:root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #ffffff;
    --accent-color: #4caf50;
    --error-color: #f44336;
    --warning-color: #ff9800;
    --code-bg: #2d2d2d;
    --border-color: #333;
    --font-family: 'Outfit', sans-serif;
    --code-font: 'JetBrains Mono', monospace;
    --maze-wall: #2d2d2d;
    --maze-path: #1e1e1e;
    --maze-start: #4caf50;
    --maze-end: #f44336;
    --maze-visited: #2196f3;
    --maze-path-found: #ff9800;
}

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

body {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: var(--text-color);
    font-family: var(--font-family);
    min-height: 100vh;
    padding: 1rem;
}

.game-container {
    max-width: 1400px;
    margin: 0 auto;
}

header {
    margin-bottom: 2rem;
}

.back-btn {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    display: inline-block;
    transition: opacity 0.2s;
}

.back-btn:hover {
    opacity: 0.7;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    background: linear-gradient(135deg, #4caf50, #81c784);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stats-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: #aaa;
    margin-bottom: 0.5rem;
}

.stat-value {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-color);
}

.game-area {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.maze-section {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

.algorithm-selector {
    margin-bottom: 1.5rem;
}

.algorithm-selector h3 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.algorithm-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.algo-btn {
    flex: 1;
    min-width: 150px;
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--code-bg);
    color: var(--text-color);
    font-family: var(--font-family);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.algo-btn:hover {
    border-color: var(--accent-color);
    background: rgba(76, 175, 80, 0.1);
}

.algo-btn.active {
    border-color: var(--accent-color);
    background: var(--accent-color);
    color: white;
}

.maze-container {
    background: var(--code-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 500px;
}

.maze-legend {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

#maze-canvas {
    background: var(--maze-path);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    max-width: 100%;
    height: auto;
}

.controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.info-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.info-card h3 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.algorithm-info p {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.path-info p {
    margin-bottom: 0.5rem;
    font-family: var(--code-font);
}

.path-info span {
    color: var(--accent-color);
    font-weight: 600;
}

.info-card ul {
    list-style: none;
    padding-left: 0;
}

.info-card li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.info-card li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.btn-primary, .btn-secondary {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-family: var(--font-family);
}

.btn-primary {
    background: var(--accent-color);
    color: white;
}

.btn-primary:hover {
    background: #45a049;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(76, 175, 80, 0.4);
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--text-color);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--accent-color);
    background: rgba(76, 175, 80, 0.1);
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.modal-content h2 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.modal-content p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.tutorial-content {
    text-align: left;
    margin: 1.5rem 0;
}

.tutorial-content h3 {
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
    text-align: left;
}

.tutorial-content ol,
.tutorial-content ul {
    margin: 0.5rem 0;
}

.tutorial-content li {
    margin: 0.5rem 0;
    line-height: 1.6;
}

.hint {
    color: #aaa;
    font-size: 0.9rem;
}

.final-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin: 1.5rem 0;
}

.final-stat {
    background: var(--code-bg);
    padding: 1rem;
    border-radius: 8px;
}

.final-label {
    display: block;
    font-size: 0.9rem;
    color: #aaa;
    margin-bottom: 0.5rem;
}

.final-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
}

@media (max-width: 968px) {
    .game-area {
        grid-template-columns: 1fr;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .maze-container {
        min-height: 400px;
    }
}