@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg: #111217;
  --bg-alt: #1b1d25;
  --ink: #f4f5f8;
  --muted: #b7bbc8;
  --accent: #5865f2;
  --accent-ink: #c8ccff;
  --lime: #c6f135;
  --code-bg: #0b0c10;
  --code-fg: #f1f2f7;
  --border: #343744;
  --radius: 14px;
}

:root[data-theme="light"] {
  --bg: #ffffff;
  --bg-alt: #f5f4f0;
  --ink: #15151a;
  --muted: #63636d;
  --accent-ink: #1f2560;
  --code-bg: #1e1f24;
  --code-fg: #e8e8ee;
  --border: #e6e4de;
}

img[src$="logo-light.png"] { content: url("assets/logo-dark.png"); }
.notice-banner { background: #3c3107; border-bottom-color: #715b12; color: #fff0ae; }
.editor-bar { background: #17181f; }
.eyebrow, .ref-cat { background: #292b42; }
.btn-secondary { border-color: var(--ink); }
#ref-search { background: var(--bg-alt); color: var(--ink); }

:root[data-theme="light"] img[src$="logo-light.png"] { content: url("assets/logo-light.png"); }
:root[data-theme="light"] .notice-banner { background: #fff3cd; border-bottom-color: #f0dca0; color: #6b5511; }
:root[data-theme="light"] .editor-bar { background: #26272e; }
:root[data-theme="light"] .eyebrow, :root[data-theme="light"] .ref-cat { background: #eceafd; }

.theme-toggle {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-alt);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 7px 12px;
}
.theme-toggle:hover { border-color: var(--accent); }

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

h1, h2, h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.1;
  margin: 0;
}

a { color: inherit; text-decoration: none; }

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- nav ---------- */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 22px;
}
.brand img { height: 34px; width: auto; display: block; }
.nav-links {
  display: flex;
  gap: 28px;
  font-weight: 500;
  font-size: 15px;
}
.nav-links a { border-bottom: 2px solid transparent; padding-bottom: 3px; }
.nav-links a:hover { border-bottom-color: var(--accent); }

.notice-banner {
  background: #fff3cd;
  border-bottom: 1px solid #f0dca0;
  color: #6b5511;
  font-size: 14px;
  font-weight: 500;
  text-align: center;
  padding: 10px 20px;
}

.download-box {
  margin-top: 30px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-alt);
}
.download-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}
.docs-muted-inline {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--muted);
}

/* ---------- hero ---------- */
.hero {
  padding: 64px 0 40px;
  position: relative;
}
.hero-inner {
  display: flex;
  align-items: center;
  gap: 56px;
}
.hero-text { flex: 1.15; }
.hero-logo {
  flex: 0.85;
  display: flex;
  justify-content: center;
  position: relative;
}
.hero-logo img {
  width: 100%;
  max-width: 340px;
  filter: drop-shadow(0 18px 30px rgba(21,21,26,0.10));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--accent-ink);
  background: #eceafd;
  border-radius: 100px;
  padding: 6px 14px;
  margin-bottom: 22px;
}
.eyebrow::before { content: "●"; color: var(--accent); font-size: 10px; }

h1.headline {
  font-size: clamp(38px, 5vw, 58px);
  letter-spacing: -0.02em;
}
.headline .underline-wrap { position: relative; display: inline-block; }
.headline .underline-wrap svg {
  position: absolute;
  left: -2%;
  bottom: -14px;
  width: 104%;
  height: 18px;
}

.subhead {
  margin-top: 22px;
  font-size: 19px;
  color: var(--muted);
  max-width: 46ch;
}

.cta-row {
  margin-top: 34px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  font-size: 15.5px;
  padding: 13px 22px;
  border-radius: 10px;
  border: 2px solid var(--ink);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--lime);
  color: #15151a;
  box-shadow: 4px 4px 0 var(--accent);
}
.btn-primary:hover { box-shadow: 6px 6px 0 var(--accent); }
.btn-secondary {
  background: transparent;
  color: var(--ink);
}
.btn-secondary:hover { background: var(--bg-alt); }

