/* ---------- Header ---------- */

.site-header {
    background: rgba(248, 249, 250, 0.92);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    position: sticky;
    top: 0;
    z-index: 45;
    border-bottom: 1px solid transparent;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.site-header--scrolled {
    border-bottom-color: var(--border);
    box-shadow: var(--shadow-sm);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: 12px 20px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.4rem;
    color: var(--text-heading);
    text-decoration: none;
    flex: none;
}

.brand:hover { text-decoration: none; }

.brand .brand-name { color: var(--primary); }

.brand-logo {
    width: 42px;
    height: 42px;
    object-fit: contain;
    flex: none;
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--space-1);
    margin: 0;
    padding: 0;
}

.nav-links li { display: flex; align-items: center; }

.nav-links a {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: var(--tap);
    color: var(--text-body);
    font-weight: 600;
    font-size: 0.94rem;
    text-decoration: none;
    padding: 0 14px;
    border-radius: var(--radius-sm);
    transition: color 0.15s ease, background-color 0.15s ease;
}

@media (hover: hover) and (pointer: fine) {
    .nav-links a:hover { color: var(--primary); background: var(--bg-surface-alt); text-decoration: none; }
}

.nav-links a.active:not(.btn-nav) {
    color: var(--primary);
}

.nav-links a.active:not(.btn-nav)::after {
    content: '';
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 4px;
    height: 2px;
    border-radius: var(--radius-full);
    background: var(--primary);
}

.btn-nav {
    background: var(--primary-gradient) !important;
    color: var(--on-primary) !important;
    padding: 0 20px;
    border-radius: var(--radius-sm);
    border: none;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    height: 44px;
    box-sizing: border-box;
    box-shadow: 0 4px 12px rgba(93, 62, 188, 0.24);
    margin-left: 6px;
}

@media (hover: hover) and (pointer: fine) {
    .btn-nav:hover { background: var(--primary-gradient) !important; color: var(--on-primary) !important; }
}

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    padding: 4px 10px;
    min-width: var(--tap);
    min-height: var(--tap);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-heading);
    touch-action: manipulation;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.nav-toggle[aria-expanded="true"] { background: var(--bg-surface-alt); border-color: var(--primary); color: var(--primary); }

.nav-backdrop { display: none; }

/* View Details CTA */
.view-details-btn {
    background: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
    color: #FFFFFF;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.25);
    transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
@media (hover: hover) and (pointer: fine) {
    .view-details-btn:hover {
        background: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%);
        color: #FFFFFF;
        transform: translateY(-2px);
        box-shadow: 0 12px 30px rgba(59, 130, 246, 0.35);
    }
}
.view-details-btn:active { background: #1D4ED8; transform: translateY(0); }
.view-details-btn:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25); }
.view-details-btn:disabled,
.view-details-btn.disabled { background: #93C5FD; color: #FFFFFF; cursor: not-allowed; box-shadow: none; transform: none; }

/* ---------- Hero ---------- */

.hero {
    position: relative;
    overflow: hidden;
    padding: var(--space-6) 0 var(--space-5);
    text-align: center;
    isolation: isolate;
}

.hero::before,
.hero::after {
    content: '';
    position: absolute;
    z-index: -1;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.35;
    pointer-events: none;
}

.hero::before {
    width: 420px;
    height: 420px;
    top: -220px;
    left: 50%;
    transform: translateX(-70%);
    background: var(--primary-light);
}

.hero::after {
    width: 320px;
    height: 320px;
    top: -140px;
    right: 50%;
    transform: translateX(60%);
    background: var(--accent-alt);
    opacity: 0.22;
}

.hero__inner { max-width: 760px; }

.hero__eyebrow {
    display: inline-flex;
    align-items: center;
    background: var(--bg-surface-alt);
    color: var(--primary);
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 0.01em;
    padding: 7px 16px;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-2);
}

.hero__title {
    font-size: clamp(1.8rem, 5.5vw + 0.5rem, 2.9rem);
    margin-bottom: var(--space-2);
}

.hero__subtitle {
    max-width: 620px;
    margin: 0 auto var(--space-4);
    color: var(--text-body);
    font-size: clamp(0.98rem, 1.5vw + 0.7rem, 1.15rem);
}

.hero__ctas {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    flex-wrap: wrap;
    margin-bottom: var(--space-5);
}

