/* ============================================
   DARK EXPERIMENT: "Neon Nomad"
   Dark cyberpunk-meets-travel, glowing accents,
   glassmorphism, animated elements
   ============================================ */

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

:root {
  --bg-deep: #0a0e17;
  --bg-surface: #111827;
  --bg-card: #1a2235;
  --bg-card-hover: #1f2a40;
  --text-primary: #e8eaf0;
  --text-secondary: #b0b8c8;
  --text-muted: #5a6478;
  --accent: #f97316;
  --accent-light: #fb923c;
  --accent-glow: rgba(249, 115, 22, 0.15);
  --accent-glow-strong: rgba(249, 115, 22, 0.3);
  --cyan: #22d3ee;
  --cyan-glow: rgba(34, 211, 238, 0.12);
  --purple: #a78bfa;
  --green: #34d399;
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --glass: rgba(17, 24, 39, 0.7);
  --toc-width: 300px;
  --content-max: 820px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-deep);
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(249, 115, 22, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(34, 211, 238, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(167, 139, 250, 0.02) 0%, transparent 60%);
}

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-light); }

h1, h2, h3 { font-family: 'Playfair Display', Georgia, serif; color: var(--text-primary); }

code {
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 0.9em;
  background: rgba(249, 115, 22, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--accent-light);
  border: 1px solid rgba(249, 115, 22, 0.15);
}

/* --- Keyframe Animations --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px var(--accent-glow), 0 0 60px rgba(249, 115, 22, 0.05); }
  50% { box-shadow: 0 0 30px var(--accent-glow-strong), 0 0 80px rgba(249, 115, 22, 0.08); }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(-5deg); }
  50% { transform: translateY(-6px) rotate(-5deg); }
}

@keyframes borderGlow {
  0%, 100% { border-color: rgba(249, 115, 22, 0.3); }
  50% { border-color: rgba(249, 115, 22, 0.6); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes scanLine {
  0% { top: -2px; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

@keyframes gradientBorderSpin {
  0% { --angle: 0deg; }
  100% { --angle: 360deg; }
}

@keyframes typeReveal {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blinkCursor {
  0%, 100% { border-right-color: var(--accent); }
  50% { border-right-color: transparent; }
}

@keyframes staggerFade {
  from { opacity: 0; transform: translateX(-12px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulseRing {
  0% { transform: scale(1); opacity: 0.4; }
  100% { transform: scale(1.8); opacity: 0; }
}

/* --- Scroll-triggered animations --- */
.guide-section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.guide-section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger h3 reveals inside visible sections */
.guide-section.visible h3 {
  animation: slideInLeft 0.5s ease both;
}

.guide-section.visible h3:nth-of-type(2) { animation-delay: 0.1s; }
.guide-section.visible h3:nth-of-type(3) { animation-delay: 0.2s; }
.guide-section.visible h3:nth-of-type(4) { animation-delay: 0.3s; }
.guide-section.visible h3:nth-of-type(5) { animation-delay: 0.4s; }

/* Stagger TOC link entrance */
.toc-link {
  animation: staggerFade 0.4s ease both;
}
.toc li:nth-child(1) .toc-link { animation-delay: 0.1s; }
.toc li:nth-child(2) .toc-link { animation-delay: 0.15s; }
.toc li:nth-child(3) .toc-link { animation-delay: 0.2s; }
.toc li:nth-child(4) .toc-link { animation-delay: 0.25s; }
.toc li:nth-child(5) .toc-link { animation-delay: 0.3s; }
.toc li:nth-child(6) .toc-link { animation-delay: 0.35s; }
.toc li:nth-child(7) .toc-link { animation-delay: 0.4s; }

/* --- Sidebar TOC --- */
.toc {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--toc-width);
  height: 100vh;
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--border);
  padding: 32px 24px;
  overflow-y: auto;
  z-index: 100;
  transition: transform 0.3s ease;
  box-shadow: 2px 0 30px rgba(0, 0, 0, 0.3);
}

.toc-header {
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.toc-stamp {
  display: inline-block;
  font-family: 'Playfair Display', serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--accent);
  border: 2px solid var(--accent);
  padding: 5px 12px;
  border-radius: 4px;
  transform: rotate(-3deg);
  margin-bottom: 8px;
  text-align: center;
  animation: borderGlow 3s ease-in-out infinite;
  text-shadow: 0 0 10px var(--accent-glow);
}

