/**
 * Song Quiz - Stylesheet (Matching Working Design)
 */

:root {
    --bg-dark: #0a0a0f;
    --bg-card: #12121a;
    --bg-hover: #1a1a25;
    --accent-pink: #ff2d6a;
    --accent-cyan: #00f5d4;
    --accent-purple: #9d4edd;
    --accent-yellow: #ffe66d;
    --text-primary: #ffffff;
    --text-secondary: #8888aa;
    --border-color: #2a2a3a;
    --success: #00f5a0;
    --error: #ff4757;
}

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

body {
    font-family: 'Space Mono', monospace;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background Effects */
.bg-animation {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(157, 78, 221, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(255, 45, 106, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(0, 245, 212, 0.05) 0%, transparent 70%);
}

.leaderboard-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.leaderboard-rank {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9rem;
}

.leaderboard-rank.gold {
    background: linear-gradient(135deg, #ffd700, #ffaa00);
    color: #000;
}

.leaderboard-rank.silver {
    background: linear-gradient(135deg, #c0c0c0, #a0a0a0);
    color: #000;
}

.leaderboard-rank.bronze {
    background: linear-gradient(135deg, #cd7f32, #a0522d);
    color: #fff;
}

.leaderboard-name {
    flex: 1;
}

.leaderboard-score {
    color: var(--accent-cyan);
    font-weight: bold;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.stat-box {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1rem;
    text-align: center;
}

.stat-value {
    font-family: 'Dela Gothic One', cursive;
    font-size: 1.5rem;
    color: var(--accent-cyan);
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.loading {
    display: flex;
    justify-content: center;
    padding: 2rem;
}

.spinner {
    width: 36px;
    height: 36px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.grid-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
    background-image: 
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 50px 50px;
}

/* Top Navigation */
.top-nav {
    background: rgba(18, 18, 26, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    font-family: 'Dela Gothic One', cursive;
    font-size: 1.2rem;
    background: linear-gradient(135deg, var(--accent-pink), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.nav-links a, .nav-links button {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.3s;
    font-family: inherit;
}

.nav-links a:hover, .nav-links button:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.1);
}

.nav-links .admin-link {
    color: var(--accent-pink);
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-cyan);
    font-weight: bold;
}

/* Container */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header */
header {
    text-align: center;
    padding: 2rem 0;
}

.logo {
    font-family: 'Dela Gothic One', cursive;
    font-size: clamp(2.5rem, 8vw, 4rem);
    background: linear-gradient(135deg, var(--accent-pink), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -2px;
}

.tagline {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-pink), var(--accent-cyan), var(--accent-purple));
}

.card-title {
    font-family: 'Dela Gothic One', cursive;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Form Elements */
.form-group { 
    margin-bottom: 1.25rem; 
}

label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

input[type="text"], 
input[type="password"], 
input[type="email"], 
input[type="number"], 
select {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--accent-cyan);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: 'Dela Gothic One', cursive;
    font-size: 0.9rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 45, 106, 0.3);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--accent-cyan);
    color: var(--accent-cyan);
}

.btn-secondary:hover {
    background: var(--accent-cyan);
    color: var(--bg-dark);
}

.btn-large {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

/* Mode Toggle */
.mode-toggle {
    display: flex;
    gap: 0.5rem;
    background: var(--bg-dark);
    padding: 0.4rem;
    border-radius: 10px;
    border: 2px solid var(--border-color);
}

.mode-option {
    flex: 1;
    padding: 0.75rem;
    text-align: center;
    border-radius: 6px;
    cursor: pointer;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.85rem;
    transition: all 0.3s;
}

.mode-option.active {
    background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
    color: white;
}

/* Genre Chips */
.genre-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.genre-chip {
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    border: 2px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.3s;
}

.genre-chip:hover, .genre-chip.active {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.genre-chip.active {
    background: var(--accent-cyan);
    color: var(--bg-dark);
}

/* Year Range */
.year-range {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.year-range input {
    width: 100px;
}

.decade-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.decade-chip {
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.3s;
}

.decade-chip:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

/* Two column layout */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

@media (max-width: 500px) {
    .form-row { grid-template-columns: 1fr; }
}

/* Volume Control */
.volume-control {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.volume-slider {
    width: 100px;
    height: 6px;
    -webkit-appearance: none;
    background: var(--bg-dark);
    border-radius: 3px;
    border: 1px solid var(--border-color);
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--accent-cyan);
    border-radius: 50%;
    cursor: pointer;
}

.volume-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--accent-cyan);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.volume-value {
    font-size: 0.75rem;
    color: var(--text-secondary);
    min-width: 35px;
}

/* Game Area - Progress Bar */
.progress-bar {
    height: 5px;
    background: var(--bg-dark);
    border-radius: 3px;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-pink));
    transition: width 0.5s;
}

