/* CAST site (casttown.dev). Palette taken from the app icon: night ink, cream, lamp amber. */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url("fonts/inter-latin-var.woff2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/jetbrains-mono-latin-var.woff2") format("woff2");
}

:root {
  --ink: #14110d;
  --ink-2: #1b1712;
  --ink-3: #241f18;
  --ink-4: #2e281f;
  --line: rgba(244, 241, 236, 0.12);
  --line-2: rgba(244, 241, 236, 0.2);
  --cream: #f4f1ec;
  --muted: #bfb7aa;
  --lamp: #f5c26b;
  --lamp-2: #ffd88f;
  --lamp-glow: rgba(245, 194, 107, 0.35);
  --claude: #d97757;
  --gpt: #10a37f;
  --deepseek: #4d6bfe;
  --gemini: #8e75f0;
  --sky-a: rgba(245, 160, 80, 0.32);
  --sky-b: rgba(217, 119, 87, 0.18);
  --radius: 14px;
  --wrap: 1260px;
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --header-h: 64px;
}
html[data-tod="day"] { --sky-a: rgba(140, 200, 255, 0.22); --sky-b: rgba(16, 163, 127, 0.14); }
html[data-tod="night"] { --sky-a: rgba(77, 107, 254, 0.22); --sky-b: rgba(142, 117, 240, 0.14); }

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--lamp); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { color: var(--lamp-2); }
:focus-visible { outline: 3px solid var(--lamp); outline-offset: 3px; border-radius: 4px; }
code, kbd, pre { font-family: var(--mono); }
code { font-size: 0.86em; background: rgba(244, 241, 236, 0.08); border: 1px solid var(--line); border-radius: 6px; padding: 0.08em 0.38em; overflow-wrap: anywhere; }
kbd {
  display: inline-block; min-width: 1.7em; padding: 0.1em 0.45em; text-align: center;
  font-size: 0.8em; color: var(--cream); background: var(--ink-4);
  border: 1px solid var(--line-2); border-bottom-width: 3px; border-radius: 7px; line-height: 1.5;
}
strong { font-weight: 650; }
h1, h2, h3 { line-height: 1.1; margin: 0; letter-spacing: -0.02em; }
p { margin: 0 0 1em; }
.small { font-size: 0.875rem; color: var(--muted); }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

.skip {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  background: var(--lamp); color: var(--ink); padding: 10px 16px; border-radius: 10px; font-weight: 700;
}
.skip:focus { top: 12px; }

/* ---------- lamp motif ---------- */
.lamp {
  display: inline-block; width: 9px; height: 9px; border-radius: 50%;
  background: var(--lamp); box-shadow: 0 0 0 4px rgba(245, 194, 107, 0.15), 0 0 18px 4px var(--lamp-glow);
  vertical-align: 0.05em;
}

/* ---------- header ---------- */
.top {
  position: sticky; top: 0; z-index: 50;
  background: rgba(20, 17, 13, 0.82);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.top__inner {
  max-width: var(--wrap); margin: 0 auto; padding: 0 24px; height: var(--header-h);
  display: flex; align-items: center; gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--cream); text-decoration: none; margin-right: auto; }
.brand img { border-radius: 8px; }
.brand__name { font-weight: 750; font-size: 1.2rem; letter-spacing: -0.02em; }
.nav ul { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: 4px; }
.nav a:not(.btn) {
  display: block; padding: 8px 12px; border-radius: 8px;
  color: var(--muted); text-decoration: none; font-size: 0.95rem; font-weight: 500;
}
.nav a:not(.btn):hover { color: var(--cream); background: rgba(244, 241, 236, 0.06); }
.nav a[aria-current="true"] { color: var(--cream); }
.nav__gh { margin-left: 8px; }