.toc-byline {
  display: block;
  font-family: 'Inter', sans-serif;
  font-size: 7px;
  font-style: italic;
  color: var(--accent);
  margin-top: 3px;
  font-weight: 400;
  letter-spacing: 0.5px;
}

.toc h2 {
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-top: 8px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-family: 'Inter', sans-serif;
}

.toc ul { list-style: none; }

.toc li { margin-bottom: 2px; }

.toc-link {
  display: block;
  padding: 8px 12px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-left: 2px solid transparent;
  border-radius: 0 6px 6px 0;
  transition: all 0.25s ease;
}

.toc-link:hover {
  color: var(--accent-light);
  background: var(--accent-glow);
  border-left-color: var(--accent-light);
}

.toc-link.active {
  color: var(--accent);
  background: var(--accent-glow);
  border-left-color: var(--accent);
  font-weight: 600;
  text-shadow: 0 0 20px var(--accent-glow);
}

/* --- TOC Sub-navigation --- */
.toc-sub {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.toc-sub.open {
  max-height: 300px;
  margin: 2px 0 4px 0;
}

.toc-sub li {
  margin-bottom: 1px;
}

.toc-sublink {
  display: block;
  padding: 4px 12px 4px 28px;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--text-secondary);
  border-left: 2px solid transparent;
  border-radius: 0 6px 6px 0;
  transition: all 0.25s ease;
}

.toc-sublink:hover {
  color: var(--cyan);
  background: var(--cyan-glow);
  border-left-color: var(--cyan);
}

.toc-sublink.active {
  color: var(--cyan);
  background: var(--cyan-glow);
  border-left-color: var(--cyan);
  font-weight: 500;
  text-shadow: 0 0 15px var(--cyan-glow);
}

/* --- Mobile TOC Toggle --- */
.toc-toggle {
  display: none;
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 200;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  cursor: pointer;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  backdrop-filter: blur(10px);
}

.toc-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: all 0.3s;
}

.toc-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.toc-toggle.active span:nth-child(2) { opacity: 0; }
.toc-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* --- Main Content --- */
.content {
  margin-left: var(--toc-width);
  min-height: 100vh;
}

/* --- Hero --- */
.hero {
  background:
    linear-gradient(to bottom, rgba(10, 14, 23, 0.2) 0%, rgba(10, 14, 23, 0.55) 100%),
    url('images/fun2.png') center/cover no-repeat;
  padding: 140px 48px 120px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

/* animated gradient sweep on hero */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    125deg,
    transparent 0%,
    rgba(249, 115, 22, 0.05) 25%,
    transparent 50%,
    rgba(34, 211, 238, 0.04) 75%,
    transparent 100%
  );
  background-size: 200% 200%;
  animation: shimmer 8s ease-in-out infinite;
}

/* gradient line under hero */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--cyan), var(--purple), transparent);
  opacity: 0.5;
}

.hero-inner { max-width: 700px; margin: 0 auto; position: relative; z-index: 1; }

.hero-tag {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 600;
  text-shadow: 0 0 20px var(--accent-glow);
}

.hero h1 {
  font-size: 3.2rem;
  line-height: 1.15;
  margin-bottom: 20px;
  color: #fff;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5), 0 4px 40px rgba(0,0,0,0.4);
  animation: fadeInUp 0.8s ease both;
}

.hero h1 em {
  font-style: italic;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.6)) drop-shadow(0 4px 20px rgba(0,0,0,0.4));
}

.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.9);
  text-shadow: 0 1px 4px rgba(0,0,0,0.4);
  max-width: 560px;
  margin: 0 auto 36px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-cta {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--bg-deep);
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  padding: 14px 36px;
  border-radius: 50px;
  transition: all 0.3s;
  box-shadow: 0 4px 20px var(--accent-glow-strong);
  letter-spacing: 0.5px;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px var(--accent-glow-strong), 0 0 60px var(--accent-glow);
  color: var(--bg-deep);
}

/* --- Guide Sections --- */
.guide-section {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 64px 48px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.guide-section:last-of-type {
  border-bottom: none;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  font-size: 1.2rem;
  color: var(--accent);
  margin-bottom: 16px;
  box-shadow: 0 0 20px var(--accent-glow), inset 0 0 20px var(--accent-glow);
  position: relative;
}

