/* Nib site — single stylesheet. No build step, no framework, no external fonts.
   Two global themes on <html data-theme="dark|light">. Every color comes from
   a token below; components never hardcode a color. */

:root,
html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #08090b;
  --bg-2: #0f1115;
  --bg-3: #14171d;
  --line: #22262e;
  --line-soft: #1a1d23;
  --text: #f4f1ea;
  --muted: #8b909a;
  --muted-2: #7b8290;      /* lifted from #6b717c: 4.06:1 failed the 4.5:1 rule */
  --ember: #ff5c35;        /* solid fills, both themes */
  --ember-hover: #ff7048;
  --accent: #ff5c35;       /* links and text emphasis: theme-dependent */
  --on-ember: #0a0a0a;
  --mint: #6fe3c4;
  --amber: #ffb454;
  --on-mint: #06251c;      /* text on solid --mint fills */
  --on-amber: #2b1a00;     /* text on solid --amber fills */
  --err: #ff7a5c;
  --add-bg: rgba(111, 227, 196, 0.10);
  --add-tx: #6fe3c4;
  --del-bg: rgba(255, 92, 53, 0.10);
  --del-tx: #ff8b70;
  --header-bg: rgba(8, 9, 11, 0.82);
  --glow: rgba(255, 92, 53, 0.14);
  --shadow: rgba(0, 0, 0, 0.45);
  --focus-ring: rgba(255, 92, 53, 0.35);

  /* legacy aliases (older inline styles) */
  --ink: var(--bg);
  --ink-2: var(--bg-2);
  --ink-3: var(--bg-3);
  --paper: var(--text);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f1ea;
  --bg-2: #faf8f3;
  --bg-3: #ede9e0;
  --line: #d9d3c6;
  --line-soft: #e4dfd4;
  --text: #08090b;
  --muted: #5f6470;
  --muted-2: #666b75;
  --ember: #ff5c35;        /* solid fills stay #FF5C35 with dark text */
  --ember-hover: #ff7048;
  --accent: #c23a17;       /* darker ember for text on light ground; #d8431f only reached 3.93:1 */
  --on-ember: #0a0a0a;
  --mint: #17795f;
  --amber: #8a5a00;
  --on-mint: #ffffff;      /* light theme fills are darker, so text flips near-white */
  --on-amber: #ffffff;
  --err: #b2331a;
  --add-bg: rgba(23, 121, 95, 0.10);
  --add-tx: #17795f;
  --del-bg: rgba(216, 67, 31, 0.10);
  --del-tx: #b2331a;
  --header-bg: rgba(250, 248, 243, 0.85);
  --glow: rgba(216, 67, 31, 0.09);
  --shadow: rgba(40, 36, 28, 0.18);
  --focus-ring: rgba(216, 67, 31, 0.35);

  --ink: var(--bg);
  --ink-2: var(--bg-2);
  --ink-3: var(--bg-3);
  --paper: var(--text);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

/* classed elements set display, which would beat the UA [hidden] rule */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background 0.15s ease, color 0.15s ease;
}

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --max: 1080px;
  --radius: 10px;
}

::selection { background: var(--ember); color: var(--on-ember); }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }

h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.02em; line-height: 1.15; }
h1 { font-size: clamp(2.4rem, 5.2vw, 3.9rem); letter-spacing: -0.035em; }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: 1.1rem; }
p { margin: 0; }
code, pre, kbd { font-family: var(--font-mono); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 26px;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-mark { width: 24px; height: 24px; display: block; object-fit: contain; }
/* the header/footer ship the white mark; recolor it on the light ground */
html[data-theme="light"] img.brand-mark { filter: brightness(0); }
.brand span { font-size: 1.15rem; }

.nav {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-left: auto;
  font-size: 0.92rem;
  color: var(--muted);
}

.nav a { white-space: nowrap; }
.nav a:hover { color: var(--text); }
.nav a[aria-current="page"] { color: var(--text); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
  transition: color 0.15s, border-color 0.15s;
}

