:root {
  --paper: oklch(0.94 0.024 85);
  --paper-2: oklch(0.9 0.03 78);
  --ink: oklch(0.24 0.028 250);
  --ink-soft: oklch(0.38 0.03 250);
  --sky: oklch(0.48 0.07 232);
  --sky-deep: oklch(0.36 0.06 240);
  --deel: oklch(0.46 0.13 32);
  --deel-hot: oklch(0.42 0.14 28);
  --line: oklch(0.24 0.028 250 / 0.16);
  --serif: "Alegreya", "Noto Serif", serif;
  --sans: "Alegreya Sans", "Noto Sans", sans-serif;
  --max: 72rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.125rem;
  line-height: 1.55;
  background-image:
    radial-gradient(oklch(0.24 0.03 80 / 0.035) 0.6px, transparent 0.7px);
  background-size: 7px 7px;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

html[lang="mn"] [data-i="fr"],
html[lang="fr"] [data-i="mn"] { display: none; }

/* nav */
.nav {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0 0.85rem;
  border-bottom: 1px solid var(--line);
}
.brand {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.brand small {
  display: block;
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sky-deep);
  margin-top: 0.1rem;
}
.nav-end { display: flex; align-items: center; gap: 0.75rem; }
.lang {
  display: flex;
  border: 1.5px solid var(--ink);
}
.lang button {
  background: transparent;
  border: 0;
  padding: 0.38rem 0.7rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.lang button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}

/* hero */
.hero {
  position: relative;
  min-height: min(58vh, 34rem);
  display: grid;
  grid-template-rows: 1fr auto;
  color: oklch(0.96 0.02 85);
  isolation: isolate;
}
.hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(to top, oklch(0.16 0.03 250 / 0.88) 0%, oklch(0.2 0.03 250 / 0.25) 48%, oklch(0.3 0.04 230 / 0.2) 100%);
}
.hero-copy {
  width: min(100% - 2rem, 46rem);
  margin: 0 auto 2rem;
  padding-top: 8vh;
}
.kicker {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
  color: oklch(0.84 0.04 85);
  margin: 0 0 0.8rem;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.85rem, 4.6vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 0.85rem;
  text-wrap: balance;
}
.lede {
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  max-width: 38rem;
  color: oklch(0.9 0.02 85);
  margin: 0 0 1.4rem;
}
.actions { display: flex; flex-wrap: wrap; gap: 0.6rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border: 1px solid transparent;
  padding: 0.7rem 1.15rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  background: var(--deel);
  color: oklch(0.97 0.02 85);
}
.btn:hover { background: var(--deel-hot); }
.btn-ghost {
  background: transparent;
  border-color: oklch(0.96 0.02 85 / 0.55);
  color: oklch(0.96 0.02 85);
}
.btn-ghost:hover { background: oklch(0.96 0.02 85 / 0.1); }
.btn-ink {
  background: var(--ink);
  color: var(--paper);
}
.btn-ink:hover { background: var(--sky-deep); }
.btn-line {
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
}
.btn-line:hover { background: var(--ink); color: var(--paper); }

/* trust */
.trust {
  background: var(--sky-deep);
  color: oklch(0.93 0.02 85);
  padding: 0.85rem 0;
}
.trust p {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* doors */
.doors { padding: 2.4rem 0 1.2rem; }
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 18rem) minmax(0, 1fr);
  gap: 1.5rem 2.5rem;
  margin-bottom: 1.2rem;
  align-items: end;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 0.7rem;
}
.section-head h2 {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin: 0;
  letter-spacing: -0.03em;
  line-height: 1;
}
.section-head p { margin: 0; color: var(--ink-soft); max-width: 36rem; }

.door-list { display: flex; flex-direction: column; }
.door-row {
  display: grid;
  grid-template-columns: 4.2rem minmax(0, 1fr) auto;
  gap: 0.6rem 1.2rem;
  align-items: baseline;
  padding: 0.8rem 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  text-align: left;
  width: 100%;
  cursor: pointer;
  color: inherit;
}
.door-row:hover .door-name,
.door-row[aria-pressed="true"] .door-name { color: var(--sky-deep); }
.door-row[aria-pressed="true"] {
  background: var(--paper-2);
  border-bottom-color: transparent;
}
.door-n {
  font-family: var(--serif);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--sky);
  letter-spacing: -0.04em;
}
.door-name {
  display: block;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.2vw, 1.7rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.door-blurb {
  display: block;
  margin: 0.12rem 0 0;
  color: var(--ink-soft);
  font-size: 0.98rem;
  font-weight: 400;
}
.door-pct {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--sky-deep);
  white-space: nowrap;
}

