/*
 * The landing page, in the extension's own furniture.
 *
 * Same vocabulary as src/ui/tokens.css: a warm parchment pane over a deep
 * campaign-green shell. Copied rather than
 * imported because this page has no build step and no dependency on the
 * extension — it is one HTML file and one stylesheet, which is what makes it
 * deployable to a static host by copying a directory.
 *
 * The palette below is the extension's, value for value. If one of them
 * changes, the two drift, and that is a real cost — accepted because the
 * alternative is a Tailwind build in the deploy path of a brochure.
 */

:root {
  --field: #07140e;
  --window: #fffaf0;
  --window-hi: #f2e8d2;
  --frame: #69502e;
  --frame-dim: #d7c6a2;
  --parchment: #2a2117;
  --muted: #6f604e;
  --faint: #907f68;
  --gold: #a56e14;
  --ok: #247447;
  --warn: #a55714;
  --banner: #205f3b;
  --banner-hi: #2f7b4f;
  --banner-ink: #f4fbf3;

  --ui: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: ui-monospace, 'SF Mono', 'Cascadia Mono', Menlo, Consolas, monospace;
  --quest: 'Iowan Old Style', 'Palatino Linotype', Palatino, Georgia, serif;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font: 16px/1.6 var(--ui);
  color: var(--parchment);
  background:
    radial-gradient(circle at 18% -10%, #28523a 0, transparent 34%),
    radial-gradient(circle at 85% 12%, #1c3b2a 0, transparent 30%),
    linear-gradient(145deg, #07140e, #10281b 55%, #07110c);
  background-attachment: fixed;
  min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--gold); text-decoration-thickness: 2px; text-underline-offset: 2px; }
a:hover { color: var(--parchment); }

.skip {
  position: absolute; left: -9999px;
  background: var(--window); padding: 8px 14px; z-index: 10;
}
.skip:focus { left: 12px; top: 12px; }

/* ------------------------------------------------------------------ topbar */

.topbar {
  position: sticky; top: 0; z-index: 5;
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px;
  padding: 10px 20px;
  background: rgb(7 20 14 / 92%);
  border-bottom: 1px solid rgb(255 255 255 / 10%);
  box-shadow: 0 12px 30px rgb(0 0 0 / 18%);
  backdrop-filter: blur(12px);
}
.wordmark {
  font: 700 19px/1 var(--mono);
  color: var(--banner-ink);
  margin-right: auto;
}
.wordmark .dot { opacity: 0.6; }
.topbar nav { display: flex; flex-wrap: wrap; gap: 6px 16px; }
.topbar a {
  color: var(--banner-ink); font: 500 14.5px/1 var(--ui);
  text-decoration: none; padding: 5px 2px;
}
.topbar a:hover { text-decoration: underline; text-decoration-thickness: 2px; }
.topbar a.ghost {
  border: 1px solid rgb(255 255 255 / 45%); padding: 6px 11px; border-radius: 999px;
}
.topbar a.ghost:hover { background: var(--banner-ink); color: var(--banner); text-decoration: none; }

/* ------------------------------------------------------------------ layout */

main { max-width: 1180px; margin: 0 auto; padding: 26px 16px 12px; }
section { margin-bottom: 26px; }

.row { display: grid; gap: 20px; grid-template-columns: 1fr; }
@media (min-width: 900px) {
  .row { grid-template-columns: 1fr 1fr; align-items: start; }
  .row.three { grid-template-columns: repeat(3, 1fr); }
}

/* ------------------------------------------------------------------ window */

.window {
  background: var(--window);
  border: 1px solid rgb(105 80 46 / 55%);
  border-radius: 16px;
  box-shadow: 0 20px 55px rgb(0 0 0 / 24%);
  overflow: hidden;
}

.banner {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 14px;
  background: linear-gradient(135deg, var(--banner-hi), var(--banner));
  box-shadow: inset 0 -1px 0 rgb(0 0 0 / 20%);
  color: var(--banner-ink);
  font: 700 13px/1 var(--mono);
  letter-spacing: 0.12em;
}
.banner .close {
  width: 20px; height: 20px; line-height: 18px; text-align: center;
  border: 1px solid rgb(255 255 255 / 38%); border-radius: 999px;
  background: rgb(255 255 255 / 12%); color: #fff;
  font-size: 13px;
}

.pane { padding: 16px 18px; }
.pane > :first-child { margin-top: 0; }
.pane > :last-child { margin-bottom: 0; }
.pane p { margin: 0 0 12px; }

h1 {
  font: 700 clamp(28px, 4.6vw, 44px)/1.1 var(--quest);
  margin: 0 0 14px;
  color: var(--parchment);
}
.lede { font-size: 17px; }
.note { font-size: 14.5px; color: var(--muted); }

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

.hero-pane { display: grid; gap: 22px; grid-template-columns: 1fr; }
@media (min-width: 940px) {
  .hero-pane { grid-template-columns: 1fr 1fr; align-items: center; }
}
.hero-shot img { border: 1px solid var(--frame-dim); border-radius: 11px; box-shadow: 0 10px 24px rgb(22 16 10 / 18%); }

