/* =============================================================
   Quiz 21: VESSEL TRACKER — Styles
   Radar station at night. CRT green-on-black aesthetic.
   ============================================================= */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;600&display=swap');

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --navy: #1e3a5f;
    --orange: #FF9800;
    --bg: #0a0a0a;
    --correct: #22c55e;
    --incorrect: #ef4444;
    --text: #e2e8f0;
    --vt-radar-bg: #0a1a0a;
    --vt-radar-ring: rgba(0, 200, 100, 0.15);
    --vt-radar-target: #00cc66;
    --vt-radar-target-glow: rgba(0, 200, 100, 0.5);
    --vt-radar-vector: #00ff88;
    --vt-radar-text: #00cc66;
    --vt-radar-text-dim: rgba(0, 200, 100, 0.5);
    --vt-radar-sweep: rgba(0, 200, 100, 0.08);
    --vt-crt-line: rgba(0, 200, 100, 0.02);
    --vt-blackout: rgba(0, 0, 0, 0.85);
}

body {
    font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
    overflow-x: hidden;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 1.5rem 1.2rem;
}

/* --- SCREENS --- */
.screen { display: none; animation: fadeIn 0.3s ease; }
.screen.active { display: block; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ===== LANDING PAGE ===== */

@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes ctaGlow {
    0%, 100% { box-shadow: 0 0 15px rgba(255,152,0,0.4); }
    50% { box-shadow: 0 0 30px rgba(255,152,0,0.6), 0 0 60px rgba(255,152,0,0.2); }
}

.landing-badge {
    display: block;
    text-align: center;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--orange);
    margin-bottom: 10px;
    animation: fadeSlideUp 0.5s ease both;
}

.landing-doi {
    display: block;
    text-align: center;
    font-size: 0.65rem;
    margin-bottom: 16px;
}

.landing-doi a {
    color: rgba(255,255,255,0.4);
    text-decoration: none;
    font-family: 'JetBrains Mono', monospace;
}

.landing-doi a:hover { color: var(--orange); }

.landing-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-section {
    background: linear-gradient(135deg, rgba(0,200,100,0.04) 0%, rgba(0,200,100,0.01) 100%);
    border: 1px solid rgba(0,200,100,0.15);
    border-radius: 20px;
    padding: 2rem 1.5rem 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    animation: fadeSlideUp 0.5s ease 0.1s both;
    position: relative;
    overflow: hidden;
}

/* CRT scanline overlay */
.hero-section::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        var(--vt-crt-line) 2px,
        var(--vt-crt-line) 4px
    );
    pointer-events: none;
}

.hero-section h1 {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    line-height: 1.1;
    margin-bottom: 0.6rem;
    color: var(--vt-radar-target);
    text-shadow: 0 0 30px rgba(0,200,100,0.3), 0 0 60px rgba(0,200,100,0.1);
}

.hero-section h2 {
    font-size: 1.05rem;
    font-weight: 500;
    color: rgba(255,255,255,0.6);
    margin-bottom: 1.5rem;
}

/* Landing radar preview canvas */
.radar-preview-container {
    width: 200px;
    height: 200px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    border: 2px solid rgba(0,200,100,0.2);
    overflow: hidden;
    position: relative;
}

#radar-preview {
    width: 100%;
    height: 100%;
    display: block;
}

/* Feature pills */
.landing-features {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 18px;
    animation: fadeSlideUp 0.5s ease 0.5s both;
}
.feature-pill {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.5);
    font-weight: 600;
}
.feature-pill-dot {
    color: rgba(255,255,255,0.25);
    font-size: 0.7rem;
}

/* CTA button */
.cta-button {
    display: block;
    width: 100%;
    max-width: 360px;
    margin: 1.5rem auto 1rem;
    padding: 1.1rem 2rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: #0a1628;
    background: linear-gradient(135deg, var(--orange) 0%, #ff8f5e 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(255,152,0,0.35);
    -webkit-tap-highlight-color: transparent;
    animation: fadeSlideUp 0.5s ease 0.35s both, ctaGlow 3s ease-in-out 1.5s infinite;
    font-family: inherit;
}

.cta-button:hover {
    background: #ff8555;
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(255,152,0,0.45);
    animation: none;
}

.cta-button:active { transform: translateY(0); }

.sound-inline {
    cursor: pointer;
    vertical-align: middle;
}

.sound-inline input[type="checkbox"] {
    accent-color: var(--orange);
    vertical-align: middle;
    margin-left: 2px;
}

/* Timer progress bar */
.timer-bar-top {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 12px;
    background: rgba(255,255,255,0.08);
    z-index: 10000;
}

