/* ===== READORA - TECH BLOG STYLESHEET ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Playfair+Display:wght@700;800&display=swap');

:root {
  --primary: #1a56db;
  --primary-dark: #1341b0;
  --primary-light: #ebf0ff;
  --accent: #f59e0b;
  --dark: #111827;
  --gray-800: #1f2937;
  --gray-600: #4b5563;
  --gray-400: #9ca3af;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --white: #ffffff;
  --bg: #f9fafb;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.07);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.10);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-sans); background-color: var(--bg); color: var(--gray-800); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* NAVBAR */
.navbar { background: var(--white); border-bottom: 1px solid var(--gray-200); position: sticky; top: 0; z-index: 1000; box-shadow: var(--shadow-sm); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; max-width: 1180px; margin: 0 auto; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-icon { width: 38px; height: 38px; background: var(--primary); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: white; font-weight: 800; font-size: 18px; }
.logo-text { font-size: 1.5rem; font-weight: 800; color: var(--dark); letter-spacing: -0.5px; }
.logo-text span { color: var(--primary); }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a { padding: 8px 16px; border-radius: 8px; font-weight: 500; font-size: 0.93rem; color: var(--gray-600); transition: var(--transition); }
.nav-links a:hover, .nav-links a.active { background: var(--primary-light); color: var(--primary); }
.nav-cta { background: var(--primary) !important; color: var(--white) !important; padding: 8px 20px !important; border-radius: 8px !important; font-weight: 600 !important; }
.nav-cta:hover { background: var(--primary-dark) !important; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(26,86,219,0.3); }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--gray-800); border-radius: 4px; transition: var(--transition); }

/* HERO */
.hero { background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%); padding: 80px 0 0; overflow: hidden; position: relative; }
.hero::before { content: ''; position: absolute; top: -50%; right: -10%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(59,130,246,0.15) 0%, transparent 70%); pointer-events: none; }
.hero-content { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 60px; position: relative; z-index: 1; }
.hero-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(245,158,11,0.15); color: var(--accent); border: 1px solid rgba(245,158,11,0.3); padding: 6px 14px; border-radius: 100px; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase; margin-bottom: 20px; }
.hero-title { font-family: var(--font-serif); font-size: 3.2rem; color: var(--white); line-height: 1.15; margin-bottom: 20px; letter-spacing: -1px; }
.hero-title span { color: #60a5fa; }
.hero-desc { color: rgba(255,255,255,0.7); font-size: 1.05rem; line-height: 1.75; margin-bottom: 32px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary { background: var(--primary); color: white; padding: 14px 28px; border-radius: 10px; font-weight: 600; font-size: 0.95rem; transition: var(--transition); display: inline-flex; align-items: center; gap: 8px; }
.btn-primary:hover { background: #2563eb; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26,86,219,0.4); }
.btn-outline { background: transparent; color: white; padding: 14px 28px; border-radius: 10px; font-weight: 600; font-size: 0.95rem; border: 1.5px solid rgba(255,255,255,0.3); transition: var(--transition); display: inline-flex; align-items: center; gap: 8px; }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.6); }
.hero-img-wrap { position: relative; }
.hero-img-wrap img { width: 100%; height: 400px; object-fit: cover; border-radius: var(--radius-lg) var(--radius-lg) 0 0; box-shadow: var(--shadow-lg); }
.hero-img-badge { position: absolute; bottom: 20px; left: 20px; background: white; border-radius: var(--radius); padding: 12px 18px; display: flex; align-items: center; gap: 10px; box-shadow: var(--shadow-md); }
.hero-img-badge .hib-icon { width: 36px; height: 36px; background: var(--primary-light); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 18px; }
.hero-img-badge p { font-size: 0.75rem; color: var(--gray-600); }
.hero-img-badge strong { font-size: 0.95rem; color: var(--dark); }

/* SECTION HEADERS */
.section-header { text-align: center; margin-bottom: 50px; }
.section-tag { display: inline-block; background: var(--primary-light); color: var(--primary); padding: 5px 14px; border-radius: 100px; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.5px; text-transform: uppercase; margin-bottom: 12px; }
.section-title { font-family: var(--font-serif); font-size: 2.2rem; color: var(--dark); letter-spacing: -0.5px; line-height: 1.25; }
.section-sub { font-size: 1rem; color: var(--gray-600); margin-top: 10px; max-width: 560px; margin-left: auto; margin-right: auto; }

