/* WhichLMS · identité propre : éditorial calme, papier chaud, encre bleutée, accent sarcelle profond. */

:root {
  --paper: #f8f5ef;
  --card: #fffdf8;
  --ink: #232e36;
  --muted: #5b6870;
  --accent: #166a5d;
  --accent-ink: #0f4f45;
  --accent-soft: #e4efeb;
  --rule: #d9d2c4;
  --rule-soft: #e8e2d6;
  --amber: #a9761f;
  --amber-soft: #f5ecd9;
  --danger: #8c3b2e;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
}

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 1.25rem; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: #fff; padding: .5rem 1rem; z-index: 50;
}
.skip:focus { left: 0; }

.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;
}

.text-link { font-weight: 600; color: var(--accent-ink); }

/* ----- header ----- */

.site-header {
  border-top: 6px solid var(--accent);
  border-bottom: 1px solid var(--rule);
  background: var(--card);
}

.header-row {
  display: flex; align-items: baseline; justify-content: space-between;
  flex-wrap: wrap; gap: .5rem 1.5rem; padding-top: 1.1rem; padding-bottom: 1rem;
}

.wordmark {
  font-family: var(--serif);
  font-size: 1.7rem; font-weight: 700; letter-spacing: -0.01em;
  color: var(--ink); text-decoration: none;
}
.wordmark span { font-weight: 400; font-style: italic; color: var(--accent); }
.wordmark.small { font-size: 1.25rem; margin: 0 0 .5rem; }

.site-nav { display: flex; flex-wrap: wrap; gap: .25rem .5rem; }
.site-nav a {
  color: var(--ink); text-decoration: none; font-size: .95rem;
  padding: .3rem .6rem; border-radius: 3px;
}
.site-nav a:hover, .site-nav a:focus { background: var(--accent-soft); color: var(--accent-ink); }
.site-nav a[aria-current="true"] { background: var(--accent-soft); color: var(--accent-ink); }

/* ----- breadcrumb ----- */

.breadcrumb { font-size: .85rem; color: var(--muted); margin: 1.2rem 0 0; }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: .35rem; margin: 0; padding: 0; }
.breadcrumb li + li::before { content: "\203A"; margin-right: .35rem; color: var(--rule); }
.breadcrumb a { color: var(--muted); }

/* ----- article ----- */

article.page { padding: 1.2rem 0 3.5rem; }

.kicker {
  font-size: .8rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent); font-weight: 600; margin: 1.4rem 0 .4rem;
}

h1 {
  font-family: var(--serif); font-size: clamp(1.9rem, 4.2vw, 2.7rem);
  line-height: 1.15; letter-spacing: -0.015em; margin: 0 0 1rem; max-width: 26ch;
}

.answer {
  font-size: 1.15rem; line-height: 1.6; max-width: 68ch;
  border-left: 3px solid var(--accent); background: var(--card);
  padding: 1rem 1.3rem; margin: 1.4rem 0 2rem;
}
.answer p { margin: 0 0 .7rem; } .answer p:last-child { margin-bottom: 0; }

h2 {
  font-family: var(--serif); font-size: 1.55rem; line-height: 1.25;
  margin: 2.6rem 0 .8rem; letter-spacing: -0.01em;
  padding-top: 1.2rem; border-top: 1px solid var(--rule-soft); max-width: 60ch;
}

h3 { font-family: var(--serif); font-size: 1.2rem; margin: 1.8rem 0 .5rem; }

p, ul, ol { max-width: 68ch; }
article a { color: var(--accent-ink); text-decoration-color: rgba(22,106,93,.4); text-underline-offset: 2px; }
article a:hover { text-decoration-color: var(--accent); }

ul { padding-left: 1.2rem; } li { margin-bottom: .35rem; }

/* ----- tables ----- */

.table-scroll { overflow-x: auto; margin: 1.4rem 0; }
table {
  border-collapse: collapse; width: 100%; min-width: 560px;
  background: var(--card); font-size: .95rem; line-height: 1.45;
}
caption { text-align: left; font-size: .85rem; color: var(--muted); padding: .4rem 0; caption-side: bottom; }
th, td { border: 1px solid var(--rule-soft); padding: .55rem .7rem; text-align: left; vertical-align: top; }
thead th {
  background: var(--accent-soft); color: var(--accent-ink);
  font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; font-weight: 600;
}
tbody th { font-weight: 600; background: #faf8f2; }
td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.quote-tag { color: var(--amber); font-weight: 600; white-space: nowrap; }
.unknown-tag { color: var(--muted); font-style: italic; }
.yes-tag { color: var(--accent-ink); font-weight: 600; }

