/* ============================================
   AIで稼ぐラボ - Main Stylesheet
   Pure CSS: No frameworks, ultra-fast
   ============================================ */

:root {
  --bg: #07070f;
  --bg-surface: #0f0f1a;
  --bg-card: #13131f;
  --bg-card-hover: #1c1c2e;
  --text: #e2e2f0;
  --text-muted: #7777aa;
  --text-dim: #444466;
  --accent: #7c3aed;
  --accent-light: #9d5cf5;
  --accent2: #06b6d4;
  --accent3: #f59e0b;
  --green: #10b981;
  --red: #ef4444;
  --gradient: linear-gradient(135deg, #7c3aed 0%, #06b6d4 100%);
  --gradient-warm: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --border: rgba(255, 255, 255, 0.07);
  --border-accent: rgba(124, 58, 237, 0.4);
  --shadow: 0 4px 32px rgba(0, 0, 0, 0.5);
  --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.4);
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Sans', 'Noto Sans JP', sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg: #f5f5ff;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f0ff;
  --text: #1a1a2e;
  --text-muted: #5555aa;
  --text-dim: #9999bb;
  --border: rgba(0, 0, 0, 0.08);
  --border-accent: rgba(124, 58, 237, 0.3);
  --shadow: 0 4px 32px rgba(100, 100, 200, 0.15);
  --shadow-card: 0 2px 16px rgba(100, 100, 200, 0.1);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

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

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 99px; }

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 64px;
  background: rgba(7, 7, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
}

[data-theme="light"] .site-header {
  background: rgba(255, 255, 255, 0.85);
}

.header-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
  letter-spacing: -0.02em;
}

.site-logo span { font-size: 1.1em; }

.header-nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.header-nav a {
  padding: 6px 14px;
  border-radius: 99px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
}

.header-nav a:hover {
  background: var(--bg-card);
  color: var(--text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-search, .btn-theme {
  width: 38px; height: 38px;
  border-radius: 99px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: var(--transition);
}

.btn-search:hover, .btn-theme:hover {
  background: var(--bg-card-hover);
  color: var(--text);
  border-color: var(--border-accent);
}

/* Search overlay */
.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(7, 7, 15, 0.95);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 120px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.search-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.search-box {
  width: 100%;
  max-width: 600px;
  padding: 0 24px;
}

.search-box input {
  width: 100%;
  padding: 16px 24px;
  font-size: 1.25rem;
  background: var(--bg-card);
  border: 2px solid var(--border-accent);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  outline: none;
}

.search-close {
  position: absolute;
  top: 20px; right: 24px;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
}

.hero-orb-1 {
  width: 600px; height: 600px;
  background: #7c3aed;
  top: -200px; left: -200px;
  animation: orb-float 8s ease-in-out infinite;
}

.hero-orb-2 {
  width: 500px; height: 500px;
  background: #06b6d4;
  bottom: -150px; right: -100px;
  animation: orb-float 10s ease-in-out infinite reverse;
}

.hero-orb-3 {
  width: 300px; height: 300px;
  background: #f59e0b;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: orb-float 6s ease-in-out infinite 2s;
}

@keyframes orb-float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(124, 58, 237, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 58, 237, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(124, 58, 237, 0.15);
  border: 1px solid rgba(124, 58, 237, 0.4);
  border-radius: 99px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-light);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 24px;
  animation: fade-in 0.6s ease forwards;
}

.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent-light);
  border-radius: 50%;
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  animation: fade-in-up 0.6s ease 0.1s both;
}

.hero-title .gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 40px;
  animation: fade-in-up 0.6s ease 0.2s both;
}

.hero-cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fade-in-up 0.6s ease 0.3s both;
}

.btn-primary {
  padding: 14px 32px;
  background: var(--gradient);
  border-radius: 99px;
  font-weight: 700;
  font-size: 1rem;
  color: white;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.5);
}

