/* ===== Reaction Test Styles ===== */

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

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-dark, #050505);
    color: var(--text-main, #ffffff);
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    overflow-x: hidden;
}

/* ===== Header ===== */
.g4f-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: var(--bg-card, rgba(20, 20, 25, 0.7));
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass, rgba(255, 255, 255, 0.1));
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-main, #fff);
    font-size: 1.2rem;
    font-weight: 600;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-neon, #6366f1), var(--secondary-neon, #ec4899));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.highlight-4 {
    color: var(--secondary-neon, #ec4899);
    font-weight: 700;
}

.lang-switch {
    display: flex;
    gap: 6px;
}

.lang-btn {
    padding: 6px 14px;
    border: 1px solid var(--border-glass, rgba(255, 255, 255, 0.1));
    border-radius: 8px;
    background: transparent;
    color: var(--text-dim, #94a3b8);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.lang-btn.active {
    background: var(--primary-neon, #6366f1);
    color: #fff;
    border-color: var(--primary-neon, #6366f1);
}

.lang-btn:hover {
    border-color: var(--primary-neon, #6366f1);
}

/* ===== Game Container ===== */
.game-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px 16px;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

/* ===== Game Header ===== */
.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-bottom: 20px;
    gap: 16px;
}

.game-title {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-neon, #6366f1), var(--secondary-neon, #ec4899));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.round-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-dim, #94a3b8);
    font-size: 0.95rem;
    font-weight: 500;
}

#round-display {
    color: var(--text-main, #fff);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

/* ===== Stats Bar ===== */
.stats-bar {
    display: flex;
    justify-content: center;
    gap: 48px;
    width: 100%;
    margin-bottom: 20px;
    padding: 14px 20px;
    background: var(--bg-card, rgba(20, 20, 25, 0.7));
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass, rgba(255, 255, 255, 0.1));
    border-radius: 14px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim, #94a3b8);
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main, #fff);
    font-variant-numeric: tabular-nums;
}

/* ===== Reaction Zone ===== */
.reaction-zone {
    width: 100%;
    min-height: 340px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    transition: background-color 0.15s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
    margin-bottom: 20px;
}

.reaction-zone.state-idle {
    background: var(--bg-card, rgba(20, 20, 25, 0.7));
    border: 1px solid var(--border-glass, rgba(255, 255, 255, 0.1));
    backdrop-filter: blur(12px);
}

.reaction-zone.state-idle:hover {
    border-color: var(--primary-neon, #6366f1);
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.15);
}

.reaction-zone.state-waiting {
    background: #b91c1c;
    border: 1px solid #dc2626;
    box-shadow: 0 0 40px rgba(185, 28, 28, 0.3), inset 0 0 60px rgba(0, 0, 0, 0.2);
}

.reaction-zone.state-ready {
    background: #15803d;
    border: 1px solid #22c55e;
    box-shadow: 0 0 40px rgba(21, 128, 61, 0.4), inset 0 0 60px rgba(0, 0, 0, 0.15);
    animation: pulseGreen 0.6s ease-in-out;
}

.reaction-zone.state-result {
    background: var(--bg-card, rgba(20, 20, 25, 0.7));
    border: 1px solid var(--border-glass, rgba(255, 255, 255, 0.1));
    backdrop-filter: blur(12px);
}

.reaction-zone.state-early {
    background: #92400e;
    border: 1px solid #f59e0b;
    box-shadow: 0 0 40px rgba(146, 64, 14, 0.3), inset 0 0 60px rgba(0, 0, 0, 0.2);
}

@keyframes pulseGreen {
    0% { transform: scale(1); }
    50% { transform: scale(1.01); }
    100% { transform: scale(1); }
}

.reaction-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 20px;
    text-align: center;
}

.reaction-icon {
    font-size: 3rem;
    line-height: 1;
}

.reaction-text {
    font-size: 1.6rem;
    font-weight: 700;
    color: #fff;
}

/* ===== Reaction Time Display ===== */
.reaction-time-display {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.reaction-time-display.hidden {
    display: none;
}

.time-number {
    font-size: 4rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    background: linear-gradient(135deg, var(--primary-neon, #6366f1), var(--secondary-neon, #ec4899));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: countUp 0.4s ease-out;
}

.time-unit {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dim, #94a3b8);
}

@keyframes countUp {
    from { opacity: 0; transform: translateY(20px) scale(0.8); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.reaction-rank {
    font-size: 1.1rem;
    font-weight: 600;
    padding: 4px 16px;
    border-radius: 20px;
    animation: fadeIn 0.3s ease 0.2s both;
}

