/* ============================================
   THYUU 星度主题宣传站 — 样式表
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --primary: #6366f1;
  --primary-light: #a5b4fc;
  --primary-glow: rgba(99, 102, 241, 0.3);
  --secondary: #a5b4fc;
  --accent: #f59e0b;

  --bg: #0a0a0f;
  --bg-alt: #111118;
  --bg-card: #16161e;
  --bg-card-hover: #1e1e28;
  --surface: #1a1a24;
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);

  --text: #e8e8ed;
  --text-secondary: #9898a8;
  --text-tertiary: #686878;
  --text-on-primary: #ffffff;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg: 0 16px 64px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px var(--primary-glow);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg: #f5f5fa;
  --bg-alt: #eeeef4;
  --bg-card: #ffffff;
  --bg-card-hover: #f8f8fc;
  --surface: #ffffff;
  --border: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.15);
  --text: #111118;
  --text-secondary: #444458;
  --text-tertiary: #707088;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.08);
  --shadow-lg: 0 16px 64px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }

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

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Light mode specific fixes ---------- */
[data-theme="light"] .hero-badge {
  background: rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.25);
  color: #4f46e5;
}

[data-theme="light"] .section-tag {
  background: rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.2);
  color: #4f46e5;
}

[data-theme="light"] .nav-cta {
  background: #4f46e5;
}

[data-theme="light"] .btn-primary {
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  box-shadow: 0 4px 20px rgba(79, 70, 229, 0.3);
}

[data-theme="light"] .btn-primary:hover {
  box-shadow: 0 8px 32px rgba(79, 70, 229, 0.35);
}

[data-theme="light"] .contributor-role {
  background: rgba(99, 102, 241, 0.08);
  color: #4f46e5;
}

[data-theme="light"] .article-type-card.active {
  background: rgba(99, 102, 241, 0.06);
}

[data-theme="light"] .feature-card::before {
  background: linear-gradient(90deg, transparent, #4f46e5, transparent);
}

[data-theme="light"] #starfield {
  opacity: 0.15;
}

[data-theme="light"] .star-spinner {
  border-color: #ddd;
  border-top-color: #4f46e5;
}

[data-theme="light"] .testimonial-quote {
  border-left-color: #4f46e5;
}

[data-theme="light"] .af-num {
  background: linear-gradient(135deg, #4f46e5, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="light"] .layout-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

[data-theme="light"] .seasonal-card {
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

[data-theme="light"] .seasonal-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

[data-theme="light"] .platform-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

[data-theme="light"] .platform-link {
  border-color: rgba(0,0,0,0.12);
  color: #444458;
}

[data-theme="light"] .platform-link:hover {
  border-color: rgba(0,0,0,0.2);
  background: rgba(0,0,0,0.04);
  color: #111118;
}

[data-theme="light"] .platform-date {
  border-top-color: rgba(0,0,0,0.08);
}

[data-theme="light"] .orbit-ring {
  opacity: 0.12;
}

[data-theme="light"] .p-star {
  opacity: 0 !important;
}

[data-theme="light"] .platform-card:hover .p-star {
  opacity: 0.5;
}

[data-theme="light"] .platform-card::after {
  background: linear-gradient(
    45deg,
    transparent 40%,
    rgba(0, 0, 0, 0.01) 45%,
    rgba(0, 0, 0, 0.03) 50%,
    rgba(0, 0, 0, 0.01) 55%,
    transparent 60%
  );
}

[data-theme="light"] .template-card:hover {
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.12);
}

[data-theme="light"] .panel-card:hover,
[data-theme="light"] .contributor-card:hover,
[data-theme="light"] .testimonial-card:hover,
[data-theme="light"] .editor-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

[data-theme="light"] .block-item:hover {
  background: rgba(99, 102, 241, 0.06);
}

[data-theme="light"] .integration-item:hover,
[data-theme="light"] .af-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

/* ---------- Preloader ---------- */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-inner { text-align: center; }

.star-spinner {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.preloader-text {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--text-secondary);
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Navbar ---------- */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
  backdrop-filter: blur(0px);
}

#navbar.scrolled {
  padding: 10px 0;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

[data-theme="light"] #navbar.scrolled {
  background: rgba(248, 248, 252, 0.85);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 1px;
}

.logo-icon { width: 28px; height: 28px; }

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
  transition: width var(--transition);
}

.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 16px; }

#theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

#theme-toggle:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}

#theme-toggle svg { width: 18px; height: 18px; }
.icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