.btn-secondary {
  padding: 14px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 99px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 64px;
  animation: fade-in-up 0.6s ease 0.4s both;
}

.stat-item { text-align: center; }

.stat-number {
  font-size: 2rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 80px 0; }

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
  gap: 16px;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title::before {
  content: '';
  width: 4px; height: 28px;
  background: var(--gradient);
  border-radius: 99px;
  flex-shrink: 0;
}

.view-all {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-light);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
  white-space: nowrap;
}

.view-all:hover { gap: 8px; }

/* ============================================
   FEATURED ARTICLE
   ============================================ */
.featured-article {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  margin-bottom: 80px;
}

.featured-article:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.featured-thumb {
  aspect-ratio: 16/10;
  background: var(--gradient);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
}

.featured-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(124,58,237,0.3) 0%, rgba(6,182,212,0.3) 100%);
}

.thumb-icon {
  font-size: 6rem;
  z-index: 1;
  filter: drop-shadow(0 4px 20px rgba(0,0,0,0.5));
}

.featured-content {
  padding: 40px 40px 40px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.tag {
  padding: 4px 12px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.tag-ai { background: rgba(124,58,237,0.2); color: #a78bfa; }
.tag-money { background: rgba(245,158,11,0.2); color: #fbbf24; }
.tag-tool { background: rgba(6,182,212,0.2); color: #67e8f9; }
.tag-news { background: rgba(16,185,129,0.2); color: #6ee7b7; }
.tag-tutorial { background: rgba(239,68,68,0.2); color: #fca5a5; }

.meta-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.meta-readtime {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.featured-title {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.featured-excerpt {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

.featured-footer {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* ============================================
   ARTICLE CARDS
   ============================================ */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.articles-grid.col-2 {
  grid-template-columns: repeat(2, 1fr);
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  opacity: 0;
  transform: translateY(20px);
}

.article-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.article-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.card-thumb {
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  position: relative;
  overflow: hidden;
}

.card-thumb-1 { background: linear-gradient(135deg, #1e1b4b, #4c1d95); }
.card-thumb-2 { background: linear-gradient(135deg, #0c4a6e, #164e63); }
.card-thumb-3 { background: linear-gradient(135deg, #431407, #78350f); }
.card-thumb-4 { background: linear-gradient(135deg, #064e3b, #065f46); }
.card-thumb-5 { background: linear-gradient(135deg, #1e1b4b, #312e81); }
.card-thumb-6 { background: linear-gradient(135deg, #4a044e, #701a75); }
.card-thumb-7 { background: linear-gradient(135deg, #0f172a, #1e293b); }
.card-thumb-8 { background: linear-gradient(135deg, #3b0764, #6b21a8); }
.card-thumb-9 { background: linear-gradient(135deg, #082f49, #0c4a6e); }

.card-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.3) 100%);
}

.card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.card-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
  flex: 1;
}

.card-excerpt {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.card-read-more {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-light);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s ease;
}

.article-card:hover .card-read-more { gap: 8px; }

/* ============================================
   CATEGORY FILTER
   ============================================ */
.category-filter {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.cat-btn {
  padding: 8px 20px;
  border-radius: 99px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: var(--transition);
}

.cat-btn:hover, .cat-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

/* ============================================
   RANKING
   ============================================ */
.ranking-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ranking-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.ranking-item:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.rank-number {
  font-size: 1.5rem;
  font-weight: 900;
  min-width: 40px;
  text-align: center;
  color: var(--text-dim);
}

.rank-number.rank-1 { background: var(--gradient-warm); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.rank-number.rank-2 { color: #94a3b8; }
.rank-number.rank-3 { color: #cd7c2f; }

.rank-info { flex: 1; }
.rank-title { font-size: 0.9rem; font-weight: 600; line-height: 1.4; margin-bottom: 4px; }
.rank-meta { font-size: 0.75rem; color: var(--text-muted); }

/* ============================================
   SIDEBAR LAYOUT
   ============================================ */
.content-sidebar {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}

