/* Enquête (docs/02, section 4.1) : une question par écran, typographie de titre géante, un seul moment animé
   (l'arc des données à l'accueil). Univers nuit de Mezigo, cyan d'accent ; volontairement sombre dans les deux modes. */
:root {
  --q-bg: #0b1218;
  --q-raise: #121d25;
  --q-line: #22313b;
  --q-line-hover: #3a5160;
  --q-picked: #0f2a36;
  --q-fg: #e8eff3;
  --q-muted: #94a5b1;
  --q-accent: #62ddfe;
  --q-accent-ink: #062634;
  --q-warm: #ffb38a;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--q-bg);
  color: var(--q-fg);
  font-family: var(--mz-font-body);
  font-size: 17px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--q-accent); }
.shell {
  min-height: 100%;
  display: flex; flex-direction: column;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-block: max(20px, env(safe-area-inset-top, 0px)) max(28px, env(safe-area-inset-bottom, 0px));
}
.top, main, footer { width: 100%; max-width: 46rem; margin-inline: auto; }
.top { display: flex; align-items: center; gap: 16px; }
.brand { display: block; line-height: 0; }
.brand:focus-visible { outline: 2px solid var(--q-accent); outline-offset: 4px; border-radius: 4px; }
.bar { flex: 1; height: 4px; background: var(--q-line); border-radius: 4px; overflow: hidden; }
.bar i { display: block; height: 100%; width: 0; background: var(--q-accent); transition: width .5s cubic-bezier(.2, .8, .2, 1); }
.count { font-variant-numeric: tabular-nums; color: var(--q-muted); font-size: .9rem; min-width: 3.2em; text-align: right; }

main { flex: 1; display: flex; flex-direction: column; justify-content: center; padding-block: 28px; }
main:focus { outline: none; }
.step { display: flex; flex-direction: column; gap: 22px; animation: rise .45s cubic-bezier(.2, .8, .2, 1) both; }
@keyframes rise { from { transform: translateY(14px); } to { transform: none; } }

.eyebrow { font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; color: var(--q-accent); font-weight: 700; }
h1, h2 { font-family: var(--mz-font-display); font-weight: 700; margin: 0; text-wrap: balance; letter-spacing: -0.025em; }
h1 { font-size: clamp(2.6rem, 9vw, 5.2rem); line-height: .95; }
h1 em { font-style: normal; color: var(--q-accent); }
h2 { font-size: clamp(1.7rem, 5.4vw, 2.7rem); line-height: 1.08; }
.lead { color: var(--q-muted); max-width: 36rem; margin: 0; font-size: 1.08rem; }
.lead strong { color: var(--q-fg); }

.arc { width: 100%; max-width: 34rem; height: auto; display: block; }
.arc text { font-family: var(--mz-font-body); font-size: 13px; fill: var(--q-muted); }
.arc .you { fill: var(--q-fg); font-weight: 700; }
.arc .q { font-family: var(--mz-font-display); font-size: 30px; font-weight: 700; fill: var(--q-warm); }
.arc .track { fill: none; stroke: var(--q-line); stroke-width: 2; stroke-dasharray: 3 7; stroke-linecap: round; }
.arc .trail { fill: none; stroke: var(--q-accent); stroke-width: 2.5; stroke-linecap: round; stroke-dasharray: 60 600; animation: travel 3.2s cubic-bezier(.5, 0, .5, 1) infinite; }
.arc .home { fill: var(--q-accent); }
.arc .halo { fill: none; stroke: var(--q-accent); opacity: .35; animation: pulse 2.4s ease-out infinite; transform-origin: 46px 120px; }
@keyframes travel { from { stroke-dashoffset: 60; } to { stroke-dashoffset: -480; } }
@keyframes pulse { from { transform: scale(.6); opacity: .5; } to { transform: scale(2.2); opacity: 0; } }

