:root {
  --paper: #f3eee4;
  --paper-2: #ebe4d6;
  --ink: #1c1917;
  --muted: #57534e;
  --line: #d6cbb8;
  --accent: #c2410c;
  --accent-ink: #9a3412;
  --ok: #3f6212;
  --card: #fffdf8;
  --shadow: 0 1px 0 #d6cbb8;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "Source Sans 3", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.5;
}

a { color: var(--accent-ink); }
a:hover { color: var(--accent); }

.wrap { width: min(1080px, calc(100% - 32px)); margin: 0 auto; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}
.logo {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 22px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.logo span { color: var(--accent); }
nav { display: flex; flex-wrap: wrap; gap: 8px 16px; }
nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
}
nav a[aria-current="page"], nav a:hover { color: var(--ink); }

.hero { padding: 36px 0 12px; }
.kicker {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 8px;
}
h1 {
  font-family: var(--serif);
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.15;
  margin: 0 0 10px;
  letter-spacing: -0.03em;
}
.lede { color: var(--muted); max-width: 40rem; margin: 0 0 24px; }

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 20px;
}
.panel + .panel { margin-top: 16px; }

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 16px 0 40px;
}
.tool-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  padding: 16px;
  text-decoration: none;
  color: inherit;
}
.tool-card:hover { border-color: var(--ink); }
.tool-card h2 { font-size: 18px; margin: 0 0 6px; font-family: var(--serif); }
.tool-card p { margin: 0; color: var(--muted); font-size: 15px; }

.form-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
label { display: block; font-size: 13px; font-weight: 700; color: var(--muted); margin-bottom: 4px; }
input, select, button {
  font: inherit;
  width: 100%;
}
input, select {
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 10px 12px;
}
input:focus, select:focus { outline: 2px solid var(--ink); outline-offset: 1px; }

.results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
}
.result {
  background: var(--paper-2);
  padding: 12px 14px;
}
.result .label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.result .value {
  font-family: var(--mono);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.04em;
  margin-top: 2px;
}
.result.primary { background: var(--ink); color: var(--paper); }
.result.primary .label { color: #d6d3d1; }

.note { font-size: 14px; color: var(--muted); margin: 12px 0 0; min-height: 1.4em; }
.note.warn { color: var(--accent); }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 0; }
.chip {
  width: auto;
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 6px 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.chip:hover { border-color: var(--ink); }

.rate-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }

.prose { max-width: 42rem; }
.prose h2 { font-family: var(--serif); margin: 28px 0 8px; }
.prose p, .prose li { color: #44403c; }
.faq details { border-top: 1px solid var(--line); padding: 12px 0; }
.faq summary { cursor: pointer; font-weight: 700; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  background: var(--card);
}
th, td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; background: var(--paper-2); }
td input { background: #fff; }

.week-total {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 20px;
}

.site-footer {
  margin-top: 56px;
  border-top: 1px solid var(--line);
  padding: 24px 0 40px;
  color: var(--muted);
  font-size: 14px;
}
.site-footer nav { margin-bottom: 8px; }

@media (max-width: 720px) {
  .form-row, .results, .rate-row { grid-template-columns: 1fr; }
  nav { justify-content: flex-end; }
  .result .value { font-size: 24px; }
}

@media print {
  .site-header, .site-footer, .chips, .kicker, nav { display: none !important; }
  body { background: #fff; }
  .panel { box-shadow: none; }
}