/**
 * MODERN MATRIMONY PLATFORM - Advanced CSS
 * Mobile-First | Animations | Glassmorphism | Modern Design
 * Version 2.0 - 2024
 */

/* ============================================
   CSS VARIABLES - Easy Theme Customization
============================================ */
:root {
    /* Primary Colors - Modern Gradient Palette */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --primary-dark: #5568d3;
    --primary-light: #7c8ef7;
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-color: #f5576c;
    --accent-light: #ff6b81;
    
    /* Neutral Colors */
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --text-light: #a0aec0;
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-dark: #1a202c;
    --border-color: #e2e8f0;
    
    /* Semantic Colors */
    --success: #48bb78;
    --error: #f56565;
    --warning: #ed8936;
    --info: #4299e1;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --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);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   GLOBAL RESET & BASE STYLES
============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
    overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY
============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all var(--transition-base);
}

a:hover {
    color: var(--primary-dark);
}

/* ============================================
   CONTAINER & GRID SYSTEM
============================================ */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-1 { grid-template-columns: 1fr; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* ============================================
   MODERN HEADER/NAVBAR
============================================ */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    animation: slideDown 0.5s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    gap: var(--spacing-md);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
    transition: transform var(--transition-base);
}

.logo:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-menu a {
    font-weight: 500;
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: var(--primary-gradient);
    transition: transform var(--transition-base);
}

.nav-menu a:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-menu a:hover {
    color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 280px;
        height: calc(100vh - 70px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--spacing-xl);
        box-shadow: var(--shadow-2xl);
        transition: right var(--transition-base);
        align-items: flex-start;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu a {
        width: 100%;
        padding: var(--spacing-md);
    }
}

/* ============================================
   HERO SECTION - Modern Gradient Design
============================================ */
.hero {
    position: relative;
    background: var(--primary-gradient);
    color: white;
    padding: clamp(3rem, 8vw, 6rem) 0;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out;
}

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

.hero h1 {
    color: white;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero p {
    font-size: 1.25rem;
    opacity: 0.95;
    margin-bottom: var(--spacing-xl);
}

/* Animated gradient orbs */
.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.hero-orb-1 {
    width: 300px;
    height: 300px;
    background: #f093fb;
    top: 10%;
    left: 10%;
}

.hero-orb-2 {
    width: 400px;
    height: 400px;
    background: #764ba2;
    bottom: 10%;
    right: 10%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(20px, 30px) rotate(90deg); }
    50% { transform: translate(-20px, 40px) rotate(180deg); }
    75% { transform: translate(30px, -20px) rotate(270deg); }
}

/* ============================================
   MODERN BUTTONS
============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

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

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

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

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

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.btn-icon {
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: var(--radius-full);
}

/* ============================================
   MODERN CARDS
============================================ */
.card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-base);
    border: 1px solid var(--border-color);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.card-img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

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

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.card-text {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* Profile Card Special Styling */
.profile-card {
    position: relative;
    overflow: visible;
}

.profile-badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: var(--primary-gradient);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin: var(--spacing-xs);
    box-shadow: var(--shadow-sm);
}

.match-score {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: var(--radius-full);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--success);
    box-shadow: var(--shadow-xl);
    border: 4px solid white;
    z-index: 10;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.match-score.medium {
    color: var(--warning);
}

.match-score.low {
    color: var(--error);
}

/* ============================================
   FORMS - Modern Design
============================================ */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: white;
    transition: all var(--transition-base);
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-control:hover {
    border-color: var(--primary-light);
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%23718096' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

/* Input with icon */
.input-group {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.input-group .form-control {
    padding-left: 3rem;
}

/* ============================================
   TABS - Modern Design
============================================ */
.tabs {
    display: flex;
    gap: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
    margin-bottom: var(--spacing-xl);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab {
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all var(--transition-base);
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
    position: relative;
}

.tab:hover {
    color: var(--primary-color);
    background: rgba(102, 126, 234, 0.05);
}

.tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ============================================
   ALERTS & NOTIFICATIONS
============================================ */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    animation: slideInRight 0.3s ease-out;
}

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

.alert-success {
    background: #f0fdf4;
    color: #166534;
    border-left: 4px solid var(--success);
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border-left: 4px solid var(--error);
}

.alert-info {
    background: #eff6ff;
    color: #1e40af;
    border-left: 4px solid var(--info);
}

.alert-warning {
    background: #fffbeb;
    color: #92400e;
    border-left: 4px solid var(--warning);
}

/* ============================================
   DASHBOARD STATS
============================================ */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--primary-gradient);
    color: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
    font-weight: 500;
}

/* ============================================
   PROGRESS BAR
============================================ */
.progress {
    height: 12px;
    background: var(--border-color);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.progress-bar {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    transition: width 1s ease-out;
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

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

/* ============================================
   FILTER PANEL
============================================ */
.filter-panel {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-color);
}

.filter-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

/* ============================================
   PAGINATION
============================================ */
.pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-xl) 0;
    flex-wrap: wrap;
}

.page-link {
    padding: 0.625rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: white;
    color: var(--text-primary);
    font-weight: 600;
    transition: all var(--transition-base);
    min-width: 44px;
    text-align: center;
}

.page-link:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.page-link.active {
    background: var(--primary-gradient);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-md);
}

/* ============================================
   FOOTER
============================================ */
.footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-base);
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   LOADING SPINNER
============================================ */
.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   UTILITY CLASSES
============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }

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

/* ============================================
   RESPONSIVE DESIGN
============================================ */
@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .hero {
        padding: 3rem 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .tabs {
        border-bottom: none;
    }
    
    .tab {
        flex: 1;
        text-align: center;
        border: 2px solid var(--border-color);
        border-radius: var(--radius-md);
        margin-bottom: var(--spacing-sm);
    }
    
    .tab.active {
        border-color: var(--primary-color);
    }
}

/* ============================================
   DARK MODE SUPPORT (Optional)
============================================ */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #e2e8f0;
        --text-secondary: #a0aec0;
        --bg-primary: #1a202c;
        --bg-secondary: #2d3748;
        --border-color: #4a5568;
    }
    
    body {
        background: var(--bg-secondary);
        color: var(--text-primary);
    }
    
    .card {
        background: var(--bg-primary);
        border-color: var(--border-color);
    }
}

/* ============================================
   ACCESSIBILITY
============================================ */
:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ============================================
   PRINT STYLES
============================================ */
@media print {
    .header, .footer, .btn, .nav-menu {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}