:root {
    --primary-color: #4361ee;
    --secondary-color: #3a0ca3;
    --accent-color: #7209b7;
    --text-color: #2b2d42;
    --bg-color: #f8f9fa;
    --panel-bg: #ffffff;
    --border-color: #dee2e6;
    --success-color: #06d6a0;
}

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

body {
    font-family: monospace;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

header h1 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 2.5rem;
}

header p {
    font-size: 1rem;
    color: var(--text-color);
    opacity: 0.8;
}

.app-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    background-color: var(--panel-bg);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    padding: 2rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .app-container {
        flex-direction: row;
    }
}

.controls-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    min-width: 250px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

label {
    font-weight: bold;
    font-size: 0.9rem;
    color: var(--text-color);
}

input, select {
    padding: 10px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-family: monospace;
    font-size: 0.9rem;
    transition: border-color 0.3s ease;
    background-color: var(--bg-color);
}

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

input[type="number"] {
    width: 100%;
}

select {
    width: 100%;
    cursor: pointer;
}

.color-inputs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.color-input input[type="color"] {
    width: 40px;
    height: 40px;
    padding: 2px;
    border-radius: 6px;
    cursor: pointer;
    background: transparent;
}

#addColor {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    background-color: var(--bg-color);
    border: 2px dashed var(--border-color);
    color: var(--text-color);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

#addColor:hover {
    background-color: var(--border-color);
}

.color-count {
    font-size: 0.8rem;
    color: var(--text-color);
    opacity: 0.7;
    margin-top: 0.5rem;
}

button {
    font-family: monospace;
    padding: 12px 20px;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.primary-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

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

.secondary-btn:hover {
    background-color: var(--border-color);
}
.output-panel {
    flex: 2;
    display: flex;
    justify-content: center;
    align-items: center;
}

.pattern-container {
    overflow: auto;
    padding: 20px;
    max-width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--bg-color);
    border-radius: 8px;
    min-height: 300px;
}

#pattern {
    display: grid;
    border: 1px solid var(--border-color);
}

.pixel {
    transition: background-color 0.3s ease;
}