/* ============================================
   VIRICAL Theme - main.css v1.0.0
   Smart Home & Decorative Lighting
   ============================================ */

/* --- CSS Variables --- */
:root {
    --color-primary: #1B2A4A;
    --color-primary-light: #2A3F6B;
    --color-secondary: #2D2D2D;
    --color-accent: #D4A853;
    --color-accent-light: #F5E6C8;
    --color-accent-hover: #C4963F;
    --color-bg: #F8F6F3;
    --color-white: #FFFFFF;
    --color-surface: #FFFFFF;
    --color-border: #E8E4DF;
    --color-text: #2D2D2D;
    --color-text-muted: #7A7A7A;
    --color-text-light: #999;
    --color-success: #27AE60;
    --color-danger: #E74C3C;
    
    --font-heading: 'Montserrat', -apple-system, sans-serif;
    --font-body: 'Inter', -apple-system, sans-serif;
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --shadow-xl: 0 16px 50px rgba(0,0,0,0.15);
    
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition: all 0.3s ease;
    
    --container: 1280px;
    --header-height: 80px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-accent); }

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-primary);
}
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

/* --- Container --- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}
.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
}
.btn-primary:hover { background: var(--color-accent-hover); color: var(--color-white); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline {
    background: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
}
.btn-outline:hover { background: var(--color-accent); color: var(--color-white); }
.btn-dark {
    background: var(--color-primary);
    color: var(--color-white);
}
.btn-dark:hover { background: var(--color-primary-light); color: var(--color-white); transform: translateY(-2px); }

/* --- Header --- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}
.site-logo a { display: flex; align-items: center; gap: 8px; }
.logo-text {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 2px;
}
.main-navigation { display: flex; align-items: center; }
.nav-menu { display: flex; list-style: none; gap: 4px; }
.nav-menu > li > a {
    padding: 8px 16px;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--color-text);
    border-radius: var(--radius);
    transition: var(--transition);
}
.nav-menu > li > a:hover,
.nav-menu > li.current-menu-item > a {
    color: var(--color-accent);
    background: var(--color-accent-light);
}
.header-actions { display: flex; align-items: center; gap: 12px; }
.search-toggle {
    background: none; border: none; cursor: pointer; padding: 8px;
    color: var(--color-text); border-radius: var(--radius);
    transition: var(--transition);
}
.search-toggle:hover { background: var(--color-bg); color: var(--color-accent); }
.hotline-btn {
    display: flex; align-items: center; gap: 6px;
    padding: 8px 16px; background: var(--color-accent);
    color: var(--color-white); border-radius: var(--radius);
    font-weight: 600; font-size: 0.85rem;
}
.hotline-btn:hover { background: var(--color-accent-hover); color: var(--color-white); }
.mobile-menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.mobile-menu-toggle span {
    display: block; width: 24px; height: 2px; background: var(--color-text);
    margin: 5px 0; transition: var(--transition);
}

/* Search dropdown */
.search-dropdown {
    display: none; position: absolute; top: var(--header-height);
    left: 0; right: 0; background: var(--color-white);
    border-bottom: 2px solid var(--color-accent);
    padding: 20px 0; box-shadow: var(--shadow-lg);
}
.search-dropdown.active { display: block; }
.search-dropdown .search-form { display: flex; max-width: 600px; margin: 0 auto; }
.search-dropdown .search-field {
    flex: 1; padding: 12px 20px; border: 2px solid var(--color-border);
    border-radius: var(--radius); font-size: 1rem; font-family: var(--font-body);
}
.search-dropdown .search-submit {
    padding: 12px 24px; background: var(--color-accent); color: white;
    border: none; border-radius: var(--radius); font-weight: 600; cursor: pointer;
    margin-left: 8px;
}

/* --- Hero Section --- */
.hero-section {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    overflow: hidden;
}
.hero-section::after {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0;
    width: 50%;
    background: linear-gradient(135deg, rgba(212,168,83,0.1) 0%, transparent 100%);
}
.hero-content {
    position: relative; z-index: 2;
    max-width: 600px;
    color: var(--color-white);
}
.hero-content h1 { color: var(--color-white); margin-bottom: 20px; }
.hero-content p { font-size: 1.15rem; opacity: 0.9; margin-bottom: 32px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
    display: flex; gap: 40px; margin-top: 48px;
    padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.2);
}
.hero-stat-number { font-family: var(--font-heading); font-size: 2rem; font-weight: 700; color: var(--color-accent); }
.hero-stat-label { font-size: 0.85rem; opacity: 0.8; }

