/* --- Root Variables and Global Styles --- */
:root {
    --primary-gradient: linear-gradient(135deg, #8b5cf6, #a855f7, #c084fc);
    --secondary-gradient: linear-gradient(135deg, #3b82f6, #1d4ed8);
    --accent-gradient: linear-gradient(135deg, #6366f1, #4f46e5);
    --light-gradient: linear-gradient(135deg, #ffffff, #f8fafc, #f1f5f9);
    --primary-color: #8b5cf6;
    --secondary-color: #3b82f6;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: #f8fafc;
    overflow-x: hidden;
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(139, 92, 246, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo img { height: 40px; width: auto; }
.nav-menu { display: flex; list-style: none; gap: 2rem; align-items: center; }
.nav-link { text-decoration: none; color: var(--text-secondary); font-weight: 500; transition: color 0.3s ease; position: relative; }
.nav-link:hover, .nav-link.active { color: var(--primary-color); }
.nav-link.active::after { content: ''; position: absolute; bottom: -5px; left: 0; width: 100%; height: 2px; background: var(--primary-color); border-radius: 1px; }
.nav-cta { background: var(--primary-gradient); color: white !important; padding: 0.75rem 1.5rem; border-radius: 8px; text-decoration: none; font-weight: 600; transition: all 0.3s ease; box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3); }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4); }
.mobile-menu-btn { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--text-secondary); }

/* --- Hero Section --- */
.blog-hero { margin-top: 80px; padding: 6rem 2rem 4rem; background: var(--light-gradient); position: relative; overflow: hidden; }
.blog-hero::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%238b5cf6" stroke-width="0.5" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>'); }
.hero-bg-elements { position: absolute; top: 0; left: 0; right: 0; bottom: 0; overflow: hidden; z-index: 1; }
.bg-circle { position: absolute; border-radius: 50%; background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(168, 85, 247, 0.05) 100%); }
.bg-circle-1 { width: 300px; height: 300px; top: -150px; right: -150px; }
.bg-circle-2 { width: 200px; height: 200px; bottom: -100px; left: -100px; }
.hero-content { max-width: 1200px; margin: 0 auto; text-align: center; position: relative; z-index: 2; }
.hero-badge { display: inline-flex; align-items: center; gap: 0.5rem; background: rgba(139, 92, 246, 0.1); color: var(--primary-color); padding: 0.75rem 1.5rem; border-radius: 50px; border: 1px solid rgba(139, 92, 246, 0.2); font-weight: 600; font-size: 0.9rem; margin-bottom: 2rem; backdrop-filter: blur(10px); animation: float 6s ease-in-out infinite; }
.hero-title { font-size: 4rem; font-weight: 900; color: var(--text-primary); margin-bottom: 1.5rem; line-height: 1.1; background: linear-gradient(135deg, #1e293b 0%, var(--primary-color) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-subtitle { font-size: 1.3rem; color: var(--text-secondary); max-width: 800px; margin: 0 auto 3rem; font-weight: 400; }
.hero-stats { display: flex; justify-content: center; gap: 3rem; margin-bottom: 3rem; }
.hero-stat-number { font-size: 2.5rem; font-weight: 800; color: var(--primary-color); display: block; }
.hero-stat-label { font-size: 0.9rem; color: var(--text-secondary); font-weight: 500; }

/* --- Filter Section --- */
.filter-section { max-width: 1200px; margin: -3rem auto 4rem; padding: 0 2rem; position: relative; z-index: 3; }
.filter-card { background: white; border-radius: 20px; padding: 2rem; box-shadow: 0 25px 60px rgba(139, 92, 246, 0.08); border: 1px solid rgba(139, 92, 246, 0.1); }
.filter-tabs { display: flex; gap: 1rem; margin-bottom: 2rem; flex-wrap: wrap; justify-content: center; }
.filter-tab { background: #f1f5f9; color: var(--text-secondary); padding: 0.75rem 1.5rem; border-radius: 50px; border: none; font-weight: 600; cursor: pointer; transition: all 0.3s ease; font-family: 'Inter', sans-serif; }
.filter-tab.active { background: var(--primary-gradient); color: white; box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3); }
.filter-tab:hover:not(.active) { background: #e2e8f0; transform: translateY(-2px); }
.search-container { position: relative; max-width: 500px; margin: 0 auto; }
.search-input { width: 100%; padding: 1rem 1rem 1rem 3rem; border: 2px solid #e2e8f0; border-radius: 50px; font-size: 1rem; background: #f8fafc; transition: all 0.3s ease; font-family: 'Inter', sans-serif; }
.search-input:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1); background: white; }
.search-icon { position: absolute; left: 1rem; top: 50%; transform: translateY(-50%); color: #94a3b8; font-size: 1.1rem; }

