:root {
  --bg: #f3eee6;
  --paper: #fffdf8;
  --ink: #1c1916;
  --muted: #4a453e;
  --line: #ddd4c6;
  --copper: #8f3010;
  --copper-deep: #73260c;
  --on-copper: #fffaf6;
  --pine: #1b3a34;
  --pine-2: #245049;
  --foam: #e5f0ec;
  --sand: #f7f1e6;
  --warn-bg: #f8ecd9;
  --warn-ink: #6a3b12;
  --bad-bg: #f8e6e0;
  --bad-ink: #6e2c14;
  --shadow: 0 1px 0 rgba(28, 25, 22, 0.05), 0 14px 36px rgba(28, 25, 22, 0.06);
  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, "Liberation Serif", serif;
  --sans: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --max: 72rem;
  --measure: 42rem;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
}

img, svg { max-width: 100%; }

a {
  color: var(--copper-deep);
  text-underline-offset: 0.16em;
}

a:hover { color: var(--copper); }

:focus-visible {
  outline: 3px solid var(--copper);
  outline-offset: 2px;
}

.skip {
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  background: var(--paper);
  color: var(--ink);
  padding: 0.5rem 0.75rem;
  z-index: 20;
  transform: translateY(-160%);
}

.skip:focus { transform: none; }

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

.site-header {
  background: var(--pine);
  color: #f6f1e8;
}

.site-header a { color: #f6f1e8; }

.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: #f6f1e8;
}

.brand:hover { color: #fff; }

.mark {
  width: 2.4rem;
  height: 2.4rem;
  flex: none;
  color: #f0b089;
}

.brand-name {
  font-family: var(--serif);
  font-size: 1.2rem;
  line-height: 1.1;
  display: block;
}

.brand-tag {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.01em;
  opacity: 0.84;
}

.menu { position: relative; }

.menu-button {
  list-style: none;
  cursor: pointer;
  border: 1px solid rgba(246, 241, 232, 0.45);
  padding: 0.4rem 0.7rem;
  border-radius: 2px;
  font: inherit;
  color: inherit;
}

.menu-button::-webkit-details-marker { display: none; }

.menu-panel { background: var(--pine-2); padding: 0.4rem 0 0.8rem; }

.nav-drop { margin: 0.15rem 0; }
.nav-drop summary {
  cursor: pointer;
  list-style: none;
  font-weight: 650;
  padding: 0.25rem 0;
}
.nav-drop summary::-webkit-details-marker { display: none; }

.menu-panel ul { list-style: none; margin: 0; padding: 0 0 0.35rem; }
.menu-panel a { display: inline-block; text-decoration: none; padding: 0.18rem 0; }
.menu-panel a:hover,
.menu-panel a[aria-current="page"] { text-decoration: underline; }
.home-link { font-weight: 650; display: inline-block; padding: 0.25rem 0; text-decoration: none; }

@media (min-width: 960px) {
  .menu > .menu-button { display: none; }
  .menu-panel {
    display: flex !important;
    gap: 0.15rem;
    align-items: center;
    background: transparent;
    padding: 0;
  }
  .home-link { padding: 0.35rem 0.55rem; }
  .nav-drop { position: relative; margin: 0; }
  .nav-drop summary { padding: 0.35rem 0.55rem; font-weight: 550; }
  .nav-drop ul {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    background: #245049;
    min-width: 16.5rem;
    padding: 0.45rem 0.85rem 0.6rem;
    z-index: 6;
    box-shadow: var(--shadow);
  }
  .nav-drop[open] ul { display: block; }
  .nav-drop a { display: block; }
}

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

.kicker {
  margin: 0 0 0.4rem;
  color: var(--copper-deep);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 650;
}

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.2;
  color: var(--ink);
}

h1 { font-size: clamp(2rem, 4vw, 3.1rem); margin: 0 0 0.7rem; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.45rem, 2.4vw, 1.9rem); margin: 2rem 0 0.6rem; }
h3 { font-size: 1.2rem; margin: 1.3rem 0 0.4rem; }

