:root {
    --primary-bg: #f5f5f5;
    --text-color: #333;
    --header-bg: #ffffff;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --color-height: 140px;
    --control-bg: #2c3e50;
    --control-hover: #34495e;
    --notification-bg: #2ecc71;
    --dialog-bg: #ffffff;
    --dialog-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] {
    --primary-bg: #1a1a1a;
    --text-color: #ffffff;
    --header-bg: #2d2d2d;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    --control-bg: #34495e;
    --control-hover: #2c3e50;
    --dialog-bg: #2d2d2d;
    --dialog-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--primary-bg);
    color: var(--text-color);
    transition: var(--transition);
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0px;
}

.app-header {
    background-color: var(--header-bg);
    padding: 25px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.header-left h1 {
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: 5px;
    font-weight: 700;
}

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

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.theme-toggle {
    position: relative;
    width: 60px;
    height: 30px;
}

.theme-switch {
    opacity: 0;
    position: absolute;
    width: 0;
    height: 0;
}

.theme-label {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--control-bg);
    border-radius: 30px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10px;
}

.theme-label i {
    font-size: 14px;
    color: #fff;
}

.theme-switch:checked + .theme-label {
    background-color: var(--control-bg);
}

.theme-switch:checked + .theme-label i.fa-sun {
    opacity: 0;
}

.theme-switch:not(:checked) + .theme-label i.fa-moon {
    opacity: 0;
}

.controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

.control-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    background-color: var(--control-bg);
    color: white;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

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

.control-btn i {
    font-size: 1.1rem;
}

.color-picker {
    width: 40px;
    height: 40px;
    padding: 0;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    background: none;
    transition: var(--transition);
}

.color-picker:hover {
    transform: scale(1.1);
}

.color-picker::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker::-webkit-color-swatch {
    border: none;
    border-radius: 8px;
}

.colors-container {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 30px;
    max-width: 1200px;
    margin: 0 auto 30px;
}

.color {
    position: relative;
    height: 120px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

.color:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.color-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    transform: translateY(100px);
    transition: var(--transition);
    backdrop-filter: blur(5px);
}

.color:hover .color-info {
    transform: translateY(0);
}

.color-hex {
    font-size: 0.9rem;
    font-weight: bold;
    margin-bottom: 5px;
    letter-spacing: 1px;
}

.color-name {
    font-size: 0.8rem;
    opacity: 0.9;
    margin-bottom: 5px;
}

.color-rgb {
    font-size: 0.8rem;
    opacity: 0.9;
}

.copy-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 8px;
    padding: 10px;
    color: white;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    backdrop-filter: blur(5px);
}

.color:hover .copy-btn {
    opacity: 1;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--notification-bg);
    color: white;
    padding: 15px 25px;
    border-radius: 8px;
    display: none;
    animation: slideIn 0.3s ease;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@media (max-width: 1200px) {
    .colors-container {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
}

@media (max-width: 768px) {
    .app-header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .header-right {
        flex-direction: column;
        width: 100%;
    }

    .controls {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }

    .color {
        height: calc(var(--color-height) * 0.8);
    }
}

@media (max-width: 480px) {
    .control-btn span {
        display: none;
    }

    .control-btn {
        padding: 12px;
    }

    .color-picker {
        width: 35px;
        height: 35px;
    }

    .header-left h1 {
        font-size: 2rem;
    }

    .colors-container {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
}

.color-picker-dialog {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.color-picker-dialog.show {
    display: flex;
}

.dialog-content {
    background-color: var(--dialog-bg);
    border-radius: 15px;
    padding: 25px;
    width: 90%;
    max-width: 400px;
    box-shadow: var(--dialog-shadow);
    transform: translateY(20px);
    opacity: 0;
    transition: var(--transition);
}

.color-picker-dialog.show .dialog-content {
    transform: translateY(0);
    opacity: 1;
}

.dialog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.dialog-header h2 {
    color: var(--text-color);
    font-size: 1.5rem;
    font-weight: 600;
}

.close-dialog {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 5px;
    transition: var(--transition);
}

.close-dialog:hover {
    transform: rotate(90deg);
}

.color-picker-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 20px;
}

.color-picker {
    width: 100%;
    height: 50px;
    padding: 0;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    background: none;
    transition: var(--transition);
}

.color-picker::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker::-webkit-color-swatch {
    border: none;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.color-preview {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 15px;
    background-color: var(--header-bg);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.preview-color {
    width: 60px;
    height: 60px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.preview-info {
    flex: 1;
}

.preview-hex {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-color);
    margin-bottom: 5px;
}

.preview-rgb {
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.8;
}

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.dialog-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.dialog-btn.cancel {
    background-color: transparent;
    color: var(--text-color);
}

.dialog-btn.cancel:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

.dialog-btn.apply {
    background-color: var(--control-bg);
    color: white;
}

.dialog-btn.apply:hover {
    background-color: var(--control-hover);
    transform: translateY(-2px);
}