/* --- Product Cards --- */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.product-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.product-card-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--color-bg);
}
.product-card-image img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.5s ease;
}
.product-card:hover .product-card-image img { transform: scale(1.05); }
.product-badge {
    position: absolute; top: 12px; left: 12px;
    padding: 4px 12px; border-radius: 20px;
    font-size: 0.75rem; font-weight: 600;
    text-transform: uppercase;
}
.badge-new { background: var(--color-success); color: white; }
.badge-hot { background: var(--color-danger); color: white; }
.badge-sale { background: var(--color-accent); color: white; }
.product-card-body { padding: 20px; }
.product-card-cat { font-size: 0.8rem; color: var(--color-accent); font-weight: 500; margin-bottom: 6px; }
.product-card-title {
    font-family: var(--font-heading);
    font-size: 1rem; font-weight: 600;
    margin-bottom: 8px; line-height: 1.4;
}
.product-card-title a { color: var(--color-primary); }
.product-card-title a:hover { color: var(--color-accent); }
.product-card-price {
    font-family: var(--font-heading);
    font-size: 1.1rem; font-weight: 700;
    color: var(--color-accent);
}
.product-card-price .contact { font-size: 0.85rem; color: var(--color-text-muted); font-weight: 400; }

/* --- Project Cards --- */
.project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 24px; }
.project-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
    box-shadow: var(--shadow-md);
}
.project-card img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.5s ease;
}
.project-card:hover img { transform: scale(1.08); }
.project-card-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(27,42,74,0.9) 0%, transparent 60%);
    display: flex; flex-direction: column; justify-content: flex-end;
    padding: 24px; color: white; transition: var(--transition);
}
.project-card-type {
    font-size: 0.75rem; font-weight: 600;
    color: var(--color-accent); text-transform: uppercase;
    letter-spacing: 1px; margin-bottom: 6px;
}
.project-card-title { font-family: var(--font-heading); font-size: 1.2rem; font-weight: 700; }
.project-card-location { font-size: 0.85rem; opacity: 0.8; margin-top: 4px; }

/* --- Section Styles --- */
.section { padding: 80px 0; }
.section-dark { background: var(--color-primary); color: var(--color-white); }
.section-dark h2, .section-dark h3 { color: var(--color-white); }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 { margin-bottom: 12px; }
.section-header p { color: var(--color-text-muted); max-width: 600px; margin: 0 auto; }
.section-header .accent-line {
    width: 60px; height: 3px; background: var(--color-accent);
    margin: 16px auto 0; border-radius: 2px;
}

/* --- Footer --- */
.site-footer {
    background: var(--color-primary);
    color: rgba(255,255,255,0.8);
    padding: 60px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}
.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem; font-weight: 700;
    color: var(--color-white);
    letter-spacing: 2px;
}
.site-footer p { font-size: 0.9rem; margin-top: 12px; line-height: 1.6; }
.footer-social { display: flex; gap: 12px; margin-top: 16px; }
.footer-social a {
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    color: var(--color-white);
    transition: var(--transition);
}
.footer-social a:hover { background: var(--color-accent); }
.footer-widget-title { color: var(--color-white); font-size: 1rem; margin-bottom: 16px; font-weight: 600; }
.footer-widget ul { list-style: none; }
.footer-widget ul li { margin-bottom: 8px; }
.footer-widget ul a { color: rgba(255,255,255,0.7); font-size: 0.9rem; }
.footer-widget ul a:hover { color: var(--color-accent); }
.footer-bottom {
    margin-top: 40px; padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center; font-size: 0.85rem;
}

/* --- Mobile Sticky CTA --- */
.mobile-sticky-cta {
    display: none;
    position: fixed; bottom: 0; left: 0; right: 0;
    z-index: 999;
    background: var(--color-white);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    padding: 8px 12px;
    gap: 8px;
}
.mobile-sticky-cta a {
    flex: 1; text-align: center; padding: 10px;
    border-radius: var(--radius); font-weight: 600;
    font-size: 0.85rem; text-decoration: none;
}
.cta-call { background: var(--color-success); color: white; }
.cta-zalo { background: #008FE5; color: white; }
.cta-quote { background: var(--color-accent); color: white; }