.theme-toggle:hover { color: var(--text); border-color: var(--muted-2); }
.theme-toggle:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.theme-toggle svg { width: 16px; height: 16px; }

html[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
html[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
html[data-theme="light"] .theme-toggle .icon-sun { display: none; }
html[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.signin-link { font-size: 0.92rem; color: var(--muted); white-space: nowrap; }
.signin-link:hover { color: var(--text); }

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.9rem;
  white-space: nowrap;
  transition: border-color 0.15s, background 0.15s;
}

.header-cta:hover { border-color: var(--ember); background: var(--glow); color: var(--text); }

.header-cta-mobile { display: none; }

/* ---------- hero ---------- */

.hero { padding: 88px 0 64px; position: relative; overflow: hidden; }

.hero::before {
  content: "";
  position: absolute;
  inset: -30% 40% auto -10%;
  height: 520px;
  background: radial-gradient(circle at 30% 30%, var(--glow), transparent 62%);
  pointer-events: none;
}

.hero .wrap { position: relative; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 26px;
}

.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--mint); }

.hero h1 { max-width: 17ch; }
.hero h1 em { font-style: normal; color: var(--accent); }

.hero .lede {
  margin-top: 22px;
  max-width: 54ch;
  color: var(--muted);
  font-size: 1.1rem;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: transform 0.12s, background 0.15s, border-color 0.15s, color 0.15s;
}

.btn:active { transform: translateY(1px); }

.btn-primary { background: var(--ember); color: var(--on-ember); font-weight: 600; }
.btn-primary:hover { background: var(--ember-hover); color: var(--on-ember); }

.btn-ghost { border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: var(--muted-2); color: var(--text); }

.btn[disabled], .btn.is-disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

.hero-meta {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.84rem;
  color: var(--muted-2);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }
.hero-meta svg { width: 14px; height: 14px; color: var(--mint); flex: none; }

/* ---------- app shot (desktop client mock) ---------- */

.app-shot {
  margin-top: 56px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg-2);
  overflow: hidden;
  box-shadow: 0 24px 60px var(--shadow);
  font-size: 0.82rem;
}

.app-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line-soft);
  background: var(--bg-3);
}

.app-titlebar i { width: 9px; height: 9px; border-radius: 50%; background: var(--line); display: block; }
.app-titlebar i:first-child { background: var(--ember); opacity: 0.55; }
.app-titlebar .title { margin-left: 8px; font-size: 0.76rem; color: var(--muted-2); font-family: var(--font-mono); }
.app-titlebar .plan-chip {
  margin-left: auto;
  padding: 2px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.03em;
}

.app-body { display: grid; grid-template-columns: 208px 1fr; min-height: 380px; }

.app-side {
  border-right: 1px solid var(--line-soft);
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--bg-2);
}

.app-side .side-label {
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted-2);
  padding: 6px 10px 4px;
}

.app-side .side-item {
  padding: 7px 10px;
  border-radius: 7px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-side .side-item.active { background: var(--bg-3); color: var(--text); border: 1px solid var(--line-soft); }
.app-side .side-item .dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--mint); margin-right: 8px; }
.app-side .side-spacer { flex: 1; }
.app-side .side-user {
  border-top: 1px solid var(--line-soft);
  padding: 12px 10px 4px;
  color: var(--muted-2);
  font-size: 0.74rem;
}

.app-main { padding: 20px 24px 0; display: flex; flex-direction: column; gap: 16px; overflow: hidden; }

.app-msg { max-width: 78%; border-radius: 10px; padding: 10px 14px; line-height: 1.55; }
.app-msg.user { align-self: flex-end; background: var(--bg-3); border: 1px solid var(--line-soft); color: var(--text); }
.app-msg.agent { align-self: flex-start; background: transparent; border: 1px solid var(--line-soft); color: var(--muted); padding: 12px 14px; }
.app-msg .file { font-family: var(--font-mono); font-size: 0.74rem; color: var(--muted-2); display: block; margin-bottom: 8px; }

