/* ============================================
   EasyTest Design System - common.css
   Dark theme with glassmorphism
   ============================================ */

/* === Design Tokens === */
:root {
    --et-primary: #7c3aed;
    --et-primary-light: #a78bfa;
    --et-primary-dark: #5b21b6;
    --et-accent: #f43f5e;
    --et-accent-hover: #e11d48;

    --et-bg: #0c0a1d;
    --et-bg-secondary: #151030;
    --et-bg-card: rgba(255, 255, 255, 0.04);
    --et-bg-card-hover: rgba(255, 255, 255, 0.08);
    --et-bg-content: rgba(255, 255, 255, 0.06);

    --et-text: #cbd5e1;
    --et-text-muted: #64748b;
    --et-text-heading: #f1f5f9;

    --et-border: rgba(255, 255, 255, 0.08);
    --et-border-hover: rgba(255, 255, 255, 0.16);

    --et-glow: rgba(124, 58, 237, 0.35);
    --et-success: #10b981;
    --et-warning: #f59e0b;
    --et-error: #ef4444;
    --et-info: #3b82f6;

    --et-font: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
    --et-radius: 16px;
    --et-radius-lg: 24px;
    --et-radius-sm: 10px;
    --et-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Base === */
* { box-sizing: border-box; }

body.et-dark {
    font-family: var(--et-font);
    background: var(--et-bg);
    color: var(--et-text);
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
}

body.et-dark::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 15% 50%, rgba(124, 58, 237, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 85% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 70% 40% at 50% 90%, rgba(59, 130, 246, 0.06) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
}

/* === Glass Card === */
.glass {
    background: var(--et-bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--et-border);
    border-radius: var(--et-radius);
    transition: all var(--et-transition);
}

.glass:hover {
    background: var(--et-bg-card-hover);
    border-color: var(--et-border-hover);
}

.glass-card {
    background: var(--et-bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--et-border);
    border-radius: var(--et-radius-lg);
    transition: all var(--et-transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.glass-card:hover {
    background: var(--et-bg-card-hover);
    border-color: var(--et-border-hover);
    transform: translateY(-6px);
    box-shadow:
        0 25px 50px rgba(0, 0, 0, 0.4),
        0 0 40px var(--et-glow);
}

.glass-card:focus-within {
    outline: 2px solid var(--et-primary-light);
    outline-offset: 2px;
}

/* === Glass Content Box (for sub-pages) === */
.glass-content {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--et-border);
    border-radius: var(--et-radius);
}

/* === Icon Circle === */
.icon-circle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    border-radius: 20px;
    margin-bottom: 16px;
    transition: all var(--et-transition);
}

.glass-card:hover .icon-circle {
    transform: scale(1.08);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

/* === Buttons === */
.et-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 14px;
    font-weight: 700;
    font-size: 1rem;
    font-family: var(--et-font);
    border: none;
    cursor: pointer;
    transition: all var(--et-transition);
    text-decoration: none;
    line-height: 1.2;
}

.et-btn-primary {
    background: linear-gradient(135deg, var(--et-primary) 0%, var(--et-primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 20px var(--et-glow);
}

.et-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--et-glow);
    filter: brightness(1.1);
}

.et-btn-accent {
    background: linear-gradient(135deg, var(--et-accent), #be123c);
    color: white;
    box-shadow: 0 4px 20px rgba(244, 63, 94, 0.3);
}

.et-btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(244, 63, 94, 0.4);
}

.et-btn-ghost {
    background: rgba(255, 255, 255, 0.06);
    color: var(--et-text);
    border: 1px solid var(--et-border);
}

.et-btn-ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--et-border-hover);
}

/* === Home Button (sub-pages) === */
.et-home-btn {
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 50;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    font-size: 14px;
    text-decoration: none;
    transition: all var(--et-transition);
}

.et-home-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

/* === Footer === */
.et-footer {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--et-border);
    color: var(--et-text-muted);
    text-align: center;
    padding: 28px 16px;
    font-size: 14px;
}

