/* ========================================
   CHEBIG THEME - MAIN STYLES
   Modern CSS for CHEBIG.SK Educational Platform
   ======================================== */

/* ========================================
   CSS VARIABLES & CUSTOM PROPERTIES
   ======================================== */

:root {
    /* Subject Colors */
    --biology-color: #10b981;
    --biology-light: #34d399;
    --biology-dark: #059669;
    --chemistry-color: #8b5cf6;
    --chemistry-light: #a78bfa;
    --chemistry-dark: #7c3aed;
    --geography-color: #3b82f6;
    --geography-light: #60a5fa;
    --geography-dark: #2563eb;
    --interesting-color: #f59e0b;
    --interesting-light: #fbbf24;
    --interesting-dark: #d97706;

    /* Primary Colors */
    --primary-yellow: #fbbf24;
    --primary-orange: #f59e0b;
    --primary-purple: #7c3aed;
    --primary-pink: #ec4899;
    --primary-blue: #3b82f6;
    --primary-green: #10b981;

    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Text Colors */
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --text-dark: #1e293b;

    /* Backgrounds */
    --bg-white: #ffffff;
    --bg-gray: #f9fafb;
    --bg-light: #fef3c7;
    --bg-dark: #111827;

    /* Borders & Shadows */
    --border-color: #e5e7eb;
    --shadow-color: rgba(0, 0, 0, 0.1);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Poppins', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    --spacing-4xl: 8rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* 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);
    --transition-bounce: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Z-Index */
    --z-base: 1;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1050;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--bg-white);
    line-height: 1.6;
    overflow-x: hidden;
    padding-top: 80px; /* Prevent content being covered by fixed navbar */
}

body.admin-bar {
    padding-top: calc(80px + 32px); /* Account for WP admin bar */
}

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

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

h1 { font-size: clamp(2.5rem, 6vw, 4rem); }
h2 { font-size: clamp(2rem, 5vw, 3rem); }
h3 { font-size: clamp(1.5rem, 4vw, 2rem); }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.8;
}

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

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ========================================
   GRADIENTS & BACKGROUNDS
   ======================================== */

.biology-gradient {
    background: linear-gradient(135deg, var(--biology-color), var(--biology-light));
}

.chemistry-gradient {
    background: linear-gradient(135deg, var(--chemistry-color), var(--chemistry-light));
}

.geography-gradient {
    background: linear-gradient(135deg, var(--geography-color), var(--geography-light));
}

.interesting-gradient {
    background: linear-gradient(135deg, var(--interesting-color), var(--interesting-light));
}

.gradient-primary {
    background: linear-gradient(135deg, var(--primary-yellow), var(--primary-orange));
}

.gradient-secondary {
    background: linear-gradient(135deg, var(--primary-purple), var(--chemistry-light));
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-yellow), var(--primary-orange), var(--primary-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--radius-lg);
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-yellow), var(--primary-orange));
    color: white;
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary {
    background: linear-gradient(135deg, var(--primary-purple), var(--chemistry-color));
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-2xl);
    color: white;
}

.btn-glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

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

.btn-white:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-2xl);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--gray-300);
}

.btn-outline:hover {
    background: var(--gray-50);
    border-color: var(--primary-purple);
    color: var(--primary-purple);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.btn-small {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
}

@keyframes pulse-animation {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(251, 191, 36, 0.7);
    }
    50% {
        box-shadow: 0 0 0 20px rgba(251, 191, 36, 0);
    }
}

.btn-pulse {
    animation: pulse-animation 2s infinite;
}

/* ========================================
   NAVIGATION
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-lg);
}

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

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

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

.logo-icon {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, var(--primary-purple), var(--chemistry-color));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.logo:hover .logo-icon {
    transform: rotate(360deg) scale(1.1);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
}

.logo-text .highlight {
    background: linear-gradient(135deg, var(--primary-purple), var(--chemistry-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: var(--text-secondary);
    font-weight: 600;
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-purple), var(--chemistry-color));
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--primary-purple);
}

.nav-link:hover::after,
.nav-link.active::after,
.nav-link.current-menu-item::after {
    width: 100%;
}