.app-diff {
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.7;
  margin-top: 8px;
}
.app-diff .diff-head {
  padding: 6px 12px;
  border-bottom: 1px solid var(--line-soft);
  background: var(--bg-3);
  color: var(--muted-2);
  font-size: 0.7rem;
}
.app-diff .ln { display: block; padding: 0 12px; white-space: pre; }
.app-diff .ln.add { background: var(--add-bg); color: var(--add-tx); }
.app-diff .ln.del { background: var(--del-bg); color: var(--del-tx); }

.app-msg .status-ok { display: flex; align-items: center; gap: 8px; margin-top: 10px; color: var(--mint); font-size: 0.78rem; }

.app-input {
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--bg-3);
  padding: 11px 14px;
  color: var(--muted-2);
  display: flex;
  align-items: center;
  gap: 10px;
}
.app-input .send { margin-left: auto; color: var(--ember); font-size: 0.8rem; }

.app-statusbar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--line-soft);
  padding: 10px 24px;
  color: var(--muted-2);
  font-size: 0.72rem;
  background: var(--bg-2);
}
.app-statusbar .model { font-family: var(--font-mono); }

/* segmented meter: 24 cells, ember fill */
.meter { display: inline-flex; gap: 2px; }
.meter i { width: 5px; height: 12px; border-radius: 2px; background: var(--line); }
.meter i.on { background: var(--ember); }
.meter.mint i.on { background: var(--mint); }

/* ---------- model wall ---------- */

.model-wall-section { position: relative; }

.model-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.model-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-2);
  min-width: 200px;
  flex: 1 1 200px;
  max-width: 260px;
}

.model-chip .glyph {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--on-ember);
  background: var(--ember);
  flex: none;
}
.model-chip:nth-child(2) .glyph { background: var(--mint); color: var(--on-mint); }
.model-chip:nth-child(3) .glyph { background: var(--amber); color: var(--on-amber); }
.model-chip:nth-child(4) .glyph { background: var(--text); color: var(--bg); }

.model-chip .name { font-weight: 600; font-size: 0.95rem; line-height: 1.3; }
.model-chip .vendor { color: var(--muted-2); font-size: 0.78rem; line-height: 1.3; }

.model-wall-note {
  margin-top: 16px;
  color: var(--muted);
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
}
.model-wall-note strong { color: var(--text); font-weight: 500; }

/* ---------- sections ---------- */

section { padding: 78px 0; border-top: 1px solid var(--line-soft); }

.section-head { max-width: 660px; margin-bottom: 40px; }
.section-head .kicker {
  font-size: 0.78rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
  font-weight: 600;
}
.section-head p { margin-top: 14px; color: var(--muted); }

.grid { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-2);
}

.card h3 { margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 0.92rem; }
.card .icon { width: 30px; height: 30px; margin-bottom: 16px; color: var(--accent); }

.notice {
  border: 1px solid var(--line);
  border-left: 2px solid var(--amber);
  border-radius: 0 8px 8px 0;
  background: var(--bg-2);
  padding: 13px 16px;
  font-size: 0.88rem;
  color: var(--muted);
}

/* ---------- pricing ---------- */

.trial-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  margin-bottom: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-2);
  font-size: 0.9rem;
}
.trial-banner strong { color: var(--text); }
.trial-banner .btn { margin-left: auto; padding: 8px 14px; font-size: 0.85rem; }

.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; align-items: stretch; }

.plan {
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-2);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.plan.featured { border-color: var(--ember); background: linear-gradient(180deg, var(--glow), var(--bg-2) 44%); }

.plan .tag {
  align-self: flex-start;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--ember);
  color: var(--on-ember);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.plan .tag-empty {
  background: transparent;
  color: var(--muted-2);
  border: 1px solid var(--line);
  font-weight: 500;
}

.plan .name { font-size: 0.95rem; color: var(--muted); margin-bottom: 10px; }
.plan .price { display: flex; align-items: baseline; gap: 7px; }
.plan .price .now { font-size: 2.15rem; font-weight: 600; letter-spacing: -0.03em; }
.plan .price .per { color: var(--muted-2); font-size: 0.88rem; }

