/*
 * Lucarnia marketing site.
 *
 * Visual direction: "lamplight at dusk" — a warm interior glimpsed through a
 * window set into a cool wall. See .squad/decisions/inbox/inara-visual-direction.md.
 *
 * Tokens (--bk-*) are copied verbatim from the product's design system
 * (bedrock/ui-kit/src/styles/tokens.css) so the site and the appliance read as
 * one product. Light theme by default. Do NOT rename these to guessed names:
 * the product uses --bk-font-family and --bk-color-bg, and unknown --bk-*
 * properties fail silently.
 *
 * The Lucarnia brand layer (--luc-*) lives here, in the product, NOT in bedrock:
 * bedrock is shared with rtsp-proxy and a product colour there would leak into a
 * sibling appliance.
 */

/* Self-hosted fonts — no third-party host, so the privacy claim the page makes
   is also true of the page. Fonts are variable; latin subset only. */
@font-face {
  font-family: "Inter var";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("./fonts/InterVariable.woff2") format("woff2");
}
@font-face {
  font-family: "Fraunces";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("./fonts/Fraunces-latin.woff2") format("woff2");
}
@font-face {
  font-family: "Fraunces";
  font-style: italic;
  font-weight: 400 600;
  font-display: swap;
  src: url("./fonts/Fraunces-latin-italic.woff2") format("woff2");
}

:root {
  color-scheme: light;

  --bk-neutral-50: #fafaf9;
  --bk-neutral-100: #f4f4f2;
  --bk-neutral-200: #e8e8e5;
  --bk-neutral-300: #d6d6d1;
  --bk-neutral-400: #a1a19b;
  --bk-neutral-500: #78786f;
  --bk-neutral-600: #57574f;
  --bk-neutral-700: #3f3f38;
  --bk-neutral-800: #27272a;
  --bk-neutral-900: #18181b;

  --bk-color-bg: var(--bk-neutral-50);
  --bk-color-surface: #ffffff;
  --bk-color-surface-strong: var(--bk-neutral-100);
  --bk-color-surface-raised: #ffffff;
  --bk-color-text: var(--bk-neutral-900);
  --bk-color-muted: var(--bk-neutral-500);

  --bk-color-border: rgb(24 24 27 / 12%);
  --bk-color-border-subtle: rgb(24 24 27 / 7%);
  --bk-color-border-strong: rgb(24 24 27 / 22%);

  --bk-color-primary: var(--bk-neutral-900);
  --bk-color-primary-strong: #000000;
  --bk-color-primary-text: #ffffff;
  --bk-color-primary-soft: rgb(24 24 27 / 6%);

  --bk-color-accent: #4338ca;
  --bk-color-accent-soft: rgb(67 56 202 / 9%);

  --bk-color-danger: #b42318;
  --bk-color-success: #067647;
  --bk-color-success-soft: rgb(6 118 71 / 10%);
  --bk-color-warning: #b54708;
  --bk-color-focus: #4338ca;

  --bk-shadow-sm: 0 1px 2px rgb(24 24 27 / 5%);
  --bk-shadow-md: 0 1px 2px rgb(24 24 27 / 5%), 0 2px 6px rgb(24 24 27 / 4%);
  --bk-shadow-lg: 0 2px 4px rgb(24 24 27 / 4%), 0 8px 20px rgb(24 24 27 / 7%);
  --bk-shadow-xl: 0 4px 8px rgb(24 24 27 / 5%), 0 24px 48px rgb(24 24 27 / 12%);

  --bk-space-1: 0.25rem;
  --bk-space-2: 0.5rem;
  --bk-space-3: 0.75rem;
  --bk-space-4: 1rem;
  --bk-space-5: 1.5rem;
  --bk-space-6: 2rem;
  --bk-space-7: 3rem;
  --bk-space-8: 4rem;
  --bk-space-9: 6rem;

  /* Text/UI face. Display face is a separate token, per the design system. */
  --bk-font-family: "Inter var", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bk-font-family-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  /* Lucarnia opts the shared display hook into Fraunces (product layer only). */
  --bk-font-family-display: "Fraunces", Georgia, "Times New Roman", serif;

