/* ===== CSS Variables ===== */
:root {
  --color-bg: #0f0f23;
  --color-bg-card: #1a1a2e;
  --color-bg-card-hover: #16213e;
  --color-primary: #6366f1;
  --color-primary-dark: #4f46e5;
  --color-secondary: #8b5cf6;
  --color-accent: #06b6d4;
  --color-accent-green: #10b981;
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-text-dim: #64748b;
  --color-border: #1e293b;
  --color-border-light: #334155;
  --gradient-hero: linear-gradient(135deg, #0f0f23 0%, #1a1a3e 50%, #0f172a 100%);
  --gradient-card: linear-gradient(135deg, #1a1a2e, #16213e);
  --gradient-cta: linear-gradient(135deg, #6366f1, #8b5cf6);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 8px 32px rgba(99, 102, 241, 0.2);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --transition: 0.25s ease;
  --max-width: 1200px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-text);
}
h1 { font-size: clamp(1.75rem, 4vw, 3rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }
p { color: var(--color-text-muted); line-height: 1.7; }

/* ===== Layout Utilities ===== */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.25rem; }
.section { padding: 4rem 0; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-cta);
  color: #fff;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-secondary:hover {
  background: var(--color-primary);
  color: #fff;
}
.btn-outline-white {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.4);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
}
.btn-lg { padding: 0.85rem 2rem; font-size: 1rem; }

/* ===== Badges / Tags ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.badge-primary { background: rgba(99,102,241,0.15); color: var(--color-primary); border: 1px solid rgba(99,102,241,0.3); }
.badge-accent { background: rgba(6,182,212,0.15); color: var(--color-accent); border: 1px solid rgba(6,182,212,0.3); }
.badge-green { background: rgba(16,185,129,0.15); color: var(--color-accent-green); border: 1px solid rgba(16,185,129,0.3); }
.badge-purple { background: rgba(139,92,246,0.15); color: var(--color-secondary); border: 1px solid rgba(139,92,246,0.3); }

/* ===== Header / Navigation ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15,15,35,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 2rem;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.1rem;
  font-weight: 700;
  white-space: nowrap;
}
.nav-logo .logo-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--gradient-cta);
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-logo span { color: var(--color-text); }
.nav-logo span b { background: var(--gradient-cta); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.1rem;
  flex: 1;
}
.nav-links a {
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.825rem;
  color: var(--color-text-muted);
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--color-text);
  background: rgba(255,255,255,0.06);
}
.nav-cta { display: flex; align-items: center; gap: 0.75rem; }
.nav-hamburger { display: none; cursor: pointer; background: none; border: none; color: var(--color-text); padding: 0.4rem; }
.nav-hamburger svg { width: 24px; height: 24px; }

/* ===== Hero ===== */
.hero {
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  padding: 5rem 0 4rem;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(99,102,241,0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 20%, rgba(139,92,246,0.06) 0%, transparent 50%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; text-align: center; max-width: 780px; margin: 0 auto; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(99,102,241,0.12);
  border: 1px solid rgba(99,102,241,0.25);
  color: #a5b4fc;
  padding: 0.35rem 1rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
}
.hero h1 { margin-bottom: 1.25rem; color: #fff; }
.hero h1 span { background: var(--gradient-cta); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-subtitle { font-size: 1.1rem; color: rgba(226,232,240,0.7); max-width: 580px; margin: 0 auto 2rem; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hero-stats { display: flex; justify-content: center; gap: 2.5rem; margin-top: 3rem; padding-top: 2.5rem; border-top: 1px solid var(--color-border); flex-wrap: wrap; }
.hero-stat { text-align: center; }
.hero-stat .stat-num { font-size: 1.75rem; font-weight: 800; background: var(--gradient-cta); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-stat .stat-label { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 0.25rem; }

/* ===== Section Header ===== */
.section-header { margin-bottom: 2.5rem; }
.section-header.centered { text-align: center; }
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}
.section-header h2 { margin-bottom: 0.75rem; }
.section-header p { color: var(--color-text-muted); font-size: 1.05rem; }

