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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    max-width: 1000px;
    width: 100%;
}

.game-header {
    text-align: center;
    margin-bottom: 30px;
}

.game-header h1 {
    color: #fff;
    font-size: 3em;
    text-shadow: 
        0 0 10px rgba(255, 255, 255, 0.8),
        0 0 20px rgba(255, 255, 255, 0.6),
        0 0 30px rgba(255, 255, 255, 0.4);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 
            0 0 10px rgba(255, 255, 255, 0.8),
            0 0 20px rgba(255, 255, 255, 0.6),
            0 0 30px rgba(255, 255, 255, 0.4);
    }
    to {
        text-shadow: 
            0 0 20px rgba(255, 255, 255, 1),
            0 0 30px rgba(255, 255, 255, 0.8),
            0 0 40px rgba(255, 255, 255, 0.6),
            0 0 50px rgba(255, 200, 255, 0.4);
    }
}

.game-wrapper {
    display: flex;
    gap: 30px;
    justify-content: center;
    align-items: flex-start;
    flex-wrap: wrap;
}

.info-panel {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.2);
    min-width: 200px;
}

.info-panel h2 {
    color: #fff;
    font-size: 1.2em;
    margin-bottom: 10px;
    text-align: center;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.score-container,
.level-container,
.lines-container {
    margin-bottom: 30px;
}

.score-value,
.level-value,
.lines-value {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: #fff;
    font-size: 2.5em;
    font-weight: bold;
    text-align: center;
    padding: 15px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.next-container {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 15px;
}

#nextCanvas {
    display: block;
    margin: 0 auto;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
}

.game-canvas-wrapper {
    position: relative;
}

.game-logo {
    position: absolute;
    top: 8px;
    left: 8px;
    height: 40px;
    z-index: 10;
}

#gameCanvas {
    background: rgba(0, 0, 0, 0.5);
    border-radius: 20px;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.5),
        inset 0 0 20px rgba(255, 255, 255, 0.1);
    border: 3px solid rgba(255, 255, 255, 0.3);
}

.game-over-screen {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.9);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    display: none;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.game-over-screen.show {
    display: block;
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.game-over-screen h2 {
    color: #f5576c;
    font-size: 2.5em;
    margin-bottom: 20px;
    text-shadow: 0 0 10px rgba(245, 87, 108, 0.5);
}

.game-over-screen p {
    color: #fff;
    font-size: 1.5em;
    margin-bottom: 30px;
}

#restartButton {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: #fff;
    border: none;
    padding: 15px 40px;
    font-size: 1.2em;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(245, 87, 108, 0.4);
    transition: all 0.3s ease;
}

#restartButton:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 87, 108, 0.6);
}

#restartButton:active {
    transform: translateY(0);
}

.controls {
    margin-top: 40px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.controls h3 {
    color: #fff;
    text-align: center;
    font-size: 1.5em;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.control-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.control-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.05);
    padding: 10px 20px;
    border-radius: 10px;
    color: #fff;
}

.key {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    padding: 8px 15px;
    border-radius: 8px;
    font-weight: bold;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    min-width: 50px;
    text-align: center;
}

/* Pause button (top-right of canvas) */
.pause-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 1em;
    cursor: pointer;
    z-index: 10;
    transition: all 0.2s ease;
}

.pause-btn:hover {
    background: rgba(0, 0, 0, 0.85);
    border-color: rgba(255, 255, 255, 0.9);
}

/* Pause overlay */
.pause-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.88);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    display: none;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.3);
    z-index: 20;
}

.pause-overlay.show {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

.pause-overlay h2 {
    color: #fff;
    font-size: 2em;
    margin-bottom: 20px;
}

#resumeButton {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: #fff;
    border: none;
    padding: 15px 40px;
    font-size: 1.2em;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(245, 87, 108, 0.4);
    transition: all 0.3s ease;
}

#resumeButton:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 87, 108, 0.6);
}

/* Score history */
.history-container {
    margin-top: 20px;
}

.score-history {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    padding: 8px;
    min-height: 40px;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #fff;
    padding: 5px 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.85em;
}

.history-item:last-child {
    border-bottom: none;
}

.history-rank {
    font-weight: bold;
    color: #f7dc6f;
    min-width: 18px;
}

.history-score {
    font-weight: bold;
    flex: 1;
    text-align: center;
}

.history-date {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.8em;
}

/* Game over history */
.game-over-history {
    margin: 15px 0;
    text-align: left;
}

.game-over-history h3 {
    color: #f093fb;
    font-size: 1em;
    margin-bottom: 8px;
    text-align: center;
}

/* Mobile touch controls */
.mobile-controls {
    display: none;
    margin-top: 20px;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.mobile-row {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.mobile-btn {
    background: linear-gradient(135deg, rgba(240, 147, 251, 0.85) 0%, rgba(245, 87, 108, 0.85) 100%);
    color: #fff;
    border: none;
    padding: 12px 16px;
    font-size: 1.4em;
    border-radius: 14px;
    cursor: pointer;
    min-width: 68px;
    min-height: 68px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.1s ease;
    touch-action: none;
    user-select: none;
    line-height: 1.2;
}

.mobile-btn:active {
    transform: scale(0.92);
}

.mobile-btn small {
    display: block;
    font-size: 0.45em;
    opacity: 0.9;
}

@media (max-width: 768px) {
    .game-header h1 {
        font-size: 2em;
    }
    
    .game-wrapper {
        flex-direction: column;
        align-items: center;
    }
    
    .info-panel {
        width: 100%;
        max-width: 320px;
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        padding: 15px;
    }

    .info-panel h2 {
        font-size: 1em;
        margin-bottom: 5px;
    }

    .score-container,
    .level-container,
    .lines-container {
        margin-bottom: 0;
        flex: 1;
        min-width: 80px;
    }

    .score-value,
    .level-value,
    .lines-value {
        font-size: 1.8em;
        padding: 10px;
    }

    .next-container {
        flex-basis: 100%;
    }

    .history-container {
        flex-basis: 100%;
        margin-top: 0;
    }

    .mobile-controls {
        display: flex;
    }
}

@media (prefers-reduced-motion: reduce) {
    .game-header h1 {
        animation: none;
    }
    
    .info-panel,
    .controls {
        backdrop-filter: none;
        background: rgba(255, 255, 255, 0.15);
    }
    
    .game-over-screen.show {
        animation: none;
    }
}