.nav-cta {
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  background: var(--primary);
  color: var(--text-on-primary);
  transition: all var(--transition);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  padding: 4px 0;
}

.mobile-menu-btn span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: all var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 999;
  background: var(--bg);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu a { font-size: 24px; font-weight: 600; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 15px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.btn svg { width: 18px; height: 18px; transition: transform var(--transition); }
.btn:hover svg { transform: translateX(4px); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #818cf8);
  color: var(--text-on-primary);
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--primary-glow);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-xl { padding: 20px 48px; font-size: 18px; }

/* ---------- Hero ---------- */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 24px 80px;
}

#starfield {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  margin-bottom: 32px;
}

.hero-title-line {
  display: block;
  font-size: clamp(40px, 8vw, 80px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
}

.hero-subtitle {
  margin-top: 24px;
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 48px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 64px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.stat { text-align: center; }

.stat-number {
  display: block;
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.stat-label {
  display: block;
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 8px;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-tertiary);
  font-size: 12px;
  animation: float 2s ease-in-out infinite;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--text-tertiary);
  border-bottom: 2px solid var(--text-tertiary);
  transform: rotate(45deg);
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ---------- Sections ---------- */
.section {
  padding: 120px 0;
  position: relative;
}

.section-alt { background: var(--bg-alt); }

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 72px;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.15);
  margin-bottom: 20px;
}

.section-header h2 {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ---------- Features Grid ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature-card:hover::before { opacity: 1; }

.feature-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  color: var(--primary);
}

.feature-icon svg { width: 100%; height: 100%; }

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- Color Section ---------- */
.color-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

.color-demo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.color-preview {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.color-swatch {
  flex: 1;
  height: 120px;
  border-radius: var(--radius-md);
  transition: background var(--transition);
}

.primary-swatch { background: var(--primary); }
.secondary-swatch { background: var(--secondary); }

.color-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
}

.color-row + .color-row { border-top: 1px solid var(--border); }

.color-label {
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  min-width: 80px;
}

.color-presets { display: flex; gap: 8px; flex-wrap: wrap; }

.color-dot {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  transition: all var(--transition);
  position: relative;
}

.color-dot:hover, .color-dot.active {
  transform: scale(1.2);
  border-color: var(--text);
  box-shadow: 0 0 12px rgba(0,0,0,0.3);
}

.theme-mode-demo {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mode-card {
  border-radius: var(--radius-lg);
  padding: 20px;
  flex: 1;
  transition: all var(--transition);
}

.mode-light {
  background: #f8f8fc;
  border: 1px solid #e0e0e8;
}

.mode-dark {
  background: #16161e;
  border: 1px solid rgba(255,255,255,0.08);
}

.mode-header {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.mode-content { padding: 8px 0; }

.mode-bar {
  height: 8px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.mode-light .mode-bar { background: var(--primary); }
.mode-dark .mode-bar { background: var(--primary); opacity: 0.8; }

.mode-text-block { margin-bottom: 12px; }

.mode-line {
  height: 4px;
  border-radius: 2px;
  margin-bottom: 6px;
}

.mode-light .mode-line { background: #d0d0d8; }
.mode-dark .mode-line { background: rgba(255,255,255,0.1); }

.mode-line.long { width: 100%; }
.mode-line.medium { width: 70%; }
.mode-line.short { width: 45%; }

.mode-cards { display: flex; gap: 8px; }

.mode-mini-card {
  flex: 1;
  height: 40px;
  border-radius: 6px;
}

.mode-light .mode-mini-card { background: #ebebf0; }
.mode-dark .mode-mini-card { background: rgba(255,255,255,0.05); }

/* Seasonal themes */
.seasonal-themes {
  margin-top: 72px;
  text-align: center;
}

.seasonal-themes h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.seasonal-desc {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.seasonal-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.seasonal-card {
  border-radius: var(--radius-lg);
  padding: 32px 20px;
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.seasonal-card:hover { transform: translateY(-6px); }

.seasonal-visual {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: var(--radius-md);
  position: relative;
}

.spring { background: linear-gradient(135deg, #ecfdf5, #d1fae5); color: #065f46; }
.spring .seasonal-visual { background: linear-gradient(135deg, #34d399, #6ee7b7); }

.summer { background: linear-gradient(135deg, #fef3c7, #fde68a); color: #92400e; }
.summer .seasonal-visual { background: linear-gradient(135deg, #fbbf24, #fcd34d); }