/* ===== Cards ===== */
.card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.card:hover {
  border-color: rgba(99,102,241,0.35);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.card-body { padding: 1.5rem; }
.card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.8rem;
  color: var(--color-text-dim);
}
.card-title { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.5rem; line-height: 1.4; }
.card-title a { transition: color var(--transition); }
.card-title a:hover { color: var(--color-primary); }
.card-excerpt { font-size: 0.875rem; color: var(--color-text-muted); line-height: 1.6; margin-bottom: 1rem; }
.card-footer { display: flex; align-items: center; justify-content: space-between; padding: 0.875rem 1.5rem; border-top: 1px solid var(--color-border); font-size: 0.8rem; color: var(--color-text-dim); }
.card-read-more { color: var(--color-primary); font-weight: 600; font-size: 0.85rem; transition: gap var(--transition); display: flex; align-items: center; gap: 0.3rem; }
.card-read-more:hover { gap: 0.5rem; }

/* ===== Category Cards ===== */
.cat-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: all var(--transition);
  cursor: pointer;
  text-decoration: none;
}
.cat-card:hover {
  border-color: rgba(99,102,241,0.4);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.cat-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}
.cat-icon.indigo { color: #6366f1; background: rgba(99,102,241,0.15); border: 1px solid rgba(99,102,241,0.25); }
.cat-icon.purple { color: #8b5cf6; background: rgba(139,92,246,0.15); border: 1px solid rgba(139,92,246,0.25); }
.cat-icon.cyan { color: #06b6d4; background: rgba(6,182,212,0.15); border: 1px solid rgba(6,182,212,0.25); }
.cat-icon.green { color: #10b981; background: rgba(16,185,129,0.15); border: 1px solid rgba(16,185,129,0.25); }
.cat-icon.orange { color: #f97316; background: rgba(249,115,22,0.15); border: 1px solid rgba(249,115,22,0.25); }
.cat-icon.pink { color: #ec4899; background: rgba(236,72,153,0.15); border: 1px solid rgba(236,72,153,0.25); }
.cat-icon.yellow { color: #eab308; background: rgba(234,179,8,0.15); border: 1px solid rgba(234,179,8,0.25); }
.cat-icon.red { color: #ef4444; background: rgba(239,68,68,0.15); border: 1px solid rgba(239,68,68,0.25); }
.cat-title { font-size: 1.05rem; font-weight: 700; color: var(--color-text); }
.cat-desc { font-size: 0.875rem; color: var(--color-text-muted); line-height: 1.5; }
.cat-count { font-size: 0.78rem; color: var(--color-text-dim); font-weight: 500; display: flex; align-items: center; gap: 0.35rem; margin-top: auto; }

/* ===== Article List (category pages) ===== */
.article-list { display: flex; flex-direction: column; gap: 1.25rem; }
.article-item {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: start;
  transition: all var(--transition);
}
.article-item:hover {
  border-color: rgba(99,102,241,0.3);
  box-shadow: 0 4px 20px rgba(99,102,241,0.1);
  transform: translateX(4px);
}
.article-item-body { min-width: 0; }
.article-item-title { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.4rem; line-height: 1.4; }
.article-item-title a:hover { color: var(--color-primary); }
.article-item-meta { display: flex; align-items: center; gap: 0.75rem; font-size: 0.78rem; color: var(--color-text-dim); margin-bottom: 0.5rem; flex-wrap: wrap; }
.article-item-excerpt { font-size: 0.875rem; color: var(--color-text-muted); }
.article-item-arrow { color: var(--color-primary); opacity: 0.5; flex-shrink: 0; margin-top: 0.25rem; transition: opacity var(--transition), transform var(--transition); }
.article-item:hover .article-item-arrow { opacity: 1; transform: translateX(3px); }

