:root {
  --paper: #fbfaf8;
  --paper-2: #f3f1ec;
  --ink: #1f1d1a;
  --ink-2: #54504a;
  --ink-3: #8a8479;
  --line: #e3ded5;
  --line-2: #d2ccc0;
  --accent: #3a3632; /* neutre volontaire — ne favorise aucune maquette */
  --ok: #2f7d57;
  --radius: 14px;
  --font-serif: "Spectral", Georgia, serif;
  --font-sans: "Inter", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { font-family: var(--font-serif); font-weight: 600; letter-spacing: -0.01em; color: var(--ink); }
a { color: var(--ink); }

/* ---------- Header ---------- */
.site-head {
  position: sticky; top: 0; z-index: 30;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-head__row { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-family: var(--font-serif); font-weight: 600; font-size: 1.05rem; margin: 0; }
.brand span { color: var(--ink-3); font-weight: 400; }
.site-nav { display: flex; gap: 22px; }
.site-nav a { text-decoration: none; font-size: 0.92rem; color: var(--ink-2); padding: 6px 0; border-bottom: 2px solid transparent; }
.site-nav a:hover { border-color: var(--ink); color: var(--ink); }

/* ---------- Intro ---------- */
.intro { padding: 72px 24px 40px; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.18em; font-size: 0.72rem; color: var(--ink-3); margin: 0 0 18px; }
.intro h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); line-height: 1.08; margin: 0 0 22px; max-width: 18ch; }
.lede { font-size: 1.18rem; color: var(--ink-2); max-width: 62ch; margin: 0 0 44px; }
.lede strong { color: var(--ink); }

.why { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; border-top: 1px solid var(--line); padding-top: 36px; }
.why h3 { font-size: 1rem; margin: 0 0 8px; }
.why p { font-size: 0.95rem; color: var(--ink-2); margin: 0; }
@media (max-width: 860px) { .why { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .why { grid-template-columns: 1fr; } }

/* ---------- Section heads ---------- */
.section-head { border-top: 1px solid var(--line); padding-top: 40px; margin: 64px 0 32px; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 0 0 6px; }
.section-head p { color: var(--ink-2); margin: 0; }

/* ---------- Cards (études) ---------- */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
@media (max-width: 760px) { .cards { grid-template-columns: 1fr; } }

.card {
  display: flex; flex-direction: column;
  border: 1px solid var(--line-2); border-radius: var(--radius);
  background: #fff; overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  text-decoration: none; color: inherit;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px -22px rgba(0,0,0,0.4); border-color: var(--ink-3); }

.card__swatch { height: 92px; display: flex; }
.card__swatch span { flex: 1; }

.card__body { padding: 22px 22px 24px; display: flex; flex-direction: column; gap: 14px; }
.card__tag { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.16em; color: var(--ink-3); }
.card__title { font-size: 1.5rem; margin: 0; line-height: 1.1; }
.card__pitch { color: var(--ink-2); font-size: 0.97rem; margin: 0; }

.charte { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: 0.9rem; margin: 4px 0 0; }
.charte dt { color: var(--ink-3); }
.charte dd { margin: 0; color: var(--ink); }

.dots { display: flex; gap: 6px; align-items: center; }
.dots i { width: 16px; height: 16px; border-radius: 50%; display: inline-block; border: 1px solid rgba(0,0,0,0.12); }

.card__cta { margin-top: 6px; font-weight: 600; font-size: 0.92rem; display: inline-flex; align-items: center; gap: 8px; }
.card__cta::after { content: "→"; transition: transform 0.25s ease; }
.card:hover .card__cta::after { transform: translateX(4px); }