.autumn { background: linear-gradient(135deg, #fff7ed, #fed7aa); color: #9a3412; }
.autumn .seasonal-visual { background: linear-gradient(135deg, #f97316, #fb923c); }

.winter { background: linear-gradient(135deg, #eff6ff, #dbeafe); color: #1e40af; }
.winter .seasonal-visual { background: linear-gradient(135deg, #60a5fa, #93c5fd); }

.seasonal-name {
  display: block;
  font-size: 18px;
  font-weight: 700;
}

.seasonal-en {
  display: block;
  font-size: 12px;
  opacity: 0.6;
  margin-top: 4px;
}

/* ---------- Layout Section ---------- */
.layout-options { display: flex; flex-direction: column; gap: 48px; }

.layout-group h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-left: 4px;
}

.layout-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.layout-cards.three-col { grid-template-columns: repeat(3, 1fr); }
.layout-cards.five-col { grid-template-columns: repeat(5, 1fr); }

.layout-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  transition: all var(--transition);
}

.layout-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.layout-card span {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-top: 12px;
}

.layout-card p {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 4px;
}

.layout-preview {
  height: 100px;
  background: var(--bg-alt);
  border-radius: var(--radius-sm);
  overflow: hidden;
  padding: 12px;
  position: relative;
}

.lp-bar {
  height: 6px;
  width: 100%;
  background: var(--primary);
  opacity: 0.3;
  border-radius: 3px;
  margin-bottom: 8px;
}

.lp-content {
  height: calc(100% - 14px);
  border-radius: 4px;
  background: var(--border);
}

.lp-content.wide { width: 100%; }
.lp-content.narrow { width: 70%; margin: 0 auto; }

.layout-card.mini { padding: 14px; }

.lp-identity {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 12px 0;
}

.lp-id-logo {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.5;
}

.lp-id-title {
  width: 48px;
  height: 4px;
  background: var(--text);
  opacity: 0.2;
  border-radius: 2px;
}

.lp-id-title.side { margin-left: auto; }
.lp-id-sub { width: 32px; height: 3px; background: var(--text); opacity: 0.1; border-radius: 2px; }

.lp-navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px;
}

.lp-logo {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.5;
}

.lp-logo.center { margin: 0 auto; }
.lp-logo.left { margin: 0; }

.lp-dots {
  display: flex;
  gap: 4px;
}

.lp-dots::before,
.lp-dots::after {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text);
  opacity: 0.15;
}

.article-preview { display: flex; gap: 8px; padding: 8px; }
.article-preview.immersive { position: relative; }

.lp-article-cover {
  width: 50%;
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  opacity: 0.2;
}

.article-preview:not(.immersive) .lp-article-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.lp-article-overlay {
  position: absolute;
  bottom: 12px;
  left: 12px;
  right: 12px;
}

.lp-line {
  height: 4px;
  background: var(--text);
  opacity: 0.15;
  border-radius: 2px;
  margin-bottom: 6px;
}

.lp-line.light { background: white; opacity: 0.6; }
.lp-line.short { width: 60%; }

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

.template-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
}

.template-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.template-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.template-card h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.template-card p {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ---------- Article Types ---------- */
.article-types {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.article-type-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
  min-width: 80px;
}

.article-type-card:hover, .article-type-card.active {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.08);
}

.article-type-card.active { box-shadow: var(--shadow-glow); }

.at-icon { font-size: 24px; }

.article-type-card span {
  font-size: 12px;
  font-weight: 600;
}

/* Article feature groups */
.af-groups {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.af-group {}

.af-group-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 16px;
  padding-left: 2px;
}

.af-label-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

.af-group-items {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.af-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.af-card:hover {
  border-color: var(--border-hover);
  transform: translateX(4px);
}

.af-card-icon {
  font-size: 26px;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-alt);
  border-radius: var(--radius-sm);
}

.af-card-text h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 2px;
}

.af-card-text p {
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.5;
}

/* ---------- Panel Section ---------- */
.panel-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.panel-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  transition: all var(--transition);
}

.panel-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.panel-icon { font-size: 32px; margin-bottom: 14px; }

.panel-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.panel-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---------- Integration ---------- */
.integration-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 800px;
  margin: 0 auto;
}

.integration-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.integration-item:hover {
  border-color: var(--border-hover);
  transform: translateX(4px);
}

.int-icon { font-size: 28px; flex-shrink: 0; }

.int-info h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.int-info p { font-size: 13px; color: var(--text-secondary); }