.menu-btn {
  display: none; align-items: center; gap: 10px; min-height: 44px; padding: 0 14px;
  background: transparent; color: var(--cream); border: 1px solid var(--line-2); border-radius: 10px;
  font: inherit; font-weight: 600; font-size: 0.95rem; cursor: pointer;
}
.menu-btn__bars, .menu-btn__bars::before, .menu-btn__bars::after {
  display: block; width: 16px; height: 2px; background: currentColor; border-radius: 2px; position: relative;
}
.menu-btn__bars::before, .menu-btn__bars::after { content: ""; position: absolute; left: 0; }
.menu-btn__bars::before { top: -5px; }
.menu-btn__bars::after { top: 5px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 22px; border-radius: 12px;
  font-weight: 650; font-size: 1rem; text-decoration: none; letter-spacing: -0.005em;
  border: 1px solid transparent; transition: background-color .2s, border-color .2s, box-shadow .2s, color .2s;
}
.btn--sm { min-height: 38px; padding: 0 14px; font-size: 0.9rem; border-radius: 10px; }
.btn--lamp { background: var(--lamp); color: #1d1608; box-shadow: 0 10px 30px -10px var(--lamp-glow); }
.btn--lamp:hover { background: var(--lamp-2); color: #1d1608; box-shadow: 0 12px 40px -8px var(--lamp-glow); }
.btn--ghost { color: var(--cream); border-color: var(--line-2); background: rgba(244, 241, 236, 0.03); }
.btn--ghost:hover { color: var(--cream); border-color: rgba(244, 241, 236, 0.4); background: rgba(244, 241, 236, 0.07); }

/* ---------- hero ---------- */
.hero { position: relative; padding: 56px 0 72px; isolation: isolate; }
.hero__sky {
  position: absolute; inset: -64px 0 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(60% 55% at 78% 30%, var(--sky-a), transparent 70%),
    radial-gradient(45% 50% at 10% 0%, var(--sky-b), transparent 70%),
    linear-gradient(180deg, transparent 60%, var(--ink));
  transition: background 0.8s ease;
}
.hero__grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.3fr); gap: 52px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: 22px;
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted);
}
.hero h1 { font-size: clamp(2.3rem, 3.9vw, 3.7rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.03; text-wrap: balance; }
.hero h1 em { font-style: normal; color: var(--lamp); text-shadow: 0 0 32px rgba(245, 194, 107, 0.35); }
.lead { font-size: 1.15rem; color: var(--muted); margin-top: 22px; max-width: 36em; }
.hero .lead { color: #d3ccc0; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.facts {
  list-style: none; margin: 30px 0 0; padding: 18px 0 0; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: 0.875rem; color: var(--muted);
}
.facts li { position: relative; }
.facts li span { opacity: 0.85; }
.facts code { font-size: 0.85em; }

/* ---------- windows (screenshot frames) ---------- */
.window { margin: 0; position: relative; }
.window__frame {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line-2); background: var(--ink-3);
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, 0.9), 0 0 0 6px rgba(244, 241, 236, 0.03);
}
.window__frame::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}
.window::before {
  content: ""; position: absolute; left: 12%; right: 12%; bottom: -26px; height: 60px; z-index: -1;
  background: radial-gradient(50% 50% at 50% 50%, var(--lamp-glow), transparent 70%);
  filter: blur(16px); opacity: 0.6;
}
.window figcaption { margin-top: 12px; font-size: 0.875rem; color: var(--muted); }
.window--wide { margin: 8px 0 40px; }

.hero__shot img { transition: opacity 0.35s ease; }
.hero__shot img.is-fading { opacity: 0.25; }

.tod { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-top: 16px; }
.tod__label { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.tod__group { display: inline-flex; padding: 4px; gap: 2px; border-radius: 12px; background: rgba(244, 241, 236, 0.05); border: 1px solid var(--line); }
.tod__group button {
  min-height: 36px; padding: 0 12px; border: 0; border-radius: 9px; cursor: pointer;
  background: transparent; color: var(--muted); font: inherit; font-size: 0.875rem; font-weight: 550;
}
.tod__group button:hover { color: var(--cream); }
.tod__group button[aria-pressed="true"] { background: var(--cream); color: var(--ink); }
.tod__note { font-size: 0.8rem; color: var(--muted); }
.no-js .tod { display: none; }

