:root {
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --violet: #8b5cf6;
  --violet-dim: #6d28d9;
  --green: #22c55e;
}

/* Dark theme (default) */
:root, [data-theme="dark"] {
  --bg-dark: #09090b;
  --bg-card: #18181b;
  --bg-elevated: #27272a;
  --text-primary: #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted: #52525b;
  --violet-glow: rgba(139, 92, 246, 0.1);
  --border: #27272a;
  --header-bg: rgba(9, 9, 11, 0.9);
  --code-bg: #09090b;
}

/* Light theme */
[data-theme="light"] {
  --bg-dark: #ffffff;
  --bg-card: #f4f4f5;
  --bg-elevated: #e4e4e7;
  --text-primary: #18181b;
  --text-secondary: #52525b;
  --text-muted: #a1a1aa;
  --violet-glow: rgba(139, 92, 246, 0.15);
  --border: #e4e4e7;
  --header-bg: rgba(255, 255, 255, 0.9);
  --code-bg: #18181b;
}

/* Light theme specific overrides */
[data-theme="light"] .app-sidebar {
  background: #fafafa;
}

[data-theme="light"] .code-block {
  background: var(--code-bg);
}

[data-theme="light"] .code-block pre {
  color: #a1a1aa;
}

[data-theme="light"] .btn-launch {
  color: #fafafa;
  background: #18181b;
}

[data-theme="light"] .btn-launch:hover {
  background: var(--violet);
}

[data-theme="light"] .chat-input {
  background: #fafafa;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-display);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  transition: background-color 0.2s, color 0.2s;
}

/* Utility */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navigation - minimal top bar */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 0;
  background: var(--header-bg);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-primary);
}

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

.logo-text {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.05em;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  transition: all 0.15s;
}

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

.btn-launch {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--bg-dark);
  background: var(--text-primary);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.15s;
}

.btn-launch:hover {
  background: var(--violet);
  color: white;
}

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
}

.theme-toggle:hover {
  border-color: var(--text-muted);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  stroke: var(--text-secondary);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.theme-toggle:hover svg {
  stroke: var(--text-primary);
}

.theme-icon { display: none; }
.theme-toggle[data-theme="light"] .icon-light { display: block; }
.theme-toggle[data-theme="dark"] .icon-dark { display: block; }
.theme-toggle[data-theme="system"] .icon-system { display: block; }
.theme-toggle:not([data-theme]) .icon-system { display: block; }

/* Hero - Split layout */
.hero {
  padding: 8rem 0 4rem;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  max-width: 480px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--violet);
  background: var(--violet-glow);
  padding: 0.375rem 0.75rem;
  border-radius: 4px;
  margin-bottom: 1.5rem;
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero h1 span {
  color: var(--violet);
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.875rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.15s;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--violet);
  color: white;
}

.btn-primary:hover {
  background: var(--violet-dim);
  transform: translateY(-1px);
}

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

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

/* Hero Screenshot */
.hero-screenshot {
  width: 100%;
  display: block;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* App Mockup Window */
.app-window {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.window-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.window-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-muted);
}

.window-dot.red { background: #ef4444; }
.window-dot.yellow { background: #eab308; }
.window-dot.green { background: #22c55e; }

.window-title {
  flex: 1;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.app-content {
  display: grid;
  grid-template-columns: 200px 1fr;
  height: 380px;
}

.app-sidebar {
  background: var(--bg-dark);
  border-right: 1px solid var(--border);
  padding: 1rem;
}

.sidebar-section {
  margin-bottom: 1.5rem;
}

.sidebar-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.sidebar-item.active {
  background: var(--violet-glow);
  color: var(--violet);
}

.sidebar-item::before {
  content: '#';
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.sidebar-item.active::before {
  color: var(--violet);
}

.app-chat {
  display: flex;
  flex-direction: column;
  padding: 1rem;
}

.chat-messages {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.message {
  display: flex;
  gap: 0.75rem;
  max-width: 85%;
}

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--violet-glow);
  border: 1px solid var(--violet);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--violet);
}

.message-body {
  flex: 1;
}

.message-header {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.message-name {
  font-size: 0.85rem;
  font-weight: 600;
}

.message-time {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
}

.message-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.chat-input {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-top: 1rem;
}

.chat-input-text {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Hero meta row: GitHub stars */
.hero-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.github-stars-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  border-radius: 4px;
  transition: opacity 0.15s;
}