.cta-nav {
    background: linear-gradient(135deg, var(--primary-purple), var(--chemistry-color));
    color: white !important;
    padding: 0.625rem 1.5rem;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
}

.cta-nav::after {
    display: none;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 28px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all var(--transition-base);
}

/* Custom Logo */
.custom-logo-link {
    display: flex;
    align-items: center;
}

.custom-logo {
    max-height: 50px;
    width: auto;
    transition: all var(--transition-base);
}

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

/* Navigation Wrapper */
.nav-wrapper {
    display: flex;
    align-items: center;
    gap: 2rem;
}

/* Dropdown Menu Styles */
.nav-menu .menu-item {
    position: relative;
}

.nav-menu .menu-item-has-children > a::after {
    content: '\f107';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    margin-left: 0.5rem;
    font-size: 0.8rem;
    transition: transform var(--transition-base);
}

.nav-menu .menu-item-has-children:hover > a::after {
    transform: rotate(180deg);
}

.nav-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: white;
    box-shadow: var(--shadow-xl);
    border-radius: var(--radius-md);
    padding: 0.5rem 0;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-base);
    z-index: 1000;
}

.nav-menu .menu-item-has-children:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-menu .sub-menu li {
    margin: 0;
}

.nav-menu .sub-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    font-weight: 600;
    transition: all var(--transition-base);
}

.nav-menu .sub-menu a:hover {
    background: var(--bg-gray);
    color: var(--primary-purple);
    padding-left: 2rem;
}

.nav-menu .sub-menu a::after {
    display: none;
}

/* Multi-level dropdown */
.nav-menu .sub-menu .menu-item-has-children > a::after {
    content: '\f105';
    float: right;
    margin-left: 1rem;
}

.nav-menu .sub-menu .sub-menu {
    left: 100%;
    top: 0;
}

/* Nav Actions (Social + HeroHero) */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-social {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-social-link {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-gray);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.nav-social-link:hover {
    background: var(--primary-purple);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-herohero {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.5rem;
    background: linear-gradient(135deg, #ec4899, #f43f5e);
    color: white;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.95rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    text-decoration: none;
}

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

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

/* ========================================
   ARCHIVE & BLOG PAGES
   ======================================== */

.ast-archive-description {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 50%, #fef3c7 100%);
    padding: 6rem 2rem 4rem;
    border-radius: 0 0 50px 50px;
    margin-bottom: 4rem;
}

.ast-archive-title {
    font-size: 3.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-yellow), var(--primary-orange), var(--primary-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.archive-description-text {
    color: #92400e;
    font-size: 1.1rem;
    line-height: 1.7;
}

/* Blog Grid */
.ast-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    width: 100%;
}

@media (max-width: 1024px) {
    .ast-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .ast-row {
        grid-template-columns: 1fr;
    }
}

.ast-article-post {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.ast-article-post:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* Clickable Card */
.post-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
    height: 100%;
}

.post-category-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.5rem 1rem;
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    z-index: 2;
    box-shadow: var(--shadow-md);
}

.post-thumb-img-content {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.post-thumb-img-content img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.ast-article-post:hover .post-thumb-img-content img {
    transform: scale(1.1);
}

.post-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ast-article-post:hover .post-overlay {
    opacity: 1;
}

.post-read-btn {
    padding: 0.75rem 1.5rem;
    background: white;
    color: var(--text-dark);
    border-radius: var(--radius-full);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transform: translateY(10px);
    transition: transform 0.3s ease;
}

.ast-article-post:hover .post-read-btn {
    transform: translateY(0);
}

.post-content {
    padding: 1.75rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Category Badges */
.cat-links {
    margin-bottom: 1rem;
}

.cat-links a {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--primary-yellow);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-base);
}

.cat-links a:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Category-specific colors */
.cat-links a[href*="biologia"] {
    background: linear-gradient(135deg, var(--biology-color), var(--biology-light));
}

.cat-links a[href*="chemia"] {
    background: linear-gradient(135deg, var(--chemistry-color), var(--chemistry-light));
}

.cat-links a[href*="geografia"] {
    background: linear-gradient(135deg, var(--geography-color), var(--geography-light));
}

.cat-links a[href*="zaujimavosti"] {
    background: linear-gradient(135deg, var(--interesting-color), var(--interesting-light));
}