.timer-bar-fill {
    height: 100%;
    width: 100%;
    background: #4ade80;
    transition: width 1s linear, background-color 0.5s ease;
    border-radius: 0 2px 2px 0;
}

.timer-bar-fill.timer-warning {
    background: #FF9800;
}

.timer-bar-fill.timer-danger {
    background: #ef4444;
    animation: timerBarPulse 1s ease-in-out infinite;
}

.timer-bar-fill.timer-critical {
    background: #ef4444;
    animation: timerBarPulse 0.5s ease-in-out infinite;
    height: 14px;
}

@keyframes timerBarPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ===== GAME SCREEN ===== */
.game-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 8px;
    padding-bottom: 0;
    position: relative;
}

/* CRT scanline overlay on game */
.game-container::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        var(--vt-crt-line) 2px,
        var(--vt-crt-line) 4px
    );
    pointer-events: none;
    z-index: 100;
}

/* Vignette */
.game-container::after {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(ellipse at center, transparent 50%, rgba(0,0,0,0.4) 100%);
    pointer-events: none;
    z-index: 99;
}

/* HUD */
.game-hud {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    position: relative;
    z-index: 10;
}

.hud-round {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--vt-radar-text-dim);
}

.hud-score {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--vt-radar-text-dim);
}

/* Radar canvas wrapper */
.radar-wrapper {
    position: relative;
    width: 85vw;
    height: 85vw;
    max-width: 500px;
    max-height: 500px;
    margin: 0 auto;
    z-index: 5;
}

#radar-canvas {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid rgba(0, 200, 100, 0.3);
    display: block;
}

/* Study phase overlay */
.study-overlay {
    position: absolute;
    top: 8%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    text-align: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.study-overlay.visible { opacity: 1; }

.study-text {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--vt-radar-target);
    text-shadow: 0 0 10px rgba(0,200,100,0.5);
}

.study-countdown {
    font-family: 'JetBrains Mono', monospace;
    font-size: 2rem;
    font-weight: 700;
    color: var(--vt-radar-target);
    text-shadow: 0 0 20px rgba(0,200,100,0.6);
    margin-top: 4px;
}

/* Blackout overlay */
.blackout-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--vt-blackout);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 30;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
}

.blackout-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

.blackout-message {
    font-size: 0.9rem;
    font-style: italic;
    color: rgba(255,255,255,0.5);
    text-align: center;
    max-width: 80%;
    margin-bottom: 16px;
    line-height: 1.5;
}

.blackout-countdown {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.2rem;
    color: rgba(0, 200, 100, 0.4);
}

/* Question area */
.question-area {
    width: 100%;
    max-width: 500px;
    padding: 16px;
    z-index: 10;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.question-area.visible {
    opacity: 1;
    transform: translateY(0);
}

.question-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    text-align: center;
    margin-bottom: 12px;
}

.answer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.answer-btn {
    padding: 14px 12px;
    font-family: 'Manrope', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    color: rgba(255,255,255,0.8);
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    -webkit-tap-highlight-color: transparent;
    min-height: 48px;
    text-align: center;
}

.answer-btn:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.2);
}

.answer-btn:active {
    transform: scale(0.97);
}

.answer-btn.selected {
    border-color: var(--orange);
    background: rgba(255,152,0,0.15);
    color: #fff;
}

.answer-btn.correct {
    border-color: var(--correct);
    background: rgba(34,197,94,0.15);
    color: var(--correct);
}

.answer-btn.wrong {
    border-color: var(--incorrect);
    background: rgba(239,68,68,0.1);
    color: var(--incorrect);
    text-decoration: line-through;
}

.answer-btn:disabled {
    cursor: default;
    pointer-events: none;
}

/* Question timer bar */
.question-timer {
    width: 100%;
    height: 3px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    margin-top: 12px;
    overflow: hidden;
}

.question-timer-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--orange), var(--incorrect));
    width: 100%;
    transition: width linear;
    border-radius: 2px;
}

/* Feedback card */
.feedback-card {
    width: 100%;
    max-width: 500px;
    padding: 16px;
    border-radius: 12px;
    margin-top: 12px;
    z-index: 10;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feedback-card.visible { opacity: 1; }

.feedback-card.feedback-correct {
    background: rgba(34,197,94,0.1);
    border: 1px solid rgba(34,197,94,0.3);
}

.feedback-card.feedback-wrong {
    background: rgba(255,152,0,0.1);
    border: 1px solid rgba(255,152,0,0.3);
}

.feedback-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.feedback-correct .feedback-title { color: var(--correct); }
.feedback-wrong .feedback-title { color: var(--orange); }

