:root {
  --bg: #06060a;
  --card: #10101a;
  --border: #22222f;
  --border-red: rgba(255, 39, 64, .28);
  --red: #ff2740;
  --red-dark: #8f0f1e;
  --red-glow: rgba(255, 39, 64, .35);
  --text: #ececf2;
  --muted: #8b8c9e;
  --green: #2ecc71;
  --orange: #f5a623;
  --code-bg: #0b0b12;
  --sidebar-w: 264px;
  --radius: 12px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  line-height: 1.7;
}

/* ---------- header ---------- */
.topbar {
  position: sticky;
  top: 12px;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 10px;
  width: calc(100% - 44px);
  max-width: 860px;
  margin: 12px auto 0;
  padding: 7px 16px;
  background: rgba(16, 16, 26, .55);
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  border: 1px solid var(--border-red);
  border-radius: 18px;
  box-shadow: 0 10px 34px rgba(0, 0, 0, .5), 0 0 22px var(--red-glow);
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text); }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.brand b { font-size: 16px; letter-spacing: 2px; }
.brand b span { color: var(--red); }
.ver {
  font-size: 11px;
  color: var(--red);
  border: 1px solid var(--border-red);
  border-radius: 20px;
  padding: 0 8px;
  white-space: nowrap;
}
.topbar .spacer { flex: 1; }
.topbar a.gh {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  border: 1px solid var(--border);
  padding: 4px 11px;
  border-radius: 8px;
}
.topbar a.gh:hover { color: var(--text); border-color: var(--red); }
#nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  font-size: 16px;
  padding: 3px 10px;
  cursor: pointer;
}

/* ---------- layout ---------- */
.layout { display: flex; }
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  position: fixed;
  left: 0;
  top: 80px;
  height: calc(100vh - 94px);
  overflow-y: auto;
  padding: 22px 14px 40px 22px;
  border-right: 1px solid var(--border);
  background: var(--bg);
}
.sidebar input {
  width: 100%;
  background: var(--code-bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 14px;
  font-size: 14px;
}
.sidebar input:focus { outline: none; border-color: var(--red); }
.nav-group { font-size: 12px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--muted); margin: 16px 6px 6px; }
.sidebar a {
  display: block;
  color: var(--muted);
  text-decoration: none;
  font-size: 14.5px;
  padding: 7px 12px;
  border-radius: 8px;
  border-left: 2px solid transparent;
}
.sidebar a:hover { color: var(--text); background: var(--card); }
.sidebar a.active { color: var(--red); background: var(--card); border-left-color: var(--red); }

.content { flex: 1; min-width: 0; max-width: 1000px; margin-left: var(--sidebar-w); padding: 34px 40px 80px; }
.content h1 { font-size: 32px; margin: 0 0 6px; letter-spacing: .5px; }
.content h1 .z { color: var(--red); }
.content h2 { font-size: 22px; margin: 38px 0 10px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.content h2::before { content: "▸ "; color: var(--red); }
.content h3 { font-size: 17px; margin: 24px 0 8px; color: var(--text); }
.subtitle { color: var(--muted); margin: 0 0 20px; font-size: 16px; }
.content p, .content li { color: #cfcfda; font-size: 15px; }
.content a { color: var(--red); }
.content ul, .content ol { padding-left: 22px; }
.content li { margin: 5px 0; }

/* ---------- cards / callouts ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 20px 0; }
.card {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  text-decoration: none;
}
.card:hover { border-color: var(--red); box-shadow: 0 0 18px var(--red-glow); }
.card b { display: block; color: var(--text); font-size: 16px; margin-bottom: 4px; }
.card span { color: var(--muted); font-size: 13.5px; }
.callout {
  border-radius: var(--radius);
  padding: 14px 18px;
  margin: 18px 0;
  font-size: 14.5px;
  border: 1px solid var(--border);
  background: var(--card);
}
.callout.warn { border-color: var(--orange); }
.callout.warn::before { content: "⚠ "; }
.callout.info { border-color: var(--border-red); }
.callout.info::before { content: "ⓘ "; color: var(--red); }
.callout.ok { border-color: rgba(46, 204, 113, .4); }
.callout.ok::before { content: "✓ "; color: var(--green); }