.claims { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px !important; }
.chip {
  border: 2px solid var(--frame-dim); background: var(--window-hi);
  border-radius: 999px; padding: 4px 10px; font: 600 12.5px/1.4 var(--mono); color: var(--muted);
}
.chip.gold { border-color: var(--gold); color: var(--gold); }

/* ------------------------------------------------------------------ button */

.cta { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 0 !important; }
.btn {
  display: inline-block; text-decoration: none;
  padding: 10px 20px;
  background: var(--banner); color: var(--banner-ink);
  border: 1px solid rgb(0 0 0 / 22%); border-radius: 9px;
  box-shadow: 0 7px 16px rgb(13 55 32 / 22%);
  font: 700 15px/1 var(--mono);
}
.btn:hover { background: var(--banner-hi); color: #14320f; }
.btn:active { transform: translateY(1px); box-shadow: 0 3px 8px rgb(13 55 32 / 20%); }
.btn.quiet {
  background: var(--window-hi); color: var(--parchment);
  box-shadow: 0 7px 16px rgb(42 33 23 / 12%);
}
.btn.quiet:hover { background: #f6ecd4; }

/* ------------------------------------------------------------------- slots */

/* The inventory grid: a sunken cell per item, which is the one piece of the
   reference GUI that is doing real work here — it makes six features read as
   a set rather than as a bulleted list. */
.slots { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
@media (min-width: 520px) { .slots { grid-template-columns: 1fr 1fr; } }

.slot {
  display: grid; grid-template-columns: 44px 1fr; gap: 4px 12px; align-items: center;
  padding: 10px;
  background: var(--window-hi);
  border: 1px solid var(--frame-dim); border-radius: 10px;
}
.slot img { grid-row: span 2; width: 44px; height: 44px; image-rendering: pixelated; }
.slot b { font: 700 15px/1.2 var(--ui); align-self: end; }
.slot span { font-size: 13.5px; line-height: 1.45; color: var(--muted); align-self: start; }

/* -------------------------------------------------------------------- code */

pre {
  margin: 0 0 14px;
  padding: 12px 14px;
  background: var(--field); color: var(--window);
  border: 1px solid rgb(255 255 255 / 12%); border-radius: 10px;
  font: 13px/1.55 var(--mono);
  overflow-x: auto;
}
.flow { color: var(--banner-hi); font-size: 12px; }
code { font: 13px/1.4 var(--mono); background: var(--window-hi); padding: 1px 5px; }

.steps { margin: 0 0 14px; padding-left: 22px; }
.steps li { margin-bottom: 5px; }

.ticks { list-style: none; margin: 0; padding: 0; }
.ticks li {
  position: relative; padding-left: 24px; margin-bottom: 11px;
  font-size: 15px; line-height: 1.55;
}
.ticks li::before {
  content: '✔'; position: absolute; left: 0; top: 0;
  color: var(--ok); font-weight: 700;
}

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

.scroll { overflow-x: auto; margin-bottom: 14px; }
table { border-collapse: collapse; width: 100%; min-width: 540px; font-size: 14.5px; }
th {
  text-align: left; padding: 8px 10px;
  background: var(--banner); color: var(--banner-ink);
  font: 700 12px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase;
}
td { padding: 8px 10px; border-bottom: 1px solid var(--frame-dim); }
tr:last-child td { border-bottom: 0; }
td.ok { color: var(--ok); font-weight: 600; }
td.warn { color: var(--warn); font-weight: 600; }

/* ------------------------------------------------------------------- shots */

.shot { margin: 0; }
.shot img { width: 100%; border-top: 1px solid var(--frame-dim); }
.shot figcaption {
  padding: 12px 14px; font-size: 14px; line-height: 1.5; color: var(--muted);
  border-top: 1px solid var(--frame-dim);
}
.shot.bare img { border-top: 0; }

/* -------------------------------------------------------------------- acts */

.acts { list-style: none; margin: 0 0 14px; padding: 0; display: grid; gap: 8px; }
@media (min-width: 640px) { .acts { grid-template-columns: repeat(5, 1fr); } }

.acts li {
  background: var(--window-hi);
  border: 1px solid var(--frame-dim); border-radius: 10px; overflow: hidden;
  padding-bottom: 8px;
}
.acts img { width: 100%; aspect-ratio: 8 / 5; object-fit: cover; border-bottom: 2px solid #c9a86f; }
.acts b { display: block; padding: 7px 8px 0; font: 700 13px/1.2 var(--mono); }
.acts span { display: block; padding: 2px 8px 0; font-size: 12.5px; line-height: 1.4; color: var(--muted); }

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

footer {
  max-width: 1180px; margin: 0 auto; padding: 20px 18px 40px;
  color: #b8c9ae; font-size: 14px; text-align: center;
}
footer a { color: #e0c98a; }
footer a:hover { color: #fff; }
footer .fine { font-size: 12.5px; color: #8fa387; margin-bottom: 0; }

/* ----------------------------------------------------------------- motion */

@media (prefers-reduced-motion: no-preference) {
  .btn { transition: background 90ms steps(2, end); }
}