/* Hallmark · macrostructure: Long Document (legal) + Letter (home) · tone: soft, utilitarian · anchor hue: brand blue 221
 * theme: custom (Locatube brand tokens, docs/superpowers/brand/locatube-brand.md) · paper light / display roman-sans / accent cool
 * nav: N1b-lite header · footer: Ft2 operator colophon */

@font-face {
  font-family: "Pretendard";
  src: url("/fonts/Pretendard-subset.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Nunito";
  src: url("/fonts/Nunito-Black-wordmark.woff2") format("woff2");
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light dark;

  /* brand */
  --color-blue: #2563eb;
  --color-yellow: #fbbf24;
  --color-blue-subtle: #dbeafe;

  /* roles, light */
  --color-bg: #ffffff;
  --color-surface: #f5f7fa;
  --color-ink: #252729;
  --color-ink-muted: #566170;       /* #6B7682 is 4.6:1 on white but 4.2:1 on surface; this one passes on both */
  --color-border: #dfe5eb;
  --color-link: #1d4ed8;            /* small blue text: 6.7:1 on white */
  --color-mark-blue: #2563eb;       /* wordmark only (large text) */
  --color-on-blue: #ffffff;
  --color-chip: #dbeafe;
  --color-chip-ink: #1d4ed8;
  --color-focus: #2563eb;
  --color-warn-bg: #fff7e0;
  --color-warn-ink: #7a4b00;

  --font-body: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Segoe UI", Roboto, "Noto Sans KR", sans-serif;
  --font-mark: "Nunito", "Pretendard", system-ui, sans-serif;

  --radius-s: 18px;
  --radius-m: 26px;
  --radius-l: 34px;
  --radius-pill: 999px;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;

  --text-s: 0.875rem;
  --text-m: 1rem;
  --text-l: 1.125rem;
  --text-xl: 1.5rem;
  --text-2xl: clamp(1.75rem, 1.2rem + 2.6vw, 2.75rem);

  --measure: 68ch;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #0f1011;
    --color-surface: #1c1c1e;
    --color-ink: #e8eaed;
    --color-ink-muted: #a3acb8;
    --color-border: #33383e;
    --color-link: #6b9bff;
    --color-mark-blue: #6b9bff;
    --color-chip: #1e3a8a;
    --color-chip-ink: #dbeafe;
    --color-focus: #6b9bff;
    --color-warn-bg: #3a2e0d;
    --color-warn-ink: #fbbf24;
  }
}

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

html, body { overflow-x: clip; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-m);
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: break-word;
  padding-inline: max(16px, env(safe-area-inset-left)) max(16px, env(safe-area-inset-right));
}
html:lang(en) body { word-break: normal; }

a { color: var(--color-link); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; border-radius: 6px; }

.skip {
  position: absolute; left: 16px; top: -100px; z-index: 10;
  background: var(--color-blue); color: var(--color-on-blue);
  padding: 10px 18px; border-radius: var(--radius-pill); text-decoration: none; font-weight: 600;
}
.skip:focus { top: 12px; }

/* header */
.site-head {
  max-width: 960px; margin: 0 auto; padding: var(--space-md) 0;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-sm) var(--space-md);
}
.wordmark {
  font-family: var(--font-mark); font-weight: 900; font-size: 1.75rem; letter-spacing: -0.03em; line-height: 1;
  text-decoration: none; color: var(--color-ink); white-space: nowrap; display: inline-flex; align-items: baseline;
  min-height: 44px; align-items: center;
}
.wordmark .loca { color: var(--color-mark-blue); }
.wordmark .dot {
  display: inline-block; width: 0.2em; height: 0.2em; margin-left: 0.06em; border-radius: 50%;
  background: var(--color-yellow); align-self: flex-end; margin-bottom: 0.52em;
}
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: var(--space-xs) var(--space-sm); align-items: center; }
.site-nav a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px; white-space: nowrap;
  color: var(--color-ink); text-decoration: none; border-radius: var(--radius-pill); font-size: var(--text-s); font-weight: 600;
}
.site-nav a:hover { background: var(--color-surface); }
.site-nav a[aria-current="page"] { background: var(--color-chip); color: var(--color-chip-ink); }
.site-nav a.lang { border: 1px solid var(--color-border); }

main { max-width: 960px; margin: 0 auto; padding: var(--space-lg) 0 var(--space-2xl); }

/* home */
.hero { display: grid; gap: var(--space-lg); padding: var(--space-xl) 0 var(--space-lg); }
.hero .app-icon { width: 96px; height: 96px; border-radius: 26px; box-shadow: 0 1px 0 var(--color-border), 0 8px 24px rgba(37, 99, 235, 0.18); }
.hero h1 { margin: 0; font-size: var(--text-2xl); line-height: 1.2; letter-spacing: -0.02em; font-weight: 700; max-width: 18em; overflow-wrap: anywhere; }
.hero p { margin: 0; font-size: var(--text-l); max-width: 36em; color: var(--color-ink); }
.hero .note { font-size: var(--text-s); color: var(--color-ink-muted); }
.trail { width: 100%; max-width: 560px; height: auto; color: var(--color-blue); margin-top: var(--space-md); }
.pill-row { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin: var(--space-sm) 0 0; padding: 0; list-style: none; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px; white-space: nowrap;
  border-radius: var(--radius-pill); font-weight: 700; text-decoration: none; font-size: var(--text-m);
  border: 1.5px solid var(--color-border); color: var(--color-ink); background: var(--color-bg);
}
.btn:hover { background: var(--color-surface); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--color-blue); border-color: var(--color-blue); color: var(--color-on-blue); }
.btn.primary:hover { background: #1d4ed8; }
[hidden] { display: none !important; }

