/*
Theme Name: Updates.lk
Theme URI: https://updates.lk
Author: Updates.lk
Author URI: https://updates.lk
Description: A high-performance, SEO-optimized WordPress theme for Updates.lk - Sri Lanka's premier education resource portal. Features unique layouts for Past Papers, Model Papers, Jobs, Contact Numbers, Quizzes, and Education News.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: updates-lk
Tags: education, custom-background, custom-logo, custom-menu, featured-images, threaded-comments, responsive-layout
*/

/* ========================================
   CSS CUSTOM PROPERTIES
======================================== */
:root {
  --primary: #0A2463;
  --primary-light: #1B3A8C;
  --secondary: #E63946;
  --accent: #F4A261;
  --accent2: #2EC4B6;
  --dark: #0D1117;
  --dark2: #161B22;
  --surface: #1C2333;
  --card-bg: #1E2A3A;
  --text: #E6EDF3;
  --text-muted: #8B949E;
  --border: rgba(255,255,255,0.08);
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-sm: 0 2px 12px rgba(0,0,0,0.25);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-display: 'Sora', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Category Colors */
  --cat-past-papers: #6C63FF;
  --cat-model-papers: #00C9A7;
  --cat-jobs: #F4A261;
  --cat-contacts: #E63946;
  --cat-quizzes: #3F88C5;
  --cat-news: #44BBA4;
}

/* ========================================
   RESET & BASE
======================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  background: var(--dark);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent2); }
ul { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
}

/* ========================================
   UTILITY CLASSES
======================================== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.container-wide { max-width: 1400px; margin: 0 auto; padding: 0 24px; }
.text-center { text-align: center; }
.flex { display: flex; }
.grid { display: grid; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ========================================
   SCROLLBAR
======================================== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--dark2); }
::-webkit-scrollbar-thumb { background: var(--primary-light); border-radius: 3px; }

/* ========================================
   SELECTION
======================================== */
::selection { background: var(--secondary); color: #fff; }

/* ========================================
   PRELOADER
======================================== */
#preloader {
  position: fixed; inset: 0; background: var(--dark);
  z-index: 9999; display: flex; align-items: center; justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
#preloader.fade-out { opacity: 0; visibility: hidden; }
.preloader-inner {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.preloader-logo {
  font-family: var(--font-display); font-size: 2rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--secondary));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.preloader-bar {
  width: 200px; height: 3px; background: var(--surface);
  border-radius: 2px; overflow: hidden;
}
.preloader-bar-fill {
  height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--secondary));
  border-radius: 2px; animation: preload 1.5s ease forwards;
}
@keyframes preload { to { width: 100%; } }

/* ========================================
   SITE HEADER
======================================== */
#masthead {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(13,17,23,0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; max-width: 1400px; margin: 0 auto;
}
.site-branding a {
  display: flex; align-items: center; gap: 10px;
}
.logo-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; font-weight: 800; color: #fff;
  font-family: var(--font-display);
}
.site-name {
  font-family: var(--font-display); font-size: 1.4rem; font-weight: 800;
  background: linear-gradient(135deg, #fff 0%, var(--accent) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.site-tagline { font-size: 0.7rem; color: var(--text-muted); display: block; margin-top: -2px; }

/* Navigation */
#site-navigation { display: flex; align-items: center; gap: 8px; }
#primary-menu { display: flex; gap: 4px; align-items: center; }
#primary-menu > li > a {
  color: var(--text); font-size: 0.9rem; font-weight: 500; padding: 8px 14px;
  border-radius: var(--radius-sm); display: block; transition: var(--transition);
}
#primary-menu > li > a:hover,
#primary-menu > li.current-menu-item > a {
  background: var(--surface); color: var(--accent);
}

/* Dropdown */
#primary-menu .sub-menu {
  position: absolute; top: 100%; left: 0;
  background: var(--dark2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 8px; min-width: 200px;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: var(--transition); z-index: 100;
}
#primary-menu li:hover .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }
#primary-menu .sub-menu li a {
  display: block; padding: 8px 12px; color: var(--text-muted);
  border-radius: var(--radius-sm); font-size: 0.875rem; transition: var(--transition);
}
#primary-menu .sub-menu li a:hover { background: var(--surface); color: var(--text); }
#primary-menu li { position: relative; }

.header-search { position: relative; }
.header-search input {
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text); border-radius: 50px; padding: 8px 16px 8px 40px;
  font-size: 0.875rem; width: 220px; transition: var(--transition);
  font-family: var(--font-body);
}
.header-search input:focus { outline: none; border-color: var(--accent); width: 260px; }
.header-search .search-icon {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); font-size: 0.875rem;
}

