@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

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

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #0d1117;
    --bg-tertiary: #151b23;
    --accent: #00e5ff;
    --accent-light: #6fefff;
    --accent-glow: rgba(0, 229, 255, 0.4);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: rgba(0, 229, 255, 0.1);
    --border-light: rgba(0, 229, 255, 0.2);
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    background-image: 
        radial-gradient(ellipse at top, rgba(0, 229, 255, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(0, 229, 255, 0.03) 0%, transparent 50%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-primary);
    line-height: 1.5;
}

#game-container {
    position: relative;
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid var(--border);
    box-shadow: 
        0 25px 50px -12px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.02) inset;
    max-width: 1200px;
    width: 95vw;
}

.screen {
    display: none;
}

.screen.active {
    display: block;
}

/* Menu Screen - 3 Column Layout */
#menu {
    grid-template-columns: 280px 1fr 280px;
    gap: 32px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    align-items: start;
}

#menu.active {
    display: grid;
}

.menu-left,
.menu-right {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.menu-left h3,
.menu-right h3 {
    font-size: 0.8em;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.menu-center {
    text-align: center;
}

.game-logo {
    max-width: 320px;
    width: 100%;
    height: auto;
    margin-bottom: 32px;
    filter: drop-shadow(0 20px 40px rgba(0, 229, 255, 0.25));
}

.menu-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
    max-width: 260px;
    margin-left: auto;
    margin-right: auto;
}

.menu-btn {
    padding: 14px 28px;
    font-size: 0.9em;
    font-weight: 500;
    font-family: 'Outfit', sans-serif;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.menu-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--accent-glow);
}

.menu-btn:active {
    transform: translateY(0);
}

/* Image button styling */
.menu-btn-img {
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    display: block;
    width: 100%;
    max-width: 280px;
    margin: 0 auto;
}

.menu-btn-img img {
    width: 100%;
    height: auto;
    display: block;
    filter: brightness(0.95);
    transition: all 0.2s ease;
    border-radius: 12px;
}

.menu-btn-img:hover img {
    filter: brightness(1.1);
    transform: translateY(-3px);
}

.menu-btn-img:active img {
    transform: translateY(-1px);
}

/* Panels */
#controls-info,
#settings-panel,
#themes-panel {
    text-align: left;
    background: var(--bg-tertiary);
    padding: 24px;
    border-radius: 16px;
    margin-top: 24px;
    border: 1px solid var(--border);
}

#controls-info p {
    font-size: 0.95em;
    margin: 12px 0;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-secondary);
}

#settings-panel h3,
#themes-panel h3 {
    margin-bottom: 20px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 1em;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.setting-item {
    margin: 16px 0;
}

.setting-item label {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    font-size: 0.95em;
    color: var(--text-secondary);
}

.setting-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--accent);
}

.setting-item > label[for] {
    display: block;
    margin-bottom: 10px;
    cursor: default;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 16px;
}

.slider-container input[type="range"] {
    flex: 1;
    height: 4px;
    background: var(--bg-primary);
    border-radius: 4px;
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s;
}

.slider-container input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 12px var(--accent-glow);
}

.slider-container input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

#opacity-value,
#volume-value {
    min-width: 45px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85em;
    color: var(--text-muted);
}

.settings-divider {
    height: 1px;
    background: var(--border);
    margin: 24px 0;
}

.music-select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    font-size: 0.95em;
    cursor: pointer;
    transition: all 0.2s;
}

.music-select:hover {
    border-color: var(--border-light);
}

.music-select:focus {
    outline: none;
    border-color: var(--accent);
}

.music-select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* Keybindings */
.keybind-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 12px 0;
    padding: 12px 16px;
    background: var(--bg-primary);
    border-radius: 10px;
}

.keybind-item label {
    font-size: 0.9em;
    color: var(--text-secondary);
}

.keybind-btn {
    padding: 8px 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85em;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 100px;
    text-align: center;
}

.keybind-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
}

.keybind-btn.waiting,
.gamepad-btn.waiting {
    background: var(--warning);
    border-color: var(--warning);
    color: var(--bg-primary);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.gamepad-btn {
    padding: 8px 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85em;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 100px;
    text-align: center;
}

.gamepad-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
}

.gamepad-status {
    font-size: 0.85em;
    color: var(--text-muted);
    margin-bottom: 16px;
    padding: 8px 12px;
    background: var(--bg-primary);
    border-radius: 8px;
    text-align: center;
}

.gamepad-status.connected {
    color: var(--success);
}

#reset-controls {
    margin-top: 20px;
    width: 100%;
}

/* Theme Grid */
.theme-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.theme-option {
    padding: 14px;
    font-size: 0.85em;
    font-weight: 500;
    font-family: 'Outfit', sans-serif;
    background: var(--bg-primary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.theme-option:hover {
    border-color: var(--border-light);
    color: var(--text-primary);
}

.theme-option.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.theme-name {
    font-size: 0.8em;
}

.theme-preview {
    display: flex;
    gap: 3px;
    justify-content: center;
}

.theme-preview .color-swatch {
    width: 14px;
    height: 14px;
    border-radius: 4px;
}

/* Leaderboards */
.leaderboard-section {
    background: var(--bg-tertiary);
    padding: 16px;
    border-radius: 12px;
    border: 1px solid var(--border);
}

.leaderboard-section h3 {
    font-size: 0.75em;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

#personal-history,
#global-scores,
#global-lines {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 400px;
    overflow-y: auto;
}

#personal-history::-webkit-scrollbar,
#global-scores::-webkit-scrollbar,
#global-lines::-webkit-scrollbar {
    width: 4px;
}