/* ---------- Editor ---------- */
.editor-showcase {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.editor-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  text-align: center;
  transition: all var(--transition);
}

.editor-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.editor-logo {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  color: var(--primary);
}

.editor-logo svg { width: 100%; height: 100%; }

.editor-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.editor-card p {
  font-size: 14px;
  color: var(--text-secondary);
}

.editor-blocks {
  text-align: center;
}

.editor-blocks h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
}

.blocks-grid {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.block-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
}

.block-item:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.08);
}

.block-icon { font-size: 18px; }

/* ---------- Authors ---------- */
.author-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.author-feat {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.author-feat:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.af-num {
  font-size: 48px;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}

.af-text h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.af-text p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

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

.contributor-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  transition: all var(--transition);
}

.contributor-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.contributor-avatar {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: white;
}

.contributor-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }

.contributor-role {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
  margin-bottom: 8px;
}

.contributor-card p {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ---------- Testimonials ---------- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}

.testimonial-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.testimonial-quote {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-style: italic;
  position: relative;
  padding-left: 16px;
  border-left: 2px solid var(--primary);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}

.testimonial-author strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
}

.testimonial-author span {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* ---------- Platforms ---------- */
.platforms-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.platform-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.platform-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

/* ---- Accent bar ---- */
.platform-accent {
  height: 3px;
  width: 100%;
  position: relative;
  z-index: 2;
}

.platform-card[data-platform="halo"] .platform-accent {
  background: linear-gradient(90deg, #6366f1, #818cf8, #a5b4fc);
}
.platform-card[data-platform="wordpress"] .platform-accent {
  background: linear-gradient(90deg, #06b6d4, #22d3ee, #67e8f9);
}
.platform-card[data-platform="nvpress"] .platform-accent {
  background: linear-gradient(90deg, #f59e0b, #fbbf24, #fcd34d);
}

/* Accent shimmer on hover */
.platform-accent::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 20%, rgba(255,255,255,0.5) 50%, transparent 80%);
  transform: translateX(-100%);
  transition: transform 0.7s ease;
}
.platform-card:hover .platform-accent::after {
  transform: translateX(100%);
}

/* ---- Glow behind icon ---- */
.platform-glow {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 160px;
  height: 160px;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
  z-index: 0;
}

.platform-card[data-platform="halo"] .platform-glow { background: #6366f1; }
.platform-card[data-platform="wordpress"] .platform-glow { background: #06b6d4; }
.platform-card[data-platform="nvpress"] .platform-glow { background: #f59e0b; }

.platform-card:hover .platform-glow { opacity: 0.12; }

/* ---- Star dots (constellation decoration) ---- */
.p-star {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.6s ease;
}

.platform-card:hover .p-star { opacity: 1; }

.p-star.s1 { width: 3px; height: 3px; top: 18%; left: 12%; animation: starTwinkle 2.4s ease-in-out infinite; }
.p-star.s2 { width: 2px; height: 2px; top: 30%; right: 15%; animation: starTwinkle 3.1s ease-in-out 0.4s infinite; }
.p-star.s3 { width: 2px; height: 2px; top: 55%; left: 8%; animation: starTwinkle 2.8s ease-in-out 0.8s infinite; }
.p-star.s4 { width: 3px; height: 3px; bottom: 22%; right: 10%; animation: starTwinkle 3.5s ease-in-out 1.2s infinite; }
.p-star.s5 { width: 2px; height: 2px; bottom: 35%; left: 20%; animation: starTwinkle 2.2s ease-in-out 0.6s infinite; }

.platform-card[data-platform="halo"] .p-star { background: #818cf8; box-shadow: 0 0 6px #818cf8; }
.platform-card[data-platform="wordpress"] .p-star { background: #22d3ee; box-shadow: 0 0 6px #22d3ee; }
.platform-card[data-platform="nvpress"] .p-star { background: #fbbf24; box-shadow: 0 0 6px #fbbf24; }

@keyframes starTwinkle {
  0%, 100% { opacity: 0.3; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1.3); }
}

/* ---- Shine sweep (like contributor cards) ---- */
.platform-card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 40%,
    rgba(255, 255, 255, 0.02) 45%,
    rgba(255, 255, 255, 0.05) 50%,
    rgba(255, 255, 255, 0.02) 55%,
    transparent 60%
  );
  transform: translateX(-100%);
  transition: transform 0.7s ease;
  pointer-events: none;
  z-index: 3;
}