.step-badge {
  font-family: 'Playfair Display', serif;
  font-weight: 800;
  font-size: 1.4rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--bg-deep);
  border-color: var(--accent);
  transform: rotate(-5deg);
  animation: float 4s ease-in-out infinite;
  box-shadow: 0 0 25px var(--accent-glow-strong);
}

/* Pulse ring behind step badges */
.step-badge::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  animation: pulseRing 2.5s ease-out infinite;
}

.guide-section h2 {
  font-size: 2rem;
  margin-bottom: 16px;
  line-height: 1.3;
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.guide-section h3 {
  font-size: 1.25rem;
  margin: 32px 0 12px;
  color: var(--text-primary);
  position: relative;
  padding-left: 16px;
}

.guide-section h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  background: linear-gradient(to bottom, var(--accent), var(--cyan));
  border-radius: 3px;
}

.guide-section p {
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.guide-section ul, .guide-section ol {
  margin: 0 0 20px 24px;
  color: var(--text-secondary);
}

.guide-section li {
  margin-bottom: 8px;
}

.guide-section li strong {
  color: var(--text-primary);
}

/* --- Benefit Grid --- */
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.benefit-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2), 0 0 20px var(--accent-glow);
  border-color: var(--border-hover);
}

.benefit-icon {
  font-size: 2rem;
  margin-bottom: 10px;
}

.benefit-card h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
  padding-left: 0;
}

.benefit-card h3::before { display: none; }

.benefit-card p {
  font-size: 0.92rem;
  margin-bottom: 0;
}

/* --- Requirements --- */
.requirements-list { margin-top: 16px; }

.requirement {
  background: var(--bg-card);
  border-left: 3px solid var(--accent);
  border-radius: 0 12px 12px 0;
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: -3px 0 20px var(--accent-glow);
}

.requirement:hover {
  box-shadow: -3px 0 30px var(--accent-glow-strong);
}

.requirement h3 {
  margin-top: 0 !important;
  font-size: 1.15rem;
}

/* --- Code Blocks --- */
.code-block {
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  margin: 20px 0;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: all 0.3s ease;
  position: relative;
}

/* Scan line effect on hover */
.code-block::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: -2px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  box-shadow: 0 0 15px var(--cyan), 0 0 30px var(--cyan-glow);
}

.code-block:hover::after {
  animation: scanLine 1.5s ease-in-out;
}

.code-block:hover {
  border-color: var(--border-hover);
  box-shadow: 0 4px 25px rgba(0,0,0,0.4), 0 0 15px var(--accent-glow);
}

.code-header {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 8px 16px;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
}

.code-block pre {
  padding: 20px;
  overflow-x: auto;
  margin: 0;
}

.code-block code {
  display: block;
  font-size: 0.88rem;
  line-height: 1.6;
  color: #c9d1d9;
  background: none;
  padding: 0;
  border-radius: 0;
  border: none;
}

/* --- Inline Images --- */
.inline-image {
  margin: 16px 0;
  max-width: 360px;
}

.inline-image img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: all 0.3s ease;
}

.inline-image img:hover {
  box-shadow: 0 8px 30px rgba(0,0,0,0.4), 0 0 20px var(--accent-glow);
  border-color: var(--border-hover);
}

/* --- Screenshot Placeholders --- */
.screenshot-placeholder {
  margin: 24px 0;
  border: 1px dashed var(--text-muted);
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-card);
}

.screenshot-inner {
  padding: 48px 24px;
  text-align: center;
  color: var(--text-muted);
}

.screenshot-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 8px;
  opacity: 0.3;
}

.screenshot-inner p {
  font-size: 0.88rem;
  font-style: italic;
  color: var(--text-muted);
  margin: 0;
}

/* --- Troubleshooting --- */
.troubleshoot-list { margin-top: 20px; }

details {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 10px;
  overflow: hidden;
  transition: all 0.3s ease;
}

details:hover { border-color: var(--border-hover); }

details summary {
  padding: 14px 20px;
  cursor: pointer;
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: background 0.2s;
}

details summary:hover { background: rgba(255,255,255,0.02); }

details[open] summary { border-bottom: 1px solid var(--border); }

details p { padding: 16px 20px; font-size: 0.92rem; }

/* --- Tip Cards --- */
.tip-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--green);
  border-radius: 0 12px 12px 0;
  padding: 24px;
  margin-bottom: 16px;
  transition: all 0.3s ease;
  box-shadow: -3px 0 15px rgba(52, 211, 153, 0.08);
}