  --bk-font-size-xs: 0.8125rem;
  --bk-font-size-sm: 0.9375rem;
  --bk-font-size-md: 1.0625rem;
  --bk-font-size-lg: 1.25rem;
  --bk-font-size-xl: 1.625rem;
  --bk-font-size-2xl: 2.125rem;
  --bk-font-size-3xl: 2.75rem;

  --bk-font-weight-normal: 400;
  --bk-font-weight-medium: 500;
  --bk-font-weight-semibold: 600;
  --bk-font-weight-bold: 700;

  --bk-tracking-tight: -0.02em;
  --bk-tracking-normal: 0;
  --bk-tracking-wide: 0.02em;
  --bk-tracking-caps: 0.08em;

  --bk-line-height: 1.5;
  --bk-line-height-tight: 1.2;

  --bk-radius-xs: 0.375rem;
  --bk-radius-sm: 0.5rem;
  --bk-radius-md: 0.75rem;
  --bk-radius-lg: 1rem;
  --bk-radius-xl: 1.5rem;
  --bk-radius-pill: 999px;

  --bk-duration-base: 200ms;
  --bk-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --bk-transition: var(--bk-duration-base) var(--bk-ease-out);

  /* -------------------------------------------------------------------------
   * Lucarnia brand layer. Amber is light, not a fill: it appears as glow and
   * warm gradient on the mark and the lit window, never as a button.
   * --------------------------------------------------------------------- */
  --luc-lamplight: #b45309;        /* the identity amber */
  --luc-lamplight-bright: #e08911; /* the brighter core of the light */
  --luc-lamplight-deep: #7c2d12;   /* the shadowed edge of the aperture */
  --luc-ember: #f59e0b;            /* warmest highlight, used very sparingly */
  --luc-glow: rgb(180 83 9 / 22%);
  --luc-glow-soft: rgb(180 83 9 / 10%);
  --luc-tint: rgb(180 83 9 / 7%);  /* faint warm wash on light surfaces */

  /* Dusk: the warm near-black ground for accent bands. Warmer than the cool
     neutral-900, so the amber reads as light in a warm room, not a badge. */
  --luc-dusk: #1c1613;
  --luc-dusk-deep: #100c0a;
  --luc-dusk-text: #f2ede7;
  --luc-dusk-muted: #b9ada2;
  --luc-dusk-hair: rgb(255 246 237 / 12%);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--bk-color-bg);
  color: var(--bk-color-text);
  font-family: var(--bk-font-family);
  font-size: var(--bk-font-size-md);
  line-height: var(--bk-line-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

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

:focus-visible {
  outline: 3px solid var(--bk-color-focus);
  outline-offset: 2px;
  border-radius: var(--bk-radius-xs);
}

img, svg { max-width: 100%; display: block; }

/* Layout ------------------------------------------------------------------ */

.container {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: var(--bk-space-5);
}

section { padding-block: var(--bk-space-9); }

.eyebrow {
  font-size: var(--bk-font-size-xs);
  font-weight: var(--bk-font-weight-semibold);
  letter-spacing: var(--bk-tracking-caps);
  text-transform: uppercase;
  color: var(--luc-lamplight);
  margin: 0 0 var(--bk-space-4);
  display: inline-flex;
  align-items: center;
  gap: var(--bk-space-2);
}
/* A small lit dot before the eyebrow — the lamp, echoed at label scale. */
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: var(--bk-radius-pill);
  background: var(--luc-lamplight);
  box-shadow: 0 0 0 3px var(--luc-glow-soft);
}

/* Display face for headings — the primary character lever. */
h1, h2 {
  font-family: var(--bk-font-family-display);
  font-optical-sizing: auto;
  font-weight: var(--bk-font-weight-semibold);
  letter-spacing: var(--bk-tracking-tight);
  line-height: var(--bk-line-height-tight);
  margin: 0;
  text-wrap: balance;
}
h3 {
  font-family: var(--bk-font-family);
  letter-spacing: var(--bk-tracking-tight);
  line-height: var(--bk-line-height-tight);
  font-weight: var(--bk-font-weight-semibold);
  margin: 0;
}

h1 { font-size: clamp(2.6rem, 6.4vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 2.75rem); }
h3 { font-size: var(--bk-font-size-lg); }

p { margin: var(--bk-space-4) 0 0; }
.lead {
  font-size: var(--bk-font-size-lg);
  color: var(--bk-color-muted);
  max-width: 52ch;
  line-height: 1.55;
}