/* Post Meta */
.post-meta-info {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.post-meta-info i {
    margin-right: 0.25rem;
}

.post-meta-info a {
    color: inherit;
    text-decoration: none;
}

.post-meta-info a:hover {
    color: var(--primary-orange);
}

/* Post Title */
.entry-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.entry-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

.entry-title a:hover {
    color: var(--primary-orange);
}

/* Post Excerpt */
.entry-summary {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    flex: 1;
}

/* Read More Link */
.read-more-link-wrapper {
    margin-top: auto;
}

.read-more-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-orange);
    font-weight: 600;
    text-decoration: none;
    transition: gap 0.3s ease;
}

.read-more-link:hover {
    gap: 1rem;
}

/* ========================================
   PAGINATION
   ======================================== */

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 4rem;
    flex-wrap: wrap;
}

.page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 45px;
    height: 45px;
    padding: 0 1rem;
    background: white;
    color: var(--text-secondary);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-base);
}

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

.page-numbers.current {
    background: linear-gradient(135deg, var(--primary-yellow), var(--primary-orange));
    color: white;
    border-color: transparent;
}

.page-numbers.prev,
.page-numbers.next {
    padding: 0 1.5rem;
}

.page-numbers.dots {
    border: none;
    background: transparent;
    cursor: default;
}

.page-numbers.dots:hover {
    background: transparent;
    transform: none;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background: var(--text-dark);
    color: var(--gray-300);
    padding: 4rem 0 2rem;
    margin-top: 6rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-column h4 {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: 1rem;
}

.footer-logo .logo-icon {
    width: 40px;
    height: 40px;
}

.footer-logo .logo-text {
    font-size: 1.5rem;
}

.footer-description {
    color: var(--gray-400);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: white;
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--primary-orange);
    transform: translateY(-3px);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--gray-400);
    transition: color var(--transition-base);
}

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

.footer-support-text {
    color: var(--gray-400);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer-badges {
    margin-top: 1rem;
}

.badge-mini {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: var(--gray-300);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--gray-500);
}

.footer-note {
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

/* ========================================
   SCROLL TO TOP BUTTON
   ======================================== */

.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-yellow), var(--primary-orange));
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-sticky);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-2xl);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 992px) {
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-wrapper {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: white;
        flex-direction: column;
        padding: 2rem;
        transition: left var(--transition-base);
        box-shadow: var(--shadow-xl);
        overflow-y: auto;
        align-items: flex-start;
        gap: 2rem;
        z-index: 1000;
    }

    .nav-wrapper.active {
        left: 0;
    }

    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
        display: flex !important;
    }

    .nav-menu .menu-item {
        width: 100%;
    }

    .nav-menu li {
        width: 100%;
        list-style: none;
    }

    .nav-menu .menu-item > a,
    .nav-menu li > a {
        display: block;
        padding: 1rem;
        border-radius: var(--radius-md);
        color: var(--text-primary);
        font-weight: 600;
    }

    .nav-menu .menu-item:hover > a,
    .nav-menu li:hover > a {
        background: var(--bg-gray);
    }

    /* Mobile Dropdown */
    .nav-menu .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--bg-gray);
        margin-top: 0.5rem;
        border-radius: var(--radius-md);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
    }

    .nav-menu .menu-item-has-children.open > .sub-menu {
        max-height: 500px;
    }

    .nav-menu .sub-menu .sub-menu {
        margin-left: 1rem;
    }

    .nav-actions {
        flex-direction: column;
        width: 100%;
        gap: 1.5rem;
        padding-top: 1.5rem;
        border-top: 2px solid var(--bg-gray);
    }

    .nav-social {
        justify-content: center;
        width: 100%;
    }

    .btn-herohero {
        width: 100%;
        justify-content: center;
        padding: 1rem 2rem;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    .ast-archive-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .ast-archive-description {
        padding: 4rem 1.5rem 3rem;
    }

    .ast-archive-title {
        font-size: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */

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

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Fade in animation for posts */
[data-aos="fade-up"] {
    animation: fadeInUp 0.6s ease-out;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

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

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

.hidden { display: none !important; }
.visible { display: block !important; }