.lede {
  font-size: 1.15rem;
  max-width: 40rem;
  margin: 0;
  color: var(--muted);
}

.lookup {
  margin: 1.5rem 0 1rem;
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 1rem;
}

@media (min-width: 800px) {
  .lookup { padding: 1.25rem 1.35rem 1.35rem; }
}

.lookup-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  flex-wrap: wrap;
}

.lookup-head p { margin: 0; color: var(--muted); }

.fields {
  display: grid;
  gap: 0.8rem;
  margin: 1rem 0;
}

@media (min-width: 800px) {
  .fields { grid-template-columns: repeat(3, 1fr); }
}

label {
  display: block;
  font-size: 0.86rem;
  font-weight: 650;
  margin-bottom: 0.28rem;
}

input, select, textarea {
  width: 100%;
  font: inherit;
  color: var(--ink);
  background: #fff;
  border: 1px solid #c9bfb0;
  border-radius: 2px;
  padding: 0.62rem 0.7rem;
  min-height: 2.8rem;
}

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

.result { margin-top: 0.4rem; }

.result-summary {
  margin: 0 0 0.8rem;
  font-size: 1.05rem;
}

.caution, .notice {
  background: var(--warn-bg);
  color: var(--warn-ink);
  border-left: 4px solid #c47a32;
  padding: 0.75rem 0.9rem;
  margin: 0 0 0.9rem;
}

.caution p, .notice p { margin: 0.35rem 0; }
.caution p:first-child, .notice p:first-child { margin-top: 0; }
.caution p:last-child, .notice p:last-child { margin-bottom: 0; }

.unsuitable {
  background: var(--bad-bg);
  color: var(--bad-ink);
  padding: 0.9rem 1rem;
  border-left: 4px solid var(--copper);
}

.cards {
  display: grid;
  gap: 0.8rem;
}

@media (min-width: 860px) {
  .cards.two { grid-template-columns: 1fr 1fr; }
  .cards.three { grid-template-columns: 1fr 1fr 1fr; }
}

.card {
  background: var(--sand);
  border: 1px solid var(--line);
  padding: 0.85rem 0.9rem 0.95rem;
}

.card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.05rem;
}

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem 0.8rem;
  margin: 0;
}

.stats dt {
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}

.stats dd {
  margin: 0.1rem 0 0;
  font-family: var(--serif);
  font-size: 1.28rem;
  line-height: 1.2;
}

.temp-f {
  display: block;
  font-family: var(--sans);
  font-size: 0.92rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

.card .detail, .card .temp-note {
  margin: 0.7rem 0 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.source-line { margin: 0.65rem 0 0; font-size: 0.92rem; }

.more-links { margin: 0.9rem 0 0; padding-left: 1.1rem; }
.more-links li { margin: 0.15rem 0; }

.section { padding: 0.5rem 0 1.4rem; }

.grid {
  display: grid;
  gap: 0.8rem;
}

@media (min-width: 700px) {
  .grid.guides { grid-template-columns: 1fr 1fr; }
  .grid.tools { grid-template-columns: 1fr 1fr; }
}

.guide-card, .tool-card, .prose, .page-intro {
  background: var(--paper);
  border: 1px solid var(--line);
}

.guide-card, .tool-card {
  display: block;
  padding: 0.95rem 1rem 1rem;
  text-decoration: none;
  color: inherit;
}

.guide-card:hover, .tool-card:hover { border-color: #c8aa90; }

.guide-card h3, .tool-card h3 { margin: 0 0 0.3rem; }
.guide-card p, .tool-card p { margin: 0; color: var(--muted); }

.page {
  padding: 1.4rem 0 2.5rem;
}

.crumbs {
  margin: 0 0 0.8rem;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.2rem;
  font-size: 0.92rem;
  color: var(--muted);
}

.crumbs li:not(:last-child)::after {
  content: "/";
  margin-left: 0.35rem;
  color: #8a8175;
}

