/* ===== FONT FACES ===== */
@font-face {
  font-display: swap;
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 300;
  src: url('/fonts/dm-sans-v17-latin-300.woff2') format('woff2');
}
@font-face {
  font-display: swap;
  font-family: 'DM Sans';
  font-style: italic;
  font-weight: 300;
  src: url('/fonts/dm-sans-v17-latin-300italic.woff2') format('woff2');
}
@font-face {
  font-display: swap;
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 400;
  src: url('/fonts/dm-sans-v17-latin-regular.woff2') format('woff2');
}
@font-face {
  font-display: swap;
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 500;
  src: url('/fonts/dm-sans-v17-latin-500.woff2') format('woff2');
}
@font-face {
  font-display: swap;
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 700;
  src: url('/fonts/dm-sans-v17-latin-700.woff2') format('woff2');
}
@font-face {
  font-display: swap;
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400;
  src: url('/fonts/jetbrains-mono-v24-cyrillic_cyrillic-ext_greek_latin_latin-ext_vietnamese-regular.woff2') format('woff2');
}
@font-face {
  font-display: swap;
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 500;
  src: url('/fonts/jetbrains-mono-v24-cyrillic_cyrillic-ext_greek_latin_latin-ext_vietnamese-500.woff2') format('woff2');
}
@font-face {
  font-display: swap;
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 700;
  src: url('/fonts/jetbrains-mono-v24-cyrillic_cyrillic-ext_greek_latin_latin-ext_vietnamese-700.woff2') format('woff2');
}

/* ===== CSS VARIABLES & THEMES ===== */
:root {
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --accent: #0066FF;
  --accent-2: #00C9A7;
  --accent-glow: rgba(0,102,255,0.18);
  --bg: #F4F6FA;
  --bg-card: #FFFFFF;
  --bg-card-2: #EEF1F8;
  --text: #0D1117;
  --text-muted: #5A6478;
  --text-light: #8892A4;
  --border: rgba(0,0,0,0.08);
  --shadow: 0 2px 24px rgba(0,0,0,0.07), 0 1px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.10), 0 2px 12px rgba(0,0,0,0.06);
  --header-bg: rgba(244,246,250,0.85);
  --badge-v4-bg: rgba(0,102,255,0.08);
  --badge-v4-text: #0052CC;
  --badge-v6-bg: rgba(0,201,167,0.10);
  --badge-v6-text: #00876F;
  --grid-line: rgba(0,102,255,0.05);
  --status-ok: #10B981;
  --status-warn: #F59E0B;
  --status-error: #EF4444;
}

[data-theme="dark"] {
  --bg: #0A0D14;
  --bg-card: #111620;
  --bg-card-2: #161C2A;
  --text: #E8EDF5;
  --text-muted: #8892A4;
  --text-light: #5A6478;
  --border: rgba(255,255,255,0.07);
  --shadow: 0 2px 24px rgba(0,0,0,0.40), 0 1px 4px rgba(0,0,0,0.25);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.50), 0 2px 12px rgba(0,0,0,0.30);
  --header-bg: rgba(10,13,20,0.85);
  --badge-v4-bg: rgba(0,102,255,0.15);
  --badge-v4-text: #5B9BFF;
  --badge-v6-bg: rgba(0,201,167,0.12);
  --badge-v6-text: #00C9A7;
  --grid-line: rgba(0,102,255,0.06);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) {
    --bg: #0A0D14;
    --bg-card: #111620;
    --bg-card-2: #161C2A;
    --text: #E8EDF5;
    --text-muted: #8892A4;
    --text-light: #5A6478;
    --border: rgba(255,255,255,0.07);
    --shadow: 0 2px 24px rgba(0,0,0,0.40), 0 1px 4px rgba(0,0,0,0.25);
    --shadow-lg: 0 8px 48px rgba(0,0,0,0.50), 0 2px 12px rgba(0,0,0,0.30);
    --header-bg: rgba(10,13,20,0.85);
    --badge-v4-bg: rgba(0,102,255,0.15);
    --badge-v4-text: #5B9BFF;
    --badge-v6-bg: rgba(0,201,167,0.12);
    --badge-v6-text: #00C9A7;
    --grid-line: rgba(0,102,255,0.06);
  }
}

/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  transition: background 0.3s, color 0.3s;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { display: block; }

/* ===== BACKGROUND GRID ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

/* ===== LAYOUT ===== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ===== HEADER / NAV ===== */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}
nav {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  letter-spacing: -0.02em;
  text-decoration: none;
  flex-shrink: 0;
}
.logo:hover { text-decoration: none; }
.logo-icon { width: 32px; height: 32px; }
.logo-v4 { color: var(--accent); }
.logo-v6 { color: var(--accent-2); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 32px;
  list-style: none;
}
.nav-links a {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
  text-decoration: none;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--text);
  background: var(--bg-card-2);
}
.nav-links .badge-soon {
  font-size: 0.65rem;
  padding: 2px 5px;
  background: var(--bg-card-2);
  color: var(--text-light);
  border-radius: 4px;
  vertical-align: super;
  margin-left: 2px;
}

