/* Calculio — style.css
   Mobile-first. Modifier les couleurs et les tailles dans :root. */

:root {
  --bg: #f1f4f8;
  --surface: #ffffff;
  --ink: #0f1b2d;
  --muted: #566379;
  --line: #dbe2ec;
  --primary: #2340d8;
  --primary-ink: #1a30ab;
  --on-primary: #ffffff;
  --primary-soft: #e6ebff;
  --lcd: #dce8c9;
  --lcd-line: #b7c9a0;
  --lcd-ink: #13210f;
  --lcd-muted: #3b5133;
  --danger: #b42318;
  --danger-bg: #fdecea;
  --c-finance: #0f7b5f;
  --c-automobile: #b8430a;
  --c-mathematiques: #2340d8;
  --c-informatique: #6d3fd0;
  --c-conversion: #b4174f;
  --c-immobilier: #8a5a00;
  --c-emploi: #0b6e8a;
  --c-quotidien: #a3308f;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(15, 27, 45, .06), 0 6px 20px rgba(15, 27, 45, .05);
  --font: "Avenir Next", "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, "Liberation Mono", monospace;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c1320;
    --surface: #141e30;
    --ink: #eaeff7;
    --muted: #9fabc0;
    --line: #25324a;
    --primary: #8aa0ff;
    --primary-ink: #b3c1ff;
    --on-primary: #0c1320;
    --primary-soft: #1b2745;
    --c-finance: #3fc9a0; --c-automobile: #f2905a; --c-mathematiques: #8aa0ff; --c-informatique: #b593f5; --c-conversion: #f27fa8;
    --c-immobilier: #e0a640; --c-emploi: #4fc3e0; --c-quotidien: #e58bd3;
    --lcd: #172514;
    --lcd-line: #2b4327;
    --lcd-ink: #c9f28f;
    --lcd-muted: #8fb371;
    --danger: #ff9b90;
    --danger-bg: #3a1a1a;
    --c-finance: #4fd1a5;
    --c-automobile: #ff9a5c;
    --c-mathematiques: #8aa0ff;
    --c-informatique: #b79cff;
    --c-conversion: #ff8db8;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 6px 20px rgba(0, 0, 0, .25);
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
}
img, svg { max-width: 100%; }
a { color: var(--primary-ink); text-underline-offset: .18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.02em; margin: 0; }
p { margin: 0 0 1rem; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: .5rem; top: -4rem; background: var(--primary); color: var(--on-primary); padding: .6rem 1rem; border-radius: 8px; z-index: 100; }
.skip-link:focus { top: .5rem; }
.container { width: min(100% - 2rem, 1120px); margin-inline: auto; }
.icon { width: 1.25rem; height: 1.25rem; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 40; background: var(--surface); border-bottom: 1px solid var(--line); }
.site-header__bar { display: flex; align-items: center; gap: .5rem; min-height: 3.75rem; }
.logo { display: inline-flex; align-items: center; gap: .55rem; font-weight: 800; font-size: 1.3rem; letter-spacing: -.03em; color: var(--ink); text-decoration: none; margin-right: auto; }
.logo svg { width: 2rem; height: 2rem; flex: none; }
.site-nav { display: none; }
.site-nav ul { list-style: none; margin: 0; padding: 0; }
.site-nav a { display: block; padding: .7rem .9rem; color: var(--ink); text-decoration: none; font-weight: 600; border-radius: 10px; }
.site-nav a:hover, .site-nav a[aria-current="page"] { background: var(--primary-soft); color: var(--primary-ink); }
.nav-open .site-nav { display: block; position: absolute; left: 0; right: 0; top: 100%; background: var(--surface); border-bottom: 1px solid var(--line); padding: .5rem 1rem 1rem; box-shadow: var(--shadow); }
.icon-btn { display: inline-flex; align-items: center; justify-content: center; width: 2.75rem; height: 2.75rem; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); color: var(--ink); cursor: pointer; }
.icon-btn:hover { background: var(--primary-soft); }
@media (min-width: 1240px) {
  .nav-toggle { display: none; }
  .site-nav, .nav-open .site-nav { display: block; position: static; background: none; border: 0; padding: 0; box-shadow: none; }
  .site-nav ul { display: flex; gap: 0; }
  .site-nav a { padding: .5rem .55rem; white-space: nowrap; font-size: .95rem; }
}
@media (min-width: 1240px) {
  .site-nav li:last-child { display: none; } /* « Tous les outils » reste accessible par l'accueil, le pied de page et la recherche */
}