/* ---------- code / tables ---------- */
pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  overflow-x: auto;
  position: relative;
  font-size: 13.5px;
}
code { font-family: Consolas, "Cascadia Code", monospace; }
p code, li code, td code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1px 7px;
  font-size: 13px;
  color: #ffb3bb;
}
.copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 6px;
  font-size: 12px;
  padding: 3px 10px;
  cursor: pointer;
}
.copy-btn:hover { color: var(--text); border-color: var(--red); }
table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border); }
th { color: var(--red); font-weight: 600; text-transform: uppercase; font-size: 12px; letter-spacing: 1px; }
tr:hover td { background: var(--card); }
.badge {
  display: inline-block;
  font-size: 12px;
  border-radius: 20px;
  padding: 1px 10px;
  border: 1px solid var(--border);
  color: var(--muted);
  margin: 2px 4px 2px 0;
}
.badge.get { color: var(--green); border-color: rgba(46, 204, 113, .4); }
.badge.post { color: var(--orange); border-color: rgba(245, 166, 35, .4); }
.badge.put { color: #5aa9ff; border-color: rgba(90, 169, 255, .4); }
.badge.del { color: var(--red); border-color: var(--border-red); }

.hero {
  text-align: center;
  padding: 50px 20px 30px;
}
.hero img { width: 96px; height: 96px; border-radius: 20px; box-shadow: 0 0 40px var(--red-glow); }
.hero h1 { font-size: 44px; letter-spacing: 10px; margin: 18px 0 6px; }
.hero h1 span { color: var(--red); }
.hero p { color: var(--muted); font-size: 17px; max-width: 640px; margin: 0 auto; }
.cta { display: flex; gap: 12px; justify-content: center; margin: 26px 0 10px; flex-wrap: wrap; }
.btn {
  text-decoration: none;
  padding: 11px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
}
.btn.primary { background: var(--red); color: #fff !important; box-shadow: 0 0 22px var(--red-glow); }
.btn.primary:hover { background: #ff4056; }
.btn.ghost { border: 1px solid var(--border); color: var(--text) !important; }
.btn.ghost:hover { border-color: var(--red); }
.stats { display: flex; gap: 26px; justify-content: center; margin: 26px 0 6px; flex-wrap: wrap; }
.stats div { text-align: center; }
.stats b { display: block; font-size: 26px; color: var(--red); }
.stats span { font-size: 13px; color: var(--muted); }

footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
  padding: 22px;
}
footer a { color: var(--red); text-decoration: none; }

/* ---------- landing ---------- */
.landing { max-width: 1080px; margin: 0 auto; padding: 0 24px 70px; }
.hero-xl { text-align: center; padding: 64px 16px 34px; }
.hero-xl img { width: 110px; height: 110px; border-radius: 22px; box-shadow: 0 0 46px var(--red-glow); }
.hero-xl h1 { font-size: 52px; letter-spacing: 12px; margin: 20px 0 8px; }
.hero-xl h1 span { color: var(--red); }
.hero-xl .tagline { color: var(--muted); font-size: 18px; margin: 0 0 6px; }
.oneline { max-width: 640px; margin: 22px auto 0; text-align: left; }
.band { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 26px 0; margin: 10px 0 0; }
.proto-row { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 18px; }
.proto-row .badge { font-size: 13px; padding: 4px 14px; color: var(--text); border-color: var(--border-red); }
.wrap { padding: 44px 8px 0; }
.wrap h2 { text-align: center; font-size: 26px; margin: 0 0 24px; }
.wrap h2::before { content: ""; }
.feat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; }
.feat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.feat:hover { border-color: var(--red); }
.feat b { font-size: 16px; }
.feat b::before { content: "▸ "; color: var(--red); }
.feat p { color: var(--muted); font-size: 14px; margin: 6px 0 0; }
.shots { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; }
.shots figure { margin: 0; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.shots img { width: 100%; display: block; }
.shots figcaption { padding: 10px 16px; color: var(--muted); font-size: 13.5px; border-top: 1px solid var(--border); }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-bottom: 30px; }
.step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}
.step b {
  display: inline-block;
  width: 38px; height: 38px; line-height: 38px;
  border-radius: 50%;
  background: var(--red);
  color: #fff;
  font-size: 18px;
  margin-bottom: 10px;
  box-shadow: 0 0 18px var(--red-glow);
}
.step p { color: var(--muted); font-size: 14px; margin: 0; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  #nav-toggle { display: block; }
  .hero-xl h1 { font-size: 34px; letter-spacing: 7px; }
  .sidebar {
    display: none;
    top: 80px;
    left: 0;
    background: var(--bg);
    z-index: 40;
    height: calc(100vh - 94px);
    box-shadow: 4px 0 24px rgba(0,0,0,.6);
  }
  .sidebar.open { display: block; }
  .content { padding: 24px 18px 60px; margin-left: 0; max-width: none; }
  .hero h1 { font-size: 32px; letter-spacing: 6px; }
}

