/* ============================================
   BLOG HEWAN - MAIN STYLESHEET
   Modern, Eye-Catching, Mobile Responsive
   ============================================ */

/* ============ CSS VARIABLES ============ */
:root {
    /* Primary Colors */
    --primary: #FF6B35;
    --primary-dark: #E55A2B;
    --primary-light: #FF8C5A;
    --secondary: #2EC4B6;
    --secondary-dark: #1A9E91;
    --accent: #FFB800;
    --accent-dark: #E6A600;
    
    /* Neutral Colors */
    --dark: #1A1A2E;
    --dark-secondary: #16213E;
    --gray-900: #212529;
    --gray-800: #343A40;
    --gray-700: #495057;
    --gray-600: #6C757D;
    --gray-500: #ADB5BD;
    --gray-400: #CED4DA;
    --gray-300: #DEE2E6;
    --gray-200: #E9ECEF;
    --gray-100: #F8F9FA;
    --white: #FFFFFF;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #FF6B35 0%, #FF8C5A 100%);
    --gradient-secondary: linear-gradient(135deg, #2EC4B6 0%, #1A9E91 100%);
    --gradient-dark: linear-gradient(135deg, #1A1A2E 0%, #16213E 100%);
    --gradient-accent: linear-gradient(135deg, #FFB800 0%, #FF8C5A 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.16);
    --shadow-xl: 0 12px 36px rgba(0,0,0,0.20);
    --shadow-primary: 0 8px 24px rgba(255,107,53,0.3);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 50%;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Typography */
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 20px;
    
    /* Spacing */
    --section-padding: 80px;
    --section-padding-mobile: 50px;
}

/* ============ DARK MODE VARIABLES ============ */
[data-theme="dark"] {
    --dark: #F8F9FA;
    --dark-secondary: #E9ECEF;
    --gray-900: #E9ECEF;
    --gray-800: #DEE2E6;
    --gray-700: #CED4DA;
    --gray-600: #ADB5BD;
    --gray-500: #6C757D;
    --gray-400: #495057;
    --gray-300: #343A40;
    --gray-200: #2D2D3D;
    --gray-100: #1A1A2E;
    --white: #16213E;
    
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
    --shadow-xl: 0 12px 36px rgba(0,0,0,0.6);
}

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

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

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-900);
    background: var(--gray-100);
    overflow-x: hidden;
    transition: background var(--transition-base), color var(--transition-base);
}

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

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

button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    outline: none;
}

/* ============ TYPOGRAPHY ============ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--gray-900);
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 20px;
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    margin-bottom: 16px;
}

h3 {
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    margin-bottom: 12px;
}

h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

p {
    margin-bottom: 16px;
    color: var(--gray-700);
}

.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-accent { color: var(--accent); }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

/* ============ CONTAINER ============ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--container-padding);
}

/* ============ BUTTONS ============ */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-base);
    text-align: center;
    position: relative;
    overflow: hidden;
}

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

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

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

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

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

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

.btn-lg {
    padding: 16px 36px;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* ============ HEADER & NAVIGATION ============ */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-top {
    background: var(--gradient-dark);
    color: var(--white);
    padding: 8px 0;
    font-size: 0.85rem;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-top a {
    color: var(--white);
    margin-left: 20px;
}

.header-top a:hover {
    color: var(--primary-light);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    width: 45px;
    height: 45px;
    border-radius: var(--radius-sm);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

.logo-text span {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-link {
    color: var(--gray-700);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-base);
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 6px;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--gray-900);
    transition: all var(--transition-base);
    border-radius: 3px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

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

/* ============ HERO SECTION ============ */
.hero {
    padding: var(--section-padding) 0;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    opacity: 0.15;
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: var(--gradient-secondary);
    border-radius: var(--radius-full);
    opacity: 0.1;
    animation: float 8s ease-in-out infinite reverse;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero h1 {
    color: var(--white);
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease;
}

.hero p {
    color: var(--gray-400);
    font-size: clamp(1rem, 2vw, 1.2rem);
    max-width: 700px;
    margin: 0 auto 30px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s both;
}

/* ============ FEATURED ARTICLES ============ */
.featured-section {
    padding: var(--section-padding) 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    position: relative;
    display: inline-block;
    margin-bottom: 15px;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-header p {
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* ============ ARTICLE CARDS ============ */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 30px;
}

.article-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    position: relative;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.article-card-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

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

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

.article-card-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
}

.article-card-content {
    padding: 25px;
}

.article-card-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 12px;
    font-size: 0.85rem;
    color: var(--gray-500);
}

.article-card-meta i {
    margin-right: 5px;
    color: var(--primary);
}

.article-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    line-height: 1.4;
}

.article-card h3 a {
    color: var(--gray-900);
    transition: color var(--transition-fast);
}

.article-card h3 a:hover {
    color: var(--primary);
}

.article-card p {
    color: var(--gray-600);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.article-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--gray-200);
}

.read-more {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: gap var(--transition-fast);
}

.read-more:hover {
    gap: 10px;
}

/* ============ FEATURED ARTICLE (Large) ============ */
.featured-article {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 40px;
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.featured-article-image {
    position: relative;
    overflow: hidden;
    min-height: 400px;
}

.featured-article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-article-content {
    padding: 40px;
}

.featured-article-content h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 15px;
}

.featured-article-content p {
    color: var(--gray-600);
    margin-bottom: 20px;
}

/* ============ CATEGORY PILLS ============ */
.category-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 40px;
}

