/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --color-primary: #F6DFEB;
    --color-secondary: #E4C1F9;
    --color-accent: #D0F4DE;
    --color-highlight: #FCF6BD;
    --color-warm: #FFB7C5;
    
    /* Cyberpunk Theme Colors */
    --cyber-dark: #0a0a0a;
    --cyber-darker: #050505;
    --cyber-neon-pink: #ff006e;
    --cyber-neon-blue: #00f5ff;
    --cyber-neon-green: #39ff14;
    --cyber-neon-purple: #bf00ff;
    --cyber-gray: #1a1a1a;
    --cyber-light-gray: #2a2a2a;
    
    /* Typography */
    --font-family: 'Courier New', monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Borders */
    --border-radius: 0.375rem;
    --border-width: 2px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(255, 0, 110, 0.1);
    --shadow-md: 0 4px 6px rgba(255, 0, 110, 0.1);
    --shadow-lg: 0 10px 15px rgba(255, 0, 110, 0.1);
    --shadow-neon: 0 0 20px rgba(255, 0, 110, 0.5);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Styles */
body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, var(--cyber-dark) 0%, var(--cyber-darker) 100%);
    color: var(--color-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255, 0, 110, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 245, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(57, 255, 20, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* App Container */
.app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
.header {
    background: rgba(26, 26, 26, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: var(--border-width) solid var(--cyber-neon-pink);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
}

.header__title {
    font-size: var(--font-size-3xl);
    font-weight: bold;
    color: var(--cyber-neon-pink);
    text-shadow: 0 0 10px var(--cyber-neon-pink);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.header__icon {
    font-size: var(--font-size-2xl);
    animation: pulse 2s infinite;
}

.header__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-secondary);
    opacity: 0.8;
}

/* Main Content */
.main {
    flex: 1;
    padding: var(--spacing-2xl) 0;
}

.main__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
}

/* Section Base Styles */
section {
    background: rgba(26, 26, 26, 0.8);
    border: var(--border-width) solid var(--cyber-neon-blue);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--cyber-neon-blue) 50%, 
        transparent 100%);
    animation: scanline 3s linear infinite;
}

section h2 {
    font-size: var(--font-size-2xl);
    color: var(--cyber-neon-blue);
    text-shadow: 0 0 10px var(--cyber-neon-blue);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Palette Styles */
.palette__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.palette__item {
    aspect-ratio: 1;
    border-radius: var(--border-radius);
    border: var(--border-width) solid var(--cyber-neon-green);
    cursor: grab;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    user-select: none;
}

.palette__item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-neon);
    border-color: var(--cyber-neon-pink);
}

.palette__item:active {
    cursor: grabbing;
    transform: scale(0.95);
}

.palette__item.dragging {
    opacity: 0.5;
    transform: rotate(5deg);
}

.palette__item-color {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    font-size: var(--font-size-sm);
}

.palette__item-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: var(--spacing-xs);
    font-size: var(--font-size-xs);
    text-align: center;
    transform: translateY(100%);
    transition: var(--transition);
}

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

.palette__reset-btn {
    width: 100%;
    padding: var(--spacing-md);
    background: linear-gradient(45deg, var(--cyber-neon-purple), var(--cyber-neon-pink));
    border: none;
    border-radius: var(--border-radius);
    color: white;
    font-family: var(--font-family);
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.palette__reset-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-neon);
}

/* Mixing Area Styles */
.mixing__container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.mixing__dropzone {
    min-height: 200px;
    border: 3px dashed var(--cyber-neon-green);
    border-radius: var(--border-radius);
    background: rgba(57, 255, 20, 0.05);
    position: relative;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.mixing__dropzone.dragover {
    border-color: var(--cyber-neon-pink);
    background: rgba(255, 0, 110, 0.1);
    box-shadow: inset 0 0 20px rgba(255, 0, 110, 0.2);
}

.mixing__placeholder {
    text-align: center;
    color: var(--cyber-neon-green);
    opacity: 0.7;
}

.mixing__icon {
    font-size: var(--font-size-3xl);
    display: block;
    margin-bottom: var(--spacing-md);
    animation: float 3s ease-in-out infinite;
}

.mixing__text {
    font-size: var(--font-size-lg);
    text-shadow: 0 0 10px var(--cyber-neon-green);
}

.mixing__colors {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    min-height: 100px;
}

.mixing__color {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: var(--border-width) solid var(--cyber-neon-blue);
    position: relative;
    cursor: pointer;
    transition: var(--transition);
    animation: slideIn 0.3s ease-out;
}

.mixing__color:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-neon);
}

.mixing__color-remove {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 20px;
    height: 20px;
    background: var(--cyber-neon-pink);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: var(--font-size-xs);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.mixing__color-remove:hover {
    transform: scale(1.2);
}

.mixing__controls {
    display: flex;
    gap: var(--spacing-md);
}

.mixing__clear-btn,
.mixing__save-btn {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.mixing__clear-btn {
    background: linear-gradient(45deg, #ff4444, #cc0000);
    color: white;
}

.mixing__save-btn {
    background: linear-gradient(45deg, var(--cyber-neon-green), #00cc00);
    color: black;
}

.mixing__clear-btn:hover,
.mixing__save-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-neon);
}

/* Result Styles */
.result__container {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-lg);
    align-items: center;
}

.result__preview {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.result__color {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: var(--border-width) solid var(--cyber-neon-blue);
    background: white;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.result__info {
    flex: 1;
}