.nav-spacer { flex: 1; }

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 3px;
  gap: 2px;
}
.theme-btn {
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 28px;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  transition: background 0.2s, color 0.2s;
}
.theme-btn.active {
  background: var(--bg-card);
  color: var(--text);
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}
.theme-btn:hover { color: var(--text); }
.theme-btn svg { width: 15px; height: 15px; }

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--text);
}
.hamburger svg { width: 22px; height: 22px; }

/* ===== HERO ===== */
.hero {
  padding: 72px 0 48px;
  text-align: center;
  position: relative;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 5px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-muted);
  margin-bottom: 24px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.hero-badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--status-ok);
  animation: pulse 2.5s ease infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}
h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
  color: var(--text);
}
h1 .accent-v4 {
  color: var(--accent);
  background: linear-gradient(135deg, var(--accent), #3399FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
h1 .accent-v6 {
  color: var(--accent-2);
  background: linear-gradient(135deg, var(--accent-2), #00E5C8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 40px;
  font-weight: 300;
}

/* ===== IP CARDS ===== */
.ip-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
@media (max-width: 640px) {
  .ip-grid { grid-template-columns: 1fr; }
}
.ip-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px 28px 24px;
  box-shadow: var(--shadow);
  text-align: left;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.3s, transform 0.2s;
}
.ip-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.ip-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: 20px 20px 0 0;
}
.ip-card.v4::before { background: linear-gradient(90deg, var(--accent), #3399FF); }
.ip-card.v6::before { background: linear-gradient(90deg, var(--accent-2), #00E5C8); }

.ip-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.ip-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.ip-badge.v4 { background: var(--badge-v4-bg); color: var(--badge-v4-text); }
.ip-badge.v6 { background: var(--badge-v6-bg); color: var(--badge-v6-text); }

.ip-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-light);
}
.ip-status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.ip-status-dot.ok { background: var(--status-ok); }
.ip-status-dot.error { background: var(--status-error); }
.ip-status-dot.loading {
  background: var(--accent);
  animation: pulse 1.4s ease infinite;
}
.ip-label {
  font-size: 0.78rem;
  color: var(--text-light);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}
.ip-value {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  word-break: break-all;
  min-height: 2em;
  line-height: 1.3;
}
.ip-value.loading-text {
  color: var(--text-light);
  font-size: 0.9rem;
  font-weight: 400;
  animation: shimmer 1.5s ease infinite;
}
@keyframes shimmer {
  0%,100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.ip-value.unavailable { color: var(--status-error); font-size: 0.95rem; font-weight: 500; }
.ip-meta {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.ip-meta-item { font-size: 0.78rem; color: var(--text-light); }
.ip-meta-item strong { color: var(--text-muted); font-weight: 500; }

/* ===== DUAL STACK TEST ===== */
.test-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}
.test-section-title {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light);
  margin-bottom: 16px;
}
.test-rows { display: flex; flex-direction: column; gap: 10px; }
.test-row { display: flex; align-items: center; gap: 14px; }
.test-row-label { font-size: 0.85rem; color: var(--text-muted); width: 180px; flex-shrink: 0; }
.test-row-bar {
  flex: 1;
  height: 6px;
  background: var(--bg-card-2);
  border-radius: 100px;
  overflow: hidden;
}
.test-row-bar-fill {
  height: 100%;
  border-radius: 100px;
  transition: width 0.8s cubic-bezier(0.4,0,0.2,1);
  width: 0;
}
.test-row-bar-fill.v4 { background: linear-gradient(90deg, var(--accent), #3399FF); }
.test-row-bar-fill.v6 { background: linear-gradient(90deg, var(--accent-2), #00E5C8); }
.test-row-result {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  min-width: 80px;
  text-align: right;
}
.test-row-status { width: 20px; flex-shrink: 0; }

/* ===== LOCATION / SUMMARY ROW ===== */
.summary-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
@media (max-width: 768px) { .summary-row { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .summary-row { grid-template-columns: 1fr; } }
.summary-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px 20px 18px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.summary-icon {
  width: 36px; height: 36px;
  flex-shrink: 0;
  background: var(--bg-card-2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.summary-icon svg { width: 18px; height: 18px; }
.summary-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-light);
  margin-bottom: 3px;
}
.summary-value {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  font-family: var(--font-mono);
}
.summary-value.loading-text {
  color: var(--text-light);
  font-size: 0.8rem;
  font-weight: 400;
  animation: shimmer 1.5s ease infinite;
}

/* ===== BROWSER INFO ===== */
.browser-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow);
  margin-bottom: 48px;
}
.browser-section h2 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.browser-section p.section-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.browser-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}
.browser-item {
  background: var(--bg-card-2);
  border-radius: 12px;
  padding: 14px 16px;
}
.browser-item-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-light);
  margin-bottom: 4px;
}
.browser-item-value {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  word-break: break-all;
  line-height: 1.5;
}