/* ---------- sections ---------- */
.section { padding: 80px 0; position: relative; border-top: 1px solid var(--line); }
.section--warm { background: linear-gradient(180deg, var(--ink-2), var(--ink) 85%); }
.section__head { max-width: 760px; margin-bottom: 40px; }
.kicker {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: 14px;
  font-family: var(--mono); font-size: 0.78rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--lamp);
}
.kicker::before { content: ""; width: 22px; height: 1px; background: currentColor; opacity: 0.7; }
.section h2 { font-size: clamp(1.9rem, 3.4vw, 2.9rem); font-weight: 780; letter-spacing: -0.03em; text-wrap: balance; }
.section__lede { margin-top: 16px; font-size: 1.12rem; color: var(--muted); max-width: 44em; }
.h3 { font-size: clamp(1.35rem, 2vw, 1.65rem); font-weight: 720; letter-spacing: -0.02em; margin-bottom: 16px; }
.split__text p, .phones__text p, .board__text p, .mac p, .card p { color: #d6cfc3; }

/* ---------- legend ---------- */
.legend { margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.legend__row {
  position: relative; padding: 20px 22px 22px; border-radius: var(--radius);
  background: var(--ink-2); border: 1px solid var(--line);
}
.legend__row--wide { grid-column: span 2; background: linear-gradient(135deg, rgba(245, 194, 107, 0.09), var(--ink-2) 60%); border-color: rgba(245, 194, 107, 0.28); }
.legend__row--wide dd { font-size: 1.2rem; font-weight: 550; }
.legend dt {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px;
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.02em; color: var(--lamp); margin-bottom: 10px;
}
.legend dt::before { content: "▸"; color: var(--lamp); opacity: 0.8; }
.dt-note { color: var(--muted); font-size: 0.72rem; }
.legend dd { margin: 0; font-size: 1.02rem; line-height: 1.5; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 5px 12px 5px 9px; border-radius: 999px;
  background: rgba(244, 241, 236, 0.06); border: 1px solid var(--line); font-size: 0.9rem; font-weight: 600;
}
.chip::before { content: ""; width: 12px; height: 12px; border-radius: 50%; background: var(--c); box-shadow: 0 0 10px var(--c); }
.chip i { font-style: normal; font-weight: 400; color: var(--muted); font-size: 0.82rem; }
.chip--claude { --c: var(--claude); }
.chip--gpt { --c: var(--gpt); }
.chip--deepseek { --c: var(--deepseek); }
.chip--gemini { --c: var(--gemini); }
.chip--more { --c: rgba(244, 241, 236, 0.45); color: var(--cream); text-decoration: none; }
.chip--more::before { box-shadow: none; }
.chip--more:hover { color: var(--cream); border-color: var(--lamp); }
.hero__chips { margin-top: 22px; }

/* ---------- vendor colours (flow steps, name tags) ---------- */
.vendor--claude { --c: var(--claude); }
.vendor--gpt { --c: var(--gpt); }
.vendor--deepseek { --c: var(--deepseek); }
.vendor--gemini { --c: var(--gemini); }

/* ---------- spotlight: every model ---------- */
.section--spotlight { background: radial-gradient(60% 45% at 50% 0%, rgba(245, 194, 107, 0.09), transparent 70%), var(--ink); }
.section__head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section__head--center .section__lede { margin-left: auto; margin-right: auto; }
.wall { max-width: 1060px; margin: 0 auto; display: grid; gap: 28px; }
.wall__label { margin: 0 0 12px; text-align: center; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.wall__tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.tagname {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px 7px 12px; border-radius: 999px;
  background: rgba(244, 241, 236, 0.045); border: 1px solid var(--line); font-size: 0.95rem; font-weight: 600; line-height: 1.3;
}
.tagname::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--c, rgba(244, 241, 236, 0.4)); flex: none; }
.tagname[class*="vendor--"] { border-color: color-mix(in srgb, var(--c) 45%, transparent); }
.tagname[class*="vendor--"]::before { box-shadow: 0 0 10px var(--c); }
.tagname small { font-size: 0.8em; font-weight: 400; color: var(--muted); }
.wall__note { max-width: 46em; margin: 28px auto 0; text-align: center; font-size: 0.95rem; color: var(--muted); }