.result__info p {
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-family);
    font-weight: bold;
}

.result__hex {
    color: var(--cyber-neon-pink);
    font-size: var(--font-size-xl);
}

.result__rgb {
    color: var(--cyber-neon-blue);
}

.result__hsl {
    color: var(--cyber-neon-green);
}

.result__actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.result__copy-btn,
.result__add-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    white-space: nowrap;
}

.result__copy-btn {
    background: linear-gradient(45deg, var(--cyber-neon-blue), #0099cc);
    color: white;
}

.result__add-btn {
    background: linear-gradient(45deg, var(--cyber-neon-purple), #9900cc);
    color: white;
}

.result__copy-btn:hover,
.result__add-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-neon);
}

/* Saved Mixtures Styles */
.saved__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.saved__empty {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--cyber-neon-green);
    opacity: 0.7;
    padding: var(--spacing-2xl);
}

.saved__icon {
    font-size: var(--font-size-3xl);
    display: block;
    margin-bottom: var(--spacing-md);
}

.saved__item {
    background: rgba(42, 42, 42, 0.8);
    border: var(--border-width) solid var(--cyber-neon-purple);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: var(--transition);
    cursor: pointer;
}

.saved__item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-neon);
    border-color: var(--cyber-neon-pink);
}

.saved__item-preview {
    width: 100%;
    height: 60px;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.saved__item-info {
    font-size: var(--font-size-sm);
    color: var(--color-secondary);
}

.saved__item-colors {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.saved__item-color {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.saved__item-date {
    font-size: var(--font-size-xs);
    opacity: 0.7;
}

.saved__item-delete {
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    width: 24px;
    height: 24px;
    background: var(--cyber-neon-pink);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: var(--font-size-xs);
    cursor: pointer;
    opacity: 0;
    transition: var(--transition);
}

.saved__item:hover .saved__item-delete {
    opacity: 1;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: rgba(26, 26, 26, 0.95);
    border: var(--border-width) solid var(--cyber-neon-green);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    color: var(--cyber-neon-green);
    font-family: var(--font-family);
    font-weight: bold;
    min-width: 300px;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    animation: slideInRight 0.3s ease-out;
    position: relative;
    overflow: hidden;
}

.toast.success {
    border-color: var(--cyber-neon-green);
    color: var(--cyber-neon-green);
}

.toast.error {
    border-color: var(--cyber-neon-pink);
    color: var(--cyber-neon-pink);
}

.toast.info {
    border-color: var(--cyber-neon-blue);
    color: var(--cyber-neon-blue);
}

.toast::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: currentColor;
    animation: toastProgress 3s linear forwards;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal__content {
    background: var(--cyber-gray);
    border: var(--border-width) solid var(--cyber-neon-blue);
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    z-index: 1001;
    box-shadow: var(--shadow-lg);
}

.modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal__title {
    color: var(--cyber-neon-blue);
    font-size: var(--font-size-xl);
}

.modal__close {
    background: none;
    border: none;
    color: var(--cyber-neon-pink);
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: var(--transition);
}

.modal__close:hover {
    transform: scale(1.2);
}

.modal__body {
    padding: var(--spacing-lg);
}

/* Button Base Styles */
.btn__icon {
    font-size: var(--font-size-base);
}

/* Footer Styles */
.footer {
    background: rgba(26, 26, 26, 0.9);
    border-top: var(--border-width) solid var(--cyber-neon-pink);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
}

.footer__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    text-align: center;
}

.footer__text {
    color: var(--color-secondary);
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

/* Animations */
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes scanline {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes slideIn {
    from { transform: scale(0) rotate(180deg); opacity: 0; }
    to { transform: scale(1) rotate(0deg); opacity: 1; }
}

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

@keyframes toastProgress {
    from { width: 100%; }
    to { width: 0%; }
}

/* Responsive Design */
@media (max-width: 768px) {
    .header__title {
        font-size: var(--font-size-2xl);
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .main__container {
        padding: 0 var(--spacing-sm);
        gap: var(--spacing-lg);
    }
    
    section {
        padding: var(--spacing-lg);
    }
    
    .palette__grid {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
        gap: var(--spacing-sm);
    }
    
    .result__container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .result__preview {
        flex-direction: column;
        text-align: center;
    }
    
    .result__actions {
        flex-direction: row;
        justify-content: center;
    }
    
    .mixing__controls {
        flex-direction: column;
    }
    
    .saved__grid {
        grid-template-columns: 1fr;
    }
    
    .toast-container {
        left: 10px;
        right: 10px;
    }
    
    .toast {
        min-width: auto;
    }
    
    .modal__content {
        width: 95%;
        margin: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .header__container {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .header__title {
        font-size: var(--font-size-xl);
    }
    
    .header__subtitle {
        font-size: var(--font-size-base);
    }
    
    section h2 {
        font-size: var(--font-size-xl);
    }
    
    .mixing__dropzone {
        min-height: 150px;
    }
    
    .result__color {
        width: 80px;
        height: 80px;
    }
    
    .result__hex {
        font-size: var(--font-size-lg);
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Styles */
button:focus,
.palette__item:focus,
.mixing__dropzone:focus {
    outline: 2px solid var(--cyber-neon-blue);
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --cyber-neon-pink: #ff0080;
        --cyber-neon-blue: #00ffff;
        --cyber-neon-green: #00ff00;
        --cyber-neon-purple: #ff00ff;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    /* Already optimized for dark mode */
}