/**
 * Vedas Repository Theme
 * Ancient Scholarly Aesthetic with Modern Functionality
 * Font Stack: Cinzel (headers), Crimson Text (body), Noto Serif Devanagari (Sanskrit)
 */

/* ============================================
   GOOGLE FONTS IMPORT
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600;700&family=Crimson+Text:ital,wght@0,400;0,600;0,700;1,400&family=Noto+Serif+Devanagari:wght@400;500;600;700&family=Cormorant+Garamond:ital,wght@0,400;0,600;0,700;1,400&display=swap');

/* ============================================
   CSS VARIABLES - LIGHT THEME
   ============================================ */
:root {
    /* Primary Vedic Colors */
    --vedic-saffron: #D4691C;
    --vedic-saffron-dark: #B8572A;
    --vedic-terracotta: #B8572A;
    --vedic-gold: #C9A961;
    --vedic-gold-dark: #B8860B;
    --vedic-sandalwood: #6B4423;
    --vedic-sage: #8B8B6B;
    
    /* Background Colors */
    --bg-primary: #FDF8F0;
    --bg-secondary: #F5F1E8;
    --bg-elevated: #FFFBF5;
    --bg-overlay: rgba(253, 248, 240, 0.98);
    
    /* Text Colors */
    --text-primary: #2C2416;
    --text-secondary: #5A4A3A;
    --text-tertiary: #7A6A5A;
    --text-muted: #8B7B6B;
    
    /* Border & Divider Colors */
    --border-color: #D4C4B4;
    --border-accent: var(--vedic-gold);
    --divider-light: rgba(212, 196, 180, 0.3);
    
    /* Interactive Elements */
    --link-color: var(--vedic-saffron);
    --link-hover: var(--vedic-saffron-dark);
    --button-primary: var(--vedic-saffron);
    --button-primary-hover: var(--vedic-saffron-dark);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(44, 36, 22, 0.08);
    --shadow-md: 0 4px 16px rgba(44, 36, 22, 0.12);
    --shadow-lg: 0 8px 32px rgba(44, 36, 22, 0.16);
    --shadow-gold: 0 2px 12px rgba(201, 169, 97, 0.3);
    
    /* Typography */
    --font-heading: 'Cinzel', 'Cormorant Garamond', serif;
    --font-body: 'Crimson Text', 'Georgia', serif;
    --font-devanagari: 'Noto Serif Devanagari', serif;
    
    /* 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: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ============================================
   DARK THEME
   ============================================ */
[data-theme="dark"] {
    /* Dark Theme Colors */
    --vedic-saffron: #E88C3C;
    --vedic-saffron-dark: #D4691C;
    --vedic-gold: #D4AD6D;
    
    /* Dark Backgrounds */
    --bg-primary: #1A1510;
    --bg-secondary: #261E16;
    --bg-elevated: #2F251A;
    --bg-overlay: rgba(26, 21, 16, 0.98);
    
    /* Dark Text */
    --text-primary: #F5F1E8;
    --text-secondary: #D4C4B4;
    --text-tertiary: #B4A494;
    --text-muted: #948474;
    
    /* Dark Borders */
    --border-color: #3A3025;
    --divider-light: rgba(58, 48, 37, 0.5);
    
    /* Dark Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-gold: 0 2px 12px rgba(212, 173, 109, 0.25);
}

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

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

body {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color var(--transition-base), color var(--transition-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    letter-spacing: 0.02em;
}

h1 {
    font-size: 2.75rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}

h2 {
    font-size: 2.25rem;
    position: relative;
    padding-bottom: var(--spacing-md);
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(to right, var(--vedic-gold), transparent);
}

h3 {
    font-size: 1.875rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1.0625rem;
    font-weight: 700;
}

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

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--link-hover);
}

/* Sanskrit/Devanagari Text */
.devanagari,
[lang="sa"],
[lang="hi"] {
    font-family: var(--font-devanagari);
    font-size: 1.15em;
    line-height: 1.9;
}

/* Drop Caps for Special Sections */
.drop-cap::first-letter {
    float: left;
    font-size: 4em;
    line-height: 0.85;
    margin: 0.1em 0.1em 0 0;
    font-family: var(--font-heading);
    color: var(--vedic-saffron);
    font-weight: 700;
}

/* ============================================
   HEADER STYLES
   ============================================ */
.vedas-header {
    background: var(--bg-elevated);
    border-bottom: 2px solid var(--border-color);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-base);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

/* Brand Section */
.header-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex-shrink: 0;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--vedic-saffron);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.brand-link:hover {
    color: var(--vedic-saffron-dark);
    transform: translateY(-1px);
}