/* --- Mobile Responsive --- */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .hero-stats { gap: 24px; }
}

@media (max-width: 768px) {
    .main-navigation { display: none; }
    .mobile-menu-toggle { display: block; }
    .hotline-btn span { display: none; }
    .mobile-sticky-cta { display: flex; }
    
    .hero-section { min-height: 50vh; }
    .hero-content { text-align: center; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; }
    
    .product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .project-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .footer-social { justify-content: center; }
    
    .section { padding: 48px 0; }
    
    body { padding-bottom: 60px; }
}

@media (max-width: 480px) {
    .product-grid { grid-template-columns: 1fr; }
    .product-card-body { padding: 14px; }
}

/* --- Mobile Menu --- */
.mobile-menu {
    display: none;
    position: fixed; top: 0; right: -100%; bottom: 0;
    width: 80%; max-width: 360px;
    background: var(--color-white);
    z-index: 1001;
    padding: 24px;
    box-shadow: var(--shadow-xl);
    transition: right 0.3s ease;
    overflow-y: auto;
}
.mobile-menu.active { right: 0; display: block; }
.mobile-nav-menu { list-style: none; }
.mobile-nav-menu li { border-bottom: 1px solid var(--color-border); }
.mobile-nav-menu a {
    display: block; padding: 14px 0;
    font-family: var(--font-heading);
    font-weight: 500; font-size: 1rem;
}
.mobile-menu-actions { margin-top: 24px; }
.mobile-menu-actions .btn { width: 100%; justify-content: center; }

/* --- Pagination --- */
.nav-links { display: flex; justify-content: center; gap: 8px; margin-top: 40px; }
.nav-links a, .nav-links span {
    padding: 8px 16px; border-radius: var(--radius);
    font-weight: 500;
}
.nav-links a { background: var(--color-surface); box-shadow: var(--shadow-sm); }
.nav-links a:hover { background: var(--color-accent); color: white; }
.nav-links span.current { background: var(--color-accent); color: white; }

/* --- Breadcrumb --- */
.breadcrumb {
    padding: 16px 0; font-size: 0.85rem;
    color: var(--color-text-muted);
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb span { margin: 0 8px; }

/* ============================================
   ENHANCED STYLES v1.1 — Blog, About, Contact, Animations
   ============================================ */

/* --- Post Grid (Blog Listing) --- */
.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
    padding: 24px 0 40px;
}

/* --- Blog Card --- */
.blog-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
    display: flex;
    flex-direction: column;
}
.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}
.blog-card-image {
    overflow: hidden;
    aspect-ratio: 16/10;
    background: var(--color-bg);
}
.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.blog-card:hover .blog-card-image img {
    transform: scale(1.06);
}
.blog-card-body {
    padding: 20px 22px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.blog-card-body h3 {
    font-size: 1.05rem;
    margin-bottom: 10px;
    line-height: 1.45;
}
.blog-card-body h3 a {
    color: var(--color-primary);
    text-decoration: none;
}
.blog-card-body h3 a:hover {
    color: var(--color-accent);
}
.blog-card-excerpt {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.65;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.btn-sm {
    padding: 8px 18px;
    font-size: 0.85rem;
}

/* --- Single Post Layout --- */
.single-post-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    align-items: start;
}
.single-post-content .post-meta {
    display: flex;
    gap: 18px;
    color: var(--color-text-muted);
    font-size: 0.88rem;
    margin-bottom: 16px;
}
.single-post-content .post-title {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    margin-bottom: 24px;
    line-height: 1.35;
}
.post-featured-image {
    margin-bottom: 28px;
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.post-featured-image img {
    width: 100%;
    display: block;
}
.post-body {
    font-size: 1.02rem;
    line-height: 1.85;
    color: var(--color-text);
}
.post-body h2 { margin: 36px 0 14px; font-size: 1.45rem; }
.post-body h3 { margin: 28px 0 10px; font-size: 1.15rem; }
.post-body p { margin-bottom: 18px; }
.post-body ul, .post-body ol { margin: 0 0 18px 24px; }
.post-body li { margin-bottom: 6px; }
.post-body img { border-radius: var(--radius); margin: 20px 0; }
.post-body a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 2px; }
.post-body a:hover { color: var(--color-primary); }
.post-body blockquote {
    border-left: 4px solid var(--color-accent);
    padding: 16px 24px;
    background: var(--color-accent-light);
    margin: 24px 0;
    border-radius: 0 var(--radius) var(--radius) 0;
    font-style: italic;
}
.post-tags {
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
    font-size: 0.9rem;
}
.tag-label { font-weight: 600; color: var(--color-primary); margin-right: 8px; }
.post-tags a {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-bg);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin: 2px 4px;
    transition: var(--transition);
}
.post-tags a:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