.platform-card:hover::after {
  transform: translateX(100%);
}

/* ---- Card body ---- */
.platform-body {
  padding: 36px 24px 24px;
  text-align: center;
  position: relative;
  z-index: 1;
}

/* ---- Platform icon with orbit rings ---- */
.platform-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.platform-icon svg {
  width: 28px;
  height: 28px;
  position: relative;
  z-index: 2;
  transition: all var(--transition);
}

.platform-card[data-platform="halo"] .platform-icon svg { color: #818cf8; }
.platform-card[data-platform="wordpress"] .platform-icon svg { color: #22d3ee; }
.platform-card[data-platform="nvpress"] .platform-icon svg { color: #fbbf24; }

.platform-card:hover .platform-icon svg {
  transform: scale(1.1);
}

/* Orbit rings — echoing the THYUU logo concentric circles */
.orbit-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid;
  opacity: 0.2;
  transition: all 0.5s ease;
}

.platform-card[data-platform="halo"] .orbit-ring { border-color: #818cf8; }
.platform-card[data-platform="wordpress"] .orbit-ring { border-color: #22d3ee; }
.platform-card[data-platform="nvpress"] .orbit-ring { border-color: #fbbf24; }

.orbit-ring:not(.r2) {
  width: 48px;
  height: 48px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-style: dashed;
}

.orbit-ring.r2 {
  width: 64px;
  height: 64px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-style: solid;
  opacity: 0.1;
}

.platform-card:hover .orbit-ring:not(.r2) {
  opacity: 0.4;
  animation: orbitSpin 12s linear infinite;
}

.platform-card:hover .orbit-ring.r2 {
  opacity: 0.2;
  animation: orbitSpin 20s linear infinite reverse;
}

@keyframes orbitSpin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ---- Platform name ---- */
.platform-body h4 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}

.platform-meta {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 24px;
}

/* ---- Link buttons ---- */
.platform-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.platform-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--transition);
}

.platform-link svg {
  width: 11px;
  height: 11px;
  opacity: 0;
  transform: translate(-3px, 3px);
  transition: all var(--transition);
}

.platform-link:hover svg {
  opacity: 0.6;
  transform: translate(0, 0);
}

.platform-link:hover {
  border-color: var(--border-hover);
  color: var(--text);
  background: var(--bg-card-hover);
}

/* Primary (purchase) — filled gradient */
.platform-link.primary {
  border-color: transparent;
  color: var(--text-on-primary);
}

.platform-card[data-platform="halo"] .platform-link.primary {
  background: linear-gradient(135deg, #6366f1, #818cf8);
}
.platform-card[data-platform="wordpress"] .platform-link.primary {
  background: linear-gradient(135deg, #06b6d4, #22d3ee);
}
.platform-card[data-platform="nvpress"] .platform-link.primary {
  background: linear-gradient(135deg, #f59e0b, #fbbf24);
  color: #1a1a24;
}

.platform-link.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
}

.platform-link.primary svg {
  transform: translate(0, 0);
  opacity: 0.7;
}

/* ---- Date badge ---- */
.platform-date {
  font-size: 12px;
  color: var(--text-tertiary);
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.date-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.platform-card[data-platform="halo"] .date-dot { background: #818cf8; }
.platform-card[data-platform="wordpress"] .date-dot { background: #22d3ee; }
.platform-card[data-platform="nvpress"] .date-dot { background: #fbbf24; }

/* ---------- Footer ---------- */
#footer {
  padding: 80px 0 32px;
  border-top: 1px solid var(--border);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 48px;
}

.footer-brand { max-width: 300px; }

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: 64px;
}

.footer-col h5 {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
  color: var(--text-tertiary);
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 10px;
  transition: color var(--transition);
}

.footer-col a:hover { color: var(--primary); }

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 4px;
}

/* ---------- Enhanced Visual Effects ---------- */

/* Custom Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 4px;
  opacity: 0.5;
}
::-webkit-scrollbar-thumb:hover { background: var(--primary-light); }

/* Hero gradient orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

.hero-orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  animation: orbFloat1 8s ease-in-out infinite;
}

.hero-orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
  bottom: -50px;
  left: -100px;
  animation: orbFloat2 10s ease-in-out infinite;
}

.hero-orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  top: 40%;
  left: 50%;
  opacity: 0.15;
  animation: orbFloat3 12s ease-in-out infinite;
}

