:root {
  --ink: #172033;
  --ink-soft: #3d4a5c;
  --water: #0d5c63;
  --water-deep: #08383d;
  --sand: #f4f0e8;
  --paper: #fffcf7;
  --line: #e3dcd0;
  --copper: #9a4520;
  --copper-dark: #7c3518;
  --ok: #1f6b45;
  --header-bg: rgba(255, 252, 247, 0.94);
  --input-bg: #fff;
  --input-border: #d5cec3;
  --surface: #fff;
  --muted-surface: #f7f4ee;
  --price-bg: #f3f7f4;
  --error-bg: #fff4f0;
  --error: #8a2e16;
  --field-error: #9a2b2b;
  --shadow: 0 16px 36px rgba(23, 32, 51, 0.08);
  --footer-bg: #172033;
  --footer-text: #d5dbe4;
  --footer-fine: #9aa6b5;
  --footer-strong: #fff;
  color-scheme: light;
}

html[data-theme="dark"] {
  --ink: #f3efe6;
  --ink-soft: #c9c3b6;
  --water: #8fd4cf;
  --water-deep: #d5f4f1;
  --sand: #12181c;
  --paper: #1c242b;
  --line: #33424c;
  --ok: #8ed4ab;
  --header-bg: rgba(18, 24, 28, 0.92);
  --input-bg: #12181c;
  --input-border: #42525e;
  --surface: #24303a;
  --muted-surface: #182026;
  --price-bg: #16302c;
  --error-bg: #3a221c;
  --error: #f3c2b0;
  --field-error: #f0b0a8;
  --shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
  --footer-bg: #0c1114;
  --footer-text: #c9c3b6;
  --footer-fine: #8e99a6;
  --footer-strong: #f3efe6;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.public-site {
  margin: 0;
  color: var(--ink);
  background: var(--sand);
  font-family: "Outfit", "Segoe UI", sans-serif;
  font-size: 1.05rem;
  line-height: 1.55;
}

a { color: var(--water); }
a:hover { color: var(--water-deep); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.site-header-inner,
.site-wrap {
  width: min(1080px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  text-decoration: none;
  font-family: "Fraunces", Georgia, serif;
  font-weight: 620;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 36px;
  height: 36px;
  flex: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.15rem;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 560;
}

.site-nav a[aria-current="page"] { color: var(--ink); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.7rem 1.15rem;
  text-decoration: none;
  font-weight: 640;
  border: 1px solid transparent;
  cursor: pointer;
  font: inherit;
}

.btn-copper {
  background: var(--copper);
  color: #fff !important;
}
.btn-copper:hover { background: var(--copper-dark); color: #fff !important; }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { background: var(--muted-surface); }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  padding: 0;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}
.theme-toggle:hover { background: var(--muted-surface); }
.theme-toggle:focus-visible,
.code-row input:focus-visible,
.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible {
  outline: 2px solid var(--water);
  outline-offset: 2px;
}
.theme-toggle svg { width: 1.15rem; height: 1.15rem; display: block; }
.theme-toggle .icon-sun { display: none; }
html[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
html[data-theme="dark"] .theme-toggle .icon-sun { display: block; }

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
  padding: 3.5rem 0 2.5rem;
}

.eyebrow {
  color: var(--water);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 0.7rem;
}

h1, h2, h3 {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 560;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

h1 { font-size: clamp(2.4rem, 5vw, 4.1rem); margin: 0 0 1rem; }
h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin: 0 0 0.8rem; }
h3 { font-size: 1.25rem; margin: 0 0 0.4rem; }

.lede { font-size: 1.15rem; color: var(--ink-soft); margin: 0 0 1.4rem; max-width: 38rem; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; }

.letter-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 1.4rem 1.3rem 1.3rem;
  box-shadow: var(--shadow);
}
.letter-card h2 { font-size: 1.85rem; }
.letter-card p { color: var(--ink-soft); margin-top: 0; }
.letter-card label { display: block; font-size: 0.86rem; font-weight: 650; margin-bottom: 0.35rem; }
.code-row { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.code-row input {
  flex: 1 1 8rem;
  min-width: 0;
  font: inherit;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid var(--input-border);
  border-radius: 12px;
  padding: 0.75rem 0.85rem;
  background: var(--input-bg);
  color: var(--ink);
}
.lookup-error {
  background: var(--error-bg);
  color: var(--error);
  border-radius: 12px;
  padding: 0.7rem 0.85rem;
  margin: 0 0 1rem;
}
.assembly-panel { position: relative; margin: 0 0 1rem; }
.assembly-scroll {
  max-height: 24rem;
  overflow-y: auto;
  scrollbar-color: var(--water) transparent;
}
.assembly-panel.has-more .assembly-scroll {
  box-shadow: inset 0 -52px 36px -30px var(--paper);
}
.assembly-more {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  width: 100%;
  margin-top: 0.7rem;
  padding: 0.75rem 1rem;
  border: 1px dashed var(--water);
  border-radius: 12px;
  background: color-mix(in srgb, var(--water) 14%, var(--paper));
  color: var(--water);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.assembly-more::after { content: "↓"; }
.assembly-more[hidden] { display: none; }
.assembly-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin: 0;
}
.assembly-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.85rem 1rem;
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0.9rem 1rem;
  cursor: pointer;
}
.assembly-item:has(input:checked) {
  border-color: var(--water);
  background: color-mix(in srgb, var(--water) 10%, var(--surface));
}
.assembly-item:has(input:focus-visible) {
  outline: 2px solid var(--water);
  outline-offset: 2px;
}
.assembly-item.is-booked,
.assembly-item:has(input:disabled) {
  cursor: default;
  background: var(--muted-surface);
}
.assembly-item input {
  width: 1.15rem;
  height: 1.15rem;
  margin: 0.2rem 0 0;
  accent-color: var(--copper);
}
.asm-body { display: flex; flex-direction: column; gap: 0.35rem; min-width: 0; }
.asm-title {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem 0.55rem;
  color: var(--ink);
}
.assembly-item .asm-title strong {
  color: var(--ink);
  font-size: 1.08rem;
  letter-spacing: 0.01em;
}
.asm-type {
  display: inline-flex;
  align-items: center;
  padding: 0.05rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink-soft);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.asm-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  color: var(--ink-soft);
  font-size: 0.92rem;
}
.asm-meta span + span::before {
  content: "·";
  margin: 0 0.45rem;
  color: var(--ink-soft);
}
.assembly-item .asm-aside {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.05rem;
  min-width: 4.75rem;
  padding-top: 0.05rem;
  text-align: right;
}
.asm-minutes {
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.15;
}
.asm-caption,
.asm-status,
.assembly-item .asm-price {
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 550;
}
.asm-status { font-size: 0.85rem; max-width: 8rem; }
.test-estimate {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 0 0 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
}
.test-estimate strong {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.7rem;
  font-weight: 560;
  color: var(--ink);
}
.estimate-label { display: block; color: var(--ink-soft); font-size: 0.86rem; }
#test-time-detail { margin: 0.15rem 0 0; color: var(--ink-soft); font-size: 0.92rem; }
.price-box {
  background: var(--price-bg);
  border-radius: 14px;
  padding: 0.9rem 1rem;
  margin: 0.4rem 0 1rem;
}
.price-box strong { font-size: 1.35rem; }
.price-box .estimate-label { margin-bottom: 0.1rem; }
.price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem 2rem;
}
.price-note {
  margin: 0;
  max-width: 34rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.45;
  text-align: right;
}
.booked-total { font-family: "Fraunces", Georgia, serif; font-size: 2rem; margin: 0.2rem 0 0; }