.section-head { max-width: 40ch; margin-bottom: var(--bk-space-7); }
.section-head .lead { margin-top: var(--bk-space-4); }

/* Header ------------------------------------------------------------------ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgb(250 250 249 / 80%);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--bk-color-border-subtle);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--bk-space-4);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--bk-space-3);
  color: var(--bk-color-text);
}
.brand:hover { text-decoration: none; }
.brand .mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  filter: drop-shadow(0 3px 8px rgb(180 83 9 / 28%));
}
.brand .wordmark {
  font-family: var(--bk-font-family-display);
  font-optical-sizing: auto;
  font-weight: var(--bk-font-weight-semibold);
  font-size: 1.4rem;
  letter-spacing: -0.01em;
}
.nav { display: flex; align-items: center; gap: var(--bk-space-6); }
.nav a { color: var(--bk-color-muted); font-size: var(--bk-font-size-sm); font-weight: var(--bk-font-weight-medium); }
.nav a:hover { color: var(--bk-color-text); text-decoration: none; }
@media (max-width: 720px) { .nav .nav-link { display: none; } }

/* Buttons ----------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--bk-space-2);
  padding: var(--bk-space-3) var(--bk-space-5);
  border-radius: var(--bk-radius-pill);
  font-size: var(--bk-font-size-sm);
  font-weight: var(--bk-font-weight-semibold);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--bk-transition);
  transition-property: transform, background-color, box-shadow, border-color, color;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--bk-color-primary); color: var(--bk-color-primary-text); box-shadow: var(--bk-shadow-md); }
.btn-primary:hover { background: var(--bk-color-primary-strong); box-shadow: var(--bk-shadow-lg); }
.btn-ghost { background: var(--bk-color-surface); color: var(--bk-color-text); border-color: var(--bk-color-border); }
.btn-ghost:hover { border-color: var(--bk-color-border-strong); }
/* Ghost button on a dusk ground. */
.on-dusk .btn-ghost { background: transparent; color: var(--luc-dusk-text); border-color: var(--luc-dusk-hair); }
.on-dusk .btn-ghost:hover { border-color: rgb(255 246 237 / 30%); }

/* Hero -------------------------------------------------------------------- */

.hero {
  padding-top: var(--bk-space-8);
  padding-bottom: var(--bk-space-9);
  position: relative;
  overflow: hidden;
}
/* The lamplight: a warm glow washing up from behind the device, so the page
   itself feels lit from within. Kept faint on a light ground. */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 55% at 78% 42%, var(--luc-glow) 0%, var(--luc-glow-soft) 38%, transparent 72%),
    radial-gradient(90% 70% at 50% -10%, var(--luc-tint) 0%, transparent 60%);
  pointer-events: none;
}
.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--bk-space-8);
  align-items: center;
}
@media (max-width: 880px) { .hero .container { grid-template-columns: 1fr; gap: var(--bk-space-7); } }

.hero .lead { margin-top: var(--bk-space-5); }
.hero-cta { display: flex; gap: var(--bk-space-3); margin-top: var(--bk-space-6); flex-wrap: wrap; }
.hero-note {
  margin-top: var(--bk-space-5);
  font-size: var(--bk-font-size-sm);
  color: var(--bk-color-muted);
  max-width: 46ch;
}
.hero-note em { font-family: var(--bk-font-family-display); font-style: italic; font-weight: var(--bk-font-weight-medium); color: var(--luc-lamplight-deep); }