.menu-toggle {
  display: none; background: var(--surface); border: 1px solid var(--border);
  color: var(--text); padding: 8px 12px; border-radius: var(--radius-sm); cursor: pointer;
  font-size: 1.1rem; transition: var(--transition);
}
.menu-toggle:hover { background: var(--primary-light); }

/* Mobile Nav */
.mobile-nav {
  display: none; background: var(--dark2); border-top: 1px solid var(--border);
  padding: 16px 24px;
}
.mobile-nav.open { display: block; }
.mobile-nav a {
  display: block; padding: 10px 0; color: var(--text-muted); border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover { color: var(--accent); }

/* ========================================
   HERO SECTION
======================================== */
.hero-section {
  min-height: 85vh; display: flex; align-items: center;
  position: relative; overflow: hidden;
  background: radial-gradient(ellipse 80% 80% at 50% -20%, rgba(10,36,99,0.6) 0%, transparent 70%),
              var(--dark);
}
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}
.hero-particles {
  position: absolute; inset: 0; overflow: hidden;
}
.hero-particles span {
  position: absolute; width: 2px; height: 2px; background: var(--accent);
  border-radius: 50%; animation: float-particle 8s infinite linear;
  opacity: 0;
}
@keyframes float-particle {
  0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-100px) rotate(360deg); opacity: 0; }
}
.hero-content {
  position: relative; z-index: 2; max-width: 800px; margin: 0 auto;
  text-align: center; padding: 80px 24px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(230,57,70,0.15); border: 1px solid rgba(230,57,70,0.3);
  color: var(--secondary); padding: 6px 16px; border-radius: 50px;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase;
  margin-bottom: 24px; animation: fadeInDown 0.8s ease both;
}
.hero-badge::before { content: '🇱🇰'; font-size: 1rem; }

.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.5rem); font-weight: 900;
  line-height: 1.1; margin-bottom: 24px;
  animation: fadeInUp 0.8s 0.2s ease both;
}
.hero-title .line1 { display: block; color: var(--text); }
.hero-title .line2 {
  display: block;
  background: linear-gradient(135deg, var(--accent) 0%, var(--secondary) 50%, #a855f7 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.1rem; color: var(--text-muted); max-width: 600px;
  margin: 0 auto 40px; animation: fadeInUp 0.8s 0.3s ease both; line-height: 1.8;
}
.hero-stats {
  display: flex; justify-content: center; gap: 48px; margin-bottom: 48px;
  animation: fadeInUp 0.8s 0.4s ease both;
}
.hero-stat { text-align: center; }
.hero-stat-number {
  display: block; font-family: var(--font-display); font-size: 2rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-stat-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; }

.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; animation: fadeInUp 0.8s 0.5s ease both; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 50px; font-weight: 600; font-size: 0.95rem;
  transition: var(--transition); cursor: pointer; border: none; font-family: var(--font-body);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--secondary), #c1121f);
  color: #fff; box-shadow: 0 4px 20px rgba(230,57,70,0.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(230,57,70,0.5); color: #fff; }
.btn-outline {
  background: transparent; color: var(--text);
  border: 1px solid var(--border); backdrop-filter: blur(10px);
}
.btn-outline:hover { background: var(--surface); border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.scroll-indicator {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-muted); font-size: 0.75rem; animation: bounce 2s infinite;
}
.scroll-indicator::after {
  content: ''; width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ========================================
   SECTION HEADERS
======================================== */
.section-header { text-align: center; margin-bottom: 48px; }
.section-label {
  display: inline-block; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 12px;
  position: relative;
}
.section-label::before, .section-label::after {
  content: '—'; margin: 0 8px; opacity: 0.5;
}
.section-title { font-size: clamp(1.8rem, 4vw, 2.8rem); margin-bottom: 16px; }
.section-desc { color: var(--text-muted); max-width: 600px; margin: 0 auto; font-size: 1rem; }

/* ========================================
   CATEGORIES SECTION
======================================== */
.categories-section { padding: 100px 0; position: relative; }
.categories-section::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.categories-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}

/* Category Card */
.category-card {
  display: flex; flex-direction: column; align-items: flex-start;
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px 24px;
  transition: all 0.4s cubic-bezier(0.34,1.56,0.64,1);
  position: relative; overflow: hidden; cursor: pointer;
  text-decoration: none;
}
.category-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--cat-color, var(--primary)) 0%, transparent 70%);
  opacity: 0.06; transition: opacity 0.4s ease;
}
.category-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px;
  background: var(--cat-color, var(--primary)); transform: scaleX(0);
  transform-origin: left; transition: transform 0.4s ease;
}
.category-card:hover { transform: translateY(-8px); border-color: var(--cat-color, var(--primary)); box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px var(--cat-color, var(--primary)) inset; }
.category-card:hover::before { opacity: 0.12; }
.category-card:hover::after { transform: scaleX(1); }