/* --- Blog Grid & Cards --- */
.blog-section { max-width: 1200px; margin: 0 auto; padding: 4rem 2rem; }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); gap: 2rem; margin-bottom: 4rem; }
.blog-card { background: white; border-radius: 20px; overflow: hidden; box-shadow: 0 10px 40px rgba(139, 92, 246, 0.08); transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); border: 1px solid rgba(139, 92, 246, 0.05); position: relative; cursor: pointer; }
.blog-card:hover { transform: translateY(-8px); box-shadow: 0 25px 60px rgba(139, 92, 246, 0.15); }
.blog-card.featured { grid-column: span 2; display: grid; grid-template-columns: 1fr 1fr; min-height: 400px; }
.blog-image { width: 100%; height: 250px; object-fit: cover; transition: transform 0.4s ease; }
.blog-card.featured .blog-image { height: 100%; }
.blog-card:hover .blog-image { transform: scale(1.05); }
.blog-content { padding: 2rem; }
.blog-meta { display: flex; gap: 1rem; margin-bottom: 1rem; align-items: center; }
.blog-category { background: var(--primary-gradient); color: white; padding: 0.25rem 0.75rem; border-radius: 20px; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; }
.blog-date { color: var(--text-secondary); font-size: 0.85rem; font-weight: 500; }
.blog-title { font-size: 1.5rem; font-weight: 800; margin-bottom: 1rem; line-height: 1.3; }
.blog-card.featured .blog-title { font-size: 2rem; }
.blog-excerpt { color: var(--text-secondary); font-size: 1rem; margin-bottom: 1.5rem; }
.blog-author { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.5rem; }
.author-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--primary-gradient); display: flex; align-items: center; justify-content: center; color: white; font-weight: 600; }
.author-name { font-weight: 600; }
.author-title { color: var(--text-secondary); font-size: 0.8rem; }
.read-more { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--primary-color); text-decoration: none; font-weight: 600; transition: all 0.3s ease; }
.read-more:hover { transform: translateX(5px); }

/* --- CTA Section --- */
.cta-background { background: var(--primary-gradient); }
.cta-section { text-align: center; color: white; padding: 4rem 1rem; }
.cta-section .section-title { color: white !important; font-size: 2.5rem; font-family: 'DM Sans', sans-serif; }
.cta-section p { color: rgba(255, 255, 255, 0.9) !important; font-family: 'DM Sans', sans-serif; font-size: 1.1rem; margin: 1rem auto 2rem; max-width: 600px; }
.cta-button { background: white; color: var(--primary-color); padding: 1rem 2.5rem; border-radius: 50px; text-decoration: none; font-weight: 700; transition: all 0.3s ease; }
.cta-button:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(0,0,0,0.2); }


/* --- Load More Button --- */
.load-more { text-align: center; margin: 4rem 0; }
.load-more-btn { background: white; color: var(--primary-color); border: 2px solid var(--primary-color); padding: 1rem 2.5rem; border-radius: 50px; font-weight: 700; cursor: pointer; transition: all 0.3s ease; font-size: 1rem; }
.load-more-btn:hover { background: var(--primary-color); color: white; transform: translateY(-2px); box-shadow: 0 8px 25px rgba(139, 92, 246, 0.3); }

/* --- Footer --- */
.footer { background: #ffffff; color: #cbd5e1; padding: 4rem 2rem 2rem; }
.footer-content { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2rem; margin-bottom: 3rem; }
.footer-brand p { margin-top: 1rem; line-height: 1.7; max-width: 300px; }
.footer-section h4 { color: white; font-family: 'DM Sans', sans-serif; font-size: 20px; font-weight: 400; margin-bottom: 1rem; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 0.75rem; }
.footer-links a { text-decoration: none; color: #cbd5e1; transition: color 0.3s ease; }
.footer-links a:hover { color: var(--primary-color); }
.footer-bottom { text-align: center; border-top: 1px solid #334155; padding-top: 2rem; font-size: 0.9rem; }


/* --- Animations --- */
@keyframes float { 0%, 100% { transform: translateY(0px); } 50% { transform: translateY(-10px); } }
.fade-in { opacity: 0; transform: translateY(20px); animation: fadeInUp 0.6s ease forwards; }
@keyframes fadeInUp { to { opacity: 1; transform: translateY(0); } }
.scroll-reveal { opacity: 0; transform: translateY(30px); transition: all 0.6s ease; }
.scroll-reveal.revealed { opacity: 1; transform: translateY(0); }

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .blog-card.featured { grid-column: span 1; grid-template-columns: 1fr; }
    .blog-card.featured .blog-image { height: 250px; }
}

@media (max-width: 768px) {
    .mobile-menu-btn { display: block; }
    .nav-menu { display: none; } /* Needs JS to toggle */
    .hero-title { font-size: 2.5rem; }
    .hero-stats { flex-direction: column; gap: 1.5rem; }
    .blog-grid { grid-template-columns: 1fr; }
}