.plan .credits {
  margin: 18px 0;
  padding: 12px 14px;
  border-radius: 8px;
  background: var(--bg-3);
  border: 1px solid var(--line-soft);
}
.plan .credits b { font-size: 1.25rem; letter-spacing: -0.02em; }
.plan .credits span { display: block; color: var(--muted-2); font-size: 0.78rem; margin-top: 3px; }

.plan ul { list-style: none; margin: 0 0 22px; padding: 0; display: grid; gap: 9px; }
.plan li { font-size: 0.86rem; color: var(--muted); display: flex; gap: 9px; }
.plan li::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--mint); margin-top: 8px; flex: none; }

.plan .btn { margin-top: auto; justify-content: center; }

.plans-note { margin-top: 22px; color: var(--muted-2); font-size: 0.82rem; }
.plans-note a { color: var(--accent); }

/* ---------- usage explainer ---------- */

.usage-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }

.usage-example {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-2);
  overflow: hidden;
}
.usage-example header { padding: 14px 18px; border-bottom: 1px solid var(--line-soft); font-size: 0.8rem; color: var(--muted); }
.usage-example .row { display: flex; justify-content: space-between; gap: 16px; padding: 13px 18px; border-bottom: 1px solid var(--line-soft); font-size: 0.88rem; }
.usage-example .row:last-child { border-bottom: 0; }
.usage-example .row .k { color: var(--muted); }
.usage-example .row .v { font-family: var(--font-mono); font-size: 0.85rem; }
.usage-example .row.total { background: var(--bg-3); }
.usage-example .row.total .v { color: var(--accent); }

/* ---------- table ---------- */

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); }
table { width: 100%; border-collapse: collapse; font-size: 0.89rem; }
thead th {
  text-align: left;
  padding: 13px 16px;
  background: var(--bg-3);
  color: var(--muted);
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--line);
}
tbody td { padding: 13px 16px; border-bottom: 1px solid var(--line-soft); color: var(--muted); }
tbody tr:last-child td { border-bottom: 0; }
tbody td:first-child { color: var(--text); }

/* ---------- downloads ---------- */

.dl-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }

.dl-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-2);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.dl-os { display: flex; align-items: center; gap: 12px; }
.dl-os svg { width: 26px; height: 26px; color: var(--text); flex: none; }
.dl-os .os-name { font-weight: 600; font-size: 1.02rem; }
.dl-os .os-arch { color: var(--muted-2); font-size: 0.8rem; display: block; font-weight: 400; }

.dl-badge {
  margin-left: auto;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.dl-badge.ok { background: var(--add-bg); color: var(--mint); border: 1px solid var(--mint); }
.dl-badge.soon { background: transparent; color: var(--muted-2); border: 1px dashed var(--line); }

.dl-card .btn { justify-content: center; }

.dl-meta { display: grid; gap: 6px; font-family: var(--font-mono); font-size: 0.76rem; color: var(--muted-2); }
.dl-meta .row { display: flex; gap: 10px; align-items: baseline; }
.dl-meta .k { flex: none; width: 62px; color: var(--muted-2); text-transform: uppercase; font-size: 0.66rem; letter-spacing: 0.06em; font-family: var(--font-sans); }
.dl-meta .v { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.copy-sm {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  padding: 2px 7px;
  border-radius: 5px;
  flex: none;
}
.copy-sm:hover { color: var(--text); background: var(--bg-3); }

.sha-row { display: flex; align-items: center; gap: 8px; min-width: 0; }
.sha-row .v { flex: 1; min-width: 0; }

.dl-req { margin: 0; padding-left: 18px; color: var(--muted); font-size: 0.86rem; }
.dl-req li { margin: 4px 0; }