/* ===== Article Page ===== */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 2.5rem;
  align-items: start;
}
.article-content-main { min-width: 0; }
.article-header { margin-bottom: 2rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--color-border); }
.article-breadcrumb { display: flex; align-items: center; gap: 0.5rem; font-size: 0.8rem; color: var(--color-text-dim); margin-bottom: 1rem; flex-wrap: wrap; }
.article-breadcrumb a:hover { color: var(--color-primary); }
.article-breadcrumb svg { width: 14px; height: 14px; opacity: 0.5; }
.article-meta-bar { display: flex; align-items: center; gap: 1rem; font-size: 0.8rem; color: var(--color-text-dim); margin-top: 1rem; flex-wrap: wrap; }
.article-meta-bar .separator { opacity: 0.3; }
.article-body { font-size: 1rem; line-height: 1.8; }
.article-body h2 { font-size: 1.5rem; margin: 2rem 0 1rem; color: var(--color-text); padding-bottom: 0.5rem; border-bottom: 1px solid var(--color-border); }
.article-body h3 { font-size: 1.2rem; margin: 1.5rem 0 0.75rem; color: var(--color-text); }
.article-body h4 { font-size: 1.05rem; margin: 1.25rem 0 0.5rem; color: var(--color-text); }
.article-body p { margin-bottom: 1.25rem; color: var(--color-text-muted); }
.article-body ul, .article-body ol { padding-left: 1.5rem; margin-bottom: 1.25rem; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { color: var(--color-text-muted); margin-bottom: 0.5rem; }
.article-body strong { color: var(--color-text); font-weight: 600; }
.article-body a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--color-secondary); }
.article-body blockquote { border-left: 3px solid var(--color-primary); padding: 1rem 1.5rem; background: rgba(99,102,241,0.05); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 1.5rem 0; }
.article-body blockquote p { margin-bottom: 0; font-style: italic; }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 0.9rem; }
.article-body th { background: rgba(99,102,241,0.1); color: var(--color-text); font-weight: 600; padding: 0.75rem 1rem; text-align: left; border: 1px solid var(--color-border); }
.article-body td { padding: 0.65rem 1rem; border: 1px solid var(--color-border); color: var(--color-text-muted); }
.article-body tr:nth-child(even) td { background: rgba(255,255,255,0.02); }
.article-body code { background: rgba(99,102,241,0.1); color: #a5b4fc; padding: 0.1em 0.4em; border-radius: 4px; font-size: 0.9em; font-family: 'Fira Code', 'Consolas', monospace; }
.article-body pre { background: #1e1e3a; border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 1.25rem; overflow-x: auto; margin: 1.5rem 0; }
.article-body pre code { background: none; color: #a5b4fc; padding: 0; }

/* ===== TOC ===== */
.toc-box {
  background: rgba(99,102,241,0.05);
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 2rem;
}
.toc-box h4 { font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-primary); margin-bottom: 1rem; }
.toc-box ol { padding-left: 1.25rem; list-style: decimal; }
.toc-box li { margin-bottom: 0.4rem; font-size: 0.875rem; }
.toc-box a { color: var(--color-text-muted); transition: color var(--transition); }
.toc-box a:hover { color: var(--color-primary); }

/* ===== Prompt Box ===== */
.prompt-box {
  background: #12122a;
  border: 1px solid rgba(99,102,241,0.3);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}
.prompt-box .prompt-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-primary); font-weight: 700; margin-bottom: 0.6rem; }
.prompt-box p { font-size: 0.9rem; color: #c4c4e8; margin: 0; font-style: italic; line-height: 1.7; }

/* ===== Info Box ===== */
.info-box {
  display: flex;
  gap: 1rem;
  background: rgba(6,182,212,0.06);
  border: 1px solid rgba(6,182,212,0.2);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin: 1.5rem 0;
}
.info-box .info-icon { font-size: 1.25rem; flex-shrink: 0; margin-top: 0.1rem; }
.info-box p { margin: 0; font-size: 0.9rem; color: rgba(226,232,240,0.8); }

/* ===== Warning Box ===== */
.warning-box {
  display: flex;
  gap: 1rem;
  background: rgba(234,179,8,0.06);
  border: 1px solid rgba(234,179,8,0.25);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin: 1.5rem 0;
}
.warning-box .warning-icon { font-size: 1.25rem; flex-shrink: 0; margin-top: 0.1rem; }
.warning-box p { margin: 0; font-size: 0.9rem; color: rgba(226,232,240,0.8); }