.hero__trust {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-1) var(--space-4);
    margin: 0;
    padding: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.hero__trust strong {
    font-family: var(--font-display);
    color: var(--text-heading);
    font-weight: 800;
    margin-right: 4px;
}

@media (min-width: 640px) {
    .hero { padding: var(--space-8) 0 var(--space-6); }
}

@media (max-width: 480px) {
    .hero__ctas { flex-direction: column; align-items: stretch; }
    .hero__ctas .btn { width: 100%; }
}

.exam-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin: 24px 0 48px;
}

@media (min-width: 600px) {
    .exam-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}

@media (min-width: 900px) {
    .exam-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; margin: 32px 0 64px; }
}

.mode-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin: 20px 0 32px;
}

.exam-grid .card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    content-visibility: auto;
    contain-intrinsic-size: 1px 220px;
}

.exam-card__header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    gap: 6px 10px;
    margin-bottom: 12px;
}

.exam-card__header h3 {
    font-size: 1.3rem;
    line-height: 1.25;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.5em;
    min-width: 0;
    flex: 1 1 160px;
}

.exam-card__code {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    background: var(--primary-solid);
    color: var(--on-primary);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    flex: none;
    align-self: flex-start;
}

.exam-card__desc {
    font-size: 0.95rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 3em;
}

.exam-card__meta {
    display: flex;
    gap: 16px;
    font-family: var(--font-body);
    font-size: 0.88rem;
    color: var(--text-muted);
    margin: 12px 0;
    flex-wrap: wrap;
}

.exam-grid .btn {
    font-size: 1.05rem;
    padding: 13px 24px;
    margin-top: auto;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 12px 0 20px;
    min-height: 32px;
    max-height: 32px;
    overflow: hidden;
}

/* ---------- Content listing cards (current affairs, blog) ---------- */

.jump-links { font-size: 0.9rem; }

.content-list { display: grid; gap: var(--space-3); margin: var(--space-3) 0; }

.content-card__image {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    max-height: 260px;
    object-fit: cover;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
}
.content-card__image--hero { max-height: 420px; margin-bottom: var(--space-3); }

.content-card__meta { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.content-card__title { margin: 0 0 8px; font-size: 1.2rem; line-height: 1.35; }
.content-card__excerpt { margin: 0 0 10px; }
.content-card__more { font-weight: 700; font-size: 0.9rem; }

/* ---------- Article reading view (blog / current affairs single post) ---------- */

.article-head { margin-bottom: var(--space-3); }
.article-head .content-card__meta { margin-bottom: var(--space-2); }

.article-body {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--text-body);
    overflow-wrap: break-word;
    max-width: 68ch;
}

/* ---------- Subjects listing ---------- */

.subjects-title { margin: var(--space-3) 0 8px; }
.subjects-search { justify-content: center; margin: var(--space-3) 0; }
.subjects-search__field { min-width: 280px; }
.subject-card__note { font-size: 0.85rem; margin: 6px 0 12px; }

/* ---------- Empty states ---------- */

.empty-state {
    text-align: center;
    padding: var(--space-6) var(--space-3);
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius);
    background: var(--bg-surface-alt);
    margin: var(--space-2) 0 var(--space-4);
}

.empty-state__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--bg-surface);
    color: var(--text-muted);
    margin-bottom: var(--space-2);
}
.empty-state__icon svg { width: 26px; height: 26px; }
.empty-state p { margin: 0 0 var(--space-2); color: var(--text-muted); }
.empty-state .btn { margin-top: 4px; }

/* ---------- Dashboard ---------- */

.dashboard-welcome { margin-bottom: var(--space-2); }
.dashboard-welcome p { margin: 0; }

/* ---------- Exam detail page ---------- */

.exam-detail-head {
    padding: var(--space-2) 0 var(--space-3);
    border-bottom: 1px solid var(--border);
    margin-bottom: var(--space-4);
}
.exam-detail-head h1 { margin-top: 10px; }

.exam-detail-cta { margin: var(--space-5) 0; }

.exam-detail-cta__single { max-width: 360px; margin: 0 auto; text-align: center; }
.exam-detail-cta__single .medium-picker { justify-content: center; }

.exam-detail-cta__guest {
    display: flex;
    gap: var(--space-2);
    justify-content: center;
    flex-wrap: wrap;
}