/* ---------- workflow strip ---------- */
.flow { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 44px; }
.flow__step {
  position: relative; display: grid; gap: 4px; padding: 20px 22px; border-radius: var(--radius);
  background: var(--ink-3); border: 1px solid var(--line-2); border-left: 3px solid var(--c);
}
.flow__step:not(:last-child)::after {
  content: "→"; position: absolute; right: -34px; top: 50%; transform: translateY(-50%);
  font-size: 1.5rem; line-height: 1; color: var(--lamp);
}
.flow__n { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.flow__step strong { font-size: 1.2rem; font-weight: 720; }
.flow__who { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 0.95rem; }
.flow__who::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--c); box-shadow: 0 0 10px var(--c); }
.flow__what { font-size: 0.92rem; color: var(--muted); }
.flow__loop { margin: 18px 0 40px; font-size: 0.95rem; color: var(--muted); max-width: 52em; }
.flow__loop span { color: var(--lamp); font-size: 1.15em; margin-right: 6px; }
.cols3--rows { margin-top: 8px; }

/* ---------- stations ---------- */
.stations { list-style: none; margin: 0 0 64px; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.stations li {
  padding: 18px; border-radius: var(--radius); background: rgba(244, 241, 236, 0.035); border: 1px solid var(--line);
}
.stations svg { width: 34px; height: 34px; fill: none; stroke: var(--cream); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 12px; }
.stations h3 { font-size: 1rem; font-weight: 680; letter-spacing: -0.01em; margin-bottom: 4px; }
.stations p { margin: 0; font-size: 0.9rem; color: var(--muted); }
.stations__wait { border-color: rgba(245, 194, 107, 0.45) !important; background: linear-gradient(180deg, rgba(245, 194, 107, 0.12), rgba(245, 194, 107, 0.03)) !important; }
.stations__wait svg { stroke: var(--lamp); filter: drop-shadow(0 0 8px var(--lamp-glow)); }

/* ---------- splits ---------- */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 56px; align-items: center; margin-top: 64px; }
.split--flip .split__text { order: 2; }
.section__head + .split { margin-top: 0; }
.ticks { list-style: none; margin: 0 0 1em; padding: 0; display: grid; gap: 10px; }
.ticks li { position: relative; padding-left: 26px; color: #d6cfc3; }
.ticks li::before {
  content: ""; position: absolute; left: 4px; top: 0.62em; width: 8px; height: 8px; border-radius: 50%;
  border: 2px solid var(--muted);
}
.ticks--lamp li::before { border-color: var(--lamp); background: var(--lamp); box-shadow: 0 0 10px var(--lamp-glow); }
.stack { display: grid; gap: 22px; }
.note { font-size: 0.95rem; color: var(--muted); padding: 16px 18px; border-left: 2px solid var(--lamp); background: rgba(245, 194, 107, 0.05); border-radius: 0 10px 10px 0; margin: 0; }

/* ---------- cards ---------- */
.cols3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.card { padding: 24px; border-radius: var(--radius); background: var(--ink-2); border: 1px solid var(--line); }
.card h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 10px; letter-spacing: -0.01em; }
.card p { margin: 0; font-size: 0.97rem; }

/* ---------- modes ---------- */
.modes {
  margin: 32px 0 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.modes > div { display: grid; align-content: start; gap: 8px; padding: 18px 20px; background: var(--ink-2); }
.modes dt { font-weight: 680; }
.modes dd { margin: 0; color: #d6cfc3; font-size: 0.93rem; }
.tag {
  display: inline-block; margin-top: 4px; padding: 1px 7px; border-radius: 6px; font-family: var(--mono); font-size: 0.68rem; font-weight: 500;
  color: var(--lamp); border: 1px solid rgba(245, 194, 107, 0.4); vertical-align: 0.15em;
}