/* ---------- Recherche ---------- */
.search { position: relative; }
.search__input { width: 100%; height: 3.25rem; padding: 0 1rem 0 3rem; font: inherit; font-size: 1.0625rem; color: var(--ink); background: var(--surface); border: 1.5px solid var(--line); border-radius: 999px; }
.search__input::placeholder { color: var(--muted); }
.search .icon { position: absolute; left: 1rem; top: 1rem; color: var(--muted); pointer-events: none; }
.search__results { position: absolute; z-index: 30; left: 0; right: 0; top: calc(100% + .4rem); margin: 0; padding: .35rem; list-style: none; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); max-height: 65vh; overflow: auto; }
.search__results a { display: block; padding: .6rem .75rem; border-radius: 10px; text-decoration: none; color: var(--ink); }
.search__results a:hover, .search__results a:focus-visible { background: var(--primary-soft); }
.search__results strong { display: block; }
.search__results small { color: var(--muted); }
.search__empty { padding: .8rem; color: var(--muted); }
.search-panel { background: var(--surface); border-bottom: 1px solid var(--line); padding: .75rem 0 1rem; }
.search-panel[hidden] { display: none; }

/* ---------- Boutons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-height: 3rem; padding: 0 1.4rem; font: inherit; font-weight: 700; color: var(--on-primary); background: var(--primary); border: 1.5px solid var(--primary); border-radius: 12px; cursor: pointer; text-decoration: none; }
.btn:hover { filter: brightness(1.08); }
.btn--ghost { color: var(--ink); background: transparent; border-color: var(--line); }
.btn--ghost:hover { background: var(--primary-soft); filter: none; }

/* ---------- Accueil ---------- */
.hero { position: relative; padding: 2.75rem 0 2.25rem; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 32px 32px; -webkit-mask-image: linear-gradient(#000, transparent 92%); mask-image: linear-gradient(#000, transparent 92%); opacity: .7; }
.hero h1 { font-size: clamp(2.1rem, 7vw, 3.6rem); letter-spacing: -.035em; max-width: 16ch; }
.hero p.lead { font-size: 1.15rem; color: var(--muted); max-width: 52ch; margin: 1rem 0 1.5rem; }
.hero .search { max-width: 40rem; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1rem 0 0; padding: 0; list-style: none; }
.chips a { display: inline-block; padding: .4rem .85rem; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--ink); text-decoration: none; font-size: .95rem; }
.chips a:hover { background: var(--primary-soft); }
.section { padding: 1.75rem 0; }
.section__head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.section h2 { font-size: 1.5rem; }
.grid { display: grid; gap: .85rem; grid-template-columns: repeat(auto-fill, minmax(min(100%, 16.5rem), 1fr)); }
.grid--cats { grid-template-columns: repeat(auto-fill, minmax(min(100%, 12.5rem), 1fr)); }
.card { display: block; padding: 1rem 1.1rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); color: var(--ink); text-decoration: none; }
a.card:hover { border-color: var(--primary); }
.card strong { display: block; font-size: 1.02rem; letter-spacing: -.01em; }
.card span { display: block; margin-top: .2rem; color: var(--muted); font-size: .92rem; line-height: 1.45; }
.cat { --cat: var(--primary); display: flex; flex-direction: column; gap: .35rem; padding: 1.1rem; background: var(--surface); border: 1px solid var(--line); border-left: 5px solid var(--cat); border-radius: 14px; color: var(--ink); text-decoration: none; }
.cat:hover { border-color: var(--cat); }
.cat .icon { width: 1.75rem; height: 1.75rem; color: var(--cat); }
.cat strong { font-size: 1.1rem; }
.cat span { color: var(--muted); font-size: .92rem; line-height: 1.45; }
.cat--finance { --cat: var(--c-finance); }
.cat--automobile { --cat: var(--c-automobile); }
.cat--mathematiques { --cat: var(--c-mathematiques); }
.cat--informatique { --cat: var(--c-informatique); }
.cat--conversion { --cat: var(--c-conversion); }
.cat--immobilier { --cat: var(--c-immobilier); }
.cat--emploi { --cat: var(--c-emploi); }
.cat--quotidien { --cat: var(--c-quotidien); }