.options { display: grid; gap: 10px; }
.opt {
  display: flex; align-items: center; gap: 14px; width: 100%;
  text-align: left; font: inherit; color: var(--q-fg);
  background: var(--q-raise); border: 1.5px solid var(--q-line); border-radius: 12px;
  padding: 14px 16px; cursor: pointer;
  transition: border-color .15s, background .15s, transform .15s;
}
.opt:hover { border-color: var(--q-line-hover); }
.opt:active { transform: scale(.99); }
.opt:focus-visible { outline: 2px solid var(--q-accent); outline-offset: 2px; }
.opt .key {
  flex: none; width: 28px; height: 28px; border-radius: 7px;
  display: grid; place-items: center;
  font-family: var(--mz-font-display); font-weight: 700; font-size: .85rem;
  border: 1.5px solid var(--q-line); color: var(--q-muted);
}
.opt .txt { min-width: 0; }
.opt small { display: block; color: var(--q-muted); font-size: .88rem; }
.opt[aria-pressed="true"] { border-color: var(--q-accent); background: var(--q-picked); }
.opt[aria-pressed="true"] .key { background: var(--q-accent); border-color: var(--q-accent); color: var(--q-accent-ink); }

.scale { grid-template-columns: repeat(5, 1fr); gap: 8px; }
.scale .opt { flex-direction: column; align-items: center; text-align: center; gap: 8px; padding: 14px 6px; }
.scale .num { font-family: var(--mz-font-display); font-weight: 700; font-size: 1.6rem; line-height: 1; }
.scale small { font-size: .8rem; line-height: 1.25; }
@media (max-width: 560px) {
  .scale { grid-template-columns: 1fr; }
  .scale .opt { flex-direction: row; text-align: left; padding: 12px 16px; }
  .scale .num { font-size: 1.25rem; width: 28px; text-align: center; }
}

.react { border-left: 3px solid var(--q-warm); padding: 4px 0 4px 16px; max-width: 38rem; margin: 0; animation: rise .4s cubic-bezier(.2, .8, .2, 1) both; }
.react b { color: var(--q-warm); }

textarea {
  width: 100%; min-height: 7.5rem; resize: vertical; font: inherit; color: var(--q-fg);
  background: var(--q-raise); border: 1.5px solid var(--q-line); border-radius: 12px; padding: 14px 16px;
}
textarea:focus { outline: none; border-color: var(--q-accent); }

.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.btn {
  display: inline-block; font: inherit; font-weight: 700; cursor: pointer; text-decoration: none;
  background: var(--q-accent); color: var(--q-accent-ink);
  border: 0; border-radius: 999px; padding: 13px 24px;
  transition: transform .15s, opacity .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible { outline: 2px solid var(--q-fg); outline-offset: 3px; }
.btn[disabled] { opacity: .35; cursor: default; transform: none; }
.ghost { background: none; color: var(--q-muted); border: 0; font: inherit; cursor: pointer; padding: 8px 4px; text-decoration: underline; text-underline-offset: 3px; }
.ghost:focus-visible { outline: 2px solid var(--q-accent); outline-offset: 2px; }
.hint { color: var(--q-muted); font-size: .85rem; margin: 0; }
.hint kbd { font-family: inherit; border: 1px solid var(--q-line); border-radius: 4px; padding: 0 5px; }

.profile { background: var(--q-raise); border: 1.5px solid var(--q-line); border-radius: 16px; padding: 22px; display: grid; gap: 8px; }
.profile .tag { font-family: var(--mz-font-display); font-weight: 700; font-size: clamp(1.8rem, 6vw, 2.6rem); color: var(--q-accent); line-height: 1; }
.profile p { margin: 0; color: var(--q-muted); }
.sign { color: var(--q-muted); font-size: .9rem; margin: 0; }
.sign strong { color: var(--q-fg); }

footer { color: var(--q-muted); font-size: .8rem; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* Téléphone d'abord : le lien circule par WhatsApp, l'accueil tient dans un écran et les cibles font 48 px au moins. */
@media (max-width: 560px) {
  body { font-size: 16.5px; }
  main { justify-content: flex-start; padding-block: 22px 16px; }
  .step { gap: 18px; }
  h1 { font-size: clamp(2.5rem, 13vw, 3.4rem); }
  h2 { font-size: clamp(1.55rem, 7.4vw, 2rem); }
  .lead { font-size: 1rem; }
  .arc { margin-block: -6px; }
  .arc text { font-size: 19px; }
  .arc .q { font-size: 40px; }
  .opt { min-height: 56px; padding: 12px 14px; }
  .actions { gap: 10px; }
  .actions .btn { flex: 1 1 100%; text-align: center; padding-block: 15px; font-size: 1.05rem; }
  .ghost { min-height: 44px; }
  footer { padding-top: 8px; }
}