@keyframes orbFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-30px, 40px) scale(1.1); }
  66% { transform: translate(20px, -20px) scale(0.95); }
}

@keyframes orbFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(1.1); }
}

@keyframes orbFloat3 {
  0%, 100% { transform: translate(-50%, 0) scale(1); }
  50% { transform: translate(-50%, -40px) scale(1.15); }
}

/* Section gradient decoration */
.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0.2;
}

.section-alt::before { display: none; }

/* Section orb decoration */
.section-orb {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.08;
  pointer-events: none;
  z-index: 0;
}

.section-orb-left { left: -150px; top: 50%; transform: translateY(-50%); background: var(--primary); }
.section-orb-right { right: -150px; top: 50%; transform: translateY(-50%); background: var(--secondary); }

/* Feature card gradient border effect */
.feature-card {
  position: relative;
  background: var(--bg-card);
  z-index: 1;
}

.feature-card::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent), var(--primary));
  background-size: 300% 300%;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.5s ease;
  animation: gradientShift 4s ease infinite;
}

.feature-card:hover::after {
  opacity: 1;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Feature card glow on hover */
.feature-card .feature-glow {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: var(--primary);
  filter: blur(60px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
  z-index: -1;
}

.feature-card:hover .feature-glow { opacity: 0.08; }

/* Seasonal card floating particles */
.seasonal-card { overflow: hidden; }

.season-particle {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  opacity: 0;
  pointer-events: none;
}

.spring .season-particle { background: #34d399; }
.summer .season-particle { background: #fbbf24; }
.autumn .season-particle { background: #f97316; }
.winter .season-particle { background: #93c5fd; }

.seasonal-card:hover .season-particle {
  animation: particleFloat 2s ease-out infinite;
}

.seasonal-card .season-particle:nth-child(1) { left: 20%; bottom: 10%; animation-delay: 0s; }
.seasonal-card .season-particle:nth-child(2) { left: 50%; bottom: 10%; animation-delay: 0.3s; }
.seasonal-card .season-particle:nth-child(3) { left: 80%; bottom: 10%; animation-delay: 0.6s; }
.seasonal-card .season-particle:nth-child(4) { left: 35%; bottom: 10%; animation-delay: 0.9s; }
.seasonal-card .season-particle:nth-child(5) { left: 65%; bottom: 10%; animation-delay: 1.2s; }

@keyframes particleFloat {
  0% { transform: translateY(0) scale(0); opacity: 0; }
  20% { transform: translateY(-20px) scale(1); opacity: 0.8; }
  100% { transform: translateY(-120px) scale(0.3); opacity: 0; }
}

/* Back to top button */
#back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 900;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: var(--text-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition);
  cursor: pointer;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px var(--primary-glow);
}

#back-to-top svg { width: 20px; height: 20px; }

/* Marquee banner */
.marquee-banner {
  overflow: hidden;
  padding: 16px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}

.marquee-track {
  display: flex;
  gap: 48px;
  animation: marquee 30s linear infinite;
  white-space: nowrap;
}

.marquee-item {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.marquee-item .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--primary);
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Hero entrance animation */
.hero-content .hero-badge { animation: heroFadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.6s both; }
.hero-content h1 { animation: heroFadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.8s both; }
.hero-content .hero-subtitle { animation: heroFadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 1s both; }
.hero-content .hero-actions { animation: heroFadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 1.2s both; }
.hero-content .hero-stats { animation: heroFadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 1.4s both; }
.hero-scroll-hint { animation: heroFadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 1.6s both; }

@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hero title gradient animation */
.gradient-text {
  background-size: 200% 200%;
  animation: gradientText 3s ease infinite;
}

@keyframes gradientText {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Parallax scroll indicator */
.hero-scroll-hint {
  animation: heroFadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 1.6s both, float 2s ease-in-out infinite 2s;
}

/* Template card icon bounce */
.template-card:hover .template-icon {
  animation: iconBounce 0.4s ease;
}

@keyframes iconBounce {
  0%, 100% { transform: translateY(0); }
  40% { transform: translateY(-8px); }
  60% { transform: translateY(-4px); }
}

/* Pulse effect for active article type */
.article-type-card.active::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: var(--radius-md);
  background: var(--primary);
  opacity: 0.15;
  z-index: -1;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.1; transform: scale(1); }
  50% { opacity: 0.2; transform: scale(1.02); }
}

