important; font-size: 13.5px !important; font-weight: 600 !important; line-height: 1.2 !important; cursor: pointer !important; box-shadow: none !important;
}
.sb-vocab .sb-tutor__new:hover, button.sb-tutor__new:hover { background: var(--sb-brand-100) !important; }
.sb-vocab .sb-tutor__new svg { width: 16px !important; height: 16px !important; }
.sb-tutor__threads { flex: 1 1 auto; overflow-y: auto; display: flex; flex-direction: column; gap: 2px; }
.sb-tutor__thread { display: flex; align-items: center; gap: 6px; padding: 9px 10px; border-radius: var(--sb-r-sm); cursor: pointer; color: var(--sb-text); }
.sb-tutor__thread:hover { background: var(--sb-bg-2); }
.sb-tutor__thread.is-active { background: var(--sb-brand-50); }
.sb-tutor__thread-title { flex: 1 1 auto; min-width: 0; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sb-vocab .sb-tutor__thread-del, button.sb-tutor__thread-del {
    flex: 0 0 auto !important; width: 22px !important; height: 22px !important; min-width: 0 !important; padding: 0 !important; margin: 0 !important; border: none !important; border-radius: 50% !important;
    background: transparent !important; color: var(--sb-muted) !important; font-size: 17px !important; line-height: 1 !important; cursor: pointer !important; opacity: 0; box-shadow: none !important;
}
.sb-tutor__thread:hover .sb-tutor__thread-del, .sb-tutor__thread.is-active .sb-tutor__thread-del { opacity: 1; }
.sb-vocab .sb-tutor__thread-del:hover { background: var(--sb-bad-bg, #fef2f2) !important; color: var(--sb-bad) !important; }
.sb-tutor__empty { font-size: 12.5px; color: var(--sb-muted); padding: 10px; text-align: center; }
.sb-tutor__loading { display: flex; justify-content: center; padding: 20px; }
.sb-tutor__menu, .sb-tutor__overlay { display: none; }
@media (max-width: 720px) {
    .sb-tutor__side { position: absolute; z-index: 5; top: 0; bottom: 0; left: 0; width: 250px; flex-basis: 250px; transform: translateX(-105%); transition: transform .22s ease; box-shadow: var(--sb-shadow-md); }
    .sb-tutor--multi.is-side-open .sb-tutor__side { transform: translateX(0); }
    .sb-tutor--multi.is-side-open .sb-tutor__overlay { display: block; position: absolute; inset: 0; z-index: 4; background: rgba(15,18,30,.4); }
    .sb-vocab .sb-tutor__menu, button.sb-tutor__menu {
        display: inline-flex !important; align-items: center !important; justify-content: center !important; width: 36px !important; height: 36px !important; min-width: 0 !important; padding: 0 !important; margin: 0 !important;
        border: 1px solid var(--sb-border) !important; border-radius: var(--sb-r-sm) !important; background: var(--sb-bg) !important; color: var(--sb-ink) !important; cursor: pointer !important; box-shadow: none !important;
    }
    .sb-vocab .sb-tutor__menu svg { width: 20px !important; height: 20px !important; }
}

/* Inside the dark Word-of-the-Day gradient card → white button + readable text */
.sb-wotd .sb-ai-btn, .sb-wotd button.sb-ai-btn {
    background: rgba(255,255,255,.18) !important; color: #fff !important; border-color: rgba(255,255,255,.32) !important;
}
.sb-wotd .sb-ai-btn:hover, .sb-wotd button.sb-ai-btn:hover { background: rgba(255,255,255,.28) !important; }
.sb-wotd .sb-ai__loading, .sb-wotd .sb-ai__note { color: rgba(255,255,255,.9); }

/* Landing AI showcase (public trial) */
.sb-aishow__card { background: var(--sb-grad-soft); border: 1px solid var(--sb-brand-100); border-radius: var(--sb-r-xl); padding: 30px 26px; text-align: center; box-shadow: var(--sb-shadow); }
.sb-aishow__card h2 { font-family: var(--sb-font-bn-ui); font-size: clamp(22px, 4vw, 30px); color: var(--sb-ink); margin: 10px 0 6px; }
.sb-aishow__card > p { color: var(--sb-text); max-width: 60ch; margin: 0 auto 18px; }
.sb-ai--show { display: block; max-width: 600px; margin: 0 auto; }
.sb-aishow__cta { margin: 16px 0 0; }
/* premium sparkle icon — sized like the listen icon, gentle shimmer on the showcase */
.sb-vocab .sb-ai-btn svg, button.sb-ai-btn svg { width: 16px !important; height: 16px !important; flex: 0 0 auto; }
.sb-ai--show .sb-ai-btn svg { animation: sb-sparkle 2.6s ease-in-out infinite; transform-origin: center; }
@keyframes sb-sparkle { 0%, 100% { opacity: 1; transform: scale(1) rotate(0deg); } 50% { opacity: .7; transform: scale(1.14) rotate(10deg); } }
@media (prefers-reduced-motion: reduce) { .sb-ai--show .sb-ai-btn svg { animation: none; } }