:root {
  --paper: #f3efe6;
  --paper-2: #e7e0d2;
  --sheet: #fbf8f1;
  --ink: #15211b;
  --muted: #3a4941;
  --line: #d4cbb8;
  --green: #0b5a38;
  --green-ink: #08472d;
  --green-soft: #e5f3eb;
  --deep: #10241c;
  --deep-2: #1b3329;
  --amber: #6f4508;
  --amber-bg: #f8efd4;
  --red: #8a2c2c;
  --red-bg: #f8e7e4;
  --shadow: 0 18px 40px rgba(16, 36, 28, 0.08);
  --wrap: 1120px;
  --header: 4.25rem;
  color-scheme: light;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header) + 0.75rem); }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(900px 420px at 100% -10%, rgba(11, 90, 56, 0.08), transparent 55%),
    var(--paper);
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
}

img { max-width: 100%; height: auto; }

h1, h2, h3, .serif {
  font-family: "Palatino Linotype", Palatino, "Iowan Old Style", "Times New Roman", Times, "Liberation Serif", serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.12;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.4rem); margin: 0 0 0.7rem; }

h2 { font-size: clamp(1.7rem, 3vw, 2.35rem); margin: 0 0 0.8rem; }

h3 { font-size: 1.25rem; margin: 0 0 0.4rem; line-height: 1.3; }

p { margin: 0 0 0.9rem; }

a { color: var(--green-ink); }

a:hover { color: #063822; }

.skip {
  position: absolute;
  left: 0.75rem;
  top: -4rem;
  background: var(--sheet);
  color: var(--ink);
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  z-index: 30;
  font-weight: 700;
}

.skip:focus { top: 0.75rem; }

:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 3px;
}

.site-header :focus-visible { outline-color: #f3efe6; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.wrap { width: min(var(--wrap), calc(100% - 2rem)); margin: 0 auto; min-width: 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--deep);
  color: #f6f2e8;
  min-height: var(--header);
  border-bottom: 1px solid rgba(243, 239, 230, 0.12);
}

.header-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem 1rem;
  min-height: var(--header);
  flex-wrap: wrap;
  padding: 0.55rem 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: #f6f2e8;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 1.05rem;
  white-space: nowrap;
  flex: 0 0 auto;
}

.logo span { color: #9ddec0; }

.mark { display: block; flex: none; }

.nav-primary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.45rem;
  margin-left: auto;
  flex: 1 1 16rem;
  min-width: 0;
  justify-content: flex-end;
}

.nav-primary a,
.header-cta {
  color: #f6f2e8;
  text-decoration: none;
  font-size: 0.92rem;
  padding: 0.45rem 0.6rem;
  border-radius: 999px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

.nav-primary a:hover,
.header-cta:hover { background: var(--deep-2); color: #fff; }

.nav-primary a.header-cta {
  background: #e7f3ec;
  color: #10241c;
  font-weight: 700;
}

.nav-primary a.header-cta:hover { background: #fff; color: #10241c; }

.hero { padding: 2.2rem 0 1rem; }

.crumbs { margin: 0 0 1rem; }

.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.crumbs li:not(:last-child)::after { content: "/"; margin-left: 0.5rem; color: #8b8172; }

.kicker {
  margin: 0 0 0.7rem;
  color: var(--green-ink);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lede { font-size: 1.2rem; max-width: 42rem; color: var(--ink); }

.actions { display: flex; flex-wrap: wrap; gap: 0.65rem; margin: 1.1rem 0 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
  line-height: 1.2;
}

.btn-primary { background: var(--green); color: #f4fbf7; }

.btn-primary:hover { background: #08462c; color: #fff; }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: #b7ad9c;
}

.btn-ghost:hover { background: rgba(16, 36, 28, 0.05); color: var(--ink); }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}

.hero-grid > *,
.grid-2 > *,
.grid-3 > *,
.split > * { min-width: 0; }

.definition {
  margin-top: 1.6rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
}

.definition h2 { font-size: clamp(1.45rem, 2.4vw, 1.9rem); }

.sheet {
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.specimen { padding: 1rem 1rem 0.85rem; }

.specimen th,
.specimen td { white-space: nowrap; }

.specimen header { margin-bottom: 0.75rem; }

.specimen h2 {
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.25rem;
}

.specimen p { margin: 0; color: var(--muted); font-size: 0.92rem; }

.table-scroll { overflow-x: auto; max-width: 100%; }

@media (max-width: 700px) {
  .table-scroll table { min-width: 36rem; }
}

table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }

th, td {
  text-align: left;
  padding: 0.55rem 0.45rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th { color: var(--muted); font-weight: 600; font-size: 0.78rem; letter-spacing: 0.04em; text-transform: uppercase; }