.feedback-text {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.5;
}

/* USP insight (appears after missed change detection) */
.usp-insight {
    width: 100%;
    max-width: 500px;
    padding: 12px 16px;
    border-left: 3px solid var(--orange);
    background: rgba(255,152,0,0.05);
    border-radius: 0 8px 8px 0;
    margin-top: 8px;
    z-index: 10;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.usp-insight.visible { opacity: 1; }

.usp-insight p {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.5);
    font-style: italic;
    line-height: 1.5;
}

/* Round transition screen */
.round-transition {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.round-transition.visible {
    opacity: 1;
    pointer-events: auto;
}

.round-transition-number {
    font-family: 'JetBrains Mono', monospace;
    font-size: 3rem;
    font-weight: 700;
    color: var(--vt-radar-target);
    text-shadow: 0 0 30px rgba(0,200,100,0.5);
    margin-bottom: 8px;
}

.round-transition-type {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.4);
    font-weight: 500;
}

/* ===== RESULTS PAGE ===== */
.results-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: 24px;
    padding-bottom: 40px;
}

/* Score display */
.score-display {
    text-align: center;
    margin-bottom: 1.5rem;
    padding: 2rem 1.5rem;
    background: rgba(0,200,100,0.04);
    border: 1px solid rgba(0,200,100,0.1);
    border-radius: 16px;
}

.score-number {
    font-size: 4rem;
    font-weight: 800;
    font-family: 'JetBrains Mono', monospace;
    line-height: 1;
    margin-bottom: 4px;
}

.score-number.score-green { color: var(--correct); }
.score-number.score-orange { color: var(--orange); }
.score-number.score-red { color: var(--incorrect); }

.score-label {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.4);
    margin-bottom: 8px;
}

.score-title {
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.score-title.score-green { color: var(--correct); }
.score-title.score-orange { color: var(--orange); }
.score-title.score-red { color: var(--incorrect); }

.score-message {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
    margin-top: 12px;
}

/* Round breakdown */
.round-breakdown {
    margin-bottom: 1.5rem;
}

.round-breakdown-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: rgba(255,255,255,0.5);
    text-align: center;
    margin-bottom: 12px;
}

.round-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: rgba(255,255,255,0.04);
    border-radius: 10px;
    margin-bottom: 6px;
}

.round-row-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--vt-radar-text-dim);
    min-width: 20px;
}

.round-row-type {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.4);
    flex: 1;
}

.round-row-result {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    font-weight: 700;
}

.round-row-result.correct { color: var(--correct); }
.round-row-result.wrong { color: var(--incorrect); }

.round-row-time {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: rgba(255,255,255,0.3);
    min-width: 40px;
    text-align: right;
}

/* Working memory insight */
.insight-section {
    background: rgba(255,255,255,0.04);
    border-left: 4px solid var(--orange);
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.insight-section h3 {
    color: var(--orange);
    margin-bottom: 0.8rem;
    font-size: 1rem;
    font-weight: 700;
}

.insight-section p {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.7;
    margin-bottom: 0.8rem;
}

.insight-section p:last-child { margin-bottom: 0; }

/* Fatigue connection */
.fatigue-section {
    background: rgba(0,200,100,0.04);
    border: 1px solid rgba(0,200,100,0.1);
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.fatigue-section p {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
    line-height: 1.7;
    font-style: italic;
}

.fatigue-section a {
    color: var(--orange);
    text-decoration: none;
    font-weight: 600;
}

.fatigue-section a:hover { text-decoration: underline; }

/* Email gate */
.report-gate {
    text-align: center;
    margin-bottom: 0.8rem;
    padding: 1.5rem;
    background: rgba(255,152,0,0.1);
    border: 2px solid rgba(255,152,0,0.4);
    border-radius: 16px;
}

.report-gate h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.3rem;
}

.report-gate > p, .gate-subtext {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
    margin-bottom: 1rem;
}

#newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    max-width: 320px;
    margin: 0 auto;
}

#newsletter-form input[type="email"],
.second-chance input[type="email"] {
    padding: 0.85rem;
    font-size: 1rem;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 10px;
    background: rgba(255,255,255,0.08);
    color: #fff;
    font-family: inherit;
}

#newsletter-form input[type="email"]::placeholder,
.second-chance input[type="email"]::placeholder {
    color: rgba(255,255,255,0.4);
}

#newsletter-form input[type="email"]:focus,
.second-chance input[type="email"]:focus {
    outline: none;
    border-color: var(--orange);
}