/* CARDS */
.featured { padding: 80px 0; }
.featured-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; }
.card { background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--gray-200); transition: var(--transition); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card img { width: 100%; object-fit: cover; }
.card-main img { height: 300px; }
.card-side img { height: 180px; }
.card-body { padding: 24px; }
.card-tag { display: inline-block; background: var(--primary-light); color: var(--primary); font-size: 0.72rem; font-weight: 700; padding: 4px 10px; border-radius: 6px; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 12px; }
.card-tag.tag-ai { background: #fef3c7; color: #b45309; }
.card-tag.tag-cloud { background: #ecfdf5; color: #065f46; }
.card-tag.tag-security { background: #fff1f2; color: #be123c; }
.card-tag.tag-web { background: #f0fdf4; color: #166534; }
.card-tag.tag-blockchain { background: #faf5ff; color: #7e22ce; }
.card-title { font-family: var(--font-serif); font-size: 1.3rem; color: var(--dark); margin-bottom: 10px; line-height: 1.35; transition: var(--transition); }
.card-main .card-title { font-size: 1.6rem; }
.card-title:hover { color: var(--primary); cursor: pointer; }
.card-excerpt { color: var(--gray-600); font-size: 0.9rem; line-height: 1.65; margin-bottom: 18px; }
.card-meta { display: flex; align-items: center; gap: 14px; font-size: 0.82rem; color: var(--gray-400); }
.card-meta .dot { width: 3px; height: 3px; background: var(--gray-400); border-radius: 50%; }
.card-meta .author { display: flex; align-items: center; gap: 6px; }
.author-avatar { width: 26px; height: 26px; border-radius: 50%; background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%); display: flex; align-items: center; justify-content: center; color: white; font-size: 0.65rem; font-weight: 700; }
.featured-right { display: flex; flex-direction: column; gap: 24px; }

/* TOPICS */
.topics { background: var(--white); border-top: 1px solid var(--gray-200); border-bottom: 1px solid var(--gray-200); padding: 20px 0; }
.topics-inner { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.topic-label { font-size: 0.8rem; font-weight: 700; color: var(--gray-400); text-transform: uppercase; letter-spacing: 0.5px; margin-right: 4px; white-space: nowrap; }
.topic-chip { padding: 7px 16px; border-radius: 100px; border: 1.5px solid var(--gray-200); font-size: 0.83rem; font-weight: 500; color: var(--gray-600); transition: var(--transition); cursor: pointer; white-space: nowrap; }
.topic-chip:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }

/* LATEST */
.latest { padding: 80px 0; }
.articles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.articles-grid .card img { height: 200px; }

/* NEWSLETTER */
.newsletter { background: linear-gradient(135deg, #1e40af 0%, #7c3aed 100%); padding: 80px 0; }
.newsletter-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.newsletter h2 { font-family: var(--font-serif); font-size: 2rem; color: white; margin-bottom: 8px; }
.newsletter p { color: rgba(255,255,255,0.75); font-size: 1rem; }
.newsletter-form { display: flex; gap: 10px; flex-wrap: wrap; min-width: 360px; }
.newsletter-form input { flex: 1; padding: 14px 20px; border-radius: 10px; border: none; font-size: 0.93rem; font-family: var(--font-sans); outline: none; min-width: 200px; }
.newsletter-form button { background: var(--accent); color: white; padding: 14px 28px; border: none; border-radius: 10px; font-weight: 700; font-size: 0.93rem; cursor: pointer; font-family: var(--font-sans); transition: var(--transition); white-space: nowrap; }
.newsletter-form button:hover { background: #d97706; transform: translateY(-1px); }

/* STATS */
.stats { background: var(--white); padding: 60px 0; border-top: 1px solid var(--gray-200); border-bottom: 1px solid var(--gray-200); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat-num { font-family: var(--font-serif); font-size: 2.5rem; color: var(--primary); font-weight: 800; line-height: 1; margin-bottom: 6px; }
.stat-label { font-size: 0.88rem; color: var(--gray-600); font-weight: 500; }

