/* MileagePayTools — payroll/SMB calculator hub (YMYL)
   Brand: slate + teal. */
:root {
  --ink: #0f1c2e;
  --ink-soft: #4a5d73;
  --paper: #f4f7fb;
  --card: #ffffff;
  --line: #d5dee9;
  --teal: #0d7a7a;
  --teal-deep: #095c5c;
  --teal-soft: #e6f4f4;
  --amber: #c47a12;
  --amber-soft: #fff4e5;
  --coral: #b5433a;
  --coral-soft: #fdeceb;
  --radius: 12px;
  --maxw: 960px;
  --shadow: 0 1px 2px rgba(15, 28, 46, 0.05), 0 8px 24px rgba(15, 28, 46, 0.06);
  --font: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --display: "Source Serif 4", Georgia, "Times New Roman", serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  font-family: var(--font);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  font-size: 17px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
h1, h2, h3, h4 {
  font-family: var(--display);
  line-height: 1.2;
  color: var(--ink);
  font-weight: 700;
}
a { color: var(--teal); }
a:hover { color: var(--teal-deep); }
img { max-width: 100%; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
main { flex: 1; }

/* Header */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.logo {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(145deg, var(--teal), var(--teal-deep));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  font-family: var(--font);
  letter-spacing: -0.02em;
}
.logo-text span {
  display: block;
  font-family: var(--font);
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}
.site-nav { display: flex; gap: 2px; flex-wrap: wrap; }
.site-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 7px 12px;
  border-radius: 8px;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--teal-soft);
  color: var(--teal-deep);
}
:focus-visible { outline: 3px solid var(--amber); outline-offset: 2px; }

/* Hero / page heads */
.page-hero {
  padding: 36px 0 10px;
}
.page-hero .kicker {
  display: inline-block;
  background: var(--teal-soft);
  color: var(--teal-deep);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 11px;
  border-radius: 99px;
  margin-bottom: 12px;
}
.page-hero h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.45rem);
  max-width: 22ch;
  margin-bottom: 10px;
}
.page-hero .lede {
  color: var(--ink-soft);
  font-size: 1.05rem;
  max-width: 62ch;
  margin-bottom: 8px;
}
.byline {
  font-size: 0.85rem;
  color: var(--ink-soft);
  font-weight: 600;
  margin-bottom: 18px;
}
.breadcrumb {
  font-size: 0.8rem;
  color: var(--ink-soft);
  padding: 18px 0 0;
}
.breadcrumb a {
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 600;
}
.breadcrumb a:hover { color: var(--teal); text-decoration: underline; }

/* Trust strip */
.trust-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin: 22px 0 28px;
}
.trust-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: 0.88rem;
  color: var(--ink-soft);
  box-shadow: var(--shadow);
}
.trust-item strong {
  display: block;
  color: var(--ink);
  font-size: 0.92rem;
  margin-bottom: 2px;
}

/* Tool cards */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 20px 0 36px;
}
.tool-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow);
  transition: border-color 0.15s, transform 0.15s;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tool-card:hover {
  border-color: var(--teal);
  transform: translateY(-2px);
  color: inherit;
}
.tool-card .badge {
  align-self: flex-start;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--amber-soft);
  color: var(--amber);
  padding: 3px 8px;
  border-radius: 99px;
}
.tool-card h2 {
  font-size: 1.15rem;
  font-family: var(--display);
}
.tool-card p {
  font-size: 0.92rem;
  color: var(--ink-soft);
  flex: 1;
}
.tool-card .cta {
  font-weight: 700;
  color: var(--teal);
  font-size: 0.9rem;
  margin-top: 4px;
}