.category-card-icon {
  font-size: 2.8rem; margin-bottom: 16px; display: block;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
  transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
.category-card:hover .category-card-icon { transform: scale(1.15) rotate(-5deg); }

.category-card-label {
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--cat-color, var(--accent)); margin-bottom: 8px; opacity: 0.8;
}
.category-card-title {
  font-family: var(--font-display); font-size: 1.2rem; font-weight: 700;
  color: var(--text); margin-bottom: 8px; line-height: 1.3;
}
.category-card-desc {
  font-size: 0.875rem; color: var(--text-muted); line-height: 1.6; flex: 1;
}
.category-card-arrow {
  margin-top: 20px; display: flex; align-items: center; gap: 6px;
  font-size: 0.8rem; font-weight: 600; color: var(--cat-color, var(--accent));
  opacity: 0; transform: translateX(-8px); transition: var(--transition);
}
.category-card:hover .category-card-arrow { opacity: 1; transform: translateX(0); }

/* Category colors */
.cat-past-papers { --cat-color: var(--cat-past-papers); }
.cat-model-papers { --cat-color: var(--cat-model-papers); }
.cat-jobs { --cat-color: var(--cat-jobs); }
.cat-contacts { --cat-color: var(--cat-contacts); }
.cat-quizzes { --cat-color: var(--cat-quizzes); }
.cat-news { --cat-color: var(--cat-news); }

/* ========================================
   LATEST POSTS SECTION
======================================== */
.latest-section { padding: 80px 0; background: var(--dark2); }
.posts-tabs {
  display: flex; gap: 8px; justify-content: center; margin-bottom: 40px; flex-wrap: wrap;
}
.posts-tab {
  padding: 8px 20px; border-radius: 50px; font-size: 0.875rem; font-weight: 600;
  background: var(--surface); border: 1px solid var(--border); color: var(--text-muted);
  cursor: pointer; transition: var(--transition);
}
.posts-tab.active, .posts-tab:hover {
  background: var(--primary); border-color: var(--primary-light); color: #fff;
}
.posts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.post-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; transition: var(--transition);
  display: flex; flex-direction: column;
}
.post-card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.15); box-shadow: var(--shadow); }
.post-card-thumb {
  aspect-ratio: 16/9; overflow: hidden; background: var(--surface);
  position: relative;
}
.post-card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.post-card:hover .post-card-thumb img { transform: scale(1.05); }
.post-card-cat {
  position: absolute; top: 12px; left: 12px;
  background: var(--cat-color, var(--primary)); color: #fff;
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 50px;
}
.post-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.post-card-meta { display: flex; gap: 12px; margin-bottom: 10px; }
.post-card-meta span { font-size: 0.75rem; color: var(--text-muted); }
.post-card-title {
  font-size: 1rem; font-weight: 700; margin-bottom: 10px; line-height: 1.4;
}
.post-card-title a { color: var(--text); }
.post-card-title a:hover { color: var(--accent); }
.post-card-excerpt { font-size: 0.875rem; color: var(--text-muted); line-height: 1.6; flex: 1; }
.post-card-footer {
  padding: 14px 20px; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
}
.post-card-link {
  font-size: 0.8rem; font-weight: 600; color: var(--accent); display: flex; align-items: center; gap: 4px;
}

/* ========================================
   FEATURED STRIP
======================================== */
.features-strip {
  padding: 60px 0;
  background: linear-gradient(135deg, var(--primary) 0%, #0d1b4f 100%);
  position: relative; overflow: hidden;
}
.features-strip::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.feature-item { text-align: center; position: relative; z-index: 1; }
.feature-icon {
  font-size: 2.5rem; margin-bottom: 16px; display: block;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
}
.feature-title { font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: #fff; }
.feature-desc { font-size: 0.875rem; color: rgba(255,255,255,0.65); line-height: 1.6; }