.tip-card:hover {
  box-shadow: -3px 0 25px rgba(52, 211, 153, 0.15);
  border-color: var(--border-hover);
}

.tip-card h3 {
  font-size: 1.1rem;
  margin: 0 0 8px !important;
  color: var(--green);
  padding-left: 0;
}

.tip-card h3::before { display: none; }
.tip-card p { font-size: 0.95rem; }
.tip-card .code-block { margin-top: 12px; }

/* --- Product Cards --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.postcard {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.postcard:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3), 0 0 30px var(--accent-glow);
  border-color: var(--border-hover);
}

.product-image-placeholder {
  background: var(--bg-surface);
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.product-image-placeholder span { font-size: 2rem; display: block; margin-bottom: 4px; opacity: 0.3; }

/* --- Product Image Carousel --- */
.product-carousel {
  position: relative;
  background: var(--bg-surface);
  overflow: hidden;
}

.carousel-track {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
}

.carousel-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.carousel-img.active { opacity: 1; }

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50%;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(10px);
  color: white;
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
  transition: all 0.2s;
  z-index: 2;
}

.carousel-btn:hover {
  background: rgba(249, 115, 22, 0.6);
  box-shadow: 0 2px 15px var(--accent-glow-strong);
}

.carousel-prev { left: 10px; }
.carousel-next { right: 10px; }

.carousel-dots {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.25);
  transition: all 0.3s;
  cursor: pointer;
}

.carousel-dot.active {
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow-strong);
  transform: scale(1.2);
}

.product-info { padding: 24px; }

.product-info h3 {
  font-size: 1.15rem;
  margin-bottom: 4px;
  padding-left: 0;
}

.product-info h3::before { display: none; }

.product-role {
  font-size: 0.82rem;
  color: var(--cyan);
  font-weight: 600;
  margin-bottom: 8px !important;
  letter-spacing: 0.5px;
}

.product-desc { font-size: 0.9rem; }

.product-specs {
  list-style: none;
  margin: 0 0 12px !important;
  padding: 0;
}

.product-specs li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 4px 0 4px 20px;
  position: relative;
  margin-bottom: 2px;
}

.product-specs li::before {
  content: '▸';
  position: absolute;
  left: 4px;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.8rem;
}

.product-price {
  font-family: 'Playfair Display', serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px !important;
  text-shadow: 0 0 20px var(--accent-glow);
}

.product-link {
  display: inline-block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--bg-deep);
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  padding: 10px 28px;
  border-radius: 50px;
  transition: all 0.3s;
  box-shadow: 0 4px 15px var(--accent-glow-strong);
}

.product-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px var(--accent-glow-strong), 0 0 40px var(--accent-glow);
  color: var(--bg-deep);
}

/* --- Footer --- */
.site-footer {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 48px 48px 64px;
}

.affiliate-disclosure {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 24px;
}

.affiliate-disclosure p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
  .toc {
    transform: translateX(-100%);
  }

  .toc.open {
    transform: translateX(0);
  }

  .toc-toggle {
    display: flex;
  }

  .toc-toggle.active {
    left: 200px;
  }

  .content {
    margin-left: 0;
  }

  .hero {
    padding: 80px 24px 60px;
    background:
      linear-gradient(to bottom, rgba(10, 14, 23, 0.2) 0%, rgba(10, 14, 23, 0.55) 100%),
      url('images/fun_mobile.png') center/cover no-repeat;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .guide-section {
    padding: 48px 24px;
  }
}

@media (max-width: 640px) {
  body { font-size: 16px; }

  .hero h1 { font-size: 1.8rem; }
  .hero-sub { font-size: 1rem; }

  .benefit-grid {
    grid-template-columns: 1fr;
  }

  .product-grid {
    grid-template-columns: 1fr;
  }

  .guide-section h2 { font-size: 1.6rem; }

  .site-footer { padding: 32px 24px 48px; }
}