.mono, td.num { font-family: ui-monospace, "Cascadia Mono", "Liberation Mono", monospace; font-size: 0.84rem; }

.ok { color: var(--green-ink); font-weight: 700; }

.bad { color: var(--red); font-weight: 700; }

.section { padding: 2.4rem 0; }

.section + .section { border-top: 1px solid var(--line); }

.idx {
  display: inline-block;
  margin-right: 0.45rem;
  color: var(--green);
  font-family: ui-monospace, "Cascadia Mono", "Liberation Mono", monospace;
  font-size: 0.72em;
  letter-spacing: 0;
  font-weight: 600;
}

.intro { max-width: 46rem; color: var(--ink); }

.grid-3, .grid-2 { display: grid; gap: 0.9rem; margin-top: 1.1rem; }

.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.card {
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.05rem 1.1rem 0.4rem;
}

.card h3 { font-family: "Segoe UI", system-ui, sans-serif; font-size: 1.05rem; letter-spacing: 0; }

.tag {
  display: inline-block;
  margin: 0 0 0.45rem;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green-ink);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.tag.warn { background: var(--amber-bg); color: var(--amber); }

.tag.quiet { background: var(--paper-2); color: var(--muted); }

.shots { display: grid; gap: 1.25rem; margin-top: 1.2rem; }

figure.shot {
  margin: 0;
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

figure.shot img { display: block; width: 100%; background: var(--deep); }

figcaption { padding: 0.85rem 1rem 1rem; color: var(--muted); font-size: 0.95rem; }

ol.steps, ul.clean { margin: 0.4rem 0 1rem; padding-left: 1.2rem; }

ol.steps li, ul.clean li { margin: 0 0 0.7rem; }

ol.steps li strong { font-family: "Palatino Linotype", Palatino, "Times New Roman", serif; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem 2rem; }

.note {
  background: var(--amber-bg);
  border: 1px solid #ead7a4;
  border-radius: 14px;
  padding: 0.9rem 1rem;
  color: #3f3116;
}

.note strong { color: var(--amber); }

.faq-list { display: grid; gap: 0.75rem; margin-top: 1rem; }

.faq-list article {
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.95rem 1.05rem 0.35rem;
}

.faq-list h3 { font-size: 1.12rem; }

.types { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.3rem 0 1rem; padding: 0; list-style: none; }

.types li {
  border: 1px solid var(--line);
  background: var(--sheet);
  border-radius: 999px;
  padding: 0.25rem 0.6rem;
  font-size: 0.88rem;
}

.cta-band {
  background: var(--deep);
  color: #f6f2e8;
  border-radius: 22px;
  padding: 1.5rem 1.4rem;
}

.cta-band h2 { color: #f6f2e8; }

.cta-band p { color: #d7e4dc; max-width: 40rem; }

.cta-band .btn-ghost { color: #f6f2e8; border-color: rgba(246, 242, 232, 0.35); }

.cta-band .btn-ghost:hover { background: rgba(255, 255, 255, 0.06); color: #fff; }

.site-footer {
  padding: 1.2rem 0 2.4rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer a { font-weight: 650; }

.foot-grid {
  display: flex;
  justify-content: space-between;
  gap: 1rem 2rem;
  flex-wrap: wrap;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.checker { padding-bottom: 3rem; }

.checker-form { padding: 1rem; display: grid; gap: 0.85rem; }

label { display: grid; gap: 0.3rem; font-weight: 700; font-size: 0.95rem; }

textarea, select {
  width: 100%;
  border: 1px solid #c9bfae;
  background: #fff;
  color: var(--ink);
  border-radius: 12px;
  padding: 0.7rem 0.75rem;
  font: 0.95rem/1.45 ui-monospace, "Cascadia Mono", "Liberation Mono", monospace;
}

select { font-family: "Segoe UI", system-ui, sans-serif; min-height: 44px; }

textarea { min-height: 9.5rem; resize: vertical; }

.summary { min-height: 1.4em; color: var(--muted); margin: 0; }

.checker-table td:nth-child(2) { white-space: nowrap; }

@media (max-width: 900px) {
  .hero-grid, .grid-3, .grid-2, .split { grid-template-columns: minmax(0, 1fr); }
  .nav-primary { margin-left: 0; width: 100%; }
}

@media (max-width: 640px) {
  .wrap { width: min(var(--wrap), calc(100% - 1.25rem)); }
  .actions .btn { width: 100%; }
  h1 { font-size: 2.35rem; }
}

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