/* ---------- Pages outils ---------- */
.breadcrumb { padding: 1rem 0 .25rem; font-size: .9rem; color: var(--muted); }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: .25rem .5rem; margin: 0; padding: 0; list-style: none; }
.breadcrumb li + li::before { content: "/"; margin-right: .5rem; color: var(--line); }
.breadcrumb a { color: var(--muted); }
.layout { display: grid; gap: 2rem; padding-bottom: 2rem; }
@media (min-width: 1000px) { .layout { grid-template-columns: minmax(0, 1fr) 19rem; align-items: start; } }
.page-title { font-size: clamp(1.8rem, 5.5vw, 2.6rem); letter-spacing: -.03em; margin: .5rem 0 .75rem; }
.lead { font-size: 1.1rem; color: var(--muted); max-width: 62ch; }
.prose { max-width: 68ch; }
.prose h2 { font-size: 1.45rem; margin: 2.25rem 0 .75rem; }
.prose h3 { font-size: 1.1rem; margin: 1.4rem 0 .4rem; letter-spacing: -.01em; }
.prose ul { padding-left: 1.2rem; }
.prose li { margin-bottom: .45rem; }
.formula { margin: 0 0 1rem; padding: .85rem 1rem; font-family: var(--mono); font-size: .95rem; line-height: 1.7; background: var(--surface); border: 1px solid var(--line); border-left: 4px solid var(--primary); border-radius: 10px; overflow-x: auto; }
.example { padding: .9rem 1rem; background: var(--primary-soft); border-radius: 12px; }
.example p:last-child { margin: 0; }
.note { font-size: .9rem; color: var(--muted); }

/* ---------- Calculateur ---------- */
.calc { margin: 1.25rem 0 1.5rem; padding: 1.15rem; background: var(--surface); border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); }
.calc__fields { display: grid; gap: 1rem; }
@media (min-width: 640px) { .calc__fields { grid-template-columns: repeat(2, minmax(0, 1fr)); } .field--wide { grid-column: 1 / -1; } }
.field[hidden] { display: none; }
.field label, .field .label { display: block; margin-bottom: .35rem; font-weight: 650; font-size: .96rem; }
.field__control { position: relative; }
.field input[type="text"], .field input[type="date"], .field input[type="email"], .field input[type="password"], .field select, .field textarea { width: 100%; min-height: 3rem; padding: .6rem .9rem; font: inherit; font-size: 1.0625rem; color: var(--ink); background: var(--bg); border: 1.5px solid var(--line); border-radius: 12px; }
.field textarea { min-height: 7rem; resize: vertical; line-height: 1.5; }
.field select { appearance: auto; }
.field input.has-unit { padding-right: 3.4rem; }
.field__unit { position: absolute; right: .9rem; top: 50%; transform: translateY(-50%); color: var(--muted); pointer-events: none; font-weight: 600; }
.field input[aria-invalid="true"] { border-color: var(--danger); }
.field__hint { margin: .3rem 0 0; font-size: .85rem; color: var(--muted); }
.check { display: flex; align-items: center; gap: .65rem; min-height: 2.75rem; font-weight: 500; cursor: pointer; }
.check input { width: 1.4rem; height: 1.4rem; accent-color: var(--primary); flex: none; }
.checks { display: grid; gap: .1rem .75rem; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); }
.fieldset { border: 1px solid var(--line); border-radius: 12px; padding: .75rem 1rem .9rem; margin: 0; min-width: 0; }
.fieldset legend { padding: 0 .4rem; font-weight: 650; }
.calc__actions { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.1rem; }