.sidebar { display: flex; flex-direction: column; gap: 24px; }

.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.widget-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ============================================
   AFFILIATE BANNER
   ============================================ */
.aff-banner {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
  border: 1px solid rgba(124,58,237,0.4);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.aff-banner::before {
  content: '⭐ PR';
  position: absolute;
  top: 8px; right: 12px;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.4);
}

.aff-banner-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.aff-banner-desc {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 16px;
  line-height: 1.6;
}

.aff-btn {
  display: inline-block;
  padding: 10px 24px;
  background: var(--gradient);
  border-radius: 99px;
  font-size: 0.85rem;
  font-weight: 700;
  color: white;
  transition: var(--transition);
}

.aff-btn:hover { transform: scale(1.05); }

/* ============================================
   NEWSLETTER
   ============================================ */
.newsletter-section {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
}

.newsletter-inner {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: 0 24px;
}

.newsletter-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  display: block;
}

.newsletter-title {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.newsletter-desc {
  color: var(--text-muted);
  margin-bottom: 32px;
}

.newsletter-form {
  display: flex;
  gap: 8px;
  max-width: 480px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: 14px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 99px;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.newsletter-form input:focus {
  border-color: var(--border-accent);
}

.newsletter-form input::placeholder {
  color: var(--text-dim);
}

/* ============================================
   TOOLS GRID
   ============================================ */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

.tool-card:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.tool-icon { font-size: 2.5rem; margin-bottom: 12px; }
.tool-name { font-size: 0.9rem; font-weight: 700; margin-bottom: 4px; }
.tool-desc { font-size: 0.75rem; color: var(--text-muted); }

.tool-rating {
  display: flex;
  justify-content: center;
  gap: 2px;
  margin-top: 10px;
  color: #f59e0b;
  font-size: 0.75rem;
}

/* ============================================
   INCOME REPORT
   ============================================ */
.income-card {
  background: linear-gradient(135deg, #0a0a1a 0%, #1a0a2e 100%);
  border: 1px solid rgba(124,58,237,0.3);
  border-radius: var(--radius-lg);
  padding: 40px;
  position: relative;
  overflow: hidden;
}

.income-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(124,58,237,0.15) 0%, transparent 70%);
}

.income-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}

.income-month {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.income-total {
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.income-growth {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  background: rgba(16,185,129,0.15);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: 99px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--green);
}

.income-breakdown {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.income-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.income-item-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.income-item-value {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .site-logo { font-size: 1.4rem; display: block; margin-bottom: 12px; }
.footer-brand p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.7; }

.footer-col-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color 0.2s ease;
}
.footer-links a:hover { color: var(--text); }

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); }

.footer-legal {
  display: flex;
  gap: 20px;
}

.footer-legal a {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.footer-legal a:hover { color: var(--text); }

/* ============================================
   ARTICLE PAGE
   ============================================ */
.article-page {
  padding-top: 64px;
  min-height: 100vh;
}

.article-hero {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 64px 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.breadcrumb a { color: var(--text-muted); transition: color 0.2s ease; }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb-sep { color: var(--text-dim); }

.article-page-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.article-page-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.author-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.author-name { font-size: 0.9rem; font-weight: 600; }
.author-role { font-size: 0.75rem; color: var(--text-muted); }

.article-page-body {
  padding: 64px 0;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 64px;
  align-items: start;
}

.article-content {
  max-width: 720px;
}

/* Article typography */
.article-content h2 {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 48px 0 20px;
  padding-left: 16px;
  border-left: 4px solid var(--accent);
  line-height: 1.3;
}

.article-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 32px 0 14px;
  color: var(--text);
}

.article-content p {
  color: var(--text-muted);
  margin-bottom: 20px;
  font-size: 1rem;
  line-height: 1.85;
}

.article-content strong { color: var(--text); font-weight: 700; }

.article-content ul, .article-content ol {
  margin: 0 0 20px 0;
  padding-left: 0;
  list-style: none;
}