/* ---------- Revue / form ---------- */
.revue { padding-bottom: 80px; }
form { margin-top: 8px; }
.q { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin: 0 0 22px; background: #fff; }
.q legend { font-family: var(--font-serif); font-weight: 600; font-size: 1.2rem; padding: 0 8px; display: flex; align-items: center; gap: 10px; }
.q-num { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--ink); color: var(--paper); font-family: var(--font-sans); font-size: 0.85rem; }
.q-help { color: var(--ink-3); font-size: 0.9rem; margin: 4px 0 18px; }

/* Star ratings */
.ratings { display: flex; flex-direction: column; gap: 14px; }
.rating-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 10px 0; border-bottom: 1px dashed var(--line); }
.rating-row:last-child { border-bottom: 0; }
.rating-row .rl { display: flex; align-items: center; gap: 12px; }
.rating-row .chip { width: 26px; height: 26px; border-radius: 6px; border: 1px solid rgba(0,0,0,0.1); }
.rating-row .name { font-weight: 600; }
.stars { display: inline-flex; gap: 4px; }
.stars button { background: none; border: none; cursor: pointer; font-size: 1.5rem; line-height: 1; color: var(--line-2); padding: 2px; transition: transform 0.12s ease, color 0.12s ease; }
.stars button:hover { transform: scale(1.18); }
.stars button.on { color: #e8a72c; }

/* Choice grids */
.choice-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.choice-list { display: flex; flex-direction: column; gap: 10px; }
.choice {
  display: flex; align-items: center; gap: 10px; cursor: pointer;
  border: 1px solid var(--line-2); border-radius: 10px; padding: 12px 14px;
  font-size: 0.95rem; transition: border-color 0.15s ease, background 0.15s ease;
}
.choice:hover { border-color: var(--ink-3); }
.choice input { accent-color: var(--ink); }
.choice.sel { border-color: var(--ink); background: var(--paper-2); }

/* Checkboxes */
.checks { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 18px; }
@media (max-width: 560px) { .checks { grid-template-columns: 1fr; } }
.checks label { display: flex; align-items: center; gap: 10px; cursor: pointer; font-size: 0.95rem; }
.checks input { accent-color: var(--ink); width: 17px; height: 17px; }

textarea, .id-row input {
  width: 100%; border: 1px solid var(--line-2); border-radius: 10px;
  padding: 12px 14px; font: inherit; color: var(--ink); background: var(--paper);
}
textarea:focus, .id-row input:focus { outline: 2px solid var(--ink); border-color: var(--ink); }
.id-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.id-row label { display: flex; flex-direction: column; gap: 8px; font-size: 0.9rem; color: var(--ink-2); }
@media (max-width: 560px) { .id-row { grid-template-columns: 1fr; } }

/* Summary */
.summary { border: 2px solid var(--ink); border-radius: var(--radius); padding: 26px; background: var(--paper-2); margin: 8px 0 24px; }
.summary h3 { margin: 0 0 4px; font-size: 1.3rem; }
.summary__hint { color: var(--ink-3); font-size: 0.88rem; margin: 0 0 18px; }
#summary-body { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 10px 18px; }
#summary-body dt { color: var(--ink-3); font-size: 0.9rem; }
#summary-body dd { margin: 0; font-weight: 500; }
#summary-body .big { font-family: var(--font-serif); font-size: 1.15rem; font-weight: 600; }

/* Submit */
.submit-row { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
#submit-btn {
  background: var(--ink); color: var(--paper); border: none; border-radius: 999px;
  padding: 15px 32px; font: inherit; font-weight: 600; cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
#submit-btn:hover { transform: translateY(-2px); }
#submit-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.submit-note { margin: 0; font-size: 0.92rem; color: var(--ink-2); }
.submit-note.ok { color: var(--ok); font-weight: 600; }
.submit-note.err { color: #b3261e; font-weight: 600; }

/* Footer */
.site-foot { border-top: 1px solid var(--line); padding: 32px 0; margin-top: 40px; }
.site-foot p { color: var(--ink-3); font-size: 0.88rem; margin: 0; }

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto; }
  .card, .stars button, #submit-btn { transition: none; }
}