:root {
  --brand: #0b7c4f;
  --brand-2: #42b488;
  --bg: #ffffff;
  --bg-soft: #f5f8f6;
  --surface: #ffffff;
  --text: #16201b;
  --text-soft: #4b5a53;
  --muted: #74827b;
  --border: #e3e9e6;
  --link: #0b7c4f;
  --radius: 14px;
  --maxw: 1120px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1412;
    --bg-soft: #131b18;
    --surface: #161f1b;
    --text: #e8efeb;
    --text-soft: #b5c2bb;
    --muted: #8a9a92;
    --border: #25312c;
    --link: #5ccb9b;
    color-scheme: dark;
  }
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* Header */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 18px; letter-spacing: -0.01em;
  color: var(--text); text-decoration: none;
}
.brand::before {
  content: ""; width: 32px; height: 32px; border-radius: 9px;
  background: url("/assets/logo.png") center / cover no-repeat, var(--brand);
}
.topnav { display: flex; gap: 6px; }
.topnav a {
  color: var(--text-soft); text-decoration: none; font-size: 15px; font-weight: 500;
  padding: 8px 12px; border-radius: 999px;
}
.topnav a:hover { background: var(--bg-soft); color: var(--text); }
.topnav a[aria-current="page"] { color: var(--brand); background: color-mix(in srgb, var(--brand) 10%, transparent); }

/* Document */
.doc { padding-top: 48px; padding-bottom: 72px; }
.doc-head { padding-bottom: 32px; margin-bottom: 40px; border-bottom: 1px solid var(--border); }
.eyebrow {
  margin: 0 0 8px; font-size: 13px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--brand-2);
}
h1 { margin: 0; font-size: clamp(32px, 5vw, 44px); line-height: 1.15; letter-spacing: -0.025em; }
.meta { margin: 12px 0 0; color: var(--muted); font-size: 15px; }

.layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 56px; align-items: start; }

.toc { position: sticky; top: 88px; max-height: calc(100vh - 110px); overflow: auto; }
.toc-title { margin: 0 0 10px; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.toc ol { list-style: none; margin: 0; padding: 0; counter-reset: toc; }
.toc li { counter-increment: toc; }
.toc a {
  display: flex; gap: 8px; padding: 5px 10px; margin-left: -10px; border-radius: 8px;
  font-size: 14px; line-height: 1.45; color: var(--text-soft); text-decoration: none;
}
.toc a::before { content: counter(toc) "."; color: var(--muted); min-width: 20px; font-variant-numeric: tabular-nums; }
.toc a:hover { background: var(--bg-soft); color: var(--text); }

.content { max-width: 760px; }
.content section + section { margin-top: 44px; }
h2 { margin: 0 0 14px; font-size: 22px; line-height: 1.3; letter-spacing: -0.015em; }
h3 { margin: 26px 0 10px; font-size: 17px; line-height: 1.4; }
p { margin: 0 0 14px; color: var(--text-soft); }
strong { color: var(--text); font-weight: 600; }
ul { margin: 0 0 14px; padding-left: 22px; color: var(--text-soft); }
li { margin: 0 0 8px; }
li::marker { color: var(--brand-2); }

.caps { font-size: 15px; }

.note {
  padding: 14px 16px; border-radius: 10px; font-size: 15px;
  background: var(--bg-soft); border-left: 3px solid var(--brand-2);
}

.table-wrap { overflow-x: auto; margin: 6px 0 16px; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 12px 16px; vertical-align: top; border-bottom: 1px solid var(--border); }
th { background: var(--bg-soft); font-weight: 600; color: var(--text); font-size: 14px; }
td { color: var(--text-soft); }
td:first-child { color: var(--text); font-weight: 500; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }

.contact-card {
  padding: 18px 20px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-soft);
}
.contact-card p { margin: 0 0 4px; }
.contact-card p:last-child { margin: 0; }
.contact-name { font-weight: 700; color: var(--text) !important; }

/* Footer */
.footer { border-top: 1px solid var(--border); background: var(--bg-soft); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; justify-content: space-between; padding-top: 24px; padding-bottom: 24px; }
.footer p { margin: 0; font-size: 14px; color: var(--muted); }
.footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.footer nav a { font-size: 14px; color: var(--text-soft); text-decoration: none; }
.footer nav a:hover { color: var(--brand); }

/* Responsive */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; gap: 28px; }
  .toc {
    position: static; max-height: none;
    padding: 16px 18px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-soft);
  }
  .toc ol { columns: 2; column-gap: 20px; }
  .toc li { break-inside: avoid; }
}

@media (max-width: 560px) {
  body { font-size: 15.5px; }
  .wrap { padding: 0 16px; }
  .topbar-inner { height: 56px; }
  .doc { padding-top: 32px; padding-bottom: 56px; }
  .doc-head { padding-bottom: 24px; margin-bottom: 28px; }
  .toc ol { columns: 1; }
  h2 { font-size: 20px; }
  th, td { padding: 10px 12px; }
  td:first-child { white-space: normal; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media print {
  .topbar, .toc, .footer { display: none; }
  .layout { display: block; }
  body { background: #fff; color: #000; }
}