/* Question Header */
.question-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.score-display {
    display: flex;
    gap: 1.5rem;
}

.score-item {
    text-align: center;
}

.score-label {
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.score-value {
    font-family: 'Dela Gothic One', cursive;
    font-size: 1.3rem;
    color: var(--accent-cyan);
}

.streak-value {
    color: var(--accent-yellow);
}

/* Audio Player */
.audio-player {
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    margin: 1.5rem 0;
}

.audio-visualizer {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 3px;
    height: 50px;
    margin-bottom: 1rem;
}

.viz-bar {
    width: 6px;
    background: linear-gradient(to top, var(--accent-cyan), var(--accent-pink));
    border-radius: 3px;
    animation: vizPulse 0.5s ease-in-out infinite;
}

@keyframes vizPulse {
    0%, 100% { height: 20%; }
    50% { height: 100%; }
}

.play-btn {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    transition: all 0.3s;
    box-shadow: 0 0 30px rgba(255, 45, 106, 0.3);
}

.play-btn:hover {
    transform: scale(1.1);
}

.play-btn svg {
    width: 28px;
    height: 28px;
    fill: white;
}

.timer {
    font-family: 'Dela Gothic One', cursive;
    font-size: 1.5rem;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
}

.volume-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
    display: flex;
    align-items: center;
}

.volume-btn svg {
    width: 24px;
    height: 24px;
    fill: var(--text-secondary);
    transition: fill 0.3s;
}

.volume-btn:hover svg {
    fill: var(--accent-cyan);
}

/* Options Grid */
.options-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

@media (max-width: 600px) {
    .options-grid { grid-template-columns: 1fr; }
}

.option-btn {
    padding: 1rem;
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
    text-align: left;
}

.option-btn:hover:not(:disabled) {
    border-color: var(--accent-cyan);
    transform: translateX(5px);
}

.option-btn.correct {
    border-color: var(--success);
    background: rgba(0, 245, 160, 0.15);
}

.option-btn.incorrect {
    border-color: var(--error);
    background: rgba(255, 71, 87, 0.15);
}

.option-title {
    font-weight: bold;
    margin-bottom: 0.2rem;
}

.option-artist {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Answer Input */
.answer-input {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    background: var(--bg-dark);
    border: 3px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: inherit;
}

.answer-input:focus {
    border-color: var(--accent-pink);
}

/* Feedback Popup */
.overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 99;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

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

.feedback {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: var(--bg-card);
    border: 3px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s;
    min-width: 300px;
}

.feedback.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    pointer-events: auto;
}

.feedback.correct {
    border-color: var(--success);
}

.feedback.incorrect {
    border-color: var(--error);
}

.feedback-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.feedback-title {
    font-family: 'Dela Gothic One', cursive;
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.feedback-answer {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.feedback-year {
    color: var(--accent-cyan);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

/* Rating Buttons */
.rating-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.rate-btn {
    padding: 0.5rem 1.5rem;
    border: 2px solid var(--border-color);
    border-radius: 20px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s;
}

.rate-btn:hover {
    transform: scale(1.1);
}

.rate-btn.up:hover {
    border-color: var(--success);
    color: var(--success);
}

.rate-btn.down:hover {
    border-color: var(--error);
    color: var(--error);
}

.rate-btn.selected {
    background: var(--bg-hover);
}

/* Results */
.results-header {
    text-align: center;
    padding: 1.5rem 0;
}

.results-emoji {
    font-size: 4rem;
    margin-bottom: 0.5rem;
}

.results-title {
    font-family: 'Dela Gothic One', cursive;
    font-size: 1.5rem;
}

.results-score {
    font-size: 2.5rem;
    font-family: 'Dela Gothic One', cursive;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.results-percentage {
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* History Item */
.history-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.history-status {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.history-status.correct {
    background: rgba(0, 245, 160, 0.2);
}

.history-status.incorrect {
    background: rgba(255, 71, 87, 0.2);
}

.history-info {
    flex: 1;
}

.history-song {
    font-weight: bold;
    font-size: 0.9rem;
}

.history-answer {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Auth Modal */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    width: 100%;
    max-width: 400px;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 1.5rem;
}

.modal-tab {
    flex: 1;
    padding: 0.75rem;
    background: var(--bg-dark);
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: inherit;
}

.modal-tab:first-child {
    border-radius: 8px 0 0 8px;
}

.modal-tab:last-child {
    border-radius: 0 8px 8px 0;
}

.modal-tab.active {
    background: var(--accent-pink);
    color: white;
}

.auth-error {
    background: rgba(255, 71, 87, 0.2);
    border: 1px solid var(--error);
    color: var(--error);
    padding: 0.75rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

/* Hidden */
.hidden {
    display: none !important;
}

/* Checkbox */
input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--accent-cyan);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .score-display {
        gap: 1rem;
    }
}