.article-content ul li, .article-content ol li {
  color: var(--text-muted);
  padding: 6px 0 6px 28px;
  position: relative;
  line-height: 1.7;
}

.article-content ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-light);
  font-weight: 700;
}

.article-content ol {
  counter-reset: list;
}

.article-content ol li {
  counter-increment: list;
}

.article-content ol li::before {
  content: counter(list);
  position: absolute;
  left: 0;
  width: 20px; height: 20px;
  background: var(--accent);
  border-radius: 50%;
  color: white;
  font-size: 0.7rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  top: 8px;
}

.article-content blockquote {
  margin: 24px 0;
  padding: 20px 24px;
  background: rgba(124,58,237,0.08);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-muted);
  font-style: italic;
}

.article-content .highlight-box {
  background: linear-gradient(135deg, rgba(124,58,237,0.1), rgba(6,182,212,0.1));
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  padding: 24px;
  margin: 28px 0;
}

.article-content .highlight-box p { margin: 0; color: var(--text); }

.article-content .warning-box {
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.3);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 24px 0;
}

.article-content .warning-box p { margin: 0; color: var(--text); }

.article-content code {
  background: rgba(255,255,255,0.08);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.875em;
  color: var(--accent2);
}

.article-content pre {
  background: #0a0a15;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 24px;
  overflow-x: auto;
  margin: 24px 0;
}

.article-content pre code {
  background: none;
  padding: 0;
  color: #e2e8f0;
  font-size: 0.875rem;
  line-height: 1.6;
}

/* CTA Box */
.cta-box {
  background: linear-gradient(135deg, #1e1b4b, #0c4a6e);
  border: 1px solid rgba(124,58,237,0.3);
  border-radius: var(--radius);
  padding: 32px;
  margin: 40px 0;
  text-align: center;
}

.cta-box-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.cta-box-desc {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 20px;
}

.cta-box .btn-primary { display: inline-flex; }

/* TOC */
.toc-widget {
  position: sticky;
  top: 80px;
}

.toc-list { display: flex; flex-direction: column; gap: 6px; }
.toc-list a {
  font-size: 0.825rem;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 6px;
  border-left: 2px solid transparent;
  transition: var(--transition);
  display: block;
  line-height: 1.4;
}

.toc-list a:hover, .toc-list a.active {
  color: var(--accent-light);
  background: rgba(124,58,237,0.08);
  border-left-color: var(--accent);
}

.toc-list .toc-h3 { padding-left: 24px; }

/* Share */
.share-section {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.share-title { font-size: 0.9rem; font-weight: 700; margin-bottom: 16px; }
.share-buttons { display: flex; gap: 10px; flex-wrap: wrap; }
.share-btn {
  padding: 10px 20px;
  border-radius: 99px;
  font-size: 0.825rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.share-btn:hover { transform: translateY(-2px); }
.share-x { background: #1a1a1a; color: white; }
.share-line { background: #00b900; color: white; }
.share-copy { background: var(--bg-card); border: 1px solid var(--border); color: var(--text); }

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
  animation: fade-in-up 0.5s ease forwards;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .content-sidebar { grid-template-columns: 1fr; }
  .sidebar { grid-row: 1; }
  .article-layout { grid-template-columns: 1fr; }
  .toc-widget { position: static; }
}

@media (max-width: 768px) {
  .featured-article { grid-template-columns: 1fr; }
  .featured-content { padding: 24px; }
  .hero-stats { gap: 24px; }
  .stat-number { font-size: 1.5rem; }
  .header-nav { display: none; }
  .articles-grid { grid-template-columns: 1fr; }
  .income-breakdown { grid-template-columns: 1fr; }
  .newsletter-form { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .income-card { padding: 24px; }
}

@media (max-width: 480px) {
  .hero-inner { padding: 60px 20px; }
  .section { padding: 48px 0; }
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
}