/* ---------- search palette (Ctrl+K) ---------- */
.sp-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--code-bg);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 8px;
  padding: 4px 10px;
  font-size: 12.5px;
  cursor: pointer;
  font-family: inherit;
}
.sp-trigger:hover { color: var(--text); border-color: var(--red); }
.sp-trigger kbd {
  font-family: inherit;
  font-size: 11px;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0 6px;
  color: var(--muted);
}
.sp-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(3, 3, 6, .72);
  backdrop-filter: blur(4px);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 12vh 18px 18px;
  opacity: 0;
  transition: opacity .18s ease;
}
.sp-overlay.show { opacity: 1; }
.sp-overlay[hidden] { display: none; }
.sp-modal {
  width: min(620px, 100%);
  max-height: 66vh;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border-red);
  border-radius: 14px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .65), 0 0 34px var(--red-glow);
  overflow: hidden;
  transform: translateY(-14px) scale(.98);
  transition: transform .22s cubic-bezier(.2, .9, .3, 1.2);
}
.sp-overlay.show .sp-modal { transform: none; }
.sp-input-row { display: flex; align-items: center; gap: 10px; padding: 14px 16px; border-bottom: 1px solid var(--border); }
.sp-input-row svg { flex-shrink: 0; }
.sp-input-row input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 16px;
  font-family: inherit;
}
.sp-results { overflow-y: auto; padding: 8px; }
.sp-item {
  display: block;
  padding: 10px 12px;
  border-radius: 9px;
  cursor: pointer;
  text-decoration: none;
}
.sp-item.sel, .sp-item:hover { background: rgba(255, 39, 64, .1); }
.sp-item .sp-sec { color: var(--text); font-size: 14.5px; }
.sp-item .sp-page { color: var(--red); font-size: 12px; text-transform: uppercase; letter-spacing: 1px; }
.sp-item .sp-snip { color: var(--muted); font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sp-item mark { background: rgba(255, 39, 64, .32); color: #fff; border-radius: 3px; padding: 0 1px; }
.sp-empty { color: var(--muted); text-align: center; padding: 26px; font-size: 14px; }
.sp-foot {
  display: flex;
  gap: 16px;
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
}
.sp-foot kbd { font-family: inherit; border: 1px solid var(--border); border-radius: 5px; padding: 0 6px; margin-right: 4px; }

/* ---------- scroll animations ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .55s ease, transform .55s cubic-bezier(.2, .7, .3, 1); }
.reveal.in { opacity: 1; transform: none; }
.hero-xl img { animation: drop-in .7s cubic-bezier(.2, .9, .3, 1.25) both; }
.hero-xl h1 { animation: rise-in .6s .1s ease both; }
.hero-xl .tagline { animation: rise-in .6s .2s ease both; }
.hero-xl .cta { animation: rise-in .6s .3s ease both; }
.hero-xl .oneline { animation: rise-in .6s .4s ease both; }
@keyframes drop-in { from { opacity: 0; transform: translateY(-26px) scale(.9); } to { opacity: 1; transform: none; } }
@keyframes rise-in { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.card, .feat, .step { transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
.card:hover, .feat:hover { transform: translateY(-3px); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- responsive ---------- */
body { overflow-x: clip; }
table { display: block; width: 100%; overflow-x: auto; }
.sp-foot { flex-wrap: wrap; gap: 8px 16px; }

@media (max-width: 560px) {
  .topbar { gap: 8px; padding: 6px 12px; border-radius: 14px; }
  .brand img { width: 24px; height: 24px; }
  .brand b { font-size: 14px; letter-spacing: 1px; }
  .ver { display: none; }
  .topbar a.gh { font-size: 12px; padding: 3px 8px; }
  .sp-trigger { padding: 4px 8px; }
  .sp-trigger span, .sp-trigger kbd { display: none; }
  .content h1 { font-size: 25px; }
  .content h2 { font-size: 19px; }
  table { font-size: 13px; }
  th, td { padding: 8px 10px; }
  .hero-xl { padding: 44px 8px 24px; }
  .hero-xl h1 { letter-spacing: 5px; }
  .hero-xl .tagline { font-size: 15.5px; }
  .hero-xl .tagline br { display: none; }
  .btn { padding: 10px 20px; font-size: 14px; }
  .sp-modal { max-height: 78vh; }
  .sp-overlay { padding: 8vh 12px 12px; }
}