/* ---------- faq ---------- */

.faq { display: grid; gap: 0; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 0.98rem;
  font-weight: 500;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 1.2rem; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq .answer { margin-top: 12px; color: var(--muted); font-size: 0.92rem; max-width: 72ch; }
.faq .answer a { color: var(--accent); }

/* ---------- cta ---------- */

.cta {
  text-align: center;
  padding: 96px 0;
  border-top: 1px solid var(--line-soft);
}
.cta h2 { margin-bottom: 14px; }
.cta p { color: var(--muted); max-width: 46ch; margin: 0 auto 30px; }
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------- footer ---------- */

.site-footer { border-top: 1px solid var(--line-soft); padding: 44px 0 36px; }
.footer-grid { display: flex; flex-wrap: wrap; gap: 40px; justify-content: space-between; }
.footer-brand { max-width: 280px; }
.footer-brand p { color: var(--muted-2); font-size: 0.84rem; margin-top: 12px; }
.footer-cols { display: flex; gap: 56px; flex-wrap: wrap; }
.footer-col h4 { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted-2); margin-bottom: 12px; font-weight: 500; }
.footer-col a { display: block; color: var(--muted); font-size: 0.86rem; padding: 4px 0; }
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  margin-top: 40px;
  padding-top: 22px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  color: var(--muted-2);
  font-size: 0.8rem;
}

/* ---------- docs ---------- */

.doc { padding: 64px 0 96px; }
.doc-layout { display: grid; grid-template-columns: 200px 1fr; gap: 56px; align-items: start; }
.doc-nav { position: sticky; top: 88px; display: grid; gap: 4px; font-size: 0.88rem; }
.doc-nav a { color: var(--muted); padding: 6px 0; }
.doc-nav a:hover { color: var(--text); }
.doc-nav a.active { color: var(--text); }
.doc-nav .group { margin-top: 18px; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted-2); }
.doc-body { max-width: 720px; }
.doc-body h1 { font-size: 2.1rem; margin-bottom: 12px; }
.doc-body .sub { color: var(--muted); margin-bottom: 42px; }
.doc-body h2 { font-size: 1.35rem; margin: 44px 0 14px; padding-top: 8px; }
.doc-body h3 { margin: 28px 0 10px; }
.doc-body p { color: var(--muted); margin: 12px 0; }
.doc-body ul, .doc-body ol { color: var(--muted); padding-left: 20px; margin: 12px 0; }
.doc-body li { margin: 6px 0; }
.doc-body a { color: var(--accent); }
.doc-body pre {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px 18px;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.7;
  margin: 16px 0;
  color: var(--text);
}
.doc-body code { background: var(--bg-3); padding: 2px 6px; border-radius: 4px; font-size: 0.86em; color: var(--text); }
.doc-body pre code { background: none; padding: 0; }
.doc-body table { margin: 18px 0; }
.doc-body .note {
  border-left: 2px solid var(--accent);
  background: var(--bg-2);
  padding: 14px 18px;
  border-radius: 0 8px 8px 0;
  margin: 20px 0;
  font-size: 0.9rem;
  color: var(--muted);
}

/* ---------- legal ---------- */

.legal { padding: 64px 0 96px; }
.legal .wrap { max-width: 760px; }
.legal h1 { font-size: 2rem; margin-bottom: 8px; }
.legal .meta { color: var(--muted-2); font-size: 0.85rem; margin-bottom: 40px; }
.legal h2 { font-size: 1.15rem; margin: 36px 0 10px; }
.legal p, .legal li { color: var(--muted); font-size: 0.94rem; margin: 10px 0; }
.legal ul { padding-left: 20px; }
.legal strong { color: var(--text); }
.legal a { color: var(--accent); }

/* ---------- auth pages ---------- */

.auth {
  min-height: calc(100vh - 65px);
  display: grid;
  place-items: center;
  padding: 56px 0 72px;
}

.auth-card {
  width: 100%;
  max-width: 430px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg-2);
  padding: 34px 32px;
}