/* Calculator chrome */
.calc-shell {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 22px;
  margin: 8px 0 28px;
}
.disclaimer-strip {
  background: var(--amber-soft);
  border: 1px solid #f0d4a8;
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 0.86rem;
  color: #6b4a10;
  margin-bottom: 18px;
  line-height: 1.5;
}
.disclaimer-strip.strong {
  background: var(--coral-soft);
  border-color: #f0b8b3;
  color: #6e2a24;
}
.disclaimer-strip a { font-weight: 700; }
.calc-form {
  display: grid;
  gap: 14px;
}
.calc-form .row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}
.field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink-soft);
  margin-bottom: 5px;
}
.field input,
.field select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  font: inherit;
  background: #fff;
  color: var(--ink);
}
.field input:focus,
.field select:focus {
  border-color: var(--teal);
  outline: none;
  box-shadow: 0 0 0 3px var(--teal-soft);
}
.field .hint {
  font-size: 0.75rem;
  color: var(--ink-soft);
  margin-top: 4px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--teal);
  color: #fff;
  border: none;
  border-radius: 9px;
  padding: 11px 18px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--teal-deep); color: #fff; }
.btn-secondary {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn-secondary:hover { background: var(--line); color: var(--ink); }
.calc-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }
.results {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.results h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}
.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
}
.result-tile {
  background: var(--teal-soft);
  border-radius: 10px;
  padding: 12px 14px;
}
.result-tile .label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--teal-deep);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.result-tile .value {
  font-size: 1.35rem;
  font-weight: 800;
  font-family: var(--font);
  color: var(--ink);
  margin-top: 2px;
}
.result-tile.muted { background: var(--paper); }
.result-tile.muted .label { color: var(--ink-soft); }
.rate-note {
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin-top: 12px;
}
.period-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.period-toggle label {
  flex: 1;
  min-width: 140px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  cursor: pointer;
  background: var(--paper);
  font-size: 0.9rem;
}
.period-toggle input { margin-right: 8px; accent-color: var(--teal); }
.period-toggle label:has(input:checked) {
  border-color: var(--teal);
  background: var(--teal-soft);
  font-weight: 700;
}
.day-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 8px;
}
.day-grid .field label { font-size: 0.75rem; }
.compare-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 640px) {
  .compare-cols { grid-template-columns: 1fr; }
}
.compare-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: var(--paper);
}
.compare-card h4 {
  font-size: 1rem;
  margin-bottom: 8px;
}
.compare-card ul {
  margin: 0 0 0 18px;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

/* Prose */
.prose {
  max-width: 70ch;
  padding-bottom: 40px;
}
.prose h2 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  margin: 32px 0 12px;
}
.prose h3 {
  font-size: 1.08rem;
  margin: 22px 0 8px;
  font-family: var(--font);
}
.prose p { margin-bottom: 14px; }
.prose ul, .prose ol { margin: 0 0 14px 22px; }
.prose li { margin-bottom: 7px; }
.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  margin: 0 0 16px;
  border: 1px solid var(--line);
}
.prose th, .prose td {
  padding: 11px 13px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.prose th { background: var(--teal-soft); color: var(--teal-deep); font-weight: 700; }
.prose tr:last-child td { border-bottom: none; }
.prose .callout {
  background: var(--card);
  border-left: 4px solid var(--teal);
  padding: 12px 16px;
  margin: 16px 0;
  border-radius: 0 10px 10px 0;
  font-size: 0.95rem;
}
.prose .sources {
  font-size: 0.88rem;
  color: var(--ink-soft);
}
.prose .sources a { word-break: break-word; }
.faq details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 10px;
}
.faq summary {
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq details[open] summary { margin-bottom: 8px; color: var(--teal-deep); }
.faq details p { margin: 0; font-size: 0.95rem; color: var(--ink-soft); }

/* Guides list */
.guide-list { list-style: none; margin: 16px 0 40px; display: grid; gap: 10px; }
.guide-list li {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.guide-list .status {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--paper);
  color: var(--ink-soft);
  padding: 4px 9px;
  border-radius: 99px;
  white-space: nowrap;
}

/* Footer */
.site-footer {
  background: var(--ink);
  color: #c5d0de;
  padding: 36px 0 28px;
  margin-top: auto;
  font-size: 0.88rem;
}
.site-footer a { color: #9fd9d9; }
.site-footer a:hover { color: #fff; }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}
.footer-grid h3 {
  color: #fff;
  font-size: 0.85rem;
  font-family: var(--font);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}
.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 6px; }
.footer-meta {
  border-top: 1px solid #2a3b52;
  padding-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  justify-content: space-between;
  color: #8a9bb0;
  font-size: 0.8rem;
}

/* 404 */
.error-box {
  text-align: center;
  padding: 60px 20px 80px;
}
.error-box h1 { font-size: 2.4rem; margin-bottom: 10px; }
.error-box p { color: var(--ink-soft); margin-bottom: 20px; }

.reviewed {
  font-size: 0.82rem;
  color: var(--ink-soft);
  font-weight: 600;
  margin: 8px 0 16px;
}
.section-gap { margin: 28px 0; }