:root {
    --navy: #12163a;
    --blue: #1d4ed8;
    --yellow: #F6E936;
    --ink: #16181d;
    --muted: #5c6570;
    --line: #cfd4e0;
    --bg: #d9deea;
    --white: #ffffff;
    --green: #157a3a;
    --red: #b42318;
    --shadow: 0 1px 2px rgba(18, 22, 58, 0.06), 0 10px 28px rgba(18, 22, 58, 0.08);
    --radius: 12px;
    --max: 1120px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body.public-body {
    background:
        radial-gradient(ellipse 90% 50% at 50% 0%, #e4e8f3 0%, transparent 55%),
        var(--bg);
    color: var(--ink);
    font-family: Manrope, "Segoe UI", system-ui, sans-serif;
    min-height: 100vh;
    line-height: 1.5;
}
a { color: var(--blue); }

.public-nav {
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 50;
    border-bottom: 1px solid var(--line);
}
.public-nav .nav-inner {
    max-width: var(--max);
    margin: 0 auto;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    position: relative;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--ink);
}
.brand img {
    height: 38px;
    width: auto;
    background: var(--yellow);
    border-radius: 6px;
    padding: 4px 8px;
}
.brand-copy { display: flex; flex-direction: column; line-height: 1.15; }
.brand-copy strong { font-size: 14px; }
.brand-copy small { font-size: 11px; color: var(--muted); font-weight: 600; }
.nav-toggle {
    display: none;
    background: #fff;
    border: 1px solid var(--line);
    color: var(--ink);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    cursor: pointer;
}
.nav-links { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.nav-links a {
    color: #3d4654;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    padding: 8px 12px;
    border-radius: 8px;
}
.nav-links a:hover { color: var(--ink); background: #f4f5f8; }
.nav-links a.active { color: var(--navy); background: #f4f5f8; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 0;
    cursor: pointer;
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
    border-radius: 8px;
    padding: 10px 16px;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn-yellow { background: var(--yellow); color: #111; }
.btn-yellow:hover { background: #efe22a; color: #111; }
.btn-blue { background: var(--navy); color: #fff; }
.btn-blue:hover { background: #0d1130; color: #fff; }
.btn-dark { background: var(--navy); color: #fff; }
.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { background: #f4f5f8; color: var(--navy); }
.btn-outline {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255,255,255,0.35);
}
.btn-outline:hover { background: rgba(255,255,255,0.08); color: #fff; }
.btn-ghost { background: #fff; color: var(--navy); border: 1px solid var(--line); }
.btn-ghost:hover { background: #f4f5f8; color: var(--navy); }
.btn-danger { background: var(--red); color: #fff; }

.hero {
    background: var(--navy);
    color: #fff;
    padding: 64px 24px 56px;
}
.hero-inner, .section-inner { max-width: var(--max); margin: 0 auto; }
.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
    align-items: center;
}
.eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    color: var(--yellow);
    margin-bottom: 12px;
    letter-spacing: 0.02em;
}
.hero h1 {
    font-size: 42px;
    line-height: 1.15;
    margin: 0 0 14px;
    font-weight: 800;
    letter-spacing: -0.025em;
}
.hero p { font-size: 17px; color: #c9d0e3; max-width: 540px; margin: 0 0 24px; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.hero-points {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    margin-top: 22px;
    font-size: 13px;
    color: #b8c0d6;
}
.hero-points span { display: flex; align-items: center; gap: 7px; }
.hero-points i { color: var(--yellow); }
.hero-card {
    background: #fff;
    color: var(--ink);
    border-radius: var(--radius);
    padding: 24px;
}
.hero-card h3 {
    margin: 0 0 14px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
}
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.stat-pill {
    background: #f4f5f8;
    border-radius: 10px;
    padding: 14px 8px;
    text-align: center;
}
.stat-pill b { display: block; font-size: 22px; color: var(--navy); }
.stat-pill span { font-size: 12px; color: var(--muted); }
.exam-notes { margin-top: 14px; display: grid; gap: 0; font-size: 13px; color: #3d4654; }
.exam-notes div {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 0;
    border-top: 1px solid var(--line);
}

.trust-bar {
    background: #1c2248;
    border-bottom: 0;
}
.trust-bar .section-inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    padding: 14px 24px;
    font-size: 13px;
    color: #c5cce0;
    font-weight: 600;
}
.trust-bar i { color: var(--yellow); margin-right: 8px; }