.calc__out { margin-top: 1.25rem; padding: 1rem 1.15rem; color: var(--lcd-ink); background: var(--lcd); border: 1px solid var(--lcd-line); border-radius: 14px; box-shadow: inset 0 2px 8px rgba(0, 0, 0, .09); min-height: 5.5rem; }
.calc__out.is-updated { animation: flash .45s ease-out; }
@keyframes flash { from { filter: brightness(1.18); } to { filter: none; } }
.calc__out--error { color: var(--danger); background: var(--danger-bg); border-color: var(--danger); box-shadow: none; }
.calc__msg { margin: 0; font-weight: 600; }
.results { margin: 0; }
.result { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .1rem 1rem; padding: .5rem 0; border-top: 1px dashed var(--lcd-line); }
.result dt { color: var(--lcd-muted); font-size: .92rem; }
.result dd { margin: 0; font-family: var(--mono); font-weight: 700; font-variant-numeric: tabular-nums; font-size: 1.05rem; text-align: right; overflow-wrap: anywhere; }
.result--main { display: block; padding: 0 0 .6rem; border-top: 0; }
.result--main dd { margin-top: .1rem; text-align: left; font-size: clamp(1.9rem, 8vw, 2.7rem); line-height: 1.1; }
.result--long dd { font-size: .92rem; font-weight: 600; text-align: left; flex-basis: 100%; }
.result--mono dd { letter-spacing: .02em; word-break: break-all; }
.copy-btn { margin-left: .6rem; padding: .25rem .65rem; font: inherit; font-size: .85rem; font-weight: 600; color: var(--lcd-ink); background: transparent; border: 1px solid var(--lcd-ink); border-radius: 8px; cursor: pointer; }
.calc__note { margin: .6rem 0 0; font-size: .88rem; color: var(--lcd-muted); }
.calc__disclaimer { margin: .75rem 0 0; font-size: .82rem; color: var(--muted); }

/* Calculatrice (widget) */
.keypad { display: grid; grid-template-columns: repeat(4, 1fr); gap: .5rem; margin-top: 1rem; }
.keypad button { min-height: 3.4rem; font: inherit; font-size: 1.25rem; font-weight: 650; color: var(--ink); background: var(--bg); border: 1.5px solid var(--line); border-radius: 12px; cursor: pointer; }
.keypad button:hover { background: var(--primary-soft); }
.keypad .op { color: var(--primary-ink); }
.keypad .eq { grid-column: span 2; color: var(--on-primary); background: var(--primary); border-color: var(--primary); }
.history { margin: 1rem 0 0; padding: 0; list-style: none; font-family: var(--mono); font-size: .92rem; color: var(--muted); }

/* ---------- Publicité et affiliation ---------- */
.ad-slot { display: none; }
.ads-on .ad-slot { display: block; margin: 1.5rem 0; min-height: 6rem; text-align: center; }
.ads-on .ad-slot::before { content: attr(data-label); display: block; margin-bottom: .25rem; font-size: .72rem; color: var(--muted); }
.affiliate-card { padding: 1rem 1.1rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.affiliate-card p { margin: 0 0 .75rem; font-size: .92rem; }
.affiliate-card small { display: block; margin-top: .5rem; color: var(--muted); }

/* ---------- Sidebar ---------- */
.sidebar > * + * { margin-top: 1.25rem; }
.sidebar h2 { font-size: 1.05rem; margin-bottom: .6rem; }
.sidebar ul { list-style: none; margin: 0; padding: 0; }
.sidebar li a { display: block; padding: .45rem 0; color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--line); }
.sidebar li a:hover { color: var(--primary-ink); }