.github-stars-link:hover {
  opacity: 0.8;
}

.github-stars-badge {
  display: block;
  height: 20px;
  width: auto;
}

/* Stats Row */
.stats {
  padding: 4rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.stat {
  text-align: center;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.stat-value span {
  color: var(--violet);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Why Nostrord */
.why {
  padding: 6rem 0;
  border-top: 1px solid var(--border);
}

.why-header {
  text-align: center;
  margin-bottom: 3rem;
}

.why-header h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.why-header p {
  color: var(--text-secondary);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.why-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.2s;
}

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

.why-icon {
  width: 48px;
  height: 48px;
  background: var(--violet-glow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.why-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--violet);
}

.why-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.why-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Bento Grid */
.bento {
  padding: 6rem 0;
}

.bento-header {
  text-align: center;
  margin-bottom: 3rem;
}

.bento-header h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.bento-header p {
  color: var(--text-secondary);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 1.5rem;
}

.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  min-width: 0;
  overflow: hidden;
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.2s;
}

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

.bento-card.wide {
  grid-column: span 2;
}

.bento-card.tall {
  grid-row: span 2;
}

.bento-icon {
  width: 40px;
  height: 40px;
  background: var(--violet-glow);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.bento-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--violet);
}

.bento-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.bento-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Code block in bento */
.code-block {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  margin-top: 1.5rem;
  overflow-x: auto;
  max-width: 100%;
}

.code-block pre {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
}

.code-key { color: var(--violet); }
.code-string { color: #22c55e; }
.code-number { color: #f97316; }

/* NIP Badges */
.nip-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.nip-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.375rem 0.75rem;
  border-radius: 6px;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.nip-badge.primary {
  background: var(--violet-glow);
  border-color: var(--violet-dim);
  color: var(--violet);
}

/* Platforms */
.platforms {
  padding: 6rem 0;
  border-top: 1px solid var(--border);
}

.platforms-header {
  text-align: center;
  margin-bottom: 3rem;
}

.platforms-header h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.platforms-header p {
  color: var(--text-secondary);
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.platform-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  transition: all 0.15s;
  text-decoration: none;
  color: inherit;
  display: block;
}

.platform-card:hover {
  border-color: var(--text-muted);
}

.platform-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  stroke: var(--text-secondary);
}

.platform-card h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

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

.platform-card.coming-soon {
  cursor: default;
}

.platform-card.coming-soon:hover {
  border-color: var(--border);
  transform: none;
}

.build-from-source {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--violet);
  text-decoration: none;
  margin-top: 0.4rem;
  transition: opacity 0.15s;
}

.build-from-source:hover {
  opacity: 0.75;
}

.coming-soon-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  margin-top: 0.5rem;
  letter-spacing: 0.05em;
}

.platform-card-live {
  border-color: var(--violet-dim);
}

.platform-card-live .platform-icon {
  stroke: var(--violet);
}

.platform-card-live:hover {
  border-color: var(--violet);
}

.live-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--green);
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  margin-top: 0.5rem;
  letter-spacing: 0.05em;
}

/* Built With */
.built-with {
  padding: 4rem 0;
  border-top: 1px solid var(--border);
}

.built-with-header {
  text-align: center;
  margin-bottom: 2rem;
}

.built-with-header h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.built-with-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.built-with-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.built-with-logo {
  width: 32px;
  height: 32px;
  margin-bottom: 0.5rem;
}

.built-with-name {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
}

.built-with-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.compatible-relays {
  text-align: center;
}

.compatible-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.relay-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
}

.relay-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.375rem 0.75rem;
  border-radius: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

/* FAQ */
.faq {
  padding: 6rem 0;
  border-top: 1px solid var(--border);
}

.faq-header {
  text-align: center;
  margin-bottom: 3rem;
}

.faq-header h2 {
  font-size: 2rem;
  font-weight: 700;
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  transition: color 0.15s;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--text-muted);
  transition: transform 0.2s;
}

.faq-item[open] summary::after {
  content: '-';
  color: var(--violet);
}

.faq-item summary:hover {
  color: var(--violet);
}

.faq-item p {
  padding: 0 0 1.25rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Community */
.community {
  padding: 6rem 0;
  border-top: 1px solid var(--border);
}

.community-header {
  text-align: center;
  margin-bottom: 3rem;
}

.community-header h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.community-header p {
  color: var(--text-secondary);
}

.community-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.community-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: all 0.2s;
}

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

.community-card-highlight {
  border-color: var(--violet-dim);
  background: linear-gradient(135deg, var(--violet-glow) 0%, var(--bg-card) 60%);
}