.exam-detail-section { margin-bottom: var(--space-4); }
.exam-detail-section h2 { font-size: 1.15rem; }

.mode-card { text-align: center; padding: var(--space-4) var(--space-3); }

.mode-card__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: var(--radius);
    background: var(--bg-surface-alt);
    color: var(--primary);
    margin-bottom: var(--space-2);
}
.mode-card__icon svg { width: 26px; height: 26px; }
.mode-card__icon--alt { color: var(--accent); }
.mode-card__meta { margin: 4px 0 var(--space-2); }
.mode-card .medium-picker { justify-content: center; }

.icon-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.icon-list li { display: flex; gap: 12px; align-items: flex-start; color: var(--text-body); line-height: 1.55; }
.icon-list__icon {
    flex: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--bg-surface-alt);
    color: var(--success);
    font-weight: 800;
    font-size: 0.78rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 1px;
}

/* ---------- Medium picker (exam language choice) ---------- */

.medium-picker {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin: 0 0 16px;
    border: 0;
    padding: 0;
}

.medium-option {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: var(--tap);
    padding: 10px 18px;
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.92rem;
    cursor: pointer;
    color: var(--text-heading);
}

.medium-option input { width: 18px; height: 18px; accent-color: var(--primary-solid); }

.medium-option:has(input:checked) {
    background: var(--bg-surface-alt);
    border-color: var(--primary);
    color: var(--primary);
}

/* ---------- Pill search bar ---------- */

.search-pill {
    display: flex;
    align-items: center;
    gap: 4px;
    max-width: 480px;
    margin: 24px auto;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 4px;
    box-shadow: var(--shadow);
}

.search-pill .form-control {
    border: none;
    background: transparent;
    box-shadow: none;
    flex: 1;
    min-width: 0;
}

.search-pill .form-control:focus { box-shadow: none; outline: none; }

.search-pill__btn {
    flex: none;
    width: var(--tap);
    min-height: var(--tap);
    padding: 0;
    border-radius: 50%;
}

.search-pill__btn svg { width: 20px; height: 20px; }

/* ---------- Section headings ---------- */

.section-title {
    text-align: center;
    margin: 40px 0 8px;
    font-size: clamp(1.3rem, 3vw + 0.6rem, 1.7rem);
}

.btn-google {
    background: var(--bg-surface);
    color: var(--text-heading);
    border: 1px solid var(--border-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.google-icon { width: 18px; height: 18px; flex: none; }

.auth-divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 20px 0;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border);
}

.auth-divider span { padding: 0 12px; }

/* ---------- Homepage teaser rows (Popular Exams / Today / Current Affairs / PYQ) ---------- */

.section-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin: 40px 0 16px;
}

.section-header h2 { margin: 0; text-align: left; }
.section-header a { font-size: 0.9rem; font-weight: 600; white-space: nowrap; flex: none; }

.teaser-row {
    display: flex;
    gap: 14px;
    margin: 0 0 8px;
    padding: 4px 4px 14px;
    overflow-x: auto;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-x;
}

.teaser-card {
    flex: 0 0 auto;
    width: 82vw;
    max-width: 300px;
    scroll-snap-align: start;
    content-visibility: auto;
    contain-intrinsic-size: 1px 220px;
}

@media (min-width: 720px) {
    .teaser-row { display: grid; grid-template-columns: repeat(3, 1fr); overflow: visible; padding-bottom: 0; }
    .teaser-card { width: auto; max-width: none; }
}

.mini-card__title { margin: 0 0 8px; font-size: 1.05rem; line-height: 1.35; }
.teaser-date { font-size: 0.82rem; }

.continue-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    padding: 18px 20px;
    margin: 20px 0 0;
}

.continue-card__label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--primary);
    margin-bottom: 4px;
    display: block;
}

.continue-card h3 { margin: 0; }
.continue-card .btn { flex: none; }

@media (max-width: 480px) {
    .continue-card { flex-direction: column; align-items: stretch; text-align: center; }
    .continue-card .btn { width: 100%; }
}

/* ---------- Testimonials ---------- */

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin: 24px 0 48px;
}

.testimonial-quote {
    font-family: 'Noto Sans Bengali', var(--font-body);
    font-size: 0.98rem;
    color: var(--text-body);
    line-height: 1.6;
}

.testimonial-quote::before { content: '\201C'; }
.testimonial-quote::after { content: '\201D'; }