/* ===== Sidebar ===== */
.sidebar { position: sticky; top: 80px; display: flex; flex-direction: column; gap: 1.5rem; }
.sidebar-widget {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.sidebar-widget-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}
.sidebar-widget-body { padding: 1.25rem; }
.sidebar-links { display: flex; flex-direction: column; gap: 0.75rem; }
.sidebar-links a { font-size: 0.875rem; color: var(--color-text-muted); display: flex; align-items: flex-start; gap: 0.5rem; line-height: 1.4; transition: color var(--transition); }
.sidebar-links a:hover { color: var(--color-primary); }
.sidebar-links a::before { content: '→'; color: var(--color-primary); flex-shrink: 0; margin-top: 0.05rem; }

/* ===== CTA Widget / Newsletter ===== */
.cta-widget { text-align: center; }
.cta-widget h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.cta-widget p { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 1rem; }
.email-form { display: flex; flex-direction: column; gap: 0.5rem; }
.email-form input {
  width: 100%;
  padding: 0.65rem 1rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--transition);
}
.email-form input:focus { border-color: var(--color-primary); }
.email-form input::placeholder { color: var(--color-text-dim); }
.email-form button { width: 100%; }

/* ===== Newsletter Section ===== */
.newsletter-section {
  background: linear-gradient(135deg, rgba(99,102,241,0.1) 0%, rgba(139,92,246,0.08) 100%);
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: var(--radius-lg);
  padding: 3rem;
  text-align: center;
}
.newsletter-section h2 { margin-bottom: 0.75rem; }
.newsletter-section p { color: var(--color-text-muted); margin-bottom: 2rem; font-size: 1.05rem; }
.newsletter-form {
  display: flex;
  gap: 0.75rem;
  max-width: 480px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}
.newsletter-form input {
  flex: 1;
  min-width: 220px;
  padding: 0.75rem 1.25rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition);
}
.newsletter-form input:focus { border-color: var(--color-primary); }
.newsletter-form input::placeholder { color: var(--color-text-dim); }

/* ===== Footer ===== */
.site-footer {
  background: #0a0a1a;
  border-top: 1px solid var(--color-border);
  padding: 3.5rem 0 2rem;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
.footer-brand { max-width: 280px; }
.footer-brand .nav-logo { margin-bottom: 1rem; }
.footer-brand p { font-size: 0.875rem; color: var(--color-text-muted); line-height: 1.7; margin-bottom: 1rem; }
.footer-social { display: flex; gap: 0.5rem; }
.footer-social a {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  transition: all var(--transition);
}
.footer-social a:hover { background: rgba(99,102,241,0.15); border-color: var(--color-primary); color: var(--color-primary); }
.footer-col h4 { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-text); margin-bottom: 1rem; }
.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col a { font-size: 0.875rem; color: var(--color-text-muted); transition: color var(--transition); }
.footer-col a:hover { color: var(--color-primary); }
.footer-bottom { padding-top: 1.5rem; border-top: 1px solid var(--color-border); display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.footer-bottom p { font-size: 0.8rem; color: var(--color-text-dim); }
.footer-bottom-links { display: flex; gap: 1.25rem; }
.footer-bottom-links a { font-size: 0.8rem; color: var(--color-text-dim); transition: color var(--transition); }
.footer-bottom-links a:hover { color: var(--color-primary); }

/* ===== Category Hero ===== */
.cat-hero {
  background: var(--gradient-hero);
  padding: 3.5rem 0 3rem;
  position: relative;
  overflow: hidden;
}
.cat-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(99,102,241,0.07) 0%, transparent 60%);
  pointer-events: none;
}
.cat-hero-content { position: relative; z-index: 1; }
.cat-hero-icon { font-size: 3rem; margin-bottom: 1rem; }
.cat-hero h1 { margin-bottom: 0.75rem; }
.cat-hero p { font-size: 1.05rem; color: rgba(226,232,240,0.7); max-width: 600px; margin-bottom: 1.5rem; }
.cat-hero-meta { display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap; font-size: 0.85rem; color: var(--color-text-dim); }
.cat-hero-meta span { display: flex; align-items: center; gap: 0.35rem; }

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--color-text-dim);
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}
.breadcrumb a { transition: color var(--transition); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb-sep { opacity: 0.4; }

