/* SPLITZ · DA papier : crème, encre, rouge. Polices système uniquement (aucune requête vers un tiers). */
:root {
  --bg: #F1EADB;
  --card: #FFFDF8;
  --tile: #F3EEE3;
  --ink: #1F2328;
  --muted: #6B6355;
  --faint: #9A917F;
  --line: #DDD3BF;
  --red: #C8102E;
  --green: #1E8A4C;
  --radius: 22px;
  --title: Futura, "Futura PT", "Century Gothic", "Avenir Next", system-ui, sans-serif;
  --body: "Avenir Next", Avenir, "Segoe UI", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 var(--body);
}
a { color: var(--red); }

.hero { max-width: 640px; margin: 0 auto; padding: 48px 20px 8px; text-align: center; }
.logo { display: block; margin: 0 auto 6px; width: 150px; height: auto; }
.tagline { margin: 0 0 22px; color: var(--red); font-weight: 700; }
h1 { margin: 0 0 14px; font: 700 clamp(30px, 7vw, 44px)/1.1 var(--title); letter-spacing: -0.01em; }
.lead { margin: 0 auto; max-width: 520px; color: var(--muted); font-weight: 600; }

main { max-width: 640px; margin: 0 auto; padding: 24px 16px 40px; }
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 22px 20px 20px;
  margin: 0 0 16px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .05), 0 1px 2px rgba(0, 0, 0, .04);
}
h2 { margin: 0 0 14px; font: 700 22px/1.2 var(--title); }
.step {
  display: inline-grid; place-items: center;
  width: 30px; height: 30px; margin-right: 10px; vertical-align: 2px;
  border-radius: 50%; background: var(--red); color: #fff;
  font: 700 16px var(--title);
}
.legend { margin: 0 4px 12px; font-size: 13px; font-weight: 600; color: var(--muted); }
.sub { margin: 4px 0 8px; font: 700 15px var(--title); color: var(--ink); }

label { display: block; margin: 0 0 12px; font-size: 14px; font-weight: 700; color: var(--muted); }
.grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0 12px; }
.grid.three { grid-template-columns: 1fr 1fr 1fr; }
@media (max-width: 520px) {
  .grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }  /* paires courtes côte à côte, colonnes égales */
  .grid.three { grid-template-columns: 1fr; }
  .grid label:has(input[type=email]), .grid label:has(input[name=instagram]) { grid-column: 1 / -1; }
}
@media (max-width: 360px) { .grid { grid-template-columns: 1fr; } }
.req { color: var(--red); margin-left: 2px; }
.opt { color: var(--faint); font-weight: 600; font-size: 12px; }

input, textarea {
  display: block; width: 100%; margin-top: 6px;
  padding: 12px 14px;
  border: 1.5px solid var(--line); border-radius: 14px;
  background: #fff; color: var(--ink);
  font: 500 16px var(--body);
  -webkit-appearance: none; appearance: none;
}
input:focus, textarea:focus { outline: none; border-color: var(--ink); }
input[aria-invalid="true"] { border-color: var(--red); }
textarea { resize: vertical; }

.drop {
  position: relative; display: block;
  padding: 18px; margin: 4px 0 14px;
  background: var(--tile); border: 2px dashed var(--line); border-radius: 18px;
  cursor: pointer;
}
.drop:hover, .drop.over { border-color: var(--ink); }
.drop.has { border-style: solid; border-color: var(--green); background: #EEF6F0; }
.drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; margin: 0; }
.drop-title { display: block; color: var(--ink); font: 700 17px var(--title); }
.drop-hint { display: block; margin-top: 4px; font-weight: 500; font-size: 13px; color: var(--muted); }
.drop-file { display: block; margin-top: 8px; color: var(--green); font-weight: 700; word-break: break-all; }
.drop-file:empty { display: none; }

.check { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 14px; color: var(--ink); font-weight: 500; }
.check input { flex: 0 0 22px; width: 22px; height: 22px; margin: 1px 0 0; padding: 0; border-radius: 6px; accent-color: var(--red); -webkit-appearance: checkbox; appearance: auto; }
.fine { margin: 6px 0 0; font-size: 13px; color: var(--muted); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

button {
  display: block; width: 100%;
  padding: 17px; margin: 8px 0 0;
  border: 0; border-radius: 999px;
  background: var(--red); color: #fff;
  font: 700 18px var(--title); letter-spacing: .02em;
  cursor: pointer;
}
button:disabled { opacity: .55; cursor: progress; }
.error { margin: 4px 0 8px; padding: 12px 14px; border-radius: 14px; background: #FBE7EA; color: var(--red); font-weight: 700; }
.progress { position: relative; height: 34px; margin-top: 12px; border-radius: 999px; background: var(--tile); overflow: hidden; }
.progress .bar { position: absolute; inset: 0 auto 0 0; width: 0; background: var(--ink); transition: width .2s; }
.progress span { position: relative; display: block; text-align: center; line-height: 34px; font-weight: 700; color: #fff; mix-blend-mode: difference; }

.done { text-align: center; padding: 34px 24px; }
.done h2 { font-size: 30px; margin-top: 10px; }
code { font-size: 13px; background: var(--tile); padding: 2px 6px; border-radius: 6px; }

footer { padding: 10px 16px 40px; text-align: center; color: var(--faint); font-size: 13px; font-weight: 600; }
footer a { color: var(--muted); }

.doc { max-width: 700px; margin: 0 auto; padding: 36px 20px 60px; }
.doc h1 { font-size: 34px; }
.doc h2 { margin-top: 28px; }
.doc p, .doc li { color: var(--ink); }