.door-panel {
  margin: 0 0 0.35rem;
  padding: 0 0 1.15rem 5.4rem;
  background: var(--paper-2);
}
.door-panel .example { margin-top: 0; padding-top: 0; border-top: 0; }
.door-panel[hidden] { display: none; }
.door-panel h3 {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  margin: 0 0 0.4rem;
  letter-spacing: -0.03em;
}
.n-lg {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sky);
  font-weight: 700;
  font-family: var(--sans);
  margin-bottom: 0.35rem;
}
.example {
  margin: 0.85rem 0 0;
  padding: 0.75rem 0 0;
  border-top: 1px solid var(--line);
  font-style: italic;
  font-family: var(--serif);
  color: var(--ink-soft);
}
.pair {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

/* board */
.board { padding: 2.2rem 0 2.2rem; }
.board-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.4rem;
}
.board-label {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--sky-deep);
}
.all-btn {
  background: transparent;
  border: 1px solid var(--ink);
  padding: 0.28rem 0.7rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 700;
}
.all-btn[hidden] { display: none; }
.ads {
  display: flex;
  flex-direction: column;
  margin-top: 0.3rem;
}
.ad {
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr);
  gap: 0.8rem 1.2rem;
}
.ad-meta {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--sky-deep);
}
.ad-meta span {
  display: block;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-soft);
  margin-top: 0.25rem;
}
.ad p { margin: 0; }
.ad-contact { margin-top: 0.4rem; font-size: 0.95rem; }
.ad-empty { color: var(--ink-soft); padding: 1rem 0; }

/* why */
.why { padding: 0 0 2.6rem; }
.why h2 {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
  margin: 0 0 1rem;
  letter-spacing: -0.03em;
}
.why-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
  max-width: 44rem;
}
.why-list li { padding-left: 0; }
.why-list strong { font-weight: 700; }

/* form */
.poster {
  background: var(--ink);
  color: var(--paper);
  padding: 2.8rem 0 3.2rem;
}
.poster h2 { color: var(--paper); }
.poster .section-head { border-bottom-color: oklch(0.94 0.02 85 / 0.25); }
.poster .section-head p { color: oklch(0.86 0.02 85); }
.poster-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(16rem, 0.8fr);
  gap: 2rem 2.5rem;
  align-items: start;
}
.form {
  display: grid;
  gap: 1.15rem;
  margin-top: 0.5rem;
}
fieldset {
  border: 1px solid oklch(0.94 0.02 85 / 0.18);
  margin: 0;
  padding: 0.9rem 0.95rem 1rem;
  display: grid;
  gap: 0.75rem;
}
legend {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0 0.35rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.step-n {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem;
  height: 1.35rem;
  background: var(--deel);
  color: oklch(0.97 0.02 85);
  font-size: 0.8rem;
  font-weight: 700;
}
label { display: grid; gap: 0.3rem; font-size: 0.92rem; }
label span { font-weight: 700; letter-spacing: 0.04em; font-size: 0.78rem; text-transform: uppercase; }
input, select, textarea {
  background: oklch(0.97 0.015 85);
  color: var(--ink);
  border: 0;
  padding: 0.65rem 0.75rem;
  width: 100%;
}
textarea { min-height: 7rem; resize: vertical; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.85rem; }
.form-hint {
  margin: 0;
  font-size: 0.9rem;
  color: oklch(0.82 0.02 85);
}
.form-msg { min-height: 1.3rem; font-size: 0.95rem; margin: 0; }
.form-msg.ok { color: oklch(0.86 0.08 145); }
.form-msg.err { color: oklch(0.78 0.12 30); }

.preview {
  background: oklch(0.97 0.015 85);
  color: var(--ink);
  padding: 1.1rem 1.15rem 1.2rem;
  position: sticky;
  top: 1rem;
}
.preview-label {
  margin: 0 0 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sky-deep);
}
.preview .ad {
  border-bottom: 0;
  padding: 0.4rem 0 0;
  grid-template-columns: 1fr;
}
.preview .ad-empty { margin: 0; }

/* footer */
.foot {
  padding: 1.4rem 0 2rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.dock { display: none; }

@media (max-width: 900px) {
  .poster-grid { grid-template-columns: 1fr; }
  .preview { position: static; }
}

@media (max-width: 760px) {
  .section-head,
  .ad { grid-template-columns: 1fr; }
  .door-row { grid-template-columns: 2.6rem minmax(0, 1fr); }
  .door-pct { grid-column: 2; }
  .door-panel { padding-left: 2.6rem; }
  .hero { min-height: 26rem; }
  .hero-copy { padding-top: 2.2rem; }
  .row-2 { grid-template-columns: 1fr; }
  .nav-post { display: none; }
  .dock {
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 30;
    background: var(--paper);
    border-top: 1px solid var(--line);
    padding: 0.55rem 0.75rem calc(0.55rem + env(safe-area-inset-bottom));
    gap: 0.45rem;
  }
  .dock .btn { width: 100%; }
  body { padding-bottom: 4.8rem; }
}