.auth-card h1 { font-size: 1.55rem; margin-bottom: 8px; }
.auth-card .auth-sub { color: var(--muted); font-size: 0.92rem; margin-bottom: 26px; }
.auth-card .auth-sub a, .auth-foot a { color: var(--accent); }
.auth-foot { margin-top: 20px; color: var(--muted); font-size: 0.88rem; text-align: center; }

.field { margin-bottom: 16px; }
.field label { display: block; font-size: 0.84rem; color: var(--muted); margin-bottom: 6px; }
.field .hint { color: var(--muted-2); font-size: 0.78rem; margin-top: 6px; }

.input {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  font: inherit;
  font-size: 0.95rem;
}

.input:focus { outline: none; border-color: var(--ember); box-shadow: 0 0 0 3px var(--focus-ring); }
.input::placeholder { color: var(--muted-2); }

.input-code {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  letter-spacing: 0.35em;
  text-align: center;
  text-transform: uppercase;
}

.form-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 0.86rem;
  margin: 4px 0 18px;
  color: var(--muted);
}
.form-row a { color: var(--accent); }
.form-row label { display: inline-flex; align-items: center; gap: 7px; cursor: pointer; }
.form-row input[type="checkbox"] { accent-color: var(--ember); width: 15px; height: 15px; }

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

.msg {
  display: none;
  padding: 11px 14px;
  border-radius: 8px;
  font-size: 0.88rem;
  margin-bottom: 16px;
  line-height: 1.5;
}
.msg.show { display: block; }
.msg-err { border: 1px solid var(--err); color: var(--err); background: var(--del-bg); }
.msg-ok { border: 1px solid var(--mint); color: var(--mint); background: var(--add-bg); }
.msg-info { border: 1px solid var(--line); color: var(--muted); background: var(--bg-3); }

.code-send { display: flex; gap: 10px; align-items: center; }
.code-send .input { flex: 1; }
.link-btn {
  border: 0;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font: inherit;
  font-size: 0.84rem;
  padding: 6px 8px;
  border-radius: 6px;
  white-space: nowrap;
}
.link-btn:hover { background: var(--bg-3); }
.link-btn[disabled] { color: var(--muted-2); cursor: not-allowed; }

/* ---------- device page ---------- */

.device-code {
  font-family: var(--font-mono);
  font-size: 1.9rem;
  letter-spacing: 0.18em;
  text-align: center;
  padding: 18px 12px;
  background: var(--bg-3);
  border: 1px solid var(--line);
  border-radius: 10px;
  margin-bottom: 20px;
  user-select: all;
}

.device-meta { color: var(--muted-2); font-size: 0.82rem; text-align: center; margin-top: 16px; }
.device-meta .req { color: var(--err); }

/* ---------- status page ---------- */

.status-row { display: flex; align-items: center; gap: 12px; padding: 16px 0; border-bottom: 1px solid var(--line-soft); font-size: 0.95rem; }
.status-row .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--mint); flex: none; }
.status-row .dot.warn { background: var(--amber); }
.status-row .dot.down { background: var(--err); }
.status-row .comp { flex: 1; }
.status-row .st { color: var(--mint); font-size: 0.86rem; }

/* ---------- responsive ---------- */

@media (max-width: 980px) {
  .plans { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dl-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .usage-grid { grid-template-columns: 1fr; gap: 28px; }
  .doc-layout { grid-template-columns: 1fr; gap: 28px; }
  .doc-nav { position: static; display: flex; flex-wrap: wrap; gap: 14px; }
  .doc-nav .group { display: none; }
  .app-body { grid-template-columns: 1fr; }
  .app-side { display: none; }
}

@media (max-width: 680px) {
  .nav { display: none; }
  .signin-link { display: none; }
  .header-actions { margin-left: auto; gap: 10px; }
  .header-cta-mobile { display: inline-flex; }
  .hero { padding: 56px 0 44px; }
  .plans { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .auth-card { padding: 26px 20px; }
  .trial-banner .btn { margin-left: 0; }
  .app-main { padding: 14px 14px 0; }
  .app-msg { max-width: 94%; }
}