/* Contributor card hover shine */
.contributor-card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 40%,
    rgba(255, 255, 255, 0.03) 45%,
    rgba(255, 255, 255, 0.06) 50%,
    rgba(255, 255, 255, 0.03) 55%,
    transparent 60%
  );
  transform: translateX(-100%) rotate(0deg);
  transition: transform 0.6s ease;
  pointer-events: none;
}

.contributor-card:hover::after {
  transform: translateX(100%) rotate(0deg);
}

.contributor-card {
  position: relative;
  overflow: hidden;
}

/* Testimonial card quote decoration */
.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 12px;
  right: 20px;
  font-size: 64px;
  font-weight: 900;
  color: var(--primary);
  opacity: 0.06;
  line-height: 1;
  font-family: Georgia, serif;
}

.testimonial-card {
  position: relative;
  overflow: hidden;
}

/* Panel card subtle gradient */
.panel-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  opacity: 0;
  transition: opacity var(--transition);
}

.panel-card:hover::before { opacity: 1; }

.panel-card {
  position: relative;
  overflow: hidden;
}

/* Integration item number */
.integration-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--primary), transparent);
  border-radius: 2px;
  opacity: 0;
  transition: opacity var(--transition);
}

.integration-item:hover::before { opacity: 1; }

.integration-item {
  position: relative;
  overflow: hidden;
}

/* Author feature hover effect */
.author-feat::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.03), transparent);
  opacity: 0;
  transition: opacity var(--transition);
  border-radius: var(--radius-lg);
}

.author-feat:hover::before { opacity: 1; }

.author-feat {
  position: relative;
  overflow: hidden;
}

/* Color swatch hover effect */
.color-swatch {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.color-swatch::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.15) 50%, transparent 60%);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.color-swatch:hover::after {
  transform: translateX(100%);
}

/* Layout card mini hover */
.layout-card.mini:hover {
  background: rgba(99, 102, 241, 0.05);
}

/* Editor card subtle animation */
.editor-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at 50% 0%, var(--primary), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition);
}

.editor-card:hover::before { opacity: 0.04; }

.editor-card {
  position: relative;
  overflow: hidden;
}

/* Block item hover animation */
.block-item::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.block-item:hover::before { opacity: 1; }

.block-item {
  position: relative;
  overflow: hidden;
}

/* ---------- Animations ---------- */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

[data-animate="fade-up"].visible { transform: translateY(0); }

/* ---------- Responsive ---------- */

/* Large tablets / small desktops */
@media (max-width: 1024px) {
  .container { padding: 0 20px; }
  .nav-container { padding: 0 20px; }

  .section { padding: 100px 0; }
  .section-header { margin-bottom: 56px; }

  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .color-showcase { grid-template-columns: 1fr; }
  .seasonal-cards { grid-template-columns: repeat(2, 1fr); }
  .templates-grid { grid-template-columns: repeat(2, 1fr); }
  .layout-cards.three-col { grid-template-columns: repeat(2, 1fr); }
  .layout-cards.five-col { grid-template-columns: repeat(3, 1fr); }
  .af-groups { grid-template-columns: repeat(2, 1fr); }
  .panel-features { grid-template-columns: repeat(2, 1fr); }
  .integration-list { grid-template-columns: 1fr; }
  .editor-showcase { grid-template-columns: 1fr; }
  .author-features { grid-template-columns: 1fr; }
  .contributors-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }

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

  .platforms-grid .platform-card:last-child {
    grid-column: 1 / -1;
    max-width: 50%;
    justify-self: center;
  }

  .footer-links { gap: 40px; }
}

/* Tablets / large phones */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .mobile-menu-btn { display: flex; }
  .mobile-menu { display: flex; }

  .container { padding: 0 16px; }
  .nav-container { padding: 0 16px; }

  #hero {
    padding: 100px 16px 60px;
    min-height: 100dvh;
  }

  .section { padding: 72px 0; }
  .section-header { margin-bottom: 40px; }
  .section-header h2 { letter-spacing: -0.5px; }
  .section-header p { font-size: 15px; }

  .hero-badge {
    font-size: 12px;
    padding: 5px 12px;
    margin-bottom: 24px;
  }

  .hero-subtitle {
    font-size: 16px;
    margin-top: 16px;
  }

  .hero-subtitle br { display: none; }

  .hero-actions {
    margin-top: 32px;
    gap: 12px;
  }

  .hero-stats {
    gap: 16px;
    margin-top: 40px;
    padding-top: 32px;
    flex-wrap: wrap;
  }