.category-pill {
    padding: 10px 20px;
    border-radius: var(--radius-full);
    background: var(--white);
    color: var(--gray-700);
    font-weight: 500;
    font-size: 0.9rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: 8px;
}

.category-pill:hover {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-primary);
    transform: translateY(-2px);
}

.category-pill .count {
    background: var(--gray-200);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
}

.category-pill:hover .count {
    background: rgba(255,255,255,0.3);
}

/* ============ ARTICLE PAGE ============ */
.article-page {
    padding: 40px 0;
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
}

.article-main {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.article-header-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.article-header-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-content {
    padding: 40px;
}

.article-content h2 {
    margin-top: 30px;
    margin-bottom: 15px;
}

.article-content h3 {
    margin-top: 25px;
    margin-bottom: 12px;
}

.article-content p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.article-content ul,
.article-content ol {
    margin: 20px 0;
    padding-left: 25px;
}

.article-content li {
    margin-bottom: 10px;
    color: var(--gray-700);
}

.article-content img {
    border-radius: var(--radius-md);
    margin: 20px 0;
}

.article-content blockquote {
    border-left: 4px solid var(--primary);
    padding: 15px 20px;
    margin: 20px 0;
    background: var(--gray-100);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.article-content table th,
.article-content table td {
    padding: 12px;
    border: 1px solid var(--gray-300);
    text-align: left;
}

.article-content table th {
    background: var(--gray-100);
    font-weight: 600;
}

/* Article Meta */
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: 30px;
}

.article-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-600);
    font-size: 0.9rem;
}

.article-meta-item i {
    color: var(--primary);
}

/* ============ SIDEBAR ============ */
.sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-widget {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 25px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 25px;
}

.sidebar-widget h4 {
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--gray-200);
    position: relative;
}

.sidebar-widget h4::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary);
}

.popular-post {
    display: flex;
    gap: 12px;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--gray-200);
}

.popular-post:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.popular-post img {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.popular-post-content h5 {
    font-size: 0.9rem;
    margin-bottom: 5px;
    line-height: 1.4;
}

.popular-post-content h5 a:hover {
    color: var(--primary);
}

.popular-post-content span {
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* ============ ADVERTISEMENT PLACEMENT ============ */
.adsense-container {
    margin: 30px 0;
    text-align: center;
    overflow: hidden;
    border-radius: var(--radius-sm);
}

.adsense-container ins {
    display: block;
    min-height: 90px;
}

/* ============ FOOTER ============ */
.footer {
    background: var(--gradient-dark);
    color: var(--gray-400);
    padding: 60px 0 20px;
    margin-top: var(--section-padding);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer h3 {
    color: var(--white);
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.footer p {
    color: var(--gray-500);
    font-size: 0.9rem;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--gray-500);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.85rem;
    color: var(--gray-600);
}

/* ============ BREADCRUMBS ============ */
.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: var(--gray-600);
}

.breadcrumbs a {
    color: var(--primary);
    transition: color var(--transition-fast);
}

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

.breadcrumbs .separator {
    color: var(--gray-400);
}

.breadcrumbs .current {
    color: var(--gray-700);
    font-weight: 500;
}

/* ============ PAGINATION ============ */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.pagination a,
.pagination span {
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--gray-700);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.pagination a:hover {
    background: var(--primary);
    color: var(--white);
}

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

/* ============ SEARCH BAR ============ */
.search-bar {
    display: flex;
    gap: 10px;
    max-width: 500px;
    margin: 0 auto;
}

.search-bar input {
    flex: 1;
    padding: 14px 20px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.search-bar input:focus {
    border-color: var(--primary);
}

.search-bar button {
    padding: 14px 24px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-base);
}

.search-bar button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

/* ============ LOADING SKELETON ============ */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-300) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Reveal on scroll */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-slow);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ============ RESPONSIVE DESIGN ============ */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
    }
    
    .featured-article {
        grid-template-columns: 1fr;
    }
    
    .featured-article-image {
        min-height: 300px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: var(--section-padding-mobile);
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 20px 20px;
        gap: 20px;
        box-shadow: var(--shadow-xl);
        transition: right var(--transition-base);
        z-index: 999;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        font-size: 1.1rem;
    }
    
    .article-grid {
        grid-template-columns: 1fr;
    }
    
    .article-content {
        padding: 25px;
    }
    
    .featured-article-content {
        padding: 25px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .article-card-content {
        padding: 20px;
    }
    
    .article-meta {
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 0.95rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .article-grid {
        grid-template-columns: 1fr;
    }
    
    .article-card h3 {
        font-size: 1.1rem;
    }
    
    .featured-article-image {
        min-height: 200px;
    }
    
    .article-content {
        padding: 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .search-bar {
        flex-direction: column;
    }
}

/* ============ UTILITY CLASSES ============ */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }
.mt-4 { margin-top: 40px; }
.mt-5 { margin-top: 50px; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }
.mb-4 { margin-bottom: 40px; }
.mb-5 { margin-bottom: 50px; }

.p-0 { padding: 0; }
.p-1 { padding: 10px; }
.p-2 { padding: 20px; }
.p-3 { padding: 30px; }
.p-4 { padding: 40px; }
.p-5 { padding: 50px; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.flex-wrap { flex-wrap: wrap; }

.gap-1 { gap: 10px; }
.gap-2 { gap: 20px; }
.gap-3 { gap: 30px; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.rounded { border-radius: var(--radius-sm); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

.bg-white { background: var(--white); }
.bg-gray { background: var(--gray-100); }
.bg-primary { background: var(--primary); }
.bg-secondary { background: var(--secondary); }