.section { padding: 64px 24px; }
.section-muted {
    background: #cfd5e4;
    border-top: 1px solid #c0c7d8;
    border-bottom: 1px solid #c0c7d8;
}
.section-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 16px;
    margin-bottom: 28px;
}
.section-head h2 { margin: 0 0 6px; font-size: 26px; letter-spacing: -0.02em; }
.section-head p { margin: 0; color: var(--muted); font-size: 15px; }

.exam-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.exam-card {
    display: block;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px;
    text-decoration: none;
    color: var(--ink);
    min-height: 148px;
    box-shadow: var(--shadow);
}
.exam-card:hover { border-color: #c9ced8; color: var(--ink); }
.exam-card.theory { border-left: 4px solid var(--blue); }
.exam-card.life { border-left: 4px solid var(--yellow); }
.exam-card i { font-size: 20px; color: var(--navy); margin-bottom: 12px; display: block; }
.exam-card h3 { margin: 0 0 6px; font-size: 20px; color: var(--ink); }
.exam-card p { margin: 0; color: var(--muted); font-size: 14px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cards-4 { grid-template-columns: repeat(4, 1fr); }
.card {
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--line);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.card-hover:hover { border-color: #c9ced8; }
.card-body { padding: 20px; }
.cat-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: #eef0f6;
    color: var(--navy);
    display: grid;
    place-items: center;
    font-size: 16px;
    margin-bottom: 14px;
}
.card h3 { margin: 8px 0 8px; font-size: 17px; line-height: 1.3; }
.card-label {
    margin: 0 0 8px;
    font-size: 12px;
    font-weight: 700;
    color: var(--muted);
}
.meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    color: var(--muted);
    font-size: 13px;
    margin-bottom: 16px;
}
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 700;
}
.badge-free { background: #eef6f0; color: #157a3a; }
.badge-lock { background: #ece7f5; color: #4c1d95; }
.lock-panel {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    box-shadow: var(--shadow);
    margin: 8px 0 16px;
}
.lock-panel i { font-size: 22px; color: var(--navy); margin-bottom: 8px; }
.lock-panel h3 { margin: 0 0 8px; }
.lock-panel p { margin: 0 0 16px; color: var(--muted); }
.badge-pass { background: #eef6f0; color: #157a3a; }
.badge-fail { background: #fdeeee; color: #b42318; }
.badge-exam { background: #eef0f6; color: var(--navy); }
.badge-practice { background: #fff8d6; color: #6b5a00; }

.how { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}
.step b {
    display: inline-block;
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 8px;
}
.step h3 { margin: 0 0 8px; font-size: 18px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }

.public-footer { background: var(--navy); color: #b8c0d6; padding: 44px 24px 18px; margin-top: 0; }
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 32px;
    max-width: var(--max);
    margin: 0 auto 28px;
}
.public-footer h4 { color: #fff; margin: 0 0 12px; font-size: 13px; letter-spacing: 0.04em; text-transform: uppercase; }
.public-footer a { color: #b8c0d6; text-decoration: none; display: block; font-size: 14px; margin-bottom: 8px; }
.public-footer a:hover { color: #fff; }
.footer-bottom {
    max-width: var(--max);
    margin: 0 auto;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 16px;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 12px;
}

.page-head {
    background: #cfd5e4;
    border-bottom: 1px solid #c0c7d8;
    padding: 28px 24px;
}
.page-head .section-inner { max-width: var(--max); }
.page-head h1 { margin: 0 0 6px; font-size: 28px; letter-spacing: -0.02em; }
.page-head p { margin: 0; color: var(--muted); max-width: 640px; }
.page-wrap { max-width: var(--max); margin: 0 auto; padding: 28px 24px 56px; }
.legal-copy {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px 32px;
    max-width: 760px;
}
.legal-copy h2 {
    font-size: 18px;
    margin: 24px 0 8px;
    letter-spacing: -0.02em;
}
.legal-copy h2:first-child { margin-top: 0; }
.legal-copy p, .legal-copy li {
    color: var(--muted);
    font-size: 15px;
    line-height: 1.65;
}
.legal-copy p { margin: 0 0 12px; }
.legal-copy ul { margin: 0 0 12px; padding-left: 18px; }
.legal-copy label {
    font-size: 13px;
    margin-bottom: 6px;
    display: block;
    font-weight: 600;
    color: var(--ink);
}
.legal-copy textarea {
    width: 100%;
    min-height: 110px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px 12px;
    margin-bottom: 12px;
    font: inherit;
    resize: vertical;
    background: #fff;
}
.legal-copy .field-row input {
    width: 100%;
    height: 44px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 0 12px;
    margin-bottom: 12px;
    background: #fff;
}
.admin-email-box {
    background: #f4f6fb;
    border-radius: 10px;
    padding: 14px 16px;
    margin: 12px 0 16px;
}
.admin-email-box strong { display: block; font-size: 16px; word-break: break-all; }
.alert-ok { background: #eef6f0; color: #157a3a; padding: 10px 12px; border-radius: 8px; font-size: 13px; margin-bottom: 12px; }
.page-title { margin-bottom: 20px; }
.page-title h1 { margin: 0 0 6px; font-size: 28px; }
.page-title p { margin: 0; color: var(--muted); }