/* === Section Header === */
.et-section-title {
    color: var(--et-text-heading);
    font-weight: 800;
    margin-bottom: 8px;
}

.et-section-subtitle {
    color: var(--et-text-muted);
}

/* === Info Card (benchmarks, rules) === */
.et-info-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--et-border);
    border-radius: var(--et-radius-sm);
    padding: 20px;
    transition: all var(--et-transition);
}

.et-info-card:hover {
    background: rgba(255, 255, 255, 0.06);
}

/* === Rules Box === */
.et-rules-box {
    background: rgba(124, 58, 237, 0.08);
    border: 1px solid rgba(124, 58, 237, 0.2);
    border-radius: var(--et-radius-sm);
    padding: 20px;
}

.et-rules-box li {
    color: var(--et-text);
    margin-bottom: 4px;
}

/* === Result Section === */
.et-result-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--et-border);
    border-radius: var(--et-radius);
    padding: 24px;
}

/* === Progress Bar === */
.et-progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    overflow: hidden;
    margin: 10px 0;
}

.et-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--et-primary), var(--et-primary-light));
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* === Share Buttons === */
.et-share-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 14px;
    font-family: var(--et-font);
    border: none;
    cursor: pointer;
    transition: all var(--et-transition);
    color: white;
}

.et-share-btn:hover {
    transform: translateY(-2px);
    filter: brightness(1.1);
}

.et-share-kakao { background: #FEE500; color: #3C1E1E; }
.et-share-facebook { background: #1877F2; }
.et-share-instagram { background: linear-gradient(45deg, #833AB4, #C13584, #E1306C); }
.et-share-link {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* === Game Container (bright inner area for gameplay) === */
.et-game-area {
    background: #ffffff;
    border-radius: 12px;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

/* === Level Indicator (reused across tests) === */
.et-level-indicator {
    position: relative;
    width: 100%;
    height: 20px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    margin: 60px 0 80px 0;
}

.et-level-progress {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--et-success), var(--et-info), var(--et-error));
    border-radius: 10px;
    transition: width 0.8s ease-out;
    overflow: hidden;
}

/* === Comparison Table === */
.et-table {
    width: 100%;
    font-size: 14px;
    border-collapse: collapse;
}

.et-table thead tr {
    background: rgba(255, 255, 255, 0.06);
}

.et-table th, .et-table td {
    padding: 10px 16px;
    text-align: left;
    border-bottom: 1px solid var(--et-border);
    color: var(--et-text);
}

.et-table th {
    font-weight: 600;
    color: var(--et-text-heading);
}

/* === Animations === */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes glow-pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

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

.animate-fadeInUp { animation: fadeInUp 0.6s ease-out both; }
.animate-fadeInUp-1 { animation: fadeInUp 0.6s ease-out 0.1s both; }
.animate-fadeInUp-2 { animation: fadeInUp 0.6s ease-out 0.2s both; }
.animate-fadeInUp-3 { animation: fadeInUp 0.6s ease-out 0.3s both; }
.animate-fadeInUp-4 { animation: fadeInUp 0.6s ease-out 0.4s both; }
.animate-float { animation: float 6s ease-in-out infinite; }

/* === Accessibility === */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

*:focus-visible {
    outline: 2px solid var(--et-primary-light);
    outline-offset: 2px;
}

/* === Responsive === */
@media (max-width: 768px) {
    .icon-circle {
        width: 60px;
        height: 60px;
        border-radius: 16px;
    }

    .et-home-btn {
        top: 10px;
        left: 10px;
        padding: 8px 14px;
        font-size: 13px;
    }

    .et-btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .icon-circle {
        width: 52px;
        height: 52px;
        border-radius: 14px;
    }

    .icon-circle i {
        font-size: 1.5rem !important;
    }

    .et-home-btn {
        padding: 8px 10px;
        gap: 0;
    }

    .et-home-btn span {
        display: none;
    }
}

/* === Utility === */
.hidden { display: none !important; }
.text-glow { text-shadow: 0 0 20px var(--et-glow); }