  .stat {
    flex: 1 1 calc(50% - 16px);
    min-width: 120px;
  }

  .stat-number { font-size: 28px; }
  .stat-label { font-size: 12px; }

  .hero-orb-1 {
    width: 300px;
    height: 300px;
    top: -50px;
    right: -50px;
  }

  .hero-orb-2 {
    width: 250px;
    height: 250px;
    bottom: -30px;
    left: -50px;
  }

  .hero-orb-3 {
    width: 200px;
    height: 200px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .feature-card { padding: 28px 20px; }

  .color-demo-card { padding: 20px; }
  .color-swatch { height: 80px; }

  .templates-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .template-card { padding: 24px 16px; }

  .layout-cards { gap: 12px; }
  .layout-card { padding: 16px; }
  .layout-preview { height: 80px; }

  .article-types {
    gap: 8px;
    margin-bottom: 32px;
  }

  .article-type-card {
    padding: 16px 18px;
    min-width: 72px;
  }

  .at-icon { font-size: 24px; }

  .af-groups {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .panel-features {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .panel-card { padding: 24px 20px; }

  .integration-list {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .integration-item { padding: 16px; }

  .editor-showcase {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 32px;
  }

  .editor-card { padding: 28px 24px; }

  .author-features {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .author-feat {
    padding: 20px;
    gap: 16px;
  }

  .af-num { font-size: 36px; }

  .contributors-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .contributor-card { padding: 24px 20px; }

  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .testimonial-card { padding: 24px 20px; }
  .testimonial-quote { font-size: 14px; }

  .platforms-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 40px;
  }

  .platforms-grid .platform-card:last-child {
    max-width: 100%;
  }

  .platform-body { padding: 28px 20px 20px; }
  .platform-body h4 { font-size: 20px; }
  .platform-icon { width: 56px; height: 56px; margin-bottom: 14px; }
  .orbit-ring:not(.r2) { width: 42px; height: 42px; }
  .orbit-ring.r2 { width: 56px; height: 56px; }
  .platform-links { gap: 6px; }
  .platform-link { padding: 6px 14px; font-size: 12px; }

  .btn-lg {
    padding: 14px 28px;
    font-size: 15px;
  }

  .btn-xl {
    padding: 16px 36px;
    font-size: 16px;
  }

  .footer-top {
    flex-direction: column;
    gap: 32px;
    margin-bottom: 32px;
  }

  .footer-links {
    gap: 32px;
    flex-wrap: wrap;
  }

  .footer-brand { max-width: 100%; }

  #back-to-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
  }

  .marquee-track { gap: 32px; }
  .marquee-item { font-size: 13px; }

  /* Reduce motion on mobile for performance */
  .hero-orb { filter: blur(60px); }
}

/* Small phones */
@media (max-width: 576px) {
  .hero-title-line {
    font-size: clamp(32px, 10vw, 48px);
    letter-spacing: -1px;
  }

  .seasonal-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .seasonal-card { padding: 24px 12px; }

  .seasonal-visual {
    width: 48px;
    height: 48px;
  }

  .seasonal-name { font-size: 15px; }

  .templates-grid { grid-template-columns: 1fr; }
  .layout-cards.five-col { grid-template-columns: repeat(2, 1fr); }
  .panel-features { grid-template-columns: 1fr; }
  .contributors-grid { grid-template-columns: 1fr; }

  .footer-links { gap: 24px; }
  .footer-col h5 { margin-bottom: 12px; }
}

/* Extra small phones */
@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .color-preview { flex-direction: column; }
  .color-swatch { height: 60px; }

  .layout-cards { grid-template-columns: 1fr; }
  .layout-cards.three-col { grid-template-columns: 1fr; }
  .layout-cards.five-col { grid-template-columns: repeat(2, 1fr); }

  .article-type-card {
    padding: 14px 16px;
    min-width: 64px;
  }

  .blocks-grid { gap: 10px; }

  .block-item {
    padding: 8px 14px;
    font-size: 13px;
  }

  .marquee-item { font-size: 12px; }

  .testimonial-card::before { font-size: 48px; }
}

/* Landscape phones */
@media (max-height: 500px) and (orientation: landscape) {
  #hero { min-height: auto; padding-top: 80px; }
  .hero-scroll-hint { display: none; }
  .hero-stats { margin-top: 24px; padding-top: 24px; }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .marquee-track { animation: none; }
  .star-spinner { animation: none; }
}