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

:root {
    --primary: #1dbf73;
    --primary-dark: #19a463;
    --secondary: #ff6b35;
    --bg-primary: #ffffff;
    --bg-secondary: #f7f7f7;
    --bg-tertiary: #fafafa;
    --text-primary: #222222;
    --text-secondary: #62646a;
    --border: #e4e5e7;
    --shadow: rgba(0, 0, 0, 0.1);
    --card-bg: #ffffff;
}

[data-theme="dark"] {
    --primary: #1dbf73;
    --primary-dark: #19a463;
    --secondary: #ff6b35;
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #1c2128;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --border: #30363d;
    --shadow: rgba(0, 0, 0, 0.4);
    --card-bg: #161b22;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background 0.3s, color 0.3s;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.navbar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background 0.3s, border 0.3s;
}

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

.nav-left {
    display: flex;
    align-items: center;
    gap: 24px;
    flex: 1;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    white-space: nowrap;
}

.search-bar {
    display: flex;
    max-width: 500px;
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.search-bar input {
    flex: 1;
    padding: 10px 16px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    outline: none;
}

.search-btn {
    padding: 10px 16px;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.theme-toggle:hover {
    background: var(--bg-tertiary);
}

.theme-icon::before {
    content: '☀️';
    font-size: 20px;
}

[data-theme="dark"] .theme-icon::before {
    content: '🌙';
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    white-space: nowrap;
}

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

.btn-outline, .btn-primary, .btn-search, .btn-cta {
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
}

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

.btn-outline:hover {
    background: var(--bg-secondary);
}

.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.mobile-menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

.mobile-menu-toggle svg {
    stroke: var(--text-primary);
}

.mobile-menu {
    display: none;
    flex-direction: column;
    background: var(--card-bg);
    border-top: 1px solid var(--border);
    padding: 16px;
    gap: 12px;
}

.mobile-menu.active {
    display: flex;
}

.mobile-menu a {
    padding: 12px;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    border-radius: 8px;
    transition: background 0.3s;
}

.mobile-menu a:hover {
    background: var(--bg-secondary);
}

.hero {
    padding: 80px 0;
    background: linear-gradient(rgba(29, 191, 115, 0.85), rgba(29, 191, 115, 0.85)), url('https://images.unsplash.com/photo-1522071820081-009f0129c71c?w=1600&h=600&fit=crop') center/cover;
    text-align: center;
    position: relative;
}

[data-theme="dark"] .hero {
    background: linear-gradient(rgba(13, 17, 23, 0.9), rgba(13, 17, 23, 0.9)), url('https://images.unsplash.com/photo-1522071820081-009f0129c71c?w=1600&h=600&fit=crop') center/cover;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content h1,
.hero-content > p {
    color: white;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.hero-content > p {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.hero-search {
    display: flex;
    max-width: 700px;
    margin: 0 auto 24px;
    background: var(--card-bg);
    border: 2px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px var(--shadow);
}

.hero-search input {
    flex: 1;
    padding: 18px 24px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 16px;
    outline: none;
}

.btn-search {
    background: var(--primary);
    color: white;
    border: none;
    padding: 18px 40px;
    font-size: 16px;
}

.btn-search:hover {
    background: var(--primary-dark);
}

.popular-searches {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.popular-searches span {
    color: var(--text-secondary);
    font-weight: 600;
}

.popular-searches a {
    color: var(--text-primary);
    text-decoration: none;
    padding: 6px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 14px;
    transition: all 0.3s;
}

.popular-searches a:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.categories {
    padding: 80px 0;
}

h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 32px;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.category-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow);
    border-color: var(--primary);
}

.category-icon {
    width: 64px;
    height: 64px;
    background: var(--bg-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.category-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--primary);
}

.category-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.category-card p {
    color: var(--text-secondary);
    font-size: 14px;
}

.featured-services, .top-sellers {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.view-all {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.view-all:hover {
    text-decoration: underline;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow);
}

.service-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    position: relative;
    overflow: hidden;
}

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

.service-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--secondary);
    color: white;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.service-info {
    padding: 16px;
}

.seller-info {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.seller-avatar {
    width: 32px;
    height: 32px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 14px;
}

.seller-name {
    font-weight: 600;
    font-size: 14px;
}

.service-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.4;
}

.service-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.service-rating {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
}

.star {
    color: #ffb33e;
}

.service-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.service-price span {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 400;
}

.how-it-works {
    padding: 80px 0;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 48px;
}

.step {
    text-align: center;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 700;
    margin: 0 auto 24px;
}

.step h3 {
    font-size: 24px;
    margin-bottom: 12px;
}

.step p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.top-sellers {
    padding: 80px 0;
}

.sellers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 24px;
}

.seller-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.seller-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow);
}

.seller-card-avatar {
    width: 80px;
    height: 80px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
    font-weight: 700;
    margin: 0 auto 16px;
}

.seller-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.seller-role {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 12px;
}

.seller-stats {
    display: flex;
    justify-content: center;
    gap: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.seller-stat {
    text-align: center;
}

.seller-stat strong {
    display: block;
    font-size: 18px;
    color: var(--primary);
}

.seller-stat span {
    font-size: 12px;
    color: var(--text-secondary);
}

.cta {
    padding: 80px 0;
    background: var(--primary);
    text-align: center;
}

.cta-content h2 {
    font-size: 40px;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
}

.btn-cta {
    background: white;
    color: var(--primary);
    padding: 16px 40px;
    font-size: 18px;
}

.btn-cta:hover {
    background: var(--bg-secondary);
}

.footer {
    background: var(--bg-secondary);
    padding: 60px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
}

.footer-col p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

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

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
}

.footer-bottom a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.footer-bottom a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .nav-left { flex-direction: column; align-items: flex-start; gap: 12px; }
    .search-bar { max-width: 100%; }
    .nav-right .nav-link,
    .nav-right .btn-outline,
    .nav-right .btn-primary { display: none; }
    .mobile-menu-toggle { display: flex; }
    .hero-content h1 { font-size: 32px; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-search { flex-direction: column; }
    .btn-search { width: 100%; border-radius: 8px; }
    .popular-searches { justify-content: flex-start; }
    .logo { font-size: 24px; }
}

@media (max-width: 480px) {
    .logo { font-size: 20px; }
    .hero-content h1 { font-size: 28px; }
    .hero-content > p { font-size: 16px; }
    .categories-grid, .services-grid, .sellers-grid { grid-template-columns: 1fr; }
    .service-card, .seller-card { max-width: 100%; }
}