:root {
  --bg: #0f0f0f;
  --bg-deep: #0a0a0a;
  --bg-bar: #0d0d0d;
  --bg-card: #131313;
  --bg-chip: #131320;
  --bg-code: #1a1a1a;
  --border: #1e1e1e;
  --border-soft: #1a1a1a;
  --border-chip: #2a2a40;
  --border-chip-hover: #4a4a70;
  --text: #e8e8e8;
  --text-strong: #fff;
  --text-mute: #ccc;
  --text-dim: #888;
  --text-faint: #6a6a85;
  --accent: #8b8bff;
  --accent-bright: #b9b9ff;
  --good: #2ea44f;
  --bad-bg: #3a1717;
  --bad-border: #5a2424;
  --bad-text: #ffb4b4;
  --max: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  scrollbar-width: auto;
  scrollbar-color: var(--text-faint) var(--bg-code);
}

*::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}
*::-webkit-scrollbar-track {
  background: var(--bg-code);
}
*::-webkit-scrollbar-thumb {
  background: var(--text-faint);
  border-radius: 6px;
  border: 1px solid var(--bg-code);
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  color: var(--accent-bright);
}
.link {
  text-decoration: underline;
  text-decoration-color: rgba(139, 139, 255, 0.4);
  text-underline-offset: 2px;
}
.link:hover {
  text-decoration-color: var(--accent-bright);
}

code {
  font-family: var(--mono);
  background: var(--bg-code);
  padding: 0.05rem 0.35rem;
  border-radius: 3px;
  font-size: 0.85em;
}
pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.85rem 1rem;
  overflow-x: auto;
  margin: 0.75rem 0;
  font-size: 0.82rem;
  line-height: 1.55;
}
pre code {
  background: transparent;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
  color: var(--text);
}
.c {
  color: #6a8a6a;
}

/* Top bar — matches the GUI TopBar.svelte */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg-bar);
  border-bottom: 1px solid var(--border);
  height: 48px;
  display: flex;
  align-items: center;
  backdrop-filter: blur(6px);
}
.topbar-inner {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.brand {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text);
}
.topnav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 1.1rem;
  font-size: 0.82rem;
}
.topnav a {
  color: var(--text-mute);
}
.topnav a:hover {
  color: var(--text-strong);
}
.topnav .gh {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--bg-chip);
  border: 1px solid var(--border-chip);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
}
.topnav .gh:hover {
  border-color: var(--border-chip-hover);
}

@media (max-width: 640px) {
  .topnav a:not(.gh) {
    display: none;
  }
}

main {
  display: block;
}

section .inner,
.hero-inner,
.foot-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--border);
}
section h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  color: var(--text-strong);
  letter-spacing: -0.01em;
}
.section-lede {
  color: var(--text-mute);
  margin-bottom: 1.5rem;
  max-width: 60ch;
}
.section-foot {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-top: 1rem;
  max-width: 60ch;
}

/* Hero */
.hero {
  padding: 5.5rem 0 5rem;
  background:
    radial-gradient(ellipse at 70% -10%, rgba(139, 139, 255, 0.12), transparent 60%),
    radial-gradient(ellipse at 10% 110%, rgba(139, 139, 255, 0.06), transparent 50%),
    var(--bg-deep);
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1.1;
  font-weight: 600;
  color: var(--text-strong);
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}
.hero .lede {
  font-size: 1.05rem;
  color: var(--text-mute);
  max-width: 62ch;
  margin-bottom: 1.75rem;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 120ms ease, border-color 120ms ease, color 120ms ease;
}
.btn.primary {
  background: var(--accent);
  color: #0a0a0a;
  border-color: var(--accent);
}
.btn.primary:hover {
  background: var(--accent-bright);
  border-color: var(--accent-bright);
  color: #0a0a0a;
}
.btn.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-chip);
}
.btn.ghost:hover {
  border-color: var(--border-chip-hover);
  color: var(--text-strong);
}
.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}
.badge {
  font-size: 0.7rem;
  padding: 0.2rem 0.55rem;
  background: var(--bg-chip);
  border: 1px solid var(--border-chip);
  border-radius: 999px;
  color: var(--text-mute);
  font-family: var(--mono);
  letter-spacing: 0.01em;
}
.badge.good {
  color: #b6e3c0;
  border-color: rgba(46, 164, 79, 0.4);
  background: rgba(46, 164, 79, 0.08);
}

/* Personas */
.persona-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}
@media (max-width: 760px) {
  .persona-grid {
    grid-template-columns: 1fr;
  }
}
.persona {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.1rem;
}
.persona-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(139, 139, 255, 0.08);
  border: 1px solid rgba(139, 139, 255, 0.25);
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  margin-bottom: 0.6rem;
  letter-spacing: 0.08em;
}
.persona-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 0.35rem;
}
.persona-name code {
  background: transparent;
  padding: 0;
  font-size: 1em;
}
.persona-desc {
  color: var(--text-mute);
  font-size: 0.88rem;
  margin-bottom: 0.75rem;
}
.persona-path {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
}
.persona-foot {
  color: var(--text-dim);
  font-size: 0.88rem;
  margin-top: 1rem;
  max-width: 70ch;
}

/* Features */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}
@media (max-width: 760px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}
.feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.1rem 1.2rem;
}
.feature h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 0.5rem;
}
.feature p {
  font-size: 0.88rem;
  color: var(--text-mute);
  line-height: 1.6;
}

/* Get started cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.2rem 1.3rem;
  margin-bottom: 1rem;
}
.card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 0.5rem;
}
.card p {
  font-size: 0.9rem;
  color: var(--text-mute);
  margin-bottom: 0.5rem;
}

/* Platforms */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.6rem;
}
.platform {
  background: var(--bg-chip);
  border: 1px solid var(--border-chip);
  border-radius: 6px;
  padding: 0.65rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.platform code {
  background: transparent;
  padding: 0;
  color: var(--text-strong);
  font-size: 0.82rem;
}
.platform .sub {
  font-size: 0.7rem;
  color: var(--text-dim);
}

/* Docs */
.doc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.7rem;
}
.doc {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.9rem 1rem;
  color: var(--text);
  transition: border-color 120ms ease, background 120ms ease;
}
.doc:hover {
  border-color: var(--border-chip-hover);
  background: #181828;
  color: var(--text);
}
.doc-name {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: 0.3rem;
  letter-spacing: 0.02em;
}
.doc:hover .doc-name {
  color: var(--accent-bright);
}
.doc-desc {
  font-size: 0.82rem;
  color: var(--text-mute);
  line-height: 1.5;
}

/* Footer */
.foot {
  background: var(--bg-bar);
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
}
.foot-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.foot-brand {
  font-size: 0.85rem;
  color: var(--text-mute);
  font-weight: 600;
}
.foot-links {
  display: flex;
  gap: 1rem;
  font-size: 0.82rem;
}
.foot-links a {
  color: var(--text-mute);
}
.foot-links a:hover {
  color: var(--text-strong);
}

/* Last section seam */
section:last-of-type {
  border-bottom: none;
}