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

:root {
    --primary-color: #2196F3;
    --text-color: #333333;
    --border-color: #E0E0E0;
    --background-color: #F5F5F5;
    --card-background: #FFFFFF;
    --hover-color: #F0F0F0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.color-picker {
    background: var(--card-background);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    padding: 24px;
}

.color-display {
    display: flex;
    gap: 24px;
    margin-bottom: 24px;
}

.color-preview {
    width: 200px;
    height: 200px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: #000000;
}

.color-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.color-format {
    display: flex;
    gap: 8px;
}

.color-format select {
    width: 100px;
}

.color-format input {
    flex: 1;
}

.color-values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.value-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.value-group label {
    font-size: 14px;
    color: var(--text-color);
}

input[type="range"] {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    background: var(--border-color);
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
}

input[type="number"] {
    width: 60px;
    text-align: center;
}

input, select, button {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    background: var(--card-background);
}

button {
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover {
    background-color: var(--hover-color);
}

.color-tools {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.tool-section {
    background: var(--card-background);
    border-radius: 8px;
    padding: 16px;
    border: 1px solid var(--border-color);
}

.tool-section h3 {
    margin-bottom: 12px;
    font-size: 16px;
}

.shades-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
}

.shade-box {
    aspect-ratio: 1;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.2s;
}

.shade-box:hover {
    transform: scale(1.05);
}

.complementary-colors,
.analogous-colors {
    display: flex;
    gap: 8px;
}

.color-box {
    flex: 1;
    aspect-ratio: 1;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.2s;
}

.color-box:hover {
    transform: scale(1.05);
}

.palette-section {
    background: var(--card-background);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.palette-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.saved-colors {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 12px;
}

.saved-color {
    aspect-ratio: 1;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.2s;
    position: relative;
}

.saved-color:hover {
    transform: scale(1.05);
}

.saved-color .remove {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    border: 1px solid var(--border-color);
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    cursor: pointer;
}

.saved-color:hover .remove {
    display: flex;
}

.color-schemes {
    background: var(--card-background);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.scheme-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.scheme-colors {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
}

.scheme-color {
    aspect-ratio: 1;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.2s;
}

.scheme-color:hover {
    transform: scale(1.05);
}

@media (max-width: 768px) {
    .container {
        padding: 12px;
    }

    .color-display {
        flex-direction: column;
    }

    .color-preview {
        width: 100%;
        height: 150px;
    }

    .color-values {
        grid-template-columns: 1fr;
    }

    .scheme-colors {
        grid-template-columns: repeat(3, 1fr);
    }
}