.brand-link i {
    font-size: 1.75rem;
    color: var(--vedic-gold);
}

.brand-name {
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.section-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, var(--vedic-saffron), var(--vedic-terracotta));
    color: white;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    box-shadow: var(--shadow-gold);
}

.section-indicator i {
    font-size: 1rem;
}

/* Navigation */
.header-nav {
    display: flex;
    gap: var(--spacing-sm);
    flex: 1;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
    letter-spacing: 0.02em;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: var(--vedic-gold);
    transition: transform var(--transition-fast);
}

.nav-link:hover {
    color: var(--vedic-saffron);
    background: var(--bg-secondary);
}

.nav-link:hover::before {
    transform: translateX(-50%) scaleX(1);
}

.nav-link.active {
    color: var(--vedic-saffron);
    background: var(--bg-secondary);
    font-weight: 600;
}

.nav-link.active::before {
    transform: translateX(-50%) scaleX(1);
}

.nav-link i {
    font-size: 1.125rem;
}

/* Toggle Container */
.toggle-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding-left: var(--spacing-lg);
    border-left: 1px solid var(--divider-light);
}

.toggle-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.toggle-label {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 26px;
}

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

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--border-color);
    transition: var(--transition-base);
    border-radius: 26px;
    border: 2px solid var(--border-accent);
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 2px;
    background: linear-gradient(135deg, var(--vedic-gold), var(--vedic-gold-dark));
    transition: var(--transition-base);
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--vedic-saffron);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(26px);
}

/* Language Selector */
.language-selector {
    position: relative;
}

.language-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.language-btn:hover {
    background: var(--bg-elevated);
    border-color: var(--vedic-gold);
    box-shadow: var(--shadow-sm);
}

.language-btn i:last-child {
    font-size: 0.75rem;
    margin-left: var(--spacing-xs);
    transition: transform var(--transition-fast);
}

.language-btn:hover i:last-child {
    transform: translateY(2px);
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 180px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: none;
    overflow: hidden;
    z-index: 1001;
}

.language-dropdown.active {
    display: block;
    animation: dropdownSlide 0.2s ease;
}

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

.language-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.language-option:hover {
    background: var(--bg-secondary);
    color: var(--vedic-saffron);
}

.language-option.active {
    background: var(--bg-secondary);
    color: var(--vedic-saffron);
    font-weight: 600;
}

.language-option i {
    font-size: 0.875rem;
    color: var(--vedic-gold);
}

/* User Menu */
.header-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding-left: var(--spacing-lg);
    border-left: 1px solid var(--divider-light);
}

.user-info {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
    font-family: var(--font-body);
}

.user-greeting {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.user-name {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
}

.user-avatar-container {
    position: relative;
}

.user-avatar,
.user-avatar-placeholder {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--vedic-gold);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.user-avatar {
    object-fit: cover;
}

.user-avatar-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--vedic-saffron), var(--vedic-terracotta));
    color: white;
    font-size: 1.125rem;
}

.user-avatar:hover,
.user-avatar-placeholder:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    min-width: 220px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: none;
    overflow: hidden;
    z-index: 1001;
}

.user-avatar-container:hover .user-dropdown {
    display: block;
    animation: dropdownSlide 0.2s ease;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--bg-secondary);
    color: var(--vedic-saffron);
}

.dropdown-item i {
    font-size: 1.125rem;
    width: 20px;
    color: var(--text-secondary);
}

.dropdown-item:hover i {
    color: var(--vedic-gold);
}

.dropdown-item.logout {
    border-top: 1px solid var(--divider-light);
    color: var(--vedic-terracotta);
}

.dropdown-divider {
    height: 1px;
    background: var(--divider-light);
    margin: var(--spacing-xs) 0;
}

/* Guest Actions */
.guest-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.login-btn,
.register-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    letter-spacing: 0.02em;
}

.login-btn {
    color: var(--text-primary);
    background: transparent;
    border: 1px solid var(--border-color);
}

.login-btn:hover {
    background: var(--bg-secondary);
    border-color: var(--vedic-gold);
    color: var(--vedic-saffron);
}

.register-btn {
    color: white;
    background: linear-gradient(135deg, var(--vedic-saffron), var(--vedic-terracotta));
    border: none;
    box-shadow: var(--shadow-sm);
}

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
    background: var(--bg-secondary);
    border-color: var(--vedic-gold);
    color: var(--vedic-saffron);
}

.mobile-menu-toggle i {
    font-size: 1.25rem;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    max-height: 0;
    overflow: hidden;
    background: var(--bg-secondary);
    border-top: 1px solid var(--divider-light);
    transition: max-height var(--transition-base) ease;
}

.mobile-menu.active {
    max-height: 600px;
}

.mobile-menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-primary);
    text-decoration: none;
    border-bottom: 1px solid var(--divider-light);
    transition: all var(--transition-fast);
}