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.testimonial-name {
    font-weight: 700;
    color: var(--text-heading);
}


/* ==========================================================================
   Result page
   ========================================================================== */

.result-hero {
    position: relative;
    overflow: hidden;
    isolation: isolate;
    text-align: center;
    padding: var(--space-6) 0 var(--space-5);
    border-bottom: 1px solid var(--border);
    background: var(--bg-surface-alt);
}

.result-hero::before {
    content: '';
    position: absolute;
    z-index: -1;
    width: 380px;
    height: 380px;
    top: -230px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 50%;
    background: var(--primary-light);
    filter: blur(70px);
    opacity: 0.3;
}

.result-score {
    font-family: var(--font-mono);
    font-size: 3.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--primary);
}

.result-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin: var(--space-5) 0 var(--space-6);
}

@media (max-width: 480px) {
    .result-cta { flex-direction: column; align-items: stretch; }
    .result-cta .btn { width: 100%; }
}

.subject-breakdown-row {
    display: grid;
    grid-template-columns: 1fr 100px 100px 100px 100px;
    gap: 8px;
    align-items: center;
}

.review-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    margin-bottom: 16px;
    background: var(--bg-surface);
}

.review-item.correct { border-left: 6px solid var(--success); }
.review-item.wrong { border-left: 6px solid var(--error); }
.review-item.skipped { border-left: 6px solid var(--text-muted); }

/* Subject-wise breakdown: table on wider screens, card-per-row on phones */

.subject-breakdown-cards { display: none; }

.breakdown-card { margin-bottom: 12px; padding: 16px 18px; }

.breakdown-card__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-top: 10px;
    text-align: center;
}

.breakdown-card__grid > div { display: flex; flex-direction: column; gap: 2px; }
.breakdown-card__grid span { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--text-muted); }
.breakdown-card__grid strong { font-size: 1.05rem; }

@media (max-width: 480px) {
    .subject-breakdown-table { display: none; }
    .subject-breakdown-cards { display: block; }
}

@media (max-width: 400px) {
    .breakdown-card__grid { grid-template-columns: repeat(2, 1fr); gap: 10px 8px; }
}

/* ==========================================================================
   Premium footer — Mocksky
   Deliberately its own always-dark theme, scoped under .mocksky-footer so it
   doesn't need to flip between light/dark with the rest of the page.
   ========================================================================== */

.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.mocksky-footer {
    --f-primary: #7C5CFF;
    --f-secondary: #E7DEFF;
    --f-bg: #171717;
    --f-card: #1F1F1F;
    --f-card-hover: #272727;
    --f-text: #FFFFFF;
    --f-text-secondary: #B5B5B5;
    --f-accent: #10B981;
    --f-hover: #00E5FF;
    --f-divider: #2A2A2A;
    --f-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    position: relative;
    margin-top: 64px;
    background: var(--f-bg);
    color: var(--f-text);
    font-family: var(--f-font);
    overflow: hidden;
    animation: mfFadeIn 0.6s ease-out;
}

.mocksky-footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--f-primary), transparent);
    box-shadow: 0 0 24px 2px var(--f-primary);
}

@keyframes mfFadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
    .mocksky-footer { animation: none; }
}

.mf-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 25px;
}

.mf-top {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr 1fr;
    gap: 40px;
    padding: 70px 25px 48px;
    max-width: 1200px;
    margin: 0 auto;
}

.mf-col-heading {
    font-family: var(--f-font);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--f-text);
    margin: 0 0 18px;
}

.mf-col--brand .mf-col-heading { margin-top: 8px; }

.mf-desc {
    color: var(--f-text-secondary);
    font-size: 0.95rem;
    line-height: 1.65;
    max-width: 70%;
    margin: 0 0 12px;
}

.mf-badges {
    list-style: none;
    margin: 20px 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mf-badges li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--f-text-secondary);
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.mf-badges li:hover {
    color: var(--f-text);
}

.mf-badges svg {
    flex: none;
    width: 16px;
    height: 16px;
    color: #34D399;
}

.mf-links, .mf-exam-links, .mf-social {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mf-links a {
    color: var(--f-text-secondary);
    font-size: 0.95rem;
    text-decoration: none;
    transition: color 0.2s ease, transform 0.2s ease;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
}

.mf-exam-links a {
    color: var(--f-text-secondary);
    font-size: 0.95rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    gap: 6px;
    transition: color 0.2s ease, transform 0.2s ease;
}