/* ----- boxes & CTA ----- */

.note {
  background: var(--amber-soft); border-left: 3px solid var(--amber);
  padding: .8rem 1.1rem; margin: 1.3rem 0; max-width: 68ch; font-size: .97rem;
}

.cta-row { margin: 1.5rem 0; display: flex; flex-wrap: wrap; gap: .7rem; }
.cta {
  display: inline-block; background: var(--accent); color: #fff !important;
  text-decoration: none !important; padding: .6rem 1.1rem; border-radius: 4px;
  font-weight: 600; font-size: .97rem;
}
.cta:hover, .cta:focus { background: var(--accent-ink); }
.cta.ghost { background: transparent; color: var(--accent-ink) !important; border: 1px solid var(--accent); }
.cta.ghost:hover, .cta.ghost:focus { background: var(--accent-soft); }

/* ----- FAQ ----- */

.faq { margin-top: 1rem; max-width: 68ch; }
.faq details { border: 1px solid var(--rule); background: var(--card); margin-bottom: .6rem; border-radius: 4px; }
.faq summary { cursor: pointer; padding: .75rem 1rem; font-weight: 600; }
.faq summary:hover { background: var(--accent-soft); }
.faq .faq-a { padding: 0 1rem .9rem; }

/* ----- hubs & cards ----- */

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; margin: 1.6rem 0; }
.card {
  border: 1px solid var(--rule); background: var(--card); padding: 1.1rem 1.2rem 1.2rem; border-radius: 4px;
  display: flex; flex-direction: column;
}
.card h3 { margin: 0 0 .4rem; font-size: 1.12rem; }
.card h3 a { text-decoration: none; color: var(--ink); }
.card h3 a:hover { color: var(--accent-ink); text-decoration: underline; }
.card p { font-size: .93rem; color: var(--muted); margin: 0; }
.card .card-family { font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); margin-bottom: .4rem; }

/* ----- home hero ----- */

.hero { padding: 3rem 0 1rem; }
.hero h1 { max-width: 22ch; }
.hero .lede { font-size: 1.2rem; max-width: 62ch; color: var(--ink); }

/* ----- tools (calculator / matrix) ----- */

.tool {
  border: 1px solid var(--rule); background: var(--card); border-radius: 6px;
  padding: 1.3rem 1.4rem; margin: 1.6rem 0;
}
.tool fieldset { border: none; margin: 0 0 1rem; padding: 0; }
.tool legend, .tool .tool-h { font-weight: 700; font-family: var(--serif); font-size: 1.1rem; margin-bottom: .5rem; }
.tool-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: .9rem 1.2rem; }
.tool label { display: block; font-size: .88rem; font-weight: 600; margin-bottom: .25rem; }
.tool input[type="number"], .tool select {
  width: 100%; padding: .5rem .6rem; border: 1px solid var(--rule); border-radius: 4px;
  background: #fff; font: inherit; font-size: .97rem; color: var(--ink);
}
.tool input:focus, .tool select:focus, .tool input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 1px;
}
.tool .checks { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; }
.tool .checks label { font-weight: 400; display: flex; align-items: center; gap: .45rem; margin: 0; font-size: .95rem; }
.tool .hint { font-size: .85rem; color: var(--muted); margin-top: .2rem; }
.tool-results { margin-top: 1.2rem; }
.result-line { border-top: 1px solid var(--rule-soft); padding: .8rem 0; }
.result-line .r-name { font-weight: 700; }
.result-line .r-plan { color: var(--accent-ink); }
.result-line .r-cost { font-variant-numeric: tabular-nums; font-weight: 700; }
.result-line .r-why { font-size: .9rem; color: var(--muted); }
.result-line.r-quote .r-cost { color: var(--amber); }
.result-line.r-excluded { opacity: .65; }

/* ----- 404 ----- */

.err-page { text-align: left; padding: 4rem 0; }

/* ----- footer ----- */

.site-footer { border-top: 1px solid var(--rule); background: var(--card); margin-top: 2rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; padding: 2.2rem 1.25rem; }
.foot-h { font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin: 0 0 .6rem; }
.foot-note { font-size: .86rem; color: var(--muted); max-width: 46ch; }
.site-footer nav a { display: block; color: var(--ink); text-decoration: none; font-size: .92rem; padding: .18rem 0; }
.site-footer nav a:hover { color: var(--accent-ink); text-decoration: underline; }
.foot-base { border-top: 1px solid var(--rule-soft); padding-top: 1rem; padding-bottom: 1.4rem; font-size: .85rem; color: var(--muted); }

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr; gap: 1.4rem; }
  body { font-size: 1rem; }
  th, td { padding: .45rem .55rem; }
}