/* ===== Pagination ===== */
.pagination { display: flex; align-items: center; justify-content: center; gap: 0.5rem; margin-top: 2.5rem; }
.page-btn {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition);
}
.page-btn:hover, .page-btn.active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

/* ===== Feature Callout ===== */
.feature-callout {
  background: var(--gradient-card);
  border: 1px solid rgba(99,102,241,0.2);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
}
.feature-callout h3 { margin-bottom: 0.5rem; }
.feature-callout p { font-size: 0.9rem; color: var(--color-text-muted); margin-bottom: 1.25rem; }

/* ===== AdSense Placeholders ===== */
.ad-slot {
  background: rgba(255,255,255,0.02);
  border: 1px dashed rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 0.7rem;
  color: var(--color-text-dim);
  padding: 0.5rem;
}
.ad-slot-banner { height: 90px; display: flex; align-items: center; justify-content: center; margin: 2rem 0; }
.ad-slot-rectangle { min-height: 250px; display: flex; align-items: center; justify-content: center; margin: 1rem 0; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .hero { padding: 3.5rem 0 3rem; }
  .hero-stats { gap: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .newsletter-section { padding: 2rem 1.5rem; }
  .cat-hero { padding: 2.5rem 0 2rem; }
  .section { padding: 3rem 0; }
  .grid-3, .grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
}
@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn-lg { width: 100%; justify-content: center; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .article-item { grid-template-columns: 1fr; }
  .article-item-arrow { display: none; }
}

/* ===== Mobile Nav (when open) ===== */
.nav-mobile-open .nav-links {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 64px;
  left: 0;
  right: 0;
  background: rgba(15,15,35,0.97);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 1.25rem;
  z-index: 99;
  gap: 0.25rem;
}

/* ===== Highlighted text ===== */
.highlight { color: var(--color-primary); }
.highlight-accent { color: var(--color-accent); }
.highlight-green { color: var(--color-accent-green); }

/* ===== Divider ===== */
.divider { height: 1px; background: var(--color-border); margin: 2rem 0; }

/* ===== Reading Progress ===== */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--gradient-cta);
  z-index: 200;
  transition: width 0.1s linear;
}

/* ===== Cookie Consent Banner ===== */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: #1a1a2e;
  border-top: 1px solid var(--color-border-light);
  padding: 1rem 1.25rem;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.5);
  animation: cookieSlideUp 0.4s ease;
}
@keyframes cookieSlideUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.cookie-banner-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
#cookie-banner p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  flex: 1;
  min-width: 220px;
}
#cookie-banner a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.cookie-banner-btns {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
}
.cookie-btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.4;
}
.cookie-btn-primary {
  background: var(--gradient-cta);
  color: #fff;
}
.cookie-btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.cookie-btn-secondary {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-light);
}
.cookie-btn-secondary:hover {
  color: var(--color-text);
  border-color: var(--color-text-dim);
}
@media (max-width: 480px) {
  .cookie-banner-inner { flex-direction: column; align-items: flex-start; }
  .cookie-banner-btns { width: 100%; }
  .cookie-btn { flex: 1; text-align: center; }
}

/* ===== Hide cat-hero-icon (emoji removed) ===== */
.cat-hero-icon { display: none; }

/* ===== Info / Warning box icons — CSS symbols ===== */
.info-icon, .warning-icon {
  font-size: 0;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.1rem;
}
.info-icon::before {
  content: '';
  width: 14px;
  height: 14px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2306b6d4' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cline x1='12' y1='8' x2='12' y2='8'/%3E%3Cpath d='M11 12h1v5h1'/%3E%3C/svg%3E") no-repeat center;
  background-size: contain;
}
.info-icon { background: transparent; border: none; }
.warning-icon::before {
  content: '';
  width: 14px;
  height: 14px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23eab308' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M10.29 3.86L1.82 18a2 2 0 0 0 1.71 3h16.94a2 2 0 0 0 1.71-3L13.71 3.86a2 2 0 0 0-3.42 0z'/%3E%3Cline x1='12' y1='9' x2='12' y2='13'/%3E%3Cline x1='12' y1='17' x2='12.01' y2='17'/%3E%3C/svg%3E") no-repeat center;
  background-size: contain;
}
.warning-icon { background: transparent; border: none; }