.mobile-menu-item:hover {
    background: var(--bg-elevated);
    color: var(--vedic-saffron);
    padding-left: calc(var(--spacing-xl) + var(--spacing-sm));
}

.mobile-menu-item i {
    font-size: 1.25rem;
    width: 24px;
    color: var(--text-secondary);
}

.mobile-menu-item:hover i {
    color: var(--vedic-gold);
}

.mobile-menu-divider {
    height: 1px;
    background: var(--divider-light);
    margin: var(--spacing-sm) var(--spacing-xl);
}

/* Mobile Menu Toggle Item */
.mobile-menu-toggle-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-xl);
    border-bottom: 1px solid var(--divider-light);
}

.mobile-toggle-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-primary);
}

.mobile-toggle-label i {
    font-size: 1.25rem;
    width: 24px;
    color: var(--text-secondary);
}

/* Mobile Menu Section */
.mobile-menu-section {
    padding: var(--spacing-sm) 0;
}

.mobile-section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mobile-section-title i {
    font-size: 1rem;
    width: 24px;
    color: var(--vedic-gold);
}

.mobile-lang-option.active {
    background: var(--bg-elevated);
    color: var(--vedic-saffron);
    font-weight: 600;
}

/* Mobile User Info */
.mobile-user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--vedic-saffron), var(--vedic-terracotta));
    color: white;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
}

.mobile-user-info i {
    font-size: 1.5rem;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1200px) {
    .header-container {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .nav-link span {
        display: none;
    }
    
    .nav-link {
        padding: var(--spacing-sm);
    }
    
    .nav-link i {
        font-size: 1.25rem;
    }
}

@media (max-width: 992px) {
    .header-nav {
        display: none;
    }
    
    .toggle-container {
        display: none; /* Hide dark mode and language on mobile */
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .user-info {
        display: none;
    }
    
    .header-user {
        margin-left: auto; /* Push to right on mobile */
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: var(--spacing-sm) var(--spacing-md);
        gap: var(--spacing-md);
    }
    
    .brand-name {
        font-size: 1.125rem;
    }
    
    .section-indicator {
        display: none;
    }
    
    .toggle-group {
        gap: var(--spacing-xs);
    }
    
    .toggle-label {
        font-size: 0.875rem;
    }
    
    .toggle-switch {
        width: 44px;
        height: 22px;
    }
    
    .toggle-slider:before {
        width: 16px;
        height: 16px;
    }
    
    .toggle-switch input:checked + .toggle-slider:before {
        transform: translateX(22px);
    }
    
    .header-user {
        padding-left: var(--spacing-md);
        gap: var(--spacing-sm);
    }
    
    .guest-actions {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .login-btn,
    .register-btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.8125rem;
    }
}

@media (max-width: 480px) {
    .brand-link i {
        font-size: 1.5rem;
    }
    
    .brand-name {
        font-size: 1rem;
    }
    
    .language-btn span {
        display: none;
    }
    
    .toggle-container {
        gap: var(--spacing-sm);
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-saffron { color: var(--vedic-saffron); }
.text-gold { color: var(--vedic-gold); }
.text-terracotta { color: var(--vedic-terracotta); }
.text-sandalwood { color: var(--vedic-sandalwood); }

.bg-saffron { background-color: var(--vedic-saffron); }
.bg-gold { background-color: var(--vedic-gold); }
.bg-elevated { background-color: var(--bg-elevated); }

.border-gold { border-color: var(--vedic-gold); }
.border-accent { border-color: var(--border-accent); }

/* Decorative Ornaments */
.ornament-divider {
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, transparent, var(--vedic-gold), transparent);
    margin: var(--spacing-xl) 0;
}

.ornament-corner {
    width: 60px;
    height: 60px;
    border-top: 2px solid var(--vedic-gold);
    border-right: 2px solid var(--vedic-gold);
    position: absolute;
    top: 0;
    right: 0;
}

/* Sanskrit Verse Container */
.sanskrit-verse {
    padding: var(--spacing-xl);
    background: var(--bg-elevated);
    border-left: 3px solid var(--vedic-gold);
    border-radius: var(--radius-md);
    margin: var(--spacing-xl) 0;
    box-shadow: var(--shadow-sm);
}

.sanskrit-verse p {
    font-family: var(--font-devanagari);
    font-size: 1.25rem;
    line-height: 2;
    color: var(--text-primary);
    text-align: center;
}

/* Sacred Symbol */
.sacred-om {
    text-align: center;
    font-size: 3rem;
    color: var(--vedic-gold);
    margin: var(--spacing-2xl) 0;
    filter: drop-shadow(0 4px 8px rgba(201, 169, 97, 0.3));
}