/* ========================================
   Variables & Reset
   ======================================== */
:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --secondary: #f59e0b;
    --accent: #8b5cf6;
    --text: #1f2937;
    --text-light: #6b7280;
    --bg: #ffffff;
    --bg-secondary: #f9fafb;
    --border: #e5e7eb;
    --shadow: rgba(0, 0, 0, 0.1);
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

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

body {
    font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

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

/* ========================================
   Layout
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.main-content {
    min-height: calc(100vh - 400px);
}

/* ========================================
   Header & Navigation
   ======================================== */
.site-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px var(--shadow);
}

.navbar {
    padding: 1rem 0;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

.logo-icon {
    font-size: 2rem;
}

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

.nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--text);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 1.5rem;
    height: 2px;
    background: var(--text);
    transition: all 0.3s ease;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-background {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    padding: 4rem 2rem;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.gradient-text {
    background: linear-gradient(to right, #fff, #e0e7ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 2rem;
    font-weight: 400;
    opacity: 0.95;
}

.hero-description {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    line-height: 1.8;
    opacity: 0.9;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
}

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

/* ========================================
   Sections
   ======================================== */
.section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    text-align: center;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.view-all {
    color: var(--primary);
    font-weight: 600;
    transition: gap 0.3s ease;
}

.view-all:hover {
    gap: 0.5rem;
}

/* ========================================
   Cards
   ======================================== */
.cards-grid,
.projects-grid,
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.card,
.project-card,
.blog-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 12px var(--shadow);
    transition: all 0.3s ease;
}

.card:hover,
.project-card:hover,
.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.card h3,
.project-card h3,
.blog-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text);
}

.card p {
    color: var(--text-light);
}

/* ========================================
   Projects
   ======================================== */
.project-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.project-date {
    color: var(--text-light);
    font-size: 0.875rem;
}

.project-summary {
    color: var(--text-light);
    margin-bottom: 1rem;
}

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

.tag {
    background: var(--bg-secondary);
    color: var(--text);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
}

/* ========================================
   Blog
   ======================================== */
.blog-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

.category {
    background: var(--primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
}

.read-more {
    display: inline-block;
    margin-top: 1rem;
    color: var(--primary);
    font-weight: 600;
}

/* ========================================
   Article Page
   ======================================== */
.article {
    padding: 4rem 0;
}

.article-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

.article-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.article-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    color: var(--text-light);
}

.separator {
    opacity: 0.5;
}

.article-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.125rem;
    line-height: 1.8;
}

.article-content h2 {
    font-size: 2rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.article-content h3 {
    font-size: 1.5rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content ul,
.article-content ol {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.article-content code {
    background: var(--bg-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-family: 'Courier New', monospace;
}

.article-content pre {
    background: #1e1e1e;
    color: #d4d4d4;
    padding: 1.5rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

.article-content pre code {
    background: none;
    padding: 0;
}

/* ========================================
   List Pages
   ======================================== */
.list-page {
    padding: 4rem 0;
}

.page-header {
    text-align: center;
    margin-bottom: 4rem;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-description {
    font-size: 1.25rem;
    color: var(--text-light);
}

.blog-item,
.project-item,
.changelog-item {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 2px 8px var(--shadow);
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

.blog-item:hover,
.project-item:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.blog-item h2,
.project-item h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.blog-item-meta,
.project-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

.summary {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.changelog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border);
}

.changelog-content h3 {
    color: var(--primary);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.changelog-content ul {
    margin-left: 2rem;
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
    background: #1f2937;
    color: #d1d5db;
    padding: 3rem 0 1.5rem;
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #d1d5db;
}

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

.mythology-quote {
    font-style: italic;
    color: #9ca3af;
    margin-top: 1rem;
    font-size: 0.875rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #9ca3af;
}

/* Visitor Map Widget */
.visitor-map-widget {
    margin-top: 1rem;
}

.visitor-map-widget h4 {
    color: white;
    margin-bottom: 1rem;
}

.map-container {
    border-radius: 0.5rem;
    overflow: hidden;
}

.map-container img {
    width: 100%;
    height: auto;
    display: block;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-menu.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        padding: 1rem;
        box-shadow: 0 4px 12px var(--shadow);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .container {
        padding: 0 1rem;
    }
}