@media (hover: hover) and (pointer: fine) {
    .mf-links a:hover {
        color: var(--f-hover);
        text-decoration: none;
        transform: translateX(4px);
    }
    .mf-exam-links a:hover {
        color: var(--f-hover);
        text-decoration: none;
        transform: translateX(4px);
    }
}

.mf-exam-links svg {
    width: 14px;
    height: 14px;
    flex: none;
    color: var(--f-accent);
}

.mf-social a {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-height: 44px;
    color: var(--f-text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.mf-social a:hover { color: var(--f-text); text-decoration: none; }

.mf-social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    flex: none;
    background: var(--f-card);
    border-radius: 16px;
    color: var(--f-text-secondary);
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

@media (hover: hover) and (pointer: fine) {
    .mf-social a:hover .mf-social-icon {
        background: var(--f-card-hover);
        color: var(--f-hover);
        transform: translateY(-2px);
    }
}

.mf-social-icon svg { width: 18px; height: 18px; }

.mf-connect-note {
    color: var(--f-text-secondary);
    font-size: 0.88rem;
    line-height: 1.6;
    max-width: 70%;
    margin: 20px 0 0;
}

/* ---------- Newsletter ---------- */

.mf-newsletter {
    border-bottom: 1px solid var(--f-divider);
    padding: 48px 0;
}

.mf-newsletter-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
}

.mf-newsletter-copy { max-width: 70%; }
.mf-newsletter-copy .mf-desc { max-width: 100%; margin: 0; }

.mf-newsletter-form {
    display: flex;
    gap: 12px;
    flex: none;
    width: 100%;
    max-width: 440px;
}

.mf-newsletter-input {
    flex: 1;
    min-height: var(--tap);
    padding: 13px 18px;
    border-radius: 16px;
    border: 1px solid #4a4a4a;
    background: var(--f-card);
    color: var(--f-text);
    font-family: var(--f-font);
    font-size: 0.92rem;
}

.mf-newsletter-input::placeholder { color: var(--f-text-secondary); }

.mf-newsletter-input:focus {
    outline: none;
    border-color: var(--f-primary);
}

.mf-newsletter-btn {
    flex: none;
    min-height: var(--tap);
    padding: 13px 26px;
    border-radius: 16px;
    border: none;
    background: var(--f-primary);
    color: #fff;
    font-family: var(--f-font);
    font-weight: 600;
    font-size: 0.92rem;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.15s ease;
}

@media (hover: hover) and (pointer: fine) {
    .mf-newsletter-btn:hover { background: var(--f-hover); color: var(--f-bg); transform: translateY(-1px); }
}

.mf-trusted-line {
    max-width: 1200px;
    margin: 24px auto 0;
    padding: 0 25px;
    color: var(--f-text-secondary);
    font-size: 0.82rem;
    font-style: italic;
}

/* ---------- Legal + bottom bar ---------- */

.mf-divider {
    height: 1px;
    background: var(--f-divider);
    margin: 0 0 24px;
}

.mf-legal {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 20px;
    padding-bottom: 32px;
}

.mf-legal a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    color: var(--f-text-secondary);
    font-size: 0.82rem;
    text-decoration: none;
    transition: color 0.2s ease;
}

.mf-legal a:hover { color: var(--f-hover); text-decoration: none; }

.mf-bottom {
    background: #121212;
    border-top: 1px solid var(--f-divider);
}

.mf-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    padding: 20px 25px;
    color: var(--f-text-secondary);
    font-size: 0.82rem;
}

.mf-bottom-inner p { margin: 0; }

/* ---------- Back to top ---------- */

.back-to-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: var(--tap);
    height: var(--tap);
    border-radius: 16px;
    border: none;
    background: #7C5CFF;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.2s ease, transform 0.2s ease, background 0.2s ease, visibility 0.2s ease;
    z-index: 50;
}

.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

@media (hover: hover) and (pointer: fine) {
    .back-to-top:hover { background: #00E5FF; color: #10160A; }
}

.back-to-top svg { width: 20px; height: 20px; }

@media (max-width: 980px) {
    .mf-top { grid-template-columns: repeat(2, 1fr); padding: 40px 25px 32px; }
    .mf-desc, .mf-connect-note, .mf-newsletter-copy { max-width: 100%; }
}