/* BLOG PAGE */
.page-hero { background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%); padding: 70px 0; text-align: center; }
.page-hero h1 { font-family: var(--font-serif); font-size: 2.8rem; color: white; margin-bottom: 12px; }
.page-hero p { color: rgba(255,255,255,0.7); font-size: 1.05rem; }
.search-bar-wrap { max-width: 540px; margin: 28px auto 0; position: relative; }
.search-bar-wrap input { width: 100%; padding: 15px 52px 15px 20px; border-radius: var(--radius); border: none; font-size: 0.95rem; font-family: var(--font-sans); outline: none; box-shadow: var(--shadow-md); }
.search-bar-wrap .search-icon { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); color: var(--gray-400); font-size: 1.1rem; }
.filter-tabs { display: flex; gap: 10px; flex-wrap: wrap; padding: 30px 0 40px; border-bottom: 1px solid var(--gray-200); margin-bottom: 40px; }
.filter-tab { padding: 8px 20px; border-radius: 100px; font-size: 0.87rem; font-weight: 500; border: 1.5px solid var(--gray-200); color: var(--gray-600); cursor: pointer; transition: var(--transition); }
.filter-tab.active, .filter-tab:hover { background: var(--primary); border-color: var(--primary); color: white; }
.blog-layout { display: grid; grid-template-columns: 1fr 320px; gap: 40px; padding: 50px 0 80px; }
.blog-articles { display: flex; flex-direction: column; gap: 32px; }
.article-card { display: grid; grid-template-columns: 280px 1fr; gap: 0; background: var(--white); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--gray-200); box-shadow: var(--shadow-sm); transition: var(--transition); }
.article-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.article-card img { width: 280px; height: 100%; object-fit: cover; min-height: 200px; }
.article-body { padding: 28px; }
.article-title { font-family: var(--font-serif); font-size: 1.35rem; color: var(--dark); margin: 10px 0 12px; line-height: 1.35; transition: var(--transition); }
.article-title:hover { color: var(--primary); cursor: pointer; }
.article-excerpt { color: var(--gray-600); font-size: 0.9rem; line-height: 1.65; margin-bottom: 18px; }
.read-more { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 600; font-size: 0.87rem; transition: var(--transition); }
.read-more:hover { gap: 10px; }

/* SIDEBAR */
.sidebar { display: flex; flex-direction: column; gap: 28px; }
.sidebar-widget { background: var(--white); border-radius: var(--radius-lg); border: 1px solid var(--gray-200); padding: 24px; box-shadow: var(--shadow-sm); }
.widget-title { font-size: 1rem; font-weight: 700; color: var(--dark); margin-bottom: 18px; padding-bottom: 12px; border-bottom: 2px solid var(--primary-light); }
.widget-list li { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--gray-100); font-size: 0.88rem; color: var(--gray-600); cursor: pointer; transition: var(--transition); }
.widget-list li:last-child { border-bottom: none; }
.widget-list li:hover { color: var(--primary); }
.widget-count { background: var(--gray-100); padding: 2px 8px; border-radius: 100px; font-size: 0.75rem; font-weight: 600; color: var(--gray-600); }
.popular-post { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--gray-100); cursor: pointer; }
.popular-post:last-child { border-bottom: none; }
.popular-post img { width: 68px; height: 68px; border-radius: 8px; object-fit: cover; flex-shrink: 0; }
.popular-post-title { font-size: 0.85rem; font-weight: 600; color: var(--dark); line-height: 1.4; margin-bottom: 4px; transition: var(--transition); }
.popular-post:hover .popular-post-title { color: var(--primary); }
.popular-post-date { font-size: 0.75rem; color: var(--gray-400); }