.subscribe-button {
    padding: 0.9rem 1.5rem;
    font-size: 1.05rem;
    font-weight: 700;
    color: #0a1628;
    background: var(--orange);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.subscribe-button:hover:not(:disabled) { background: #ff8555; }
.subscribe-button:disabled { opacity: 0.6; cursor: default; }

.form-message { font-size: 0.9rem; margin-top: 0.6rem; }
.form-message.success { color: #4caf50; }
.form-message.error { color: #ff4444; }

.skip-link {
    display: block;
    text-align: center;
    margin: 0.5rem auto 1.5rem;
    padding: 8px;
    background: none;
    border: none;
    color: rgba(255,255,255,0.5);
    font-size: 0.85rem;
    cursor: pointer;
    text-decoration: underline;
    font-family: inherit;
}

.skip-link:hover { color: rgba(255,255,255,0.7); }

/* Social sharing */
.social-sharing {
    background: rgba(255,255,255,0.04);
    border-radius: 14px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.social-sharing h3 {
    text-align: center;
    margin-bottom: 1rem;
    font-size: 1.05rem;
    font-weight: 600;
    color: rgba(255,255,255,0.8);
}

.share-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.share-btn {
    padding: 0.85rem;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    -webkit-tap-highlight-color: transparent;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.share-btn.native { background: #FF9800; color: #0a1628; }
.share-btn.facebook { background: #1877f2; color: #fff; }
.share-btn.linkedin { background: #0a66c2; color: #fff; }
.share-btn.copy { background: rgba(255,255,255,0.12); color: #fff; border: 1px solid rgba(255,255,255,0.2); }

/* Second chance */
.second-chance {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    margin-bottom: 1.5rem;
}

.second-chance > p {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.second-chance form {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    max-width: 320px;
    margin: 0 auto;
}

/* Play again */
.play-again-btn {
    display: block;
    width: 100%;
    max-width: 240px;
    margin: 1rem auto 0;
    padding: 0.9rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--orange);
    background: transparent;
    border: 2px solid rgba(255,152,0,0.3);
    border-radius: 50px;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    font-family: inherit;
}

.play-again-btn:hover {
    border-color: var(--orange);
    background: rgba(255,152,0,0.08);
}

/* Particle burst */
.particle {
    position: fixed;
    width: 6px;
    height: 6px;
    background: var(--orange);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    animation: particleBurst 0.7s ease-out forwards;
}

@keyframes particleBurst {
    0% { transform: translate(0, 0) scale(1); opacity: 1; }
    100% { transform: translate(var(--dx), var(--dy)) scale(0); opacity: 0; }
}

/* GDPR consent */
.gdpr-consent {
    display: flex; align-items: flex-start; gap: 8px;
    font-size: 0.75rem; color: rgba(255,255,255,0.4);
    cursor: pointer; text-align: left; line-height: 1.4;
}
.gdpr-consent input[type="checkbox"] {
    margin-top: 2px; flex-shrink: 0; accent-color: var(--orange);
    width: 16px; height: 16px; cursor: pointer;
}
.gdpr-consent a { color: rgba(255,255,255,0.5); text-decoration: underline; }
.gdpr-consent a:hover { color: var(--orange); }

/* ===== RESPONSIVE ===== */
@media (min-width: 769px) {
    .radar-wrapper {
        width: 60vw;
        height: 60vw;
        max-width: 600px;
        max-height: 600px;
    }
}

@media (max-width: 768px) {
    .answer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .round-breakdown .round-row {
        gap: 6px;
    }
}

@media (max-width: 480px) {
    .container { padding: 1.2rem 1rem; }
    .hero-section h1 { font-size: 1.8rem; }
    .hero-section h2 { font-size: 0.95rem; }
    .score-number { font-size: 3rem; }
    .cta-button, .subscribe-button, .share-btn { min-height: 48px; }
    .radar-wrapper {
        width: 90vw;
        height: 90vw;
    }
}

/* ===== BRIEFING SCREEN ===== */
.briefing-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
}

.briefing-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #fff;
}

.briefing-instruction {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.briefing-legend {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 1.5rem;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
}

.legend-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    border-radius: 10px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
}

.legend-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.legend-info {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.legend-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: #fff;
}

.legend-desc {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.5);
}

.briefing-practice {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.4);
    margin-bottom: 1rem;
    font-style: italic;
}

.briefing-btn {
    display: block;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
    padding: 1rem 2rem;
    font-size: 1.15rem;
    font-weight: 700;
    color: #0a1628;
    background: linear-gradient(135deg, #FF9800 0%, #ff8f5e 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    box-shadow: 0 4px 20px rgba(255,152,0,0.35);
}

.briefing-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(255,152,0,0.45);
}