/* The device: a portrait screen framed in a wall, rendered in CSS. */
.hero-visual { display: grid; place-items: center; }
.wall {
  position: relative;
  width: min(360px, 92%);
  aspect-ratio: 3 / 4;
  border-radius: var(--bk-radius-xl);
  display: grid;
  place-items: center;
  /* A dim plaster wall at dusk, so the lit screen is the brightest thing. */
  background:
    radial-gradient(120% 90% at 50% 18%, #efe7dd 0%, #e4dace 55%, #d8ccbc 100%);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 60%), var(--bk-shadow-lg);
  border: 1px solid var(--bk-color-border-subtle);
}
.wall::after {
  /* Warm light spilling from the recessed window onto the plaster. */
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(46% 40% at 50% 46%, var(--luc-glow) 0%, transparent 70%);
  pointer-events: none;
}
.device-frame {
  position: relative;
  z-index: 1;
  width: 62%;
  aspect-ratio: 9 / 16;
  background: linear-gradient(#141210, #050505);
  border-radius: 22px;
  padding: 8px;
  box-shadow:
    0 0 0 1px rgb(0 0 0 / 40%),
    0 18px 40px rgb(28 22 19 / 32%),
    0 0 60px 4px var(--luc-glow);
}
.device-screen {
  width: 100%;
  height: 100%;
  border-radius: 14px;
  overflow: hidden;
  display: grid;
  grid-template-rows: 1.5fr 1fr 0.7fr;
  gap: 5px;
  background: #0b0b0d;
  padding: 5px;
}
.tile { border-radius: 7px; position: relative; overflow: hidden; }
.tile-cams { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; }
.cam { border-radius: 6px; background: linear-gradient(135deg, #223042, #0f172a); }
.cam.b { background: linear-gradient(135deg, #3a4657, #131a26); }
/* The memories tile carries the lamplight — the warmest, largest thing on the
   screen, and hints at video with a play glyph. */
.tile-photo { background: linear-gradient(155deg, var(--luc-ember), var(--luc-lamplight) 42%, var(--luc-lamplight-deep) 78%, #241611); }
.tile-photo .play {
  position: absolute; top: 8px; right: 8px;
  width: 18px; height: 18px; border-radius: var(--bk-radius-pill);
  background: rgb(255 255 255 / 92%); display: grid; place-items: center;
}
.tile-photo .play::after {
  content: ""; margin-left: 2px;
  border-left: 6px solid var(--luc-lamplight-deep);
  border-top: 4px solid transparent; border-bottom: 4px solid transparent;
}
.tile-strip { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; }
.tile-weather { background: linear-gradient(160deg, #d8c7b2, #9a8straal); }
.tile-solar { background: linear-gradient(160deg, var(--luc-lamplight), var(--luc-lamplight-deep)); }
.tile .label {
  position: absolute; left: 7px; bottom: 5px;
  font-size: 8px; letter-spacing: var(--bk-tracking-caps); text-transform: uppercase;
  color: rgb(255 255 255 / 88%); font-weight: var(--bk-font-weight-semibold);
}

/* Trust badge row --------------------------------------------------------- */

.trustbar { border-block: 1px solid var(--bk-color-border-subtle); background: var(--bk-color-surface); }
.trustbar .container {
  display: flex; flex-wrap: wrap; gap: var(--bk-space-5) var(--bk-space-6);
  justify-content: space-between; padding-block: var(--bk-space-5);
}
.trust { display: inline-flex; align-items: center; gap: var(--bk-space-3); font-size: var(--bk-font-size-sm); color: var(--bk-color-text); font-weight: var(--bk-font-weight-medium); }
.trust svg { color: var(--bk-color-success); flex: none; }

/* Dusk band (privacy + CTA) ----------------------------------------------- */

.on-dusk {
  position: relative;
  color: var(--luc-dusk-text);
  background:
    radial-gradient(80% 60% at 50% -8%, rgb(180 83 9 / 24%) 0%, transparent 60%),
    linear-gradient(180deg, var(--luc-dusk) 0%, var(--luc-dusk-deep) 100%);
}
.on-dusk .eyebrow { color: var(--luc-ember); }
.on-dusk .eyebrow::before { background: var(--luc-ember); box-shadow: 0 0 0 3px rgb(245 158 11 / 20%); }
.on-dusk h2 { color: #fff; }
.on-dusk .lead { color: var(--luc-dusk-muted); }

/* Memories — the emotional core, given the dramatic dusk band -------------- */

.memories h2 { max-width: 20ch; }
.memories .lead { max-width: 54ch; }

/* Quiet supporting points on a dusk or light ground. */
.points {
  margin-top: var(--bk-space-7);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--bk-space-6);
}
@media (max-width: 720px) { .points { grid-template-columns: 1fr; gap: var(--bk-space-5); } }
.point { padding-top: var(--bk-space-4); border-top: 1px solid var(--bk-color-border); }
.point h3 { font-size: var(--bk-font-size-md); }
.point p { margin-top: var(--bk-space-2); font-size: var(--bk-font-size-sm); color: var(--bk-color-muted); line-height: 1.6; }
.on-dusk .point { border-top-color: var(--luc-dusk-hair); }
.on-dusk .point h3 { color: #fff; }
.on-dusk .point p { color: var(--luc-dusk-muted); }