.community-icon {
  width: 40px;
  height: 40px;
  background: var(--violet-glow);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.community-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--violet);
}

.community-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.community-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}

.community-action {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--violet);
  margin-top: 1rem;
}

.community-card:hover .community-action {
  text-decoration: underline;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* CTA contribute note */
.cta-contribute {
  margin-top: 2.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.cta-contribute a {
  color: var(--violet);
  text-decoration: none;
}

.cta-contribute a:hover {
  text-decoration: underline;
}

/* CTA Section */
.cta {
  padding: 6rem 0;
}

.cta-box {
  background: linear-gradient(135deg, var(--violet-glow) 0%, transparent 50%);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 4rem;
  text-align: center;
}

.cta-box h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-box p:not(.cta-contribute) {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto 2rem;
}

/* Footer */
footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

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

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Responsive */

/* Prevent horizontal scroll from any overflowing child */
html {
  overflow-x: hidden;
}

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-content {
    max-width: 100%;
    text-align: center;
  }

  .hero-buttons {
    justify-content: center;
    flex-wrap: wrap;
  }

  .hero-meta {
    justify-content: center;
  }

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

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

  .bento-card.wide {
    grid-column: span 1;
  }

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

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

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

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

/* ============================================================
   Blog Styles
   ============================================================ */

/* Blog Hero — top section of a post page */
.blog-hero {
  padding: 8rem 0 3rem;
  border-bottom: 1px solid var(--border);
}

.blog-hero-inner {
  max-width: 720px;
  margin: 0 auto;
}

/* Blog meta — date, author, tags row */
.blog-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.blog-meta-sep {
  opacity: 0.4;
}

/* Blog tag pill */
.blog-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  background: var(--violet-glow);
  border: 1px solid var(--violet-dim);
  color: var(--violet);
  text-decoration: none;
}

.blog-tag.secondary {
  background: var(--bg-card);
  border-color: var(--border);
  color: var(--text-muted);
}

/* Blog content area — article body */
.blog-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 0 4rem;
}

.blog-content p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.blog-content h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 3rem;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.blog-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.blog-content ul,
.blog-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
}

.blog-content li {
  margin-bottom: 0.5rem;
}

.blog-content li + li {
  margin-top: 0.25rem;
}

.blog-content a {
  color: var(--violet);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s;
}

.blog-content a:hover {
  color: var(--text-primary);
}

.blog-content a.btn-primary {
  color: white;
  text-decoration: none;
}

.blog-content a.btn-primary:hover {
  color: white;
}

.blog-content strong {
  color: var(--text-primary);
  font-weight: 600;
}

.blog-content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  color: var(--violet);
}

/* Callout box — highlighted inline CTA or note */
.blog-content .callout {
  border-left: 3px solid var(--violet);
  background: var(--bg-card);
  border-radius: 0 8px 8px 0;
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
}

.blog-content .callout p {
  margin-bottom: 0;
  font-size: 1rem;
}

.blog-content .callout p:last-child {
  margin-bottom: 0;
}

/* Blog listing page */
.blog-section {
  padding: 7rem 0 5rem;
}

.blog-section-header {
  max-width: 720px;
  margin: 0 auto 3rem;
}

.blog-section-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.blog-section-header h1 span {
  color: var(--violet);
}

.blog-section-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Blog card — post in the listing */
.blog-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.2s;
  text-decoration: none;
  color: inherit;
  display: block;
}

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

.blog-card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.blog-card h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.blog-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.blog-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.blog-card-read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--violet);
  font-weight: 500;
  transition: gap 0.15s;
}

.blog-card:hover .blog-card-read-more {
  gap: 0.65rem;
}

/* Comments section */
.comments-section {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 0 4rem;
  border-top: 1px solid var(--border);
}

.comments-section h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.comments-section .comments-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.comment-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.comments-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.comment-item {
  display: flex;
  gap: 0.875rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
}

.comment-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--violet-glow);
  border: 1px solid var(--violet-dim);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--violet);
}

.comment-body {
  flex: 1;
  min-width: 0;
}

.comment-header {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
  flex-wrap: wrap;
}

.comment-author {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
}

.comment-time {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.comment-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  word-break: break-word;
}

.comment-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-decoration: none;
  margin-top: 0.4rem;
  transition: color 0.15s;
}

.comment-link:hover {
  color: var(--violet);
}

.comments-loading {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
  padding: 2rem 0;
}