.cards { display: grid; gap: var(--space-md); grid-template-columns: minmax(0, 1fr); margin-top: var(--space-xl); }
.card { background: var(--color-surface); border-radius: var(--radius-m); padding: var(--space-lg); }
.card h2 { margin: 0 0 var(--space-sm); font-size: var(--text-l); line-height: 1.3; }
.card p { margin: 0; color: var(--color-ink-muted); }

/* legal documents */
.doc { max-width: var(--measure); }
.doc h1 { font-size: var(--text-2xl); line-height: 1.2; letter-spacing: -0.02em; margin: var(--space-lg) 0 var(--space-sm); overflow-wrap: anywhere; }
.doc .meta { color: var(--color-ink-muted); font-size: var(--text-s); margin: 0 0 var(--space-lg); }
.doc h2 { font-size: var(--text-xl); line-height: 1.3; margin: var(--space-xl) 0 var(--space-sm); letter-spacing: -0.01em; scroll-margin-top: 16px; }
.doc h3 { font-size: var(--text-l); margin: var(--space-lg) 0 var(--space-xs); line-height: 1.4; }
.doc p, .doc li, .doc dd { margin: 0 0 var(--space-sm); }
.doc ul, .doc ol { padding-left: 1.3em; margin: 0 0 var(--space-md); }
.doc li { margin-bottom: var(--space-xs); }
.doc dl { margin: 0; }
.doc dt { font-weight: 700; margin-top: var(--space-md); }
.doc dd { margin-left: 0; color: var(--color-ink); }
.toc { background: var(--color-surface); border-radius: var(--radius-m); padding: var(--space-md) var(--space-lg); margin: var(--space-lg) 0; }
.toc h2 { font-size: var(--text-m); margin: 0 0 var(--space-xs); }
.toc ol { margin: 0; padding-left: 1.4em; columns: 1; }
.toc a { display: inline-block; padding: 4px 0; }
.callout { background: var(--color-chip); color: var(--color-chip-ink); border-radius: var(--radius-s); padding: var(--space-md) var(--space-lg); margin: var(--space-md) 0; }
.callout p:last-child { margin-bottom: 0; }
.callout a { color: inherit; font-weight: 600; }
.todo { background: var(--color-warn-bg); color: var(--color-warn-ink); border-radius: var(--radius-s); padding: var(--space-sm) var(--space-md); font-size: var(--text-s); }
.tbl { width: 100%; border-collapse: collapse; margin: var(--space-md) 0; font-size: var(--text-s); line-height: 1.55; }
.tbl th, .tbl td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--color-border); }
.tbl th { background: var(--color-surface); font-weight: 700; }
.doc code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 0.92em; background: var(--color-surface); padding: 1px 6px; border-radius: 8px; }
@media (max-width: 719px) {
  .tbl, .tbl tbody, .tbl tr, .tbl td { display: block; width: 100%; }
  .tbl thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .tbl tr { background: var(--color-surface); border-radius: var(--radius-s); padding: var(--space-sm) var(--space-md); margin-bottom: var(--space-md); }
  .tbl td { border: 0; padding: 6px 0; }
  .tbl td::before { content: attr(data-label); display: block; font-weight: 700; color: var(--color-ink-muted); font-size: 0.8125rem; }
}
@media (min-width: 720px) {
  .cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero { grid-template-columns: minmax(0, 1fr); padding-top: var(--space-2xl); }
  .toc ol { columns: 2; column-gap: var(--space-xl); }
}

/* footer */
.site-foot { max-width: 960px; margin: 0 auto; padding: var(--space-xl) 0 calc(var(--space-xl) + env(safe-area-inset-bottom)); border-top: 1px solid var(--color-border); font-size: var(--text-s); color: var(--color-ink-muted); }
.site-foot nav ul { list-style: none; margin: 0 0 var(--space-md); padding: 0; display: flex; flex-wrap: wrap; gap: 0 var(--space-md); }
.site-foot nav a { display: inline-flex; align-items: center; min-height: 44px; white-space: nowrap; }
.site-foot dl { display: grid; grid-template-columns: minmax(0, max-content) minmax(0, 1fr); gap: 2px var(--space-md); margin: 0 0 var(--space-md); }
.site-foot dt { font-weight: 600; }
.site-foot dd { margin: 0; overflow-wrap: anywhere; }
.site-foot p { margin: 0 0 var(--space-xs); }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }
@media print { .skip, .site-nav, .toc { display: none; } body { padding: 0; } }