/* ========================================
   NEWSLETTER SECTION
======================================== */
.newsletter-section {
  padding: 100px 0; position: relative;
  background: radial-gradient(ellipse 60% 60% at 50% 50%, rgba(230,57,70,0.12) 0%, transparent 70%);
}
.newsletter-box {
  max-width: 600px; margin: 0 auto; text-align: center;
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 60px 40px;
  position: relative; overflow: hidden;
}
.newsletter-box::before {
  content: ''; position: absolute; top: -80px; right: -80px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(230,57,70,0.2) 0%, transparent 70%);
}
.newsletter-icon { font-size: 3rem; margin-bottom: 24px; display: block; }
.newsletter-title { font-size: 1.8rem; margin-bottom: 12px; }
.newsletter-desc { color: var(--text-muted); margin-bottom: 32px; }
.newsletter-form { display: flex; gap: 12px; max-width: 400px; margin: 0 auto; }
.newsletter-input {
  flex: 1; background: var(--surface); border: 1px solid var(--border);
  color: var(--text); border-radius: 50px; padding: 12px 20px;
  font-family: var(--font-body); font-size: 0.9rem; transition: var(--transition);
}
.newsletter-input:focus { outline: none; border-color: var(--secondary); }
.btn-newsletter {
  background: linear-gradient(135deg, var(--secondary), #c1121f);
  color: #fff; border: none; padding: 12px 24px; border-radius: 50px;
  font-weight: 700; font-size: 0.9rem; cursor: pointer; transition: var(--transition);
  font-family: var(--font-body); white-space: nowrap;
}
.btn-newsletter:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(230,57,70,0.4); }

/* ========================================
   SITE FOOTER
======================================== */
#colophon {
  background: var(--dark2); border-top: 1px solid var(--border);
}
.footer-main {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
  padding: 64px 0 48px;
}
.footer-about .site-name { font-size: 1.5rem; margin-bottom: 12px; }
.footer-about p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.8; margin-bottom: 20px; }
.social-links { display: flex; gap: 10px; }
.social-link {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 0.9rem; transition: var(--transition);
}
.social-link:hover { background: var(--primary); border-color: var(--primary-light); color: #fff; transform: translateY(-2px); }

.footer-col h4 {
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 20px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: var(--text-muted); font-size: 0.9rem; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--text); }

.footer-bottom {
  border-top: 1px solid var(--border); padding: 24px 0;
  display: flex; justify-content: space-between; align-items: center;
}
.footer-bottom p { font-size: 0.85rem; color: var(--text-muted); }
.footer-bottom a { color: var(--accent); }

/* ========================================
   ANIMATIONS
======================================== */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.revealed { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ========================================
   SINGLE POST BASE STYLES
======================================== */
.single-post-header {
  padding: 100px 0 60px; position: relative; overflow: hidden;
}
.breadcrumb {
  display: flex; align-items: center; gap: 8px; margin-bottom: 24px;
  font-size: 0.8rem; color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { opacity: 0.5; }
.post-category-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 50px; font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 20px;
  background: rgba(255,255,255,0.08); border: 1px solid;
}
.entry-title { font-size: clamp(1.8rem, 4vw, 3rem); margin-bottom: 24px; }
.post-meta-bar {
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
  color: var(--text-muted); font-size: 0.875rem;
}
.post-meta-item { display: flex; align-items: center; gap: 6px; }

.entry-content {
  font-size: 1rem; line-height: 1.9; color: var(--text);
}
.entry-content h2 { font-size: 1.5rem; margin: 36px 0 16px; }
.entry-content h3 { font-size: 1.2rem; margin: 28px 0 12px; }
.entry-content p { margin-bottom: 20px; }
.entry-content a { color: var(--accent); border-bottom: 1px solid rgba(244,162,97,0.3); }
.entry-content a:hover { color: var(--accent2); border-color: transparent; }
.entry-content ul, .entry-content ol { padding-left: 24px; margin-bottom: 20px; }
.entry-content li { margin-bottom: 8px; }
.entry-content blockquote {
  margin: 32px 0; padding: 20px 24px; border-left: 4px solid var(--accent);
  background: var(--card-bg); border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic; color: var(--text-muted);
}
.entry-content img { border-radius: var(--radius); margin: 24px 0; }
.entry-content table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.entry-content table th, .entry-content table td {
  padding: 12px 16px; border: 1px solid var(--border); text-align: left;
}
.entry-content table th { background: var(--surface); font-weight: 700; }
.entry-content table tr:nth-child(even) { background: rgba(255,255,255,0.02); }

/* Related Posts */
.related-posts { padding: 60px 0; border-top: 1px solid var(--border); }
.related-posts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

/* ========================================
   GOOGLE DRIVE POPUP VIEWER
======================================== */
.gdrive-btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: linear-gradient(135deg, var(--secondary), #c1121f);
  color: #fff; padding: 14px 28px; border-radius: 50px;
  font-weight: 700; font-size: 1rem; border: none; cursor: pointer;
  transition: var(--transition); font-family: var(--font-body);
  box-shadow: 0 4px 20px rgba(230,57,70,0.4);
}
.gdrive-btn:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(230,57,70,0.5); color: #fff; }
.gdrive-btn .btn-icon { font-size: 1.2rem; }