.reaction-rank.hidden {
    display: none;
}

.reaction-rank.rank-amazing {
    background: rgba(34, 197, 94, 0.2);
    color: #4ade80;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.reaction-rank.rank-fast {
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.reaction-rank.rank-average {
    background: rgba(245, 158, 11, 0.2);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.reaction-rank.rank-slow {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-next {
    margin-top: 8px;
    padding: 10px 28px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-neon, #6366f1), var(--secondary-neon, #ec4899));
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    animation: fadeIn 0.3s ease 0.3s both;
}

.btn-next.hidden {
    display: none;
}

.btn-next:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
}

/* ===== History Section ===== */
.history-section {
    width: 100%;
    margin-bottom: 20px;
    padding: 20px 24px;
    background: var(--bg-card, rgba(20, 20, 25, 0.7));
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass, rgba(255, 255, 255, 0.1));
    border-radius: 14px;
    animation: fadeIn 0.4s ease;
}

.history-section.hidden {
    display: none;
}

.history-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim, #94a3b8);
    margin-bottom: 16px;
}

.bar-chart {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 12px;
    height: 120px;
}

.bar-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    flex: 1;
    max-width: 80px;
}

.bar-fill {
    width: 100%;
    border-radius: 6px 6px 2px 2px;
    min-height: 8px;
    transition: height 0.5s ease;
    position: relative;
}

.bar-fill.rank-amazing { background: linear-gradient(180deg, #4ade80, #16a34a); }
.bar-fill.rank-fast { background: linear-gradient(180deg, #60a5fa, #2563eb); }
.bar-fill.rank-average { background: linear-gradient(180deg, #fbbf24, #d97706); }
.bar-fill.rank-slow { background: linear-gradient(180deg, #f87171, #dc2626); }

.bar-label {
    font-size: 0.75rem;
    color: var(--text-dim, #94a3b8);
    font-variant-numeric: tabular-nums;
}

.bar-round {
    font-size: 0.65rem;
    color: var(--text-dim, #94a3b8);
    opacity: 0.6;
}

/* ===== Results Panel ===== */
.results-panel {
    display: none;
    width: 100%;
    padding: 32px;
    background: var(--bg-card, rgba(20, 20, 25, 0.7));
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass, rgba(255, 255, 255, 0.1));
    border-radius: 14px;
    text-align: center;
    animation: fadeIn 0.4s ease;
    margin-bottom: 20px;
}

.results-panel.visible {
    display: block;
}

.results-panel.hidden {
    display: none;
}

.results-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--primary-neon, #6366f1), var(--secondary-neon, #ec4899));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.new-record {
    display: inline-block;
    padding: 4px 16px;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #fff;
    animation: pulse 1.5s ease-in-out infinite;
}

.new-record.hidden {
    display: none;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 16px;
    margin: 24px 0;
}

.result-item {
    padding: 16px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.result-item.result-primary {
    border-color: var(--primary-neon, #6366f1);
    background: rgba(99, 102, 241, 0.08);
}

.result-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim, #94a3b8);
    margin-bottom: 6px;
}

.result-value {
    display: block;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-main, #fff);
    font-variant-numeric: tabular-nums;
}

.result-primary .result-value {
    background: linear-gradient(135deg, var(--primary-neon, #6366f1), var(--secondary-neon, #ec4899));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2.2rem;
}

.final-chart {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 12px;
    height: 100px;
    margin: 20px 0;
}

.btn-try-again {
    padding: 12px 32px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-neon, #6366f1), var(--secondary-neon, #ec4899));
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 8px;
}

.btn-try-again:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
}

/* ===== Ad Container ===== */
.g4f-ad-container {
    width: 100%;
    margin-top: 24px;
    padding: 20px;
    border: 1px dashed var(--border-glass, rgba(255, 255, 255, 0.1));
    border-radius: 12px;
    text-align: center;
}

.ad-placeholder-content {
    color: var(--text-dim, #94a3b8);
    font-size: 0.8rem;
    opacity: 0.5;
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--text-dim, #94a3b8);
    font-size: 0.8rem;
    border-top: 1px solid var(--border-glass, rgba(255, 255, 255, 0.1));
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
    .reaction-zone {
        min-height: 280px;
        border-radius: 16px;
    }

    .time-number {
        font-size: 3rem;
    }

    .reaction-text {
        font-size: 1.3rem;
    }

    .stats-bar {
        gap: 24px;
        padding: 12px 14px;
    }

    .stat-value {
        font-size: 1.2rem;
    }

    .game-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .results-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}