.comments-empty {
  background: var(--bg-card);
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive blog */
@media (max-width: 768px) {
  .blog-hero {
    padding: 6rem 0 2.5rem;
  }

  .blog-hero-inner,
  .blog-content,
  .blog-section-header,
  .blog-list,
  .comments-section {
    max-width: 100%;
  }

  .blog-content h2 {
    font-size: 1.35rem;
  }

  .blog-section-header h1 {
    font-size: 1.75rem;
  }

  .blog-card {
    padding: 1.5rem;
  }
}

/* ============================================================
   End Blog Styles
   ============================================================ */

/* Mobile menu */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: background 0.15s;
}

.menu-toggle:hover {
  background: var(--bg-card);
}

.menu-toggle svg {
  width: 20px;
  height: 20px;
  stroke: var(--text-primary);
}

.menu-toggle .icon-close {
  display: none;
}

.menu-toggle.active .icon-open {
  display: none;
}

.menu-toggle.active .icon-close {
  display: block;
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99;
  background: var(--bg-dark);
  padding: 5rem 1.5rem 2rem;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav.active {
  display: flex;
}

.mobile-nav .nav-link {
  display: block;
  font-size: 1.1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.mobile-nav .btn-launch {
  display: inline-block;
  text-align: center;
  margin-top: 1rem;
}

@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-link {
    display: none;
  }

  .header-inner .btn-launch {
    display: none;
  }

  .theme-toggle {
    width: 32px;
    height: 32px;
  }

  .theme-toggle svg {
    width: 16px;
    height: 16px;
  }

  .hero {
    padding: 6rem 0 3rem;
    min-height: auto;
  }

  .app-content {
    grid-template-columns: 1fr;
  }

  .app-sidebar {
    display: none;
  }

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

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

  .bento-card.wide,
  .bento-card.tall {
    grid-column: span 1;
    grid-row: span 1;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }

  .stat-value {
    font-size: 2rem;
  }

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

  .built-with-grid {
    grid-template-columns: 1fr 1fr;
  }

  .cta-box {
    padding: 2.5rem 1.5rem;
  }

  .cta-box h2 {
    font-size: 1.75rem;
  }

  .hero-buttons {
    flex-wrap: wrap;
    justify-content: center;
  }

  .btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
  }

  .relay-badge {
    font-size: 0.65rem;
    padding: 0.3rem 0.5rem;
    word-break: break-all;
  }

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

  .community-card {
    padding: 1.5rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
  }
}

/* Small phones */
@media (max-width: 480px) {
  .container {
    padding: 0 0.75rem;
  }

  .hero {
    padding: 5rem 0 2rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-desc {
    font-size: 1rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

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

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }

  .stat-value {
    font-size: 1.75rem;
  }

  .stat-label {
    font-size: 0.8rem;
  }

  .why {
    padding: 4rem 0;
  }

  .why-header h2 {
    font-size: 1.5rem;
  }

  .why-card {
    padding: 1.5rem;
  }

  .bento {
    padding: 4rem 0;
  }

  .bento-card {
    padding: 1.5rem;
  }

  .nip-badges {
    gap: 0.375rem;
  }

  .nip-badge {
    font-size: 0.65rem;
    padding: 0.25rem 0.5rem;
  }

  .platform-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .platform-card {
    padding: 1.5rem;
  }

  .built-with-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .built-with-item {
    padding: 1rem;
  }

  .built-with-name {
    font-size: 0.75rem;
  }

  .relay-list {
    gap: 0.375rem;
  }

  .relay-badge {
    font-size: 0.6rem;
    padding: 0.25rem 0.4rem;
  }

  .cta {
    padding: 4rem 0;
  }

  .cta-box {
    padding: 2rem 1rem;
    border-radius: 16px;
  }

  .cta-box h2 {
    font-size: 1.5rem;
  }

  .cta-box p:not(.cta-contribute) {
    font-size: 1rem;
  }

  .faq {
    padding: 4rem 0;
  }

  .faq-header h2 {
    font-size: 1.5rem;
  }

  .faq-item summary {
    font-size: 0.9rem;
  }

  .faq-item p {
    font-size: 0.85rem;
  }

  .platforms {
    padding: 4rem 0;
  }

  .platforms-header h2 {
    font-size: 1.5rem;
  }

  .bento-header h2 {
    font-size: 1.5rem;
  }

  .community {
    padding: 4rem 0;
  }

  .community-header h2 {
    font-size: 1.5rem;
  }
}