/* Landing page: dark hero */
.landing { background: var(--hero-bg); }
.landing .nav {
  background: var(--hero-bg);
  border-bottom: 1px solid var(--hero-border);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.landing .nav-logo { color: var(--hero-text); }
.landing .nav-link { color: var(--hero-muted); }
.landing .nav-link:hover { color: var(--hero-text); }

/* Hero */
.hero {
  background: var(--hero-bg);
  background-image: radial-gradient(ellipse 80% 60% at 50% 100%, rgba(74,85,162,0.12) 0%, transparent 70%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.hero-center {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px var(--space-lg) var(--space-2xl);
  text-align: center;
}
.hero-title {
  font-size: 72px;
  font-weight: 700;
  line-height: 1.05;
  color: var(--hero-text);
  margin-bottom: var(--space-lg);
  max-width: 700px;
  letter-spacing: -0.035em;
}
.hero-sub {
  font-size: 20px;
  color: var(--hero-muted);
  line-height: 1.5;
  margin-bottom: 40px;
  max-width: 520px;
}
.hero-cta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.btn-hero-primary {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  padding: 12px 28px;
  border-radius: var(--radius);
  border: none;
  background: var(--hero-text);
  color: var(--hero-bg);
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.15s ease-out;
}
.btn-hero-primary:hover { opacity: 0.9; text-decoration: none; }
.btn-hero-primary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(74,85,162,0.4);
}

/* Preview window */
.hero-preview-section {
  padding: 0 var(--space-xl) 80px;
  display: flex;
  justify-content: center;
}
.hero-preview-window {
  max-width: 720px;
  width: 100%;
  border: 1px solid var(--hero-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--hero-surface);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.03),
    0 8px 40px rgba(0,0,0,0.3),
    0 0 120px rgba(74,85,162,0.08);
}
.hero-preview-bar {
  padding: 10px var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  border-bottom: 1px solid var(--hero-border);
  background: rgba(255,255,255,0.02);
}
.hero-preview-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--hero-border);
}
.hero-preview-url {
  font-family: var(--font-code);
  font-size: 12px;
  color: var(--hero-muted);
  margin-left: var(--space-sm);
  background: rgba(255,255,255,0.04);
  padding: 3px 12px;
  border-radius: var(--radius-sm);
  flex: 1;
}
.hero-preview-content { padding: var(--space-xl); }
.hero-preview-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--hero-text);
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}
.hero-preview-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: 20px;
  font-size: 12px;
  color: var(--hero-muted);
}
.source-tag-dark {
  font-family: var(--font-code);
  font-size: 11px;
  background: rgba(255,255,255,0.06);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--hero-border);
  color: var(--hero-muted);
}
.hero-badge-public {
  font-family: var(--font-code);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 20px;
  background: rgba(63,185,80,0.12);
  border: 1px solid rgba(63,185,80,0.3);
  color: var(--success);
}
.hero-preview-body {
  font-size: 14px;
  color: var(--hero-muted);
  line-height: 1.6;
}
.hero-preview-body p { margin-bottom: 12px; }
.hero-preview-body pre {
  background: var(--hero-bg);
  border: 1px solid var(--hero-border);
  padding: var(--space-md) 20px;
  border-radius: var(--radius-lg);
  font-family: var(--font-code);
  font-size: 13px;
  line-height: 1.6;
  color: var(--code-text);
  overflow-x: auto;
}
.hero-preview-body pre code { color: inherit; background: none; padding: 0; border: none; }
.kw { color: #FF7B72; }
.fn { color: #D2A8FF; }
.str { color: #A5D6FF; }

/* Taglines */
.hero-taglines {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--space-lg) 80px;
  text-align: center;
}
.hero-tagline {
  flex: 1;
  font-size: 15px;
  color: var(--hero-muted);
}
.hero-tagline strong {
  color: var(--hero-text);
  font-weight: 600;
  display: block;
  margin-bottom: var(--space-xs);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-title { font-size: 60px; }
}
@media (max-width: 768px) {
  .hero-center { padding: 72px var(--space-md) var(--space-xl); }
  .hero-title { font-size: 48px; }
  .hero-sub { font-size: 18px; }
  .hero-preview-section { padding: 0 var(--space-md) 60px; }
  .hero-preview-content { padding: var(--space-lg); }
  .hero-preview-title { font-size: 22px; }
  .hero-taglines { flex-direction: column; gap: var(--space-lg); padding-bottom: 60px; }
}
@media (max-width: 375px) {
  .hero-title { font-size: 36px; }
  .hero-sub { font-size: 16px; max-width: 300px; }
  .hero-preview-body pre { font-size: 11px; padding: 12px; }
}