/* --- Sidebar --- */
.single-post-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 24px);
}
.sidebar-widget {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}
.sidebar-widget-title {
    font-size: 1rem;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-accent);
    color: var(--color-primary);
}
.recent-posts {
    list-style: none;
    padding: 0;
}
.recent-posts li {
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
}
.recent-posts li:last-child { border-bottom: none; }
.recent-posts a {
    color: var(--color-text);
    font-size: 0.9rem;
    line-height: 1.4;
    display: block;
}
.recent-posts a:hover { color: var(--color-accent); }
.recent-date {
    display: block;
    font-size: 0.78rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

/* --- About Page --- */
.about-section { max-width: 800px; margin: 0 auto; }
.about-section h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--color-primary);
}
.about-section h3 {
    font-size: 1.25rem;
    margin: 32px 0 14px;
    color: var(--color-primary);
    position: relative;
    padding-left: 18px;
}
.about-section h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 4px;
    background: var(--color-accent);
    border-radius: 2px;
}
.about-section p { margin-bottom: 16px; line-height: 1.8; }
.about-section ul {
    list-style: none;
    padding: 0;
    margin: 0 0 24px;
}
.about-section ul li {
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    gap: 12px;
    align-items: flex-start;
    line-height: 1.7;
}
.about-section ul li strong {
    color: var(--color-accent);
    min-width: 90px;
    flex-shrink: 0;
}

/* --- Contact Page --- */
.contact-section { max-width: 800px; margin: 0 auto; }
.contact-section h2 { font-size: 2rem; margin-bottom: 20px; color: var(--color-primary); }
.contact-section h3 { font-size: 1.15rem; margin: 32px 0 14px; color: var(--color-primary); }
.contact-section p { margin-bottom: 16px; line-height: 1.8; }
.contact-info {
    background: var(--color-bg);
    padding: 28px;
    border-radius: var(--radius-lg);
    margin-bottom: 32px;
}
.contact-info ul { list-style: none; padding: 0; }
.contact-info li {
    padding: 10px 0;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.contact-info li + li { border-top: 1px solid var(--color-border); }
.contact-form {
    background: var(--color-bg);
    padding: 28px;
    border-radius: var(--radius-lg);
}
.virical-contact-form label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 6px;
    color: var(--color-primary);
}
.virical-contact-form input,
.virical-contact-form textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: var(--font-body);
    transition: var(--transition);
    background: var(--color-white);
    margin-bottom: 18px;
}
.virical-contact-form input:focus,
.virical-contact-form textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(212,168,83,0.15);
}
.virical-contact-form textarea { resize: vertical; min-height: 120px; }
.btn-submit {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    background: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.btn-submit:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* --- Scroll Animations --- */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* --- Enhanced Product Card --- */
.product-card-image { overflow: hidden; }
.product-card-image img { transition: transform 0.5s ease; }
.product-card:hover .product-card-image img { transform: scale(1.08); }

/* --- Enhanced Project Card --- */
.project-card { overflow: hidden; border-radius: var(--radius-lg); }
.project-card img { transition: transform 0.5s ease; }
.project-card:hover img { transform: scale(1.08); }

/* --- Page Header (for Tin tuc etc) --- */
.page-header {
    text-align: center;
    padding: 48px 0 16px;
}
.page-header h1 {
    font-size: 2rem;
    margin-bottom: 8px;
}
.page-header p {
    color: var(--color-text-muted);
}

/* --- Responsive Enhancements --- */
@media (max-width: 1024px) {
    .single-post-layout {
        grid-template-columns: 1fr;
    }
    .single-post-sidebar {
        position: static;
    }
}
@media (max-width: 768px) {
    .post-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .about-section ul li {
        flex-direction: column;
        gap: 4px;
    }
    .about-section ul li strong { min-width: unset; }
    .contact-info, .contact-form { padding: 20px; }
    .single-post-content .post-title { font-size: 1.4rem; }
    .page-header h1 { font-size: 1.5rem; }
}