.popup-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.92); backdrop-filter: blur(12px);
  display: flex; align-items: center; justify-content: center; padding: 16px;
  opacity: 0; visibility: hidden; transition: var(--transition);
}
.popup-overlay.open { opacity: 1; visibility: visible; }
.popup-container {
  background: var(--dark2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); width: 100%; max-width: 1000px;
  max-height: 95vh; display: flex; flex-direction: column;
  transform: scale(0.95) translateY(20px); transition: var(--transition);
  overflow: hidden;
}
.popup-overlay.open .popup-container { transform: scale(1) translateY(0); }
.popup-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  background: var(--surface); flex-shrink: 0;
}
.popup-title { font-size: 0.95rem; font-weight: 700; color: var(--text); }
.popup-actions { display: flex; gap: 8px; }
.popup-btn {
  padding: 8px 16px; border-radius: var(--radius-sm); font-size: 0.8rem;
  font-weight: 600; cursor: pointer; transition: var(--transition);
  border: 1px solid var(--border); font-family: var(--font-body);
}
.popup-btn-open { background: var(--primary); border-color: var(--primary-light); color: #fff; }
.popup-btn-open:hover { background: var(--primary-light); }
.popup-btn-close {
  background: transparent; color: var(--text-muted);
  width: 36px; height: 36px; padding: 0; display: flex; align-items: center;
  justify-content: center; font-size: 1.1rem; border-radius: 8px;
}
.popup-btn-close:hover { background: var(--secondary); color: #fff; border-color: var(--secondary); }
.popup-body { flex: 1; overflow: hidden; position: relative; min-height: 400px; }
.popup-body iframe { width: 100%; height: 100%; border: none; min-height: 500px; }
.popup-loading {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 16px; color: var(--text-muted);
}
.popup-spinner {
  width: 48px; height: 48px; border: 3px solid var(--border);
  border-top-color: var(--secondary); border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ========================================
   ARCHIVE / CATEGORY PAGE
======================================== */
.archive-header {
  padding: 80px 0 48px; position: relative; overflow: hidden;
  background: linear-gradient(180deg, rgba(10,36,99,0.3) 0%, transparent 100%);
}
.archive-title { font-size: 2.5rem; margin-bottom: 12px; }
.archive-desc { color: var(--text-muted); }
.archive-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; padding: 60px 0; }

/* ========================================
   SIDEBAR
======================================== */
.sidebar { display: flex; flex-direction: column; gap: 24px; }
.widget {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px; overflow: hidden;
}
.widget-title {
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 20px; padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.widget ul li { margin-bottom: 12px; }
.widget ul li a { color: var(--text-muted); font-size: 0.9rem; transition: var(--transition); display: flex; justify-content: space-between; align-items: center; }
.widget ul li a:hover { color: var(--text); }
.widget ul li a .count { background: var(--surface); padding: 2px 8px; border-radius: 50px; font-size: 0.75rem; }

.search-widget form { display: flex; gap: 8px; }
.search-widget input {
  flex: 1; background: var(--surface); border: 1px solid var(--border);
  color: var(--text); border-radius: var(--radius-sm); padding: 10px 14px;
  font-family: var(--font-body); font-size: 0.9rem;
}
.search-widget input:focus { outline: none; border-color: var(--accent); }
.search-widget button {
  background: var(--primary); border: none; color: #fff;
  padding: 10px 16px; border-radius: var(--radius-sm); cursor: pointer; transition: var(--transition);
}
.search-widget button:hover { background: var(--primary-light); }

/* ========================================
   404 PAGE
======================================== */
.error-404 {
  min-height: 80vh; display: flex; align-items: center; justify-content: center;
  text-align: center;
}
.error-404 .error-code {
  font-size: 8rem; font-weight: 900; line-height: 1;
  background: linear-gradient(135deg, var(--secondary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: 16px; font-family: var(--font-display);
}
.error-404 h2 { font-size: 2rem; margin-bottom: 16px; }
.error-404 p { color: var(--text-muted); margin-bottom: 32px; }

/* ========================================
   RESPONSIVE
======================================== */
@media (max-width: 1024px) {
  .footer-main { grid-template-columns: 1fr 1fr; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  #primary-menu, .header-search { display: none; }
  .menu-toggle { display: block; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .posts-grid { grid-template-columns: 1fr; }
  .related-posts-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .footer-main { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .newsletter-form { flex-direction: column; }
  .archive-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .categories-grid { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .features-grid { grid-template-columns: 1fr; }
}