.crumbs a { color: var(--pine-2); }

.page-intro { padding: 1.1rem 1.15rem 1.15rem; box-shadow: var(--shadow); }
.page-intro .lede { max-width: none; }

.prose {
  margin-top: 1rem;
  padding: 0.3rem 1.15rem 1.2rem;
}

.prose > :first-child { margin-top: 0.9rem; }

.table-wrap { overflow-x: auto; margin: 0.8rem 0 1rem; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.98rem;
  min-width: 36rem;
}

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

th {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 650;
}

ol.steps, .prose ol, .prose ul { padding-left: 1.2rem; }
.prose li { margin: 0.35rem 0; }

.related {
  margin-top: 1rem;
  padding: 0.9rem 1.1rem 1rem;
  background: var(--foam);
  border: 1px solid #c9ddd6;
}

.related h2 { margin-top: 0; font-size: 1.25rem; }
.related ul { margin: 0.3rem 0 0; padding-left: 1.1rem; }

.blanks {
  margin: 1rem 0;
  padding: 0.9rem 1rem;
  background: var(--foam);
  border: 1px solid #c9ddd6;
}

.blanks h2 { margin: 0 0 0.35rem; font-size: 1.25rem; }
.blanks p { margin: 0.3rem 0; }

.ad-slot {
  margin: 1rem 0;
  padding: 0.9rem 1rem;
  text-align: center;
  color: var(--muted);
  border: 1px dashed #8d8478;
  background: repeating-linear-gradient(
    -45deg,
    #f7f1e6,
    #f7f1e6 10px,
    #f3eee6 10px,
    #f3eee6 20px
  );
}

.ad-slot p { margin: 0.25rem 0; }
.ad-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--ink);
}

.sources { font-size: 0.98rem; }
.sources li { margin: 0.45rem 0; }

.faq details {
  border-top: 1px solid var(--line);
  padding: 0.55rem 0;
}

.faq details:last-child { border-bottom: 1px solid var(--line); }

.faq summary {
  cursor: pointer;
  font-weight: 650;
}

.faq details p { margin: 0.45rem 0 0.2rem; }

.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.8rem; }

.chips button, .btn {
  font: inherit;
  background: var(--pine);
  color: #f6f1e8;
  border: 0;
  padding: 0.45rem 0.7rem;
  cursor: pointer;
  border-radius: 2px;
}

.chips button { background: var(--paper); color: var(--ink); border: 1px solid #c9bfb0; }
.chips button[aria-pressed="true"] { background: var(--pine); color: #f6f1e8; border-color: var(--pine); }

.calc-grid {
  display: grid;
  gap: 0.75rem;
}

@media (min-width: 760px) {
  .calc-grid { grid-template-columns: 1fr 1fr; }
}

.totals {
  margin-top: 1rem;
  display: grid;
  gap: 0.55rem;
}

@media (min-width: 700px) {
  .totals { grid-template-columns: repeat(4, 1fr); }
}

.total {
  background: var(--sand);
  border: 1px solid var(--line);
  padding: 0.7rem 0.75rem;
}

.total span {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.total strong {
  display: block;
  margin-top: 0.2rem;
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 600;
}

.site-footer {
  background: var(--pine);
  color: #f3eee6;
  padding: 1.6rem 0 2rem;
  margin-top: 1rem;
}

.site-footer a { color: #f6f1e8; }

.footer-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 800px) {
  .footer-grid { grid-template-columns: 1.4fr repeat(3, 1fr); }
}

.site-footer h2 {
  color: #f3eee6;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--sans);
  margin: 0 0 0.4rem;
}

.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: 0.2rem 0; }
.fine { color: #d9e4e0; font-size: 0.92rem; }
.fine a { color: #fff; }

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

@media (max-width: 959px) {
  .menu-panel {
    position: absolute;
    right: 0;
    top: calc(100% + 0.45rem);
    width: min(19rem, 80vw);
    z-index: 5;
    padding: 0.8rem 1rem 1rem;
    box-shadow: var(--shadow);
  }
  .menu:not([open]) .menu-panel { display: none; }
}