/* CaisseOutils — design partagé, mobile-first */
:root {
  --bg: #f6f8fb;
  --card: #ffffff;
  --text: #1c2433;
  --muted: #5d6b82;
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-soft: #e8effe;
  --border: #e3e9f2;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(37, 99, 235, .08);
  --ok: #16a34a;
  --warn: #d97706;
  --bad: #dc2626;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 17px;
}

.container { max-width: 1060px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 780px; }

/* ── Header ─────────────────────────────── */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 50;
}
.header-inner {
  display: flex; align-items: center; gap: 18px;
  padding: 14px 0; flex-wrap: wrap;
}
.brand {
  font-weight: 800; font-size: 1.3rem; color: var(--text);
  text-decoration: none; display: flex; align-items: center; gap: 8px;
}
.brand .logo-dot {
  width: 26px; height: 26px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 15px;
}
.brand small { color: var(--primary); font-weight: 800; }
.main-nav { display: flex; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.main-nav a {
  color: var(--muted); text-decoration: none; font-size: .95rem;
  padding: 8px 12px; border-radius: 8px;
}
.main-nav a:hover, .main-nav a.active { background: var(--primary-soft); color: var(--primary-dark); }

/* ── Hero ───────────────────────────────── */
.hero {
  background: linear-gradient(180deg, #eef3ff 0%, var(--bg) 100%);
  padding: 56px 0 40px; text-align: center;
}
.hero h1 { font-size: clamp(1.7rem, 4.5vw, 2.6rem); margin: 0 0 12px; line-height: 1.25; }
.hero p.lead { color: var(--muted); font-size: 1.1rem; max-width: 640px; margin: 0 auto; }

/* ── Cards ──────────────────────────────── */
.tools-grid {
  display: grid; gap: 18px; padding: 36px 0;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .tools-grid { grid-template-columns: repeat(3, 1fr); } }

.tool-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 22px; text-decoration: none; color: inherit;
  box-shadow: var(--shadow); transition: transform .15s ease, box-shadow .15s ease;
  display: flex; flex-direction: column; gap: 10px;
}
.tool-card:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(37,99,235,.14); }
.tool-card .icon { font-size: 2rem; }
.tool-card h2, .tool-card h3 { margin: 0; font-size: 1.15rem; }
.tool-card p { margin: 0; color: var(--muted); font-size: .95rem; flex: 1; }
.tool-card .cta { color: var(--primary); font-weight: 700; font-size: .95rem; }

/* ── Content sections ───────────────────── */
.prose { padding: 12px 0 8px; }
.prose h2 { font-size: 1.45rem; margin: 34px 0 10px; }
.prose p { color: #33415c; }

/* ── Tool panel ─────────────────────────── */
.tool-panel {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 26px 22px; margin: 28px 0;
}
.tool-panel h2 { margin-top: 0; font-size: 1.25rem; }

.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; margin-bottom: 8px; font-size: .98rem; }
.field .hint { font-size: .85rem; color: var(--muted); font-weight: 400; }

input[type="text"], input[type="number"], textarea, select {
  width: 100%; padding: 12px 14px; font-size: 1rem;
  border: 1.5px solid var(--border); border-radius: 10px;
  font-family: inherit; background: #fff; color: var(--text);
}
input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft);
}
textarea { min-height: 180px; resize: vertical; }

input[type="range"] { width: 100%; accent-color: var(--primary); }

.checks { display: grid; gap: 10px; }
.checks label {
  display: flex; align-items: center; gap: 10px; font-weight: 500;
  background: var(--bg); border: 1px solid var(--border);
  padding: 10px 14px; border-radius: 10px; cursor: pointer; margin: 0;
}
.checks input { width: 18px; height: 18px; accent-color: var(--primary); }
.checks code { background: #eef2f7; padding: 1px 7px; border-radius: 6px; font-size: .9em; }

.btn {
  display: inline-block; border: none; cursor: pointer;
  background: var(--primary); color: #fff; font-weight: 700; font-size: 1rem;
  padding: 13px 26px; border-radius: 10px; text-decoration: none;
  transition: background .15s ease;
}
.btn:hover { background: var(--primary-dark); }
.btn-secondary { background: #eef2f7; color: var(--text); }
.btn-secondary:hover { background: #e2e8f0; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }

.result-box {
  background: var(--bg); border: 1.5px dashed var(--border);
  border-radius: 10px; padding: 18px; margin-top: 18px;
}
.result-box .big {
  font-size: 1.6rem; font-weight: 800; color: var(--primary-dark);
  word-break: break-all; font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
.result-row {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 10px 0; border-bottom: 1px solid var(--border); flex-wrap: wrap;
}
.result-row:last-child { border-bottom: none; }
.result-row .k { color: var(--muted); }
.result-row .v { font-weight: 700; }

.stats-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 16px;
}
@media (min-width: 560px) { .stats-grid { grid-template-columns: repeat(3, 1fr); } }
.stat {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px; text-align: center;
}
.stat .n { font-size: 1.5rem; font-weight: 800; color: var(--primary-dark); }
.stat .l { font-size: .85rem; color: var(--muted); }

/* strength meter */
.strength-wrap { margin-top: 14px; }
.strength-bar { height: 10px; background: #eef2f7; border-radius: 99px; overflow: hidden; }
.strength-fill { height: 100%; width: 0; border-radius: 99px; transition: width .3s ease, background .3s ease; }
.strength-label { font-weight: 700; margin-top: 6px; font-size: .95rem; }

/* tables */
.table-wrap { overflow-x: auto; margin-top: 14px; }
table.data { width: 100%; border-collapse: collapse; font-size: .93rem; }
table.data th, table.data td { padding: 10px 12px; text-align: right; border-bottom: 1px solid var(--border); }
table.data th:first-child, table.data td:first-child { text-align: left; }
table.data thead th { background: var(--bg); font-size: .85rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
table.data tbody tr:hover { background: #f8fbff; }

/* FAQ */
.faq { margin: 8px 0 30px; }
.faq details {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 10px; margin-bottom: 10px; padding: 4px 18px;
}
.faq summary { cursor: pointer; font-weight: 700; padding: 14px 0; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--primary); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: #33415c; margin-top: 0; }

/* related tools */
.related { padding: 10px 0 40px; }
.related h2 { font-size: 1.3rem; }
.related-grid { display: grid; gap: 14px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }

/* breadcrumbs */
.crumbs { font-size: .88rem; color: var(--muted); padding: 18px 0 0; }
.crumbs a { color: var(--primary); text-decoration: none; }

/* footer */
.site-footer {
  border-top: 1px solid var(--border); background: var(--card);
  margin-top: 30px; padding: 30px 0; color: var(--muted); font-size: .92rem;
}
.footer-inner { display: flex; gap: 18px; flex-wrap: wrap; justify-content: space-between; align-items: center; }
.site-footer nav { display: flex; gap: 16px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--primary); }