/* ===== INFO SECTIONS ===== */
.info-section {
  padding: 64px 0;
  border-top: 1px solid var(--border);
}
.info-section + .info-section { border-top: 1px solid var(--border); }
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 10px;
}
.info-section h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 16px;
  line-height: 1.25;
}
.info-section p {
  color: var(--text-muted);
  max-width: 680px;
  margin-bottom: 16px;
  font-size: 0.975rem;
  line-height: 1.75;
}
.info-section p:last-child { margin-bottom: 0; }
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 768px) { .two-col { grid-template-columns: 1fr; gap: 32px; } }
.info-card-list { display: flex; flex-direction: column; gap: 12px; }
.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 22px;
  box-shadow: var(--shadow);
}
.info-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.info-card h3 .card-icon {
  width: 28px; height: 28px;
  background: var(--bg-card-2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.info-card h3 .card-icon svg { width: 14px; height: 14px; }
.info-card p { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0; }

/* ===== COMPARISON TABLE ===== */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin-top: 8px;
}
.compare-table th {
  text-align: left;
  padding: 10px 14px;
  background: var(--bg-card-2);
  color: var(--text-light);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.compare-table th:first-child { border-radius: 10px 0 0 10px; }
.compare-table th:last-child { border-radius: 0 10px 10px 0; }
.compare-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  vertical-align: top;
}
.compare-table tr:last-child td { border-bottom: none; }
.compare-table td:first-child { color: var(--text); font-weight: 500; font-size: 0.82rem; }
.compare-table .v4-cell { color: var(--badge-v4-text); font-family: var(--font-mono); font-size: 0.78rem; }
.compare-table .v6-cell { color: var(--badge-v6-text); font-family: var(--font-mono); font-size: 0.78rem; }

/* ===== FAQ ===== */
.faq-list { display: flex; flex-direction: column; gap: 8px; max-width: 720px; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}
.faq-question {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  text-align: left;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}
.faq-question:hover { color: var(--accent); }
.faq-chevron { width: 18px; height: 18px; flex-shrink: 0; transition: transform 0.3s; color: var(--text-light); }
.faq-item.open .faq-chevron { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s;
  padding: 0 22px;
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.75;
}
.faq-item.open .faq-answer { max-height: 300px; padding-bottom: 18px; }

/* ===== FOOTER ===== */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 0 32px;
  position: relative;
  z-index: 1;
}
.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.footer-brand .logo { margin-bottom: 8px; }
.footer-brand p { font-size: 0.8rem; color: var(--text-light); max-width: 260px; line-height: 1.6; }
.footer-links h4 {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light);
  margin-bottom: 12px;
}
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-links a { font-size: 0.85rem; color: var(--text-muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--text); text-decoration: none; }
.footer-links .coming-soon {
  font-size: 0.65rem;
  padding: 1px 5px;
  background: var(--bg-card-2);
  color: var(--text-light);
  border-radius: 4px;
  vertical-align: middle;
  margin-left: 4px;
}
.footer-bottom {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom p { font-size: 0.78rem; color: var(--text-light); }

/* ===== MOBILE NAV ===== */
.mobile-nav { display: none; }
@media (max-width: 768px) {
  .nav-links { display: none !important; }
  .hamburger { display: flex; }
  .mobile-nav {
    position: fixed;
    top: 64px;
    left: 0; right: 0;
    height: auto;
    overflow-y: auto;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    z-index: 99;
    padding: 16px 20px 24px;
    flex-direction: column;
    gap: 4px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  }
  .mobile-nav.open { display: flex; }
  .mobile-nav a {
    display: block;
    padding: 13px 16px;
    border-radius: 10px;
    color: var(--text-muted);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
  }
  .mobile-nav a:hover, .mobile-nav a:active {
    background: var(--bg-card-2);
    color: var(--text);
    text-decoration: none;
  }
}

/* ===== UTILITIES ===== */
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ===== SUBPAGE STYLES ===== */
.page-hero {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--border);
}
.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 12px;
}
.page-hero .hero-sub { margin-bottom: 0; }
.prose {
  max-width: 980px;
  margin: 0 auto;
  padding: 48px 24px 80px;
  position: relative;
  z-index: 1;
}
.prose h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin: 40px 0 12px;
  letter-spacing: -0.02em;
}
.prose h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin: 28px 0 8px;
}
.prose p {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: 0.975rem;
  line-height: 1.8;
}
.prose ul, .prose ol {
  color: var(--text-muted);
  margin: 0 0 16px 20px;
  font-size: 0.975rem;
  line-height: 1.8;
}
.prose li { margin-bottom: 6px; }
.prose a { color: var(--accent); }
.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-card-2);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--badge-v4-text);
}
.prose .callout {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 12px;
  padding: 18px 20px;
  margin: 24px 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.prose .callout.green { border-left-color: var(--accent-2); }
/* breadcrumb removed */