/* ABOUT PAGE */
.about-hero { background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%); padding: 90px 0; }
.about-hero-inner { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 60px; }
.about-hero h1 { font-family: var(--font-serif); font-size: 3rem; color: white; margin-bottom: 20px; line-height: 1.2; }
.about-hero p { color: rgba(255,255,255,0.75); font-size: 1.05rem; line-height: 1.75; margin-bottom: 28px; }
.about-hero img { border-radius: var(--radius-lg); width: 100%; height: 400px; object-fit: cover; box-shadow: var(--shadow-lg); }
.mission { padding: 80px 0; }
.mission-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 50px; }
.mission-card { background: var(--white); border-radius: var(--radius-lg); padding: 32px 28px; border: 1px solid var(--gray-200); box-shadow: var(--shadow-sm); text-align: center; transition: var(--transition); }
.mission-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.mission-icon { width: 60px; height: 60px; border-radius: 16px; background: var(--primary-light); color: var(--primary); font-size: 1.6rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; }
.mission-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.mission-card p { font-size: 0.9rem; color: var(--gray-600); line-height: 1.65; }
.team { background: var(--white); padding: 80px 0; border-top: 1px solid var(--gray-200); }
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 50px; }
.team-card { text-align: center; padding: 32px 24px; background: var(--bg); border-radius: var(--radius-lg); border: 1px solid var(--gray-200); transition: var(--transition); }
.team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.team-avatar { width: 80px; height: 80px; border-radius: 50%; margin: 0 auto 16px; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; font-weight: 800; color: white; }
.team-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--dark); }
.team-card .role { font-size: 0.83rem; color: var(--primary); font-weight: 600; margin: 4px 0 10px; }
.team-card p { font-size: 0.85rem; color: var(--gray-600); line-height: 1.6; }
.team-socials { display: flex; justify-content: center; gap: 10px; margin-top: 16px; }
.team-socials a { width: 32px; height: 32px; border-radius: 8px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 0.85rem; transition: var(--transition); }
.team-socials a:hover { background: var(--primary); color: white; }
.values { padding: 80px 0; }
.values-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 50px; }
.value-item { display: flex; gap: 18px; padding: 28px; background: var(--white); border-radius: var(--radius-lg); border: 1px solid var(--gray-200); transition: var(--transition); }
.value-item:hover { box-shadow: var(--shadow-md); border-color: var(--primary-light); }
.value-icon { width: 48px; height: 48px; background: var(--primary-light); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; flex-shrink: 0; }
.value-item h4 { font-size: 1rem; font-weight: 700; color: var(--dark); margin-bottom: 6px; }
.value-item p { font-size: 0.88rem; color: var(--gray-600); line-height: 1.6; }
.contact-strip { background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%); padding: 70px 0; }
.contact-strip-inner { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 60px; }
.contact-strip h2 { font-family: var(--font-serif); font-size: 2rem; color: white; margin-bottom: 10px; }
.contact-strip p { color: rgba(255,255,255,0.7); font-size: 0.95rem; line-height: 1.7; }
.contact-info-list { display: flex; flex-direction: column; gap: 16px; }
.contact-info-item { display: flex; align-items: center; gap: 14px; color: rgba(255,255,255,0.85); font-size: 0.93rem; }
.contact-info-item .ci-icon { width: 40px; height: 40px; background: rgba(255,255,255,0.1); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0; }

/* FOOTER */
.footer { background: var(--dark); color: rgba(255,255,255,0.7); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 50px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand .logo-text { color: white; font-size: 1.6rem; }
.footer-brand .logo-icon { background: var(--primary); }
.footer-desc { font-size: 0.88rem; line-height: 1.7; margin: 14px 0 20px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a { width: 36px; height: 36px; background: rgba(255,255,255,0.07); border-radius: 9px; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.6); font-size: 0.95rem; transition: var(--transition); }
.footer-social a:hover { background: var(--primary); color: white; }
.footer-col h4 { color: white; font-size: 0.92rem; font-weight: 700; margin-bottom: 18px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 0.87rem; color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer-links a:hover { color: white; }
.footer-bottom { padding: 22px 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 0.83rem; color: rgba(255,255,255,0.4); }
.footer-bottom a { color: rgba(255,255,255,0.5); transition: var(--transition); }
.footer-bottom a:hover { color: white; }
.mobile-menu { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: white; z-index: 9999; padding: 80px 30px 30px; flex-direction: column; gap: 8px; }
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 14px 20px; border-radius: 10px; font-weight: 500; font-size: 1rem; color: var(--gray-600); transition: var(--transition); border-bottom: 1px solid var(--gray-100); }
.mobile-menu a:hover { background: var(--primary-light); color: var(--primary); }
.mobile-close { position: absolute; top: 18px; right: 20px; background: var(--gray-100); border: none; width: 40px; height: 40px; border-radius: 10px; font-size: 1.1rem; cursor: pointer; display: flex; align-items: center; justify-content: center; color: var(--dark); }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; gap: 40px; }
  .hero-title { font-size: 2.5rem; }
  .hero-img-wrap { display: none; }
  .hero { padding: 70px 0 70px; }
  .featured-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .blog-layout { grid-template-columns: 1fr; }
  .sidebar { display: grid; grid-template-columns: 1fr 1fr; }
  .about-hero-inner { grid-template-columns: 1fr; }
  .contact-strip-inner { grid-template-columns: 1fr; gap: 40px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .hero-title { font-size: 2rem; }
  .section-title { font-size: 1.7rem; }
  .articles-grid { grid-template-columns: 1fr; }
  .article-card { grid-template-columns: 1fr; }
  .article-card img { width: 100%; height: 200px; }
  .featured-grid { grid-template-columns: 1fr; }
  .mission-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .values-grid { grid-template-columns: 1fr; }
  .newsletter-inner { flex-direction: column; }
  .newsletter-form { min-width: unset; width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .sidebar { display: flex; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .hero-title { font-size: 1.7rem; }
  .hero-btns { flex-direction: column; }
  .team-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .about-hero h1 { font-size: 2.2rem; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}