:root {
    --bg-color: #f4f7f6;
    --container-bg: #ffffff;
    --primary-color: #3498db;
    --primary-hover: #2980b9;
    --accent-color: #e74c3c;
    --accent-hover: #c0392b;
    --secondary-color: #2ecc71;
    --text-color: #2c3e50;
    --border-color: #dcdde1;
    --wall-color: #2c3e50;
    --path-color: #ecf0f1;
    --start-color: #2ecc71;
    --end-color: #e74c3c;
    --solution-color: #f1c40f;
    --current-cell-color: #9b59b6;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    background-color: var(--container-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    max-width: 900px;
    width: 100%;
    text-align: center;
}

h1 {
    margin-bottom: 25px;
    font-weight: 300;
    color: var(--text-color);
}

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    margin-bottom: 30px;
    padding: 20px;
    background-color: #f9f9f9;
    border-radius: 8px;
}

.control-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
}

label {
    font-size: 0.9rem;
    font-weight: 600;
}

input, select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

input:focus, select:focus {
    border-color: var(--primary-color);
}

.button-group {
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

button {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    color: white;
}

button:active {
    transform: translateY(1px);
}

#generate-btn {
    background-color: var(--primary-color);
}

#generate-btn:hover {
    background-color: var(--primary-hover);
}

#solve-btn {
    background-color: var(--secondary-color);
}

#solve-btn:hover {
    background-color: #27ae60;
}

#reset-btn {
    background-color: var(--accent-color);
}

#reset-btn:hover {
    background-color: var(--accent-hover);
}

button:disabled {
    background-color: #bdc3c7;
    cursor: not-allowed;
}

#maze-container {
    margin: 0 auto;
    display: flex;
    justify-content: center;
    background-color: var(--wall-color);
    padding: 5px;
    border-radius: 4px;
    max-width: 100%;
    overflow: auto;
}

canvas {
    display: block;
    max-width: 100%;
    height: auto;
}

.status {
    margin-top: 20px;
    font-size: 1.1rem;
    font-weight: 500;
}

#status-text {
    color: var(--text-color);
}

@media (max-width: 600px) {
    .controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    button {
        width: 100%;
    }
}