@media (max-width: 620px) {
    .mf-top { grid-template-columns: 1fr; padding: 25px 20px; text-align: center; gap: 32px; }
    .mf-col-heading { margin-top: 4px; }
    .mf-badges li { justify-content: center; }
    .mf-links, .mf-exam-links, .mf-social { align-items: center; }
    .mf-newsletter-inner { flex-direction: column; text-align: center; }
    .mf-newsletter-form { flex-direction: column; max-width: 100%; }
    .mf-newsletter-btn { width: 100%; }
    .mf-legal { justify-content: center; padding: 0 20px 32px; }
    .mf-bottom-inner { flex-direction: column; text-align: center; padding: 20px; }
    .mf-trusted-line { text-align: center; }
}

/* ---------- Mobile bottom tab bar ---------- */

.mobile-tabbar { display: none; }

@media (max-width: 767px) {
    :root { --tabbar-h: 60px; }

    body.has-tabbar { padding-bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom)); }
    body.nav-open { overflow: hidden; }

    .mobile-tabbar {
        display: flex;
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 40;
        background: var(--bg-surface);
        border-top: 1px solid var(--border);
        padding-bottom: env(safe-area-inset-bottom);
        box-shadow: 0 -2px 16px rgba(0, 0, 0, 0.08);
    }

    .mobile-tabbar__item {
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 3px;
        min-height: 60px;
        padding: 6px 2px;
        color: var(--text-muted);
        font-size: 0.68rem;
        font-weight: 600;
        line-height: 1.15;
        text-decoration: none;
        background: none;
        border: none;
        cursor: pointer;
        font-family: var(--font-body);
        touch-action: manipulation;
    }

    .mobile-tabbar__item svg { width: 22px; height: 22px; }
    .mobile-tabbar__item.active { color: var(--primary); }

    .back-to-top {
        right: 16px;
        bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 16px);
        z-index: 41;
    }

    /* Menu occupies the same corner of the screen while open — keep it out of the way. */
    body.nav-open .back-to-top { opacity: 0; visibility: hidden; pointer-events: none; }
}

@media (max-width: 359px) {
    .mobile-tabbar__item { font-size: 0.6rem; letter-spacing: -0.01em; padding: 6px 1px; }
}

@media (max-width: 899px) {
    .nav-toggle { display: flex; }
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        background: var(--bg-surface);
        box-shadow: var(--shadow-lg);
        flex-direction: column;
        align-items: stretch;
        padding: calc(16px + env(safe-area-inset-top)) 16px 16px;
        border-bottom: 1px solid var(--border);
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        gap: 4px;
        z-index: 46;
        max-height: 85vh;
        overflow-y: auto;
        scroll-behavior: smooth;
    }
    .nav-links.open { display: flex; }
    .nav-links a {
        display: flex;
        align-items: center;
        min-height: var(--tap);
        padding: 8px 14px;
        border-left: 3px solid transparent;
        border-radius: var(--radius-sm);
    }
    .nav-links a.active:not(.btn-nav) {
        background: var(--bg-surface-alt);
        border-left-color: var(--primary);
    }
    .nav-links a.active:not(.btn-nav)::after { content: none; }
    .navbar { position: relative; }
    .nav-links .btn-nav { text-align: center; justify-content: center; margin: 8px 0 0; }

    .nav-backdrop {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 44;
    }
    .nav-backdrop.open { display: block; }

    .site-header { padding-top: env(safe-area-inset-top); }
}

@media (max-width: 767px) {
    .subject-breakdown-row { grid-template-columns: 1fr 1fr 1fr; font-size: 0.85rem; }
}

@media (max-width: 600px) {
    .navbar { padding: 10px 16px; }
    .brand { font-size: 1.2rem; }
    .brand-logo { width: 34px; height: 34px; }

    .exam-card__meta { gap: 10px; font-size: 0.8rem; }
    .exam-card__header h3 { font-size: 1.1rem; }
    .exam-card__code { font-size: 0.72rem; padding: 3px 8px; }
    .exam-card__desc { font-size: 0.88rem; }

    .result-hero { padding: 28px 0; }
    .result-score { font-size: 2.4rem; }
    .review-item { padding: 14px; }
}

@media (max-width: 380px) {
    .brand { font-size: 1.05rem; }
    .brand-logo { width: 30px; height: 30px; }
}