/* ---------- board / keys ---------- */
.section--board { background: radial-gradient(70% 90% at 90% 50%, rgba(77, 107, 254, 0.08), transparent 70%), var(--ink); }
.board { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.board h2 { margin-bottom: 18px; }
.keys { border-radius: var(--radius); border: 1px solid var(--line-2); background: var(--ink-2); padding: 8px; box-shadow: 0 40px 80px -40px rgba(0, 0, 0, 0.9); }
.keys__row { display: grid; grid-template-columns: 10.5em minmax(0, 1fr); gap: 16px; align-items: center; padding: 12px 14px; border-radius: 10px; }
.keys__row + .keys__row { border-top: 1px dashed var(--line); border-radius: 0; }
.keys__row > span:last-child { color: #d6cfc3; font-size: 0.95rem; }
.keys__k { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; color: var(--muted); font-size: 0.85rem; }
.or { font-size: 0.75rem; margin: 0 4px; }

/* ---------- phones / mac ---------- */
.phones { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.55fr) minmax(0, 0.55fr); gap: 28px; align-items: center; margin-top: 72px; }
.phone { margin: 0; }
.phone img { border-radius: 30px; border: 1px solid var(--line-2); box-shadow: 0 0 0 7px #0b0907, 0 0 0 8px var(--line-2), 0 40px 70px -30px rgba(0, 0, 0, 0.9); }
.phones .phone:last-child { transform: translateY(36px); }
.mac {
  display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 24px; align-items: start;
  margin-top: 88px; padding: 30px; border-radius: 20px; background: var(--ink-3); border: 1px solid var(--line);
}
.mac__icon { width: 76px; height: 76px; border-radius: 18px; display: grid; place-items: center; background: #0b0907; border: 1px solid var(--line-2); }
.mac p:last-child { margin-bottom: 0; }

/* ---------- downloads (home page and docs) ---------- */
.downloads { list-style: none; margin: 20px 0 14px; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.dl { display: grid; grid-template-rows: auto auto 1fr auto auto; gap: 6px; padding: 22px 20px 20px; border-radius: var(--radius); background: var(--ink-2); border: 1px solid var(--line); }
.dl--main { border-color: rgba(245, 194, 107, 0.4); background: linear-gradient(160deg, rgba(245, 194, 107, 0.1), var(--ink-2) 55%); }
.dl h3 { margin: 0; font-size: 1.15rem; font-weight: 740; letter-spacing: -0.01em; }
.dl__req { margin: 0; font-size: 0.85rem; color: var(--muted); }
.dl__what { margin: 6px 0 12px; font-size: 0.9rem; color: #d6cfc3; }
.dl .btn { width: 100%; }
.dl__file { margin: 8px 0 0; font-family: var(--mono); font-size: 0.72rem; color: var(--muted); overflow-wrap: anywhere; text-align: center; }
.dl-notes { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; font-size: 0.9rem; color: var(--muted); }
.dl-notes strong { color: var(--cream); }

/* ---------- install (home page) ---------- */
.install__more { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; margin-top: 64px; align-items: start; }
.install__more .h3 { font-size: 1.25rem; }
.install__more p { color: #d6cfc3; }
.install__more .steps { gap: 22px; margin-bottom: 28px; }

.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; grid-template-columns: minmax(0, 1fr); gap: 30px; min-width: 0; }
.steps > li { counter-increment: step; position: relative; padding-left: 60px; min-width: 0; }
.steps > li::before {
  content: counter(step); position: absolute; left: 0; top: -4px; width: 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 750; color: var(--ink); background: var(--lamp);
  box-shadow: 0 0 0 5px rgba(245, 194, 107, 0.12), 0 0 26px var(--lamp-glow);
}
.steps > li:not(:last-child)::after { content: ""; position: absolute; left: 19px; top: 46px; bottom: -26px; width: 2px; background: linear-gradient(var(--lamp), transparent); opacity: 0.35; }
.steps h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 12px; letter-spacing: -0.01em; }
.steps h3 span { font-weight: 450; color: var(--muted); font-size: 0.9rem; letter-spacing: 0; }
.steps p { margin: 10px 0 0; }