.test-table, .auth-card, .result-card, .quiz-shell {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}
.test-table { width: 100%; border-collapse: collapse; overflow: hidden; }
.test-table th, .test-table td { padding: 12px 14px; border-bottom: 1px solid var(--line); text-align: left; font-size: 13px; }
.test-table th { background: #f8f9fb; font-weight: 700; }

.filter-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    background: #fff;
    padding: 12px;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}
.filter-bar input, .filter-bar select {
    height: 42px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 0 12px;
    background: #fff;
}

.auth-grid {
    min-height: 68vh;
    display: grid;
    place-items: center;
    padding: 40px 16px;
}
.auth-card { width: 100%; max-width: 420px; padding: 32px; }
.auth-card h1 { margin: 0 0 8px; font-size: 24px; }
.auth-card p.lead { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.auth-card label { font-size: 13px; margin-bottom: 6px; display: block; font-weight: 600; }
.auth-card input {
    width: 100%;
    height: 44px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 0 12px;
    margin-bottom: 12px;
    background: #fff;
}
.tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 16px; }
.tabs button {
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 8px;
    padding: 9px;
    cursor: pointer;
    font-weight: 700;
}
.tabs button.active { background: var(--navy); color: #fff; border-color: var(--navy); }
.alert-error { background: #fdeeee; color: #b42318; padding: 10px 12px; border-radius: 8px; font-size: 13px; margin-bottom: 12px; }

.quiz-brief { max-width: 860px; margin: 0 auto; }
.brief-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 28px;
}
.brief-stat {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 16px 12px;
    text-align: center;
}
.brief-stat i { color: var(--navy); margin-bottom: 6px; display: block; }
.brief-stat b { display: block; font-size: 20px; }
.brief-stat span { font-size: 12px; color: var(--muted); font-weight: 600; }
.brief-head { margin: 0 0 16px; }
.brief-head h2 { margin: 0 0 6px; font-size: 22px; }
.brief-head p { margin: 0; color: var(--muted); font-size: 14px; }
.mode-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 0 0 16px; }
.mode-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px;
    background: #fff;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}
.mode-card:hover { border-color: #c9ced8; color: inherit; }
.mode-exam { border-color: #c5d4f5; }
.mode-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    font-size: 16px;
    margin-bottom: 12px;
    background: #eef0f6;
    color: var(--navy);
}
.mode-practice .mode-icon { background: #fff8d6; color: #6b5a00; }
.mode-card h3 { margin: 10px 0 8px; font-size: 18px; }
.mode-card p { margin: 0 0 12px; color: var(--muted); font-size: 14px; }
.mode-card ul { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 7px; }
.mode-card li { font-size: 13px; color: #3d4654; display: flex; gap: 8px; align-items: center; }
.mode-card li i { color: var(--green); font-size: 11px; }
.mode-card.is-locked {
    background: #eef0f5;
    pointer-events: auto;
}
.mode-card.is-locked .btn { width: 100%; margin-top: auto; }
.mode-lock-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 800;
    color: #4c1d95;
    margin-bottom: 8px;
}
.brief-keys {
    color: var(--muted);
    font-size: 13px;
    padding: 4px 2px;
}

