/**
 * Modern Design System for Pink58
 * Professional animations, typography, and micro-interactions
 * @version 1.0.0
 */

/* Import White Label Theme Presets */
@import url('/css/themes.css');

/* ========================================
   CSS Variables & Design Tokens
   ======================================== */
:root {
    /* Modern Color Palette */
    --primary-gradient: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
    --secondary-gradient: linear-gradient(135deg, #EC4899 0%, #F43F5E 100%);
    --success-gradient: linear-gradient(135deg, #10B981 0%, #059669 100%);
    --warning-gradient: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
    --dark-gradient: linear-gradient(135deg, #1F2937 0%, #111827 100%);
    
    /* Base Colors */
    --color-primary: #6366F1;
    --color-primary-dark: #4F46E5;
    --color-primary-light: #818CF8;
    --color-secondary: #EC4899;
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-danger: #EF4444;
    --color-info: #3B82F6;
    
    /* Neutral Palette */
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
    
    /* Font Weights */
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    
    /* Spacing Scale */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    
    /* Glow Effects */
    --glow-primary: 0 0 20px rgba(99, 102, 241, 0.5);
    --glow-secondary: 0 0 20px rgba(236, 72, 153, 0.5);
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-index Scale */
    --z-base: 1;
    --z-dropdown: 10;
    --z-sticky: 20;
    --z-overlay: 30;
    --z-modal: 40;
    --z-popover: 50;
    --z-tooltip: 60;
}

/* ========================================
   Global Styles & Resets
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-weight: var(--font-regular);
    line-height: 1.6;
    color: var(--color-gray-900);
    background: var(--color-gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Modern Background */
body.gradient-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-attachment: fixed;
    min-height: 100vh;
}

/* Add animated gradient */
body.animated-gradient {
    background: linear-gradient(-45deg, #667eea, #764ba2, #f093fb, #4facfe);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-bold);
    line-height: 1.2;
    color: var(--color-gray-900);
    margin-bottom: var(--space-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

.text-gradient {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Modern Containers & Cards
   ======================================== */
.container-modern {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
}

.card:hover::before {
    transform: translateX(0);
}

.card-hover {
    transition: all var(--transition-base);
}

.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* Glass Morphism Card */
.card-glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

/* ========================================
   Modern Buttons
   ======================================== */
.btn {
    font-family: var(--font-sans);
    font-weight: var(--font-medium);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    font-size: 0.875rem;
    line-height: 1;
}

/* Button Variants */
.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-gradient {
    background: var(--primary-gradient);
    color: var(--color-white);
    position: relative;
    z-index: 1;
}

.btn-gradient::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--secondary-gradient);
    opacity: 0;
    z-index: -1;
    transition: opacity var(--transition-base);
}

.btn-gradient:hover::before {
    opacity: 1;
}

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-primary);
}

/* Outline Button */
.btn-outline {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-1px);
}

/* Ghost Button */
.btn-ghost {
    background: transparent;
    color: var(--color-gray-700);
    padding: var(--space-xs) var(--space-sm);
}

.btn-ghost:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-900);
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
}

/* Loading Button Animation */
.btn-loading {
    color: transparent;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    margin: auto;
    border: 2px solid transparent;
    border-top-color: var(--color-white);
    border-radius: 50%;
    animation: button-loading-spinner 0.8s linear infinite;
}

@keyframes button-loading-spinner {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ========================================
   Form Elements
   ======================================== */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-weight: var(--font-medium);
    color: var(--color-gray-700);
    margin-bottom: var(--space-xs);
    font-size: 0.875rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: 1rem;
    font-family: var(--font-sans);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    background: var(--color-white);
    transition: all var(--transition-base);
    outline: none;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--color-gray-300);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Modern Switch Toggle */
.switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-gray-300);
    transition: var(--transition-base);
    border-radius: var(--radius-full);
}

.switch-slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: var(--color-white);
    transition: var(--transition-base);
    border-radius: 50%;
}

.switch input:checked + .switch-slider {
    background: var(--primary-gradient);
}

.switch input:checked + .switch-slider:before {
    transform: translateX(24px);
}