/* ---------- Pied de page ---------- */
.site-footer { margin-top: 2rem; padding: 2.25rem 0 1.5rem; background: var(--surface); border-top: 1px solid var(--line); font-size: .95rem; }
.footer-grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); }
.site-footer h2 { font-size: 1rem; margin-bottom: .6rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: .1rem; }
.site-footer a, .link-btn { display: inline-block; padding: .3rem 0; color: var(--ink); text-decoration: none; background: none; border: 0; font: inherit; cursor: pointer; }
.site-footer a:hover, .link-btn:hover { color: var(--primary-ink); text-decoration: underline; }
.footer-bottom { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .88rem; }

/* ---------- Bandeau cookies ---------- */
.consent { position: fixed; z-index: 90; left: .75rem; right: .75rem; bottom: .75rem; max-width: 34rem; padding: 1rem 1.1rem; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 10px 40px rgba(0, 0, 0, .25); }
.consent p { margin: 0 0 .75rem; font-size: .92rem; }
.consent__actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.consent__actions .btn { flex: 1 1 8rem; min-height: 2.75rem; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media print { .site-header, .site-footer, .ad-slot, .consent, .sidebar, .search-panel { display: none !important; } }

.sources { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.sources h2 { font-size: 1.05rem; margin: 1rem 0 .4rem; }
.sources ul { margin: 0 0 .5rem; }
.sources .updated { margin: 0; color: var(--muted); font-size: .9rem; }
.link-btn { min-height: 2.75rem; }

/* ---------- Compte utilisateur ---------- */
a.icon-btn { text-decoration: none; }
.container--narrow { width: min(100% - 2rem, 860px); }
.account { padding-block: 1.5rem 3rem; }
.account__note { color: var(--muted); font-size: .95rem; margin-top: 2rem; }
.account-grid { display: grid; gap: 1.25rem; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 760px) { .account-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; } }
.account-card { padding: 1.25rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.account-card h2, .account-card h3 { margin-top: 0; }
.account-card .field { margin-bottom: 1rem; }
.account-card .btn { width: 100%; }
.account-top { display: flex; flex-wrap: wrap; gap: .75rem 1rem; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.account-top .lead { margin: 0; }
.account-settings { margin-top: 2.5rem; display: grid; gap: 1.25rem; }
.account-settings > .btn { justify-self: start; }
.form-msg { margin: 0 0 1rem; padding: .7rem .9rem; border-radius: 10px; background: var(--primary-soft); color: var(--ink); }
.form-msg--error { background: var(--danger-bg); color: var(--danger); }
.form-msg:empty { display: none; }
.saved-list { display: grid; gap: 1rem; margin-top: 1rem; }
.saved { padding: 1rem 1.15rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.saved__head { display: flex; flex-wrap: wrap; gap: .25rem 1rem; align-items: baseline; justify-content: space-between; }
.saved__head h3 { margin: 0; font-size: 1.1rem; }
.saved__date { color: var(--muted); font-size: .9rem; }
.saved__main { margin: .5rem 0; font-family: var(--mono); font-weight: 700; }
.saved details { margin: .5rem 0; }
.saved summary { cursor: pointer; font-weight: 600; min-height: 2.75rem; display: flex; align-items: center; }
.saved__list div { display: flex; justify-content: space-between; gap: 1rem; padding: .3rem 0; border-bottom: 1px dashed var(--line); }
.saved__list dt { color: var(--muted); }
.saved__list dd { margin: 0; font-family: var(--mono); text-align: right; }
.saved__actions { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: .75rem; }
.saved__actions .btn { min-height: 2.75rem; padding: 0 1rem; }
.save-bar { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem 1rem; margin: .75rem 0 0; }
.save-bar .btn { min-height: 2.75rem; }
.save-bar__msg { margin: 0; color: var(--muted); font-size: .95rem; }
.save-bar__msg:empty { display: none; }
.account-card .check { display: flex; align-items: flex-start; gap: .7rem; font-weight: 400; line-height: 1.45; cursor: pointer; }
.account-card .check input { flex: none; width: 1.4rem; height: 1.4rem; margin-top: .1rem; accent-color: var(--primary); }
.account-card .check a { font-weight: 600; }
.account-card h2, .account-card h3 { margin-bottom: 1rem; }
.field input[type="email"], .field input[type="password"] { -webkit-appearance: none; appearance: none; }