.quiz-wrap { padding-bottom: 20px; }
.quiz-layout { display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: 16px; align-items: start; }
.quiz-shell { padding: 18px 20px; }
.quiz-hud {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
}
.quiz-hud-copy strong { display: block; font-size: 16px; line-height: 1.3; }
.quiz-tools { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.q-pos {
    font-size: 13px;
    font-weight: 800;
    color: var(--navy);
    min-width: 52px;
    text-align: right;
}
.timer-box {
    background: var(--navy);
    color: #fff;
    border-radius: 8px;
    padding: 8px 12px;
    font-weight: 800;
    min-width: 78px;
    text-align: center;
    font-variant-numeric: tabular-nums;
}
.timer-box.warn { background: #b45309; }
.timer-box.danger { background: var(--red); }
.quiz-progress { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.quiz-progress span { font-size: 12px; font-weight: 700; color: var(--muted); min-width: 34px; }
.progress-track { height: 6px; background: #e6e8ee; border-radius: 999px; overflow: hidden; flex: 1; margin-bottom: 0; }
.progress-fill { height: 100%; background: var(--navy); width: 0; }
.question-title { font-size: 18px; margin: 0 0 12px; line-height: 1.4; }
.option-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.option-label {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #f3f5fa;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    min-height: 48px;
}
.option-label input { position: absolute; opacity: 0; width: 0; height: 0; }
.option-label:hover { border-color: #9db4ea; background: #eef2fb; }
.option-letter {
    width: 26px;
    height: 26px;
    border-radius: 6px;
    background: #fff;
    color: var(--navy);
    border: 1px solid var(--line);
    display: grid;
    place-items: center;
    font-size: 12px;
    flex-shrink: 0;
}
.option-text { line-height: 1.35; }
.option-label.selected { border-color: var(--navy); background: #e8ecf7; }
.option-label.selected .option-letter { background: var(--navy); color: #fff; border-color: var(--navy); }
.option-label.correct { background: #eef6f0; border-color: #22c55e; }
.option-label.incorrect { background: #fdeeee; border-color: #ef4444; }
.option-label img { width: 72px; height: 72px; object-fit: contain; }
.quiz-nav {
    display: flex;
    gap: 8px;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
    flex-wrap: wrap;
}
.quiz-nav #submitBtn { margin-left: auto; }
.side-card { padding: 16px; position: sticky; top: 76px; }
.side-card h4 { margin: 0 0 4px; font-size: 14px; }
.palette-hint { margin: 0 0 12px; font-size: 12px; color: var(--muted); }
.palette { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.palette button {
    height: 32px;
    border: 1px solid var(--line);
    background: #f3f5fa;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 700;
    font-size: 12px;
}
.palette button.current { background: var(--navy); color: #fff; border-color: var(--navy); }
.palette button.answered { background: #d8f0df; border-color: #9dcea9; }
.palette button.flagged { background: #ffe9a8; border-color: #e2c04a; }
.legend { display: grid; gap: 6px; font-size: 12px; color: var(--muted); margin-top: 12px; }
.legend span { display: flex; align-items: center; gap: 8px; }
.swatch { width: 12px; height: 12px; border-radius: 3px; display: inline-block; border: 1px solid var(--line); }
.swatch.current { background: var(--navy); border-color: var(--navy); }
.swatch.answered { background: #d8f0df; border-color: #9dcea9; }
.swatch.flagged { background: #ffe9a8; border-color: #e2c04a; }
.related-wrap { padding-top: 8px; }

.result-card { max-width: 840px; margin: 0 auto; padding: 36px 28px; text-align: center; }
.score-ring {
    width: 128px;
    height: 128px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    margin: 0 auto 16px;
    background: conic-gradient(var(--green) var(--p), #e6e8ee 0);
}
.score-ring span {
    width: 100px;
    height: 100px;
    background: #fff;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: 22px;
}
.result-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 18px 0 8px; }
.result-stats div { background: #f4f5f8; border-radius: 10px; padding: 12px; }
.result-stats b { display: block; font-size: 18px; }
.review-item { text-align: left; border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin-top: 12px; }
.review-item.ok { border-left: 4px solid var(--green); }
.review-item.bad { border-left: 4px solid var(--red); }

.empty-state {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    color: var(--muted);
}
.stat-tile h3 { font-size: 26px; margin: 0; }
.stat-tile p { margin: 4px 0 0; color: var(--muted); font-size: 13px; }

@media (max-width: 980px) {
    .hero-grid, .cards, .cards-4, .how, .option-grid, .quiz-layout, .mode-grid,
    .trust-bar .section-inner, .result-stats, .footer-grid, .exam-pair, .brief-stats {
        grid-template-columns: 1fr;
    }
    .hero h1 { font-size: 30px; }
    .page-head h1 { font-size: 24px; }
    .brand-copy { display: none; }
    .nav-toggle { display: grid; place-items: center; }
    .nav-links {
        display: none;
        position: absolute;
        top: 56px;
        left: 12px;
        right: 12px;
        background: #fff;
        border: 1px solid var(--line);
        box-shadow: var(--shadow);
        padding: 10px;
        border-radius: 10px;
        flex-direction: column;
        align-items: stretch;
    }
    .nav-links.open { display: flex; }
    .quiz-hud { flex-wrap: wrap; }
    .quiz-tools { width: 100%; justify-content: flex-start; }
    .side-card { position: static; }
    .quiz-nav #submitBtn { margin-left: 0; }
    .brief-stats { grid-template-columns: 1fr 1fr; }
}