/* ========================================
   Modern Table Styles
   ======================================== */
.table-modern {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.table-modern thead {
    background: var(--color-gray-50);
}

.table-modern th {
    padding: var(--space-md) var(--space-lg);
    text-align: left;
    font-weight: var(--font-semibold);
    color: var(--color-gray-700);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table-modern td {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--color-gray-100);
}

.table-modern tbody tr {
    transition: all var(--transition-fast);
}

.table-modern tbody tr:hover {
    background: var(--color-gray-50);
}

/* ========================================
   Modal Styles
   ======================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.modal-overlay.show {
    opacity: 1;
}

.modal {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    transform: scale(0.9) translateY(20px);
    transition: all var(--transition-base);
}

.modal-overlay.show .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--color-gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-body {
    padding: var(--space-xl);
    overflow-y: auto;
    max-height: calc(90vh - 140px);
}

.modal-footer {
    padding: var(--space-lg) var(--space-xl);
    border-top: 1px solid var(--color-gray-100);
    display: flex;
    gap: var(--space-md);
    justify-content: flex-end;
}

/* ========================================
   Badges & Pills
   ======================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

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

.badge-success {
    background: var(--color-success);
    color: var(--color-white);
}

.badge-warning {
    background: var(--color-warning);
    color: var(--color-white);
}

.badge-danger {
    background: var(--color-danger);
    color: var(--color-white);
}

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

/* ========================================
   Stats Cards
   ======================================== */
.stat-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: var(--primary-gradient);
    border-radius: 50%;
    transform: translate(30px, -30px);
    opacity: 0.1;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-top: var(--space-xs);
}

.stat-change {
    font-size: 0.75rem;
    font-weight: var(--font-medium);
    margin-top: var(--space-sm);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.stat-change.positive {
    color: var(--color-success);
}

.stat-change.negative {
    color: var(--color-danger);
}

/* ========================================
   Loading States
   ======================================== */
.skeleton {
    background: linear-gradient(90deg, 
        var(--color-gray-200) 25%, 
        var(--color-gray-100) 50%, 
        var(--color-gray-200) 75%
    );
    background-size: 400% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
}

@keyframes skeleton-loading {
    0% { background-position: 100% 50%; }
    100% { background-position: 0 50%; }
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spinner-rotation 0.8s linear infinite;
}

@keyframes spinner-rotation {
    to { transform: rotate(360deg); }
}

/* ========================================
   Tooltips
   ======================================== */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip-content {
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%) scale(0.8);
    background: var(--color-gray-900);
    color: var(--color-white);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-lg);
}

.tooltip-content::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--color-gray-900);
}

.tooltip:hover .tooltip-content {
    opacity: 1;
    transform: translateX(-50%) scale(1) translateY(-4px);
}

/* ========================================
   Animations & Micro-interactions
   ======================================== */
.fade-in {
    animation: fadeIn var(--transition-slow) ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-up {
    animation: slideInUp var(--transition-slow) ease-out;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.scale-in {
    animation: scaleIn var(--transition-base) ease-out;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Hover Effects */
.hover-grow {
    transition: transform var(--transition-base);
}

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

.hover-lift {
    transition: all var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* ========================================
   Utility Classes
   ======================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-light { font-weight: var(--font-light); }
.font-regular { font-weight: var(--font-regular); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }

.mt-auto { margin-top: auto; }
.mb-auto { margin-bottom: auto; }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }

.flex { display: flex; }
.flex-column { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* Grid Utilities */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* ========================================
   Dark Mode Support
   ======================================== */
@media (prefers-color-scheme: dark) {
    :root {
        --color-gray-50: #111827;
        --color-gray-100: #1F2937;
        --color-gray-200: #374151;
        --color-gray-300: #4B5563;
        --color-gray-400: #6B7280;
        --color-gray-500: #9CA3AF;
        --color-gray-600: #D1D5DB;
        --color-gray-700: #E5E7EB;
        --color-gray-800: #F3F4F6;
        --color-gray-900: #F9FAFB;
    }
    
    body {
        background: var(--color-gray-900);
        color: var(--color-gray-100);
    }
    
    .card {
        background: var(--color-gray-800);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }
}