:root {
  --teak: #5c3a24;
  --ink: #24180f;
  --paper: #f4efe4;
  --jade: #e8efe4;
  --green: #2f5b45;
  --apricot: #d4a05a;
  --indigo: #324a6d;
  --mute: #7a6a58;
  --serif: "Noto Serif SC", "Songti SC", serif;
  --sans: "Noto Sans SC", "PingFang SC", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 76px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.app-link { color: var(--indigo); text-decoration: underline; text-underline-offset: 3px; }
button { font-family: inherit; cursor: pointer; }
code { font-family: var(--mono); background: rgba(92, 58, 36, 0.1); padding: 0.05em 0.35em; }

.paper-grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 40;
  opacity: 0.22;
  background-image: url("images/texture.webp");
  background-size: 380px auto;
  mix-blend-mode: multiply;
}
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; z-index: 70; background: var(--indigo); color: #fff; padding: 8px 12px; }

.loft-bar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 22px;
  background: rgba(244, 239, 228, 0.94);
  border-bottom: 3px solid var(--teak);
}
.keep-mark { display: flex; align-items: center; gap: 10px; font-family: var(--serif); font-size: 22px; }
.keep-mark small { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; color: var(--mute); }
.drawer-glyph {
  width: 30px;
  height: 26px;
  border: 2px solid var(--teak);
  background: linear-gradient(#f4efe4 40%, var(--indigo) 40% 48%, #f4efe4 48%);
}
.nav-toggle { display: none; background: var(--teak); color: var(--paper); border: 0; padding: 10px 14px; font-size: 16px; }
.loft-links { display: flex; gap: 16px; align-items: center; font-size: 14px; }
.loft-links a { color: var(--mute); }
.loft-links a.is-active, .loft-links a:hover { color: var(--teak); }
.loft-links .live { background: var(--teak); color: var(--paper); padding: 8px 12px; }

.loft { position: relative; min-height: 100vh; display: grid; align-items: end; }
.loft img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.loft::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(36, 24, 15, 0.1) 0%, rgba(36, 24, 15, 0.78) 100%);
}
.loft-copy { position: relative; z-index: 1; color: var(--paper); padding: 10vh 8vw 8vh; max-width: 820px; }
.loft-copy .kicker { color: var(--apricot); }
.kicker { font-family: var(--mono); letter-spacing: 0.16em; font-size: 12px; color: var(--indigo); margin: 0 0 10px; }
h1, h2, h3 { font-family: var(--serif); margin: 0 0 12px; line-height: 1.08; }
h1 { font-size: clamp(40px, 6.5vw, 80px); }
h2 { font-size: clamp(28px, 3.6vw, 42px); }
h3 { font-size: 22px; }
.lead { font-size: 17px; }
.slips { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 18px 0; }
.slips li { font-family: var(--mono); font-size: 12px; border: 1px solid rgba(244, 239, 228, 0.45); padding: 4px 10px; }
.acts { display: flex; flex-wrap: wrap; gap: 10px; }
.btn { display: inline-flex; align-items: center; padding: 12px 16px; border: 2px solid currentColor; font-size: 15px; }
.fill { background: var(--apricot); border-color: var(--apricot); color: var(--ink); }
.ghost { background: transparent; }

.wrap { width: min(1060px, calc(100% - 40px)); margin: 0 auto; padding: 72px 0; }
.hall { background: var(--paper); }
.alt { background: #ebe3d4; }
.quiet { color: var(--mute); max-width: 44em; }

.drawer-wall {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 28px;
}
.cell {
  min-height: 72px;
  border: 2px solid var(--teak);
  background: #efe6d6;
  font-family: var(--mono);
  font-size: 14px;
}
.ok-cell { box-shadow: inset 0 8px 0 var(--green); }
.mid-cell { box-shadow: inset 0 8px 0 var(--apricot); }
.seal-cell { box-shadow: inset 0 8px 0 var(--indigo); color: var(--indigo); }
.cell.is-open { background: #fff; }
.cell-copy { background: #fff; padding: 18px; border: 1px solid rgba(92, 58, 36, 0.2); }
.cell-copy span { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; color: var(--indigo); }
.cell-copy ul { margin: 8px 0 0; padding-left: 1.1em; }

.folio { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; margin: 44px 0; }
.folio.rev figure { order: 2; }
.n { font-family: var(--mono); color: var(--indigo); letter-spacing: 0.12em; font-size: 12px; display: block; margin-bottom: 8px; }
figure { margin: 0; }
figure img { width: 100%; height: 270px; object-fit: cover; border: 1px solid rgba(92, 58, 36, 0.25); }
figcaption { margin-top: 8px; font-size: 13px; color: var(--mute); }

.seal-demo { margin-top: 16px; padding: 14px; background: #fff; border: 2px solid var(--teak); }
.seal-label { margin: 0 0 10px; font-family: var(--mono); font-size: 12px; color: var(--mute); }
.seal-row { display: grid; grid-template-columns: 40px 1fr 72px; gap: 10px; align-items: center; }
.seal-row input { width: 100%; accent-color: var(--indigo); }
.seal-row strong { font-family: var(--mono); font-size: 18px; }
.key-row { display: flex; gap: 10px; align-items: center; margin-top: 10px; }
.key-row input { width: 20px; height: 20px; accent-color: var(--indigo); }
.seal-state { margin: 10px 0 0; font-family: var(--mono); font-size: 14px; }
.seal-state.ok { color: var(--green); }
.seal-state.warn { color: var(--indigo); }

.mods { list-style: none; margin: 28px 0 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.mods li { background: #fff; padding: 18px; border-top: 10px solid var(--teak); }
.mods p { margin: 0; color: var(--mute); font-size: 14px; }

.vals { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 24px; }
.vals article { padding: 18px; background: #fff; }
.vals p { margin: 0; color: var(--mute); }

.laws { max-width: 46em; font-size: 17px; }
.io { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 18px; }
.io ul { margin: 0; padding-left: 1.1em; }

footer { background: var(--ink); color: #d8cbb8; }
.foot { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; padding-top: 24px; padding-bottom: 24px; }
footer .app-link { color: var(--apricot); }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .loft-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 12px 16px 18px;
    background: var(--paper);
  }
  .loft-links.open { display: flex; }
  .wrap { width: min(1060px, calc(100% - 24px)); padding: 48px 0; }
  .drawer-wall, .folio, .folio.rev, .mods, .vals, .io, .foot { grid-template-columns: 1fr; display: grid; }
  .folio.rev figure { order: 0; }
  h1 { font-size: 36px; }
  figure img { height: 200px; }
  .seal-row { grid-template-columns: 1fr; }
  .btn { min-height: 44px; }
}