#personal-history::-webkit-scrollbar-thumb,
#global-scores::-webkit-scrollbar-thumb,
#global-lines::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 4px;
}

#personal-history li,
#global-scores li,
#global-lines li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 4px;
    border-bottom: 1px solid var(--border);
    font-size: 0.8em;
}

#personal-history li:last-child,
#global-scores li:last-child,
#global-lines li:last-child {
    border-bottom: none;
}

#personal-history li.loading,
#global-scores li.loading,
#global-lines li.loading {
    color: var(--text-muted);
    justify-content: center;
    padding: 16px;
}

.lb-rank {
    font-weight: 600;
    color: var(--text-muted);
    min-width: 20px;
    font-size: 0.85em;
}

.lb-rank.gold { color: #fbbf24; }
.lb-rank.silver { color: #94a3b8; }
.lb-rank.bronze { color: #d97706; }

.lb-name {
    flex: 1;
    margin-left: 8px;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.lb-score,
.lb-lines {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
    color: var(--accent);
    font-size: 0.9em;
}

/* Personal history specific */
.ph-score {
    color: var(--accent);
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
}

.ph-lines {
    color: var(--text-muted);
    font-size: 0.85em;
    margin-left: 8px;
}

/* Auth Section */
#auth-status {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

#user-display {
    display: block;
    margin-bottom: 12px;
    color: var(--text-muted);
    font-size: 0.9em;
}

.small-btn {
    padding: 10px 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    cursor: pointer;
    font-family: 'Outfit', sans-serif;
    font-size: 0.85em;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.small-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
}

/* Auth Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal.hidden {
    display: none !important;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px;
    max-width: 400px;
    width: 90%;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.close-modal {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5em;
    cursor: pointer;
    transition: all 0.2s;
    line-height: 1;
}

.close-modal:hover {
    color: var(--text-primary);
}

#auth-title {
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 24px;
    font-weight: 500;
}

#auth-form input {
    width: 100%;
    padding: 14px 16px;
    margin-bottom: 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    font-size: 0.95em;
}

#auth-form input:focus {
    outline: none;
    border-color: var(--accent);
}

#auth-form input::placeholder {
    color: var(--text-muted);
}

.modal-btn {
    width: 100%;
    padding: 14px;
    margin: 6px 0;
    background: var(--accent);
    border: none;
    border-radius: 10px;
    color: white;
    font-family: 'Outfit', sans-serif;
    font-size: 0.95em;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.modal-btn:hover {
    background: var(--accent-light);
    transform: translateY(-1px);
}

.modal-btn.secondary {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
}

.modal-btn.secondary:hover {
    background: var(--bg-primary);
}

.error-msg {
    color: var(--danger);
    font-size: 0.9em;
    margin-bottom: 12px;
    text-align: center;
}

#high-scores {
    margin: 24px 0;
    padding: 20px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    border: 1px solid var(--border);
}

#high-scores h3 {
    color: var(--text-primary);
    margin-bottom: 16px;
    font-weight: 500;
    font-size: 0.95em;
}

#scores-list {
    list-style-position: inside;
    color: var(--text-secondary);
}

#scores-list li {
    padding: 6px 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85em;
}

.hidden {
    display: none !important;
}

/* ==================== */
/* GAME SCREEN - CLEAN  */
/* ==================== */

#game {
    display: none;
    align-items: start;
    justify-content: center;
    gap: 32px;
    padding: 20px;
}

#game.active {
    display: flex;
}

/* Left sidebar - Stats */
.game-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-width: 140px;
}

.info-box {
    background: var(--bg-tertiary);
    padding: 16px 20px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border);
}

.info-box h3 {
    font-size: 0.7em;
    margin-bottom: 6px;
    letter-spacing: 2px;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
}

.info-box p {
    font-size: 1.5em;
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
}

/* Game Canvas */
#tetris {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Right sidebar - Next Piece */
#next-piece-container {
    text-align: center;
    min-width: 120px;
}

#next-piece-container h3 {
    font-size: 0.7em;
    margin-bottom: 12px;
    letter-spacing: 2px;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
}

#next-piece {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 12px;
}

/* ==================== */
/* GAME OVER SCREEN     */
/* ==================== */

#game-over {
    display: none;
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
    padding: 40px 20px;
}

#game-over.active {
    display: block;
}

.game-over-img {
    max-width: 350px;
    width: 90%;
    height: auto;
    margin-bottom: 32px;
    opacity: 0.9;
}

.final-score {
    font-size: 1.1em;
    margin-bottom: 32px;
    color: var(--text-secondary);
}

.final-score span {
    display: block;
    font-size: 3em;
    font-weight: 700;
    color: var(--accent);
    font-family: 'JetBrains Mono', monospace;
    margin-top: 8px;
}

#game-over .menu-btn {
    display: block;
    width: 100%;
    max-width: 280px;
    margin: 12px auto;
}

/* Pause Overlay */
#pause-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--bg-secondary);
    padding: 48px 64px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid var(--border);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    z-index: 100;
}

#pause-overlay h2 {
    font-size: 2em;
    margin-bottom: 12px;
    letter-spacing: 4px;
    color: var(--text-primary);
    font-weight: 600;
}

#pause-overlay p {
    font-size: 0.95em;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 1100px) {
    #menu {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
    
    .menu-left,
    .menu-right {
        display: none;
    }
    
    .menu-center {
        order: 1;
    }
}

@media (max-width: 900px) {
    .theme-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    #game {
        flex-direction: column;
        align-items: center;
    }
    
    .game-info {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 600px) {
    #game-container {
        padding: 20px;
        border-radius: 16px;
    }
    
    .theme-grid {
        grid-template-columns: 1fr 1fr;
    }
}