.hero-card {
  background: var(--water-deep);
  color: #f4f7f6;
  border-radius: 22px;
  padding: 1.5rem 1.4rem 1.2rem;
  box-shadow: 0 18px 40px rgba(8, 56, 61, 0.18);
}

.hero-card ol { margin: 0.4rem 0 0; padding: 0; list-style: none; }
.hero-card li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  padding: 0.85rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}
.hero-card strong { display: block; }
.hero-card span { color: #c9ddd9; font-size: 0.92rem; }
.step-no {
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #d7efe8;
  color: var(--water-deep);
  font-weight: 700;
  font-size: 0.85rem;
}

.band {
  background: var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.band-inner, .section { width: min(1080px, calc(100% - 2rem)); margin: 0 auto; }
.section { padding: 3.2rem 0; }
.band-inner { padding: 1.3rem 0; }

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.facts div { color: var(--ink-soft); }
.facts strong { display: block; color: var(--ink); font-size: 1rem; }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.2rem 1.15rem 1.3rem;
}
.card p { margin: 0; color: var(--ink-soft); }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.area-panel {
  background: var(--surface);
  border-radius: 18px;
  border: 1px solid var(--line);
  padding: 1.3rem 1.2rem;
}
.area-panel p { margin: 0.3rem 0 0; color: var(--ink-soft); }

.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 2.2rem 0 1.6rem;
}
.site-footer a { color: var(--footer-strong); }
.footer-grid {
  width: min(1080px, calc(100% - 2rem));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1.5rem;
}
.footer-label { color: var(--footer-strong); }
.footer-name {
  font-family: "Fraunces", Georgia, serif;
  color: var(--footer-strong);
  font-size: 1.3rem;
  margin: 0 0 0.4rem;
}
.fine {
  width: min(1080px, calc(100% - 2rem));
  margin: 1.4rem auto 0;
  padding-top: 0.9rem;
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 0.82rem;
  color: var(--footer-fine);
}

.page-hero { padding: 2.6rem 0 0.4rem; }
.page-hero p { color: var(--ink-soft); max-width: 40rem; }

.form-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1.3rem;
  margin: 1rem 0 3rem;
}
.form-card h2 { margin-bottom: 0.25rem; }
.assembly-lead { margin: 0 0 1rem; color: var(--ink-soft); }
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem 1rem;
}
.field { display: flex; flex-direction: column; gap: 0.3rem; }
.field.wide { grid-column: 1 / -1; }
.field label { font-size: 0.86rem; font-weight: 650; }
.field input, .field select, .field textarea {
  font: inherit;
  color: var(--ink);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 10px;
  padding: 0.65rem 0.75rem;
}
.field textarea { min-height: 110px; resize: vertical; }
.field .error { color: var(--field-error); font-size: 0.82rem; }
.hp {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.thanks {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 1.6rem 1.3rem;
  margin: 1rem 0 3rem;
  max-width: 40rem;
}
.thanks strong { color: var(--ok); }

.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { padding: 0.35rem 0; }

@media (max-width: 800px) {
  .hero, .cards, .facts, .split, .footer-grid, .form-grid { grid-template-columns: 1fr; }
  .assembly-list { grid-template-columns: 1fr; }
  .price-row { flex-direction: column; align-items: flex-start; }
  .price-note { max-width: none; text-align: left; }
  .assembly-item { grid-template-columns: auto minmax(0, 1fr); }
  .assembly-item .asm-aside {
    grid-column: 2;
    flex-direction: row;
    align-items: baseline;
    gap: 0.45rem;
    min-width: 0;
    text-align: left;
  }
  .field.wide { grid-column: auto; }
  .site-header-inner { align-items: flex-start; flex-direction: column; padding: 0.8rem 0; }
  .hero { padding-top: 2rem; }
}