/* Card trio — shared by Home and Yours-to-shape --------------------------- */

.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--bk-space-5); }
@media (max-width: 820px) { .card-grid { grid-template-columns: 1fr; } }

/* Governs — the "no one administers it" pull-statement, centred and unhurried */

.governs { text-align: center; }
.governs .container { max-width: 760px; }
.governs h2 { max-width: 18ch; margin-inline: auto; }
.governs .lead { max-width: 60ch; margin-inline: auto; }

/* In-situ gallery — designed slots for real product photography ------------ */

.gallery-grid {
  margin-top: var(--bk-space-8);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--bk-space-5);
  align-items: end;
}
@media (max-width: 900px) { .gallery-grid { grid-template-columns: 1fr 1fr; } .shot-wide { grid-column: 1 / -1; } }
@media (max-width: 560px) { .gallery-grid { grid-template-columns: 1fr; } }
.shot { margin: 0; }
.shot-frame {
  position: relative;
  border-radius: var(--bk-radius-lg);
  overflow: hidden;
  border: 1px solid var(--luc-glow-soft);
  box-shadow: var(--bk-shadow-md);
  /* A lit window in a dim wall, until a real photograph replaces it. */
  background:
    radial-gradient(60% 46% at 50% 40%, var(--luc-glow) 0%, transparent 72%),
    linear-gradient(160deg, #efe7dd 0%, #e4dace 52%, #d6c9b8 100%);
}
.shot-wide .shot-frame { aspect-ratio: 3 / 2; }
.shot-tall .shot-frame { aspect-ratio: 9 / 16; }
.shot-frame img { width: 100%; height: 100%; object-fit: cover; display: block; }
.shot-badge {
  position: absolute; left: var(--bk-space-4); bottom: var(--bk-space-4);
  font-size: var(--bk-font-size-xs); letter-spacing: var(--bk-tracking-caps);
  text-transform: uppercase; font-weight: var(--bk-font-weight-semibold);
  color: var(--luc-lamplight-deep);
  background: rgb(255 255 255 / 72%); backdrop-filter: blur(4px);
  padding: 4px 10px; border-radius: var(--bk-radius-pill);
}
.shot figcaption {
  margin-top: var(--bk-space-3);
  font-size: var(--bk-font-size-sm); color: var(--bk-color-muted);
}

/* Privacy — kept substantial: a distinct lamplit panel, not a demoted note --- */

.privacy h2 { max-width: 26ch; }
.privacy-panel {
  background:
    radial-gradient(120% 90% at 50% -20%, var(--luc-tint) 0%, transparent 60%),
    var(--bk-color-surface);
  border: 1px solid var(--luc-glow-soft);
  border-radius: var(--bk-radius-xl);
  padding: clamp(var(--bk-space-6), 5vw, var(--bk-space-9));
  box-shadow: var(--bk-shadow-sm);
}
.privacy-panel .section-head { margin-bottom: var(--bk-space-7); }
.privacy-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--bk-space-6); }
@media (max-width: 820px) { .privacy-grid { grid-template-columns: 1fr; gap: var(--bk-space-6); } }
.privacy-card { padding-top: var(--bk-space-4); border-top: 2px solid var(--luc-glow-soft); }
.privacy-card h3 { font-size: var(--bk-font-size-md); }
.privacy-card p { margin-top: var(--bk-space-3); font-size: var(--bk-font-size-sm); color: var(--bk-color-muted); line-height: 1.6; }
.privacy-card .ticks { color: var(--bk-color-text); font-size: var(--bk-font-size-sm); line-height: 1.9; }
.privacy-card .tick { color: var(--bk-color-success); font-weight: var(--bk-font-weight-semibold); }
.card {
  background: var(--bk-color-surface);
  border: 1px solid var(--bk-color-border-subtle);
  border-radius: var(--bk-radius-lg);
  padding: var(--bk-space-6);
  box-shadow: var(--bk-shadow-sm);
  transition: var(--bk-transition);
  transition-property: transform, box-shadow, border-color;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--bk-shadow-lg); border-color: var(--bk-color-border); }
.card .ico {
  width: 42px; height: 42px; border-radius: var(--bk-radius-sm);
  display: grid; place-items: center; margin-bottom: var(--bk-space-4);
  background: var(--luc-tint); color: var(--luc-lamplight-deep);
  border: 1px solid var(--luc-glow-soft);
}
.card h3 { font-size: var(--bk-font-size-md); }
.card p { font-size: var(--bk-font-size-sm); color: var(--bk-color-muted); line-height: 1.6; }