.code { position: relative; }
pre {
  margin: 0; padding: 18px 20px; border-radius: 12px; overflow-x: auto;
  background: #0d0b08; border: 1px solid var(--line); color: #efe9df;
  font-size: 0.875rem; line-height: 1.65; tab-size: 2;
}
pre code { background: none; border: 0; padding: 0; font-size: inherit; overflow-wrap: normal; }
.code pre { padding-right: 92px; }
.copy {
  position: absolute; top: 10px; right: 10px; min-height: 32px; padding: 0 12px; border-radius: 8px; cursor: pointer;
  background: var(--ink-4); color: var(--cream); border: 1px solid var(--line-2); font: inherit; font-size: 0.8rem; font-weight: 600;
}
.copy:hover { border-color: var(--lamp); }
.copy[data-state="done"] { color: var(--ink); background: var(--lamp); border-color: var(--lamp); }

/* ---------- security ---------- */
.section--alert { background: linear-gradient(180deg, #1d160c, var(--ink)); border-top-color: rgba(245, 194, 107, 0.3); }
.security { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 40px; }
.security__lamp {
  width: 96px; height: 96px; border-radius: 50%; margin-top: 8px;
  background: radial-gradient(circle at 50% 45%, #fff3d6 0 12%, var(--lamp) 34%, rgba(245, 194, 107, 0.15) 62%, transparent 72%);
  box-shadow: 0 0 80px 20px rgba(245, 194, 107, 0.18);
}
.security h2 { max-width: 18em; }
.security .lead { color: #e5ddd0; max-width: 40em; }
.security .ticks { margin: 26px 0 30px; max-width: 46em; }

/* ---------- docs list ---------- */
.docs { list-style: none; margin: 36px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.docs a {
  display: inline-flex; align-items: center; min-height: 40px; padding: 0 16px; border-radius: 999px;
  border: 1px solid var(--line-2); color: var(--cream); text-decoration: none; font-size: 0.92rem; font-weight: 550;
}
.docs a:hover { border-color: var(--lamp); color: var(--lamp-2); }

