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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    transition: background-color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3rem;
    font-weight: 700;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.75rem;
}

p {
    margin-bottom: 1rem;
    color: var(--color-text-secondary);
}

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

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 700;
}

.language-switcher {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1000;
    display: flex;
    gap: 0.5rem;
    background: var(--color-surface);
    padding: 0.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.lang-btn {
    padding: 0.5rem 1rem;
    border: none;
    background: transparent;
    color: var(--color-text);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.lang-btn.active {
    background: var(--color-primary);
    color: white;
}

.announcement-bar {
    background: var(--color-primary-dark);
    color: white;
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 999;
}

.announcement-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.announcement-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
    margin-left: 1rem;
}

.announcement-link:hover {
    color: var(--color-secondary);
}

.hero {
    padding: 4rem 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
}

.hero-bg {
    position: relative;
    height: 500px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--gradient-card);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-bg::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0.1;
}

.inner {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--color-primary);
    color: var(--color-bg);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin: 2.5rem 0;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--color-surface);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-card i {
    font-size: 2rem;
    color: var(--color-primary);
}

.stat-number {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.25rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-top: 3rem;
}

.btn-primary,
.btn-secondary {
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 2px solid transparent;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-bg);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--glow-primary);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-hover);
    transform: translateY(-3px);
}

.categories-section,
.tech-showcase,
.quick-resources,
.coding-challenges,
.community-section {
    padding: 4rem 0;
    border-bottom: 1px solid var(--color-border);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.section-subtitle {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.categories-grid,
.showcase-grid,
.resources-grid,
.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.category-card,
.showcase-card,
.challenge-card,
.resource-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    padding: 2rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    text-decoration: none;
    color: var(--color-text);
}

.category-card:hover,
.resource-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.category-icon {
    background: var(--gradient-card);
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.category-icon i {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.category-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.category-content p {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.category-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--color-primary);
    color: var(--color-bg);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ai-card .category-icon { background: rgba(126, 255, 245, 0.1); }
.web-card .category-icon { background: rgba(209, 255, 110, 0.1); }
.mobile-card .category-icon { background: rgba(255, 209, 102, 0.1); }
.data-card .category-icon { background: rgba(120, 79, 182, 0.1); }

.showcase-visual {
    height: 200px;
    background: var(--gradient-card);
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.showcase-visual:hover{
  animation: energy-pulse 1s ease-in-out;
}
.visual-icon {
    width: 80px;
    height: 80px;
    background: var(--color-surface);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-icon i {
    font-size: 2rem;
    color: var(--color-primary);
}

.showcase-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.showcase-content p {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.tech-stack {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tech-tag {
    padding: 0.25rem 0.75rem;
    background: var(--color-surface);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--color-border);
}

.resource-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.resource-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-card);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.resource-icon i {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.resource-badge {
    padding: 0.25rem 0.75rem;
    background: var(--color-primary);
    color: var(--color-bg);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.resource-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.resource-content p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.challenges-header {
    text-align: center;
    margin-bottom: 3rem;
}

.challenge-card {
    position: relative;
    overflow: hidden;
}

.challenge-difficulty {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.challenge-difficulty.easy {
    background: rgba(158, 240, 26, 0.1);
    color: var(--color-success);
}

.challenge-difficulty.medium {
    background: rgba(255, 209, 102, 0.1);
    color: var(--color-accent);
}

.challenge-difficulty.hard {
    background: rgba(255, 94, 108, 0.1);
    color: var(--color-danger);
}

.challenge-card h3 {
    font-size: 1.5rem;
    margin: 0.5rem 0;
    color: var(--color-text);
}

.challenge-card p {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.challenge-stats {
    display: flex;
    justify-content: space-between;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.challenge-btn {
    width: 100%;
    padding: 0.75rem 1.5rem;
    background: var(--color-primary);
    color: var(--color-bg);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.challenge-btn:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}

.view-all-btn {
    display: inline-block;
    text-align: center;
    padding: 1rem 2rem;
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    grid-column: 1 / -1;
    margin-top: 2rem;
}

.view-all-btn:hover {
    border-color: var(--color-primary);
    background: var(--color-hover);
}

.community-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.community-content {
    text-align: left;
}

.community-features {
    display: flex;
    gap: 2rem;
    margin: 2.5rem 0;
}

.community-feature {
    text-align: center;
}

.feature-count {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.feature-label {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.community-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.btn-community,
.btn-outline {
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-community {
    background: var(--gradient-primary);
    color: var(--color-bg);
    border: none;
}

.btn-community:hover {
    transform: translateY(-3px);
    box-shadow: var(--glow-primary);
}

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

.btn-outline:hover {
    background: var(--color-hover);
    transform: translateY(-3px);
}

.community-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.avatar-item {
    width: 100px;
    height: 100px;
    background: var(--gradient-card);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border: 3px solid var(--color-surface);
}

.avatar-item.more {
    background: var(--color-primary);
    color: var(--color-bg);
    font-weight: 600;
    font-size: 1.25rem;
}

.avatar-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.site-footer {
    background: var(--color-surface);
    color: var(--color-text);
    padding: 4rem 0 2rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-section h4 {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.footer-section a {
    display: block;
    color: var(--color-text-secondary);
    margin-bottom: 0.75rem;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.footer-logo-mark {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.footer-description {
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    background: var(--color-card);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    text-decoration: none;
    transition: all var(--transition-fast);
}

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

.footer-bottom {
    max-width: 1280px;
    margin: 3rem auto 0;
    padding: 2rem 2rem 0;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-legal {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.875rem;
}

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

.footer-locations {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-surface);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}