/* How it works ------------------------------------------------------------ */

.how { background: var(--bk-color-surface-strong); }
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--bk-space-6); counter-reset: step; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; gap: var(--bk-space-7); } }
.step { position: relative; padding-top: var(--bk-space-7); }
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; top: 0; left: 0;
  width: 38px; height: 38px; border-radius: var(--bk-radius-pill);
  display: grid; place-items: center;
  background: var(--bk-color-surface); color: var(--luc-lamplight-deep);
  border: 1px solid var(--luc-glow);
  font-family: var(--bk-font-family-display);
  font-size: var(--bk-font-size-md); font-weight: var(--bk-font-weight-semibold);
  box-shadow: var(--bk-shadow-sm);
}
.step h3 { font-size: var(--bk-font-size-md); margin-top: var(--bk-space-5); }
.step p { font-size: var(--bk-font-size-sm); color: var(--bk-color-muted); line-height: 1.6; }

/* Specs ------------------------------------------------------------------- */

.specs .grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 var(--bk-space-8); }
@media (max-width: 640px) { .specs .grid { grid-template-columns: 1fr; } }
.spec { display: flex; justify-content: space-between; gap: var(--bk-space-4); padding-block: var(--bk-space-4); border-bottom: 1px solid var(--bk-color-border-subtle); }
.spec dt { color: var(--bk-color-muted); font-size: var(--bk-font-size-sm); margin: 0; }
.spec dd { margin: 0; font-weight: var(--bk-font-weight-medium); text-align: right; }
.spec-note { margin-top: var(--bk-space-5); font-size: var(--bk-font-size-sm); color: var(--bk-color-muted); }

/* FAQ --------------------------------------------------------------------- */

.faq .list { margin-top: var(--bk-space-6); max-width: 760px; }
details {
  border-bottom: 1px solid var(--bk-color-border-subtle);
  padding: var(--bk-space-5) 0;
}
summary {
  cursor: pointer; list-style: none;
  font-weight: var(--bk-font-weight-semibold);
  font-size: var(--bk-font-size-md);
  display: flex; justify-content: space-between; align-items: center; gap: var(--bk-space-4);
}
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--luc-lamplight); font-weight: var(--bk-font-weight-normal); font-size: var(--bk-font-size-xl); line-height: 1; }
details[open] summary::after { content: "\2212"; }
details p { color: var(--bk-color-muted); font-size: var(--bk-font-size-sm); max-width: 68ch; line-height: 1.6; }

/* CTA --------------------------------------------------------------------- */

.cta { text-align: center; }
.cta .container { display: grid; place-items: center; gap: var(--bk-space-5); }
.cta h2 { max-width: 20ch; }
.cta .lead { margin-inline: auto; text-align: center; color: var(--luc-dusk-muted); }
.cta .btn-primary { background: #fff; color: var(--luc-dusk); }
.cta .btn-primary:hover { background: #fff; color: #000; }

/* Footer ------------------------------------------------------------------ */

.site-footer { border-top: 1px solid var(--bk-color-border-subtle); background: var(--bk-color-surface); }
.site-footer .container {
  display: flex; flex-wrap: wrap; gap: var(--bk-space-4);
  justify-content: space-between; align-items: center;
  padding-block: var(--bk-space-6); color: var(--bk-color-muted); font-size: var(--bk-font-size-sm);
}
.site-footer .foot-brand { display: inline-flex; align-items: center; gap: var(--bk-space-2); }
.site-footer .foot-brand .mark { width: 18px; height: 18px; }
.site-footer .foot-links { display: flex; gap: var(--bk-space-5); }
.site-footer a { color: var(--bk-color-muted); }