/* ---------- code showcase ---------- */
.showcase { padding: 30px 0 90px; }
.editor {
  background: var(--code-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(21,21,26,0.35);
}
.editor-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 16px;
  background: #26272e;
}
.editor-bar span {
  width: 11px; height: 11px; border-radius: 50%;
  background: #4b4c56;
}
.editor-bar span:nth-child(1) { background: #ef5a52; }
.editor-bar span:nth-child(2) { background: #f4bd3d; }
.editor-bar span:nth-child(3) { background: #61c454; }
.editor-filename {
  margin-left: 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
  color: #9a9aa5;
}
.editor pre {
  margin: 0;
  padding: 26px 28px 30px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  line-height: 1.7;
  overflow-x: auto;
}
.tok-keyword { color: #c586c0; }
.tok-builtin { color: #4fc1ff; }
.tok-dotted  { color: #9cdcfe; }
.tok-string  { color: #ce9178; }
.tok-comment { color: #6a9955; font-style: italic; }
.tok-number  { color: #b5cea8; }
.tok-tag     { color: #f0a868; }

/* ---------- features ---------- */
.features { padding: 20px 0 100px; }
.features-head { max-width: 60ch; margin-bottom: 44px; }
.features-head h2 { font-size: clamp(28px, 3.4vw, 36px); }
.features-head p { color: var(--muted); margin-top: 12px; font-size: 17px; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.feature-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  background: var(--bg-alt);
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.feature-card.visible { opacity: 1; transform: translateY(0); }
.feature-card .num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 14px;
}
.feature-card h3 { font-size: 19px; margin-bottom: 10px; }
.feature-card p { color: var(--muted); font-size: 15px; margin: 0; }

/* ---------- cta band ---------- */
.cta-band {
  background: #252733;
  color: var(--ink);
  border-radius: 20px;
  margin: 0 0 100px;
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  right: -60px; top: -60px;
  width: 220px; height: 220px;
  background: var(--lime);
  border-radius: 50%;
  opacity: 0.15;
}
.cta-band h2 { font-size: clamp(24px, 3vw, 32px); max-width: 20ch; }
.cta-band .btn-primary { box-shadow: 4px 4px 0 var(--accent); }

:root[data-theme="light"] .btn-primary {
  background: var(--ink);
  color: #fff;
  box-shadow: 4px 4px 0 var(--lime);
}
:root[data-theme="light"] .btn-primary:hover { box-shadow: 6px 6px 0 var(--lime); }
:root[data-theme="light"] .cta-band { background: var(--ink); color: #fff; }
:root[data-theme="light"] .cta-band .btn-primary { box-shadow: 4px 4px 0 var(--lime); }

/* ---------- footer ---------- */
footer {
  border-top: 1px solid var(--border);
  padding: 36px 0 48px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-inner .brand { font-size: 16px; }
.footer-inner .brand img { height: 24px; }
.footer-links {
  display: flex;
  gap: 24px;
  font-size: 14.5px;
  color: var(--muted);
}
.footer-links a:hover { color: var(--ink); }
.footer-note {
  margin-top: 18px;
  font-size: 13px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
}

@media (max-width: 860px) {
  .hero-inner { flex-direction: column-reverse; }
  .hero-logo img { max-width: 220px; }
  .feature-grid { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  nav { flex-wrap: wrap; gap: 12px; row-gap: 10px; }
  .nav-links { gap: 16px; font-size: 14px; flex-wrap: wrap; row-gap: 8px; }
  .wrap { padding: 0 20px; }
  .hero { padding-top: 40px; }
  .cta-row { flex-direction: column; align-items: stretch; }
  .cta-row .btn { justify-content: center; }
  .cta-band { padding: 36px 28px; }
}

.warn-modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.55);
  display: none;
  align-items: center; justify-content: center;
  z-index: 200;
}
.warn-modal-overlay.active { display: flex; }
.warn-modal {
  background: var(--bg-alt);
  border-radius: 14px;
  padding: 28px;
  max-width: 420px;
  width: 90vw;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.4);
  border: 1px solid var(--border);
}
.warn-modal h3 { font-size: 19px; margin-bottom: 12px; color: #b34700; }
.warn-modal p { font-size: 14.5px; color: var(--muted); margin-bottom: 20px; }
.warn-modal-actions { display: flex; gap: 10px; justify-content: flex-end; }

:root[data-theme="light"] .warn-modal h3 { color: #b34700; }