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--line); padding: 44px 0 56px; background: #0f0d0a; }
.foot__inner { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) auto; gap: 24px 40px; align-items: start; }
.foot__brand { display: flex; gap: 14px; align-items: flex-start; }
.foot__brand img { border-radius: 7px; margin-top: 2px; }
.foot__brand p { margin: 0; }
.foot__fine { margin: 0; }
.foot__top { margin: 0; font-size: 0.9rem; }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .hero__grid { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .hero h1 { max-width: 15em; }
  .legend { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stations { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .split, .board { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .split--flip .split__text { order: 0; }
  .phones { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .phones__text { grid-column: 1 / -1; }
  .install__more { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .downloads { grid-template-columns: minmax(0, 1fr); }
  .dl { grid-template-columns: minmax(0, 1fr) auto; grid-template-rows: none; align-items: center; column-gap: 20px; }
  .dl h3, .dl__req, .dl__what { grid-column: 1; }
  .dl__what { margin: 2px 0 0; }
  .dl .btn, .dl__file { grid-column: 2; }
  .dl .btn { grid-row: 1 / span 2; width: auto; }
  .dl__file { grid-row: 3; margin: 0; }
  .foot__inner { grid-template-columns: minmax(0, 1fr); }
  .wall { gap: 24px; }
  .modes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .js .menu-btn { display: inline-flex; }
  .js .nav {
    position: absolute; left: 0; right: 0; top: var(--header-h);
    background: rgba(20, 17, 13, 0.98); border-bottom: 1px solid var(--line);
    padding: 8px 16px 18px; display: none;
  }
  .js .nav.is-open { display: block; }
  .js .nav ul { flex-direction: column; align-items: stretch; gap: 2px; }
  .js .nav a:not(.btn) { padding: 12px 12px; font-size: 1.05rem; }
  .js .nav__gh { margin: 10px 0 0; }
  .js .nav__gh .btn { width: 100%; min-height: 46px; }
  .no-js .top__inner { height: auto; flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; }
  .no-js .nav ul { flex-wrap: wrap; }
  .cols3 { grid-template-columns: minmax(0, 1fr); }
  .security { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .security__lamp { width: 64px; height: 64px; }
  .flow { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .flow__step:not(:last-child)::after { content: "↓"; right: auto; top: auto; left: 50%; bottom: -33px; transform: translateX(-50%); }
}
@media (max-width: 640px) {
  body { font-size: 0.875rem; }
  .wrap, .top__inner { padding-left: 18px; padding-right: 18px; }
  .hero { padding: 36px 0 56px; }
  .hero h1 { font-size: 1.875rem; }
  .lead, .section__lede { font-size: 0.9375rem; }
  .section h2 { font-size: 1.5rem; }
  .h3 { font-size: 1.125rem; margin-bottom: 12px; }
  .eyebrow, .kicker, .wall__label, .flow__n { font-size: 0.7rem; }
  .legend dd { font-size: 0.875rem; }
  .legend__row--wide dd { font-size: 0.95rem; }
  .flow__step strong { font-size: 1rem; }
  .card h3, .stations h3, .steps h3, .modes dt, .dl h3 { font-size: 0.95rem; }
  .card p, .modes dd, .keys__row > span:last-child, .note, .flow__what, .flow__loop, .wall__note, .dl__what, .dl-notes { font-size: 0.8125rem; }
  .dl { grid-template-columns: minmax(0, 1fr); }
  .dl .btn, .dl__file { grid-column: 1; grid-row: auto; width: 100%; }
  .dl__what { margin-bottom: 8px; }
  .install__more { margin-top: 48px; }
  .small, .facts, .window figcaption, .stations p, .keys__k, .steps h3 span, .tod__note { font-size: 0.75rem; }
  .btn { min-height: 44px; font-size: 0.9375rem; }
  .chip, .tagname { font-size: 0.8125rem; }
  .tagname { padding: 6px 11px 6px 10px; }
  .wall__tags { gap: 8px; }
  .tod__group button { font-size: 0.8125rem; }
  .cta .btn { flex: 1 1 auto; }
  .section { padding: 56px 0; }
  .section__head { margin-bottom: 28px; }
  .legend { grid-template-columns: minmax(0, 1fr); }
  .legend__row--wide { grid-column: auto; }
  .stations { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 48px; }
  .stations__wait { grid-column: 1 / -1; }
  .split { margin-top: 48px; }
  .modes { grid-template-columns: minmax(0, 1fr); }
  .keys__row { grid-template-columns: minmax(0, 1fr); gap: 6px; }
  .phones { gap: 18px; margin-top: 48px; }
  .phone img { border-radius: 22px; box-shadow: 0 0 0 5px #0b0907, 0 0 0 6px var(--line-2), 0 30px 50px -24px rgba(0, 0, 0, 0.9); }
  .phones .phone:last-child { transform: translateY(24px); }
  .mac { grid-template-columns: minmax(0, 1fr); padding: 22px; margin-top: 64px; }
  .mac__icon { width: 60px; height: 60px; border-radius: 14px; }
  .steps > li { padding-left: 50px; }
  .steps > li::before { width: 34px; height: 34px; font-size: 0.95rem; }
  .steps > li:not(:last-child)::after { left: 16px; top: 40px; }
  pre { font-size: 0.75rem; padding: 14px 16px; }
  .code pre { padding-right: 16px; padding-top: 48px; }
  .tod__note { flex-basis: 100%; }
  .tod__group { flex-wrap: wrap; }
}

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

@media (forced-colors: active) {
  .lamp, .chip::before, .steps > li::before { forced-color-adjust: none; }
  .tod__group button[aria-pressed="true"] { outline: 2px solid CanvasText; }
}