:root {
  --color-bg: oklch(97% 0.012 255);
  --color-surface: oklch(100% 0 0);
  --color-ink: oklch(22% 0.03 265);
  --color-ink-soft: oklch(46% 0.02 265);
  /* Accent piloté par école : seul --color-accent est surchargé au runtime
     (depuis school.brandColor) ; les nuances en dérivent automatiquement. */
  --color-accent: oklch(52% 0.18 268);
  --color-accent-strong: color-mix(in oklch, var(--color-accent) 82%, black);
  --color-accent-tint: color-mix(in oklch, var(--color-accent) 13%, white);
  --color-ok: oklch(62% 0.16 158);
  --color-warn: oklch(70% 0.17 65);
  --color-line: oklch(90% 0.01 265);
  --color-danger: oklch(55% 0.2 25);

  --radius: 18px;
  --radius-sm: 11px;
  --shadow-card: 0 1px 2px oklch(30% 0.05 265 / 0.06),
    0 14px 40px -18px oklch(30% 0.08 265 / 0.28);

  --text-h1: clamp(1.75rem, 1.2rem + 2.4vw, 2.6rem);
  --space-card: clamp(1.4rem, 1rem + 2vw, 2.4rem);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

/* Class-level display rules below would otherwise override the [hidden]
   attribute (UA display:none) — keep hidden authoritative. */
[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font);
  color: var(--color-ink);
  background:
    radial-gradient(120% 80% at 100% -10%, var(--color-accent-tint), transparent 60%),
    radial-gradient(90% 60% at -10% 0%, oklch(95% 0.04 200), transparent 55%),
    var(--color-bg);
  -webkit-font-smoothing: antialiased;
  display: grid;
  place-items: start center;
}

.shell {
  width: 100%;
  max-width: 32rem;
  padding: clamp(1.25rem, 1rem + 3vw, 3rem) 1.25rem 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ── Hero ── */
.hero { padding: 0 0.25rem; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--color-ink-soft);
  margin-bottom: 1.1rem;
}
.brand-mark { color: var(--color-accent); font-size: 0.7rem; }
.brand-name strong { color: var(--color-ink); font-weight: 700; }
.brand-logo {
  height: 26px;
  width: auto;
  max-width: 120px;
  object-fit: contain;
  margin-right: 0.5rem;
}
.brand-logo[hidden] { display: none; }

h1 {
  font-size: var(--text-h1);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 0.6rem;
  font-weight: 800;
}
.hero-sub {
  margin: 0;
  color: var(--color-ink-soft);
  font-size: 1.02rem;
  line-height: 1.5;
  max-width: 26ch;
}

/* ── Card ── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: var(--space-card);
}

/* ── States ── */
.state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.85rem;
  padding: 1.5rem 0.5rem;
}
.state h2 { margin: 0; font-size: 1.4rem; letter-spacing: -0.01em; }
.state p { margin: 0; color: var(--color-ink-soft); line-height: 1.55; max-width: 32ch; }

.spinner {
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 3px solid var(--color-accent-tint);
  border-top-color: var(--color-accent);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.badge {
  width: 56px; height: 56px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.5rem;
}
.badge-ok { background: oklch(94% 0.06 158); color: var(--color-ok); }
.badge-warn { background: oklch(95% 0.06 65); color: var(--color-warn); }
.state-success .badge-ok { animation: pop 0.5s var(--ease) both; }
@keyframes pop { from { transform: scale(0.4); opacity: 0; } to { transform: scale(1); opacity: 1; } }

/* ── Form ── */
.form { display: flex; flex-direction: column; gap: 1.15rem; }
.form-context {
  margin: 0 0 0.2rem;
  font-size: 0.95rem;
  color: var(--color-ink-soft);
  line-height: 1.5;
}
.form-context strong { color: var(--color-ink); }

.identity {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 1rem 1rem 1.15rem;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.identity legend {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-ink-soft);
  padding: 0 0.4rem;
}
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.85rem; }

.identity-known {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.8rem 1rem;
  background: var(--color-accent-tint);
  border-radius: var(--radius-sm);
}
.identity-known-label { font-size: 0.75rem; color: var(--color-ink-soft); letter-spacing: 0.02em; }
.identity-known-name { font-weight: 700; font-size: 1.05rem; }

.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field > span { font-size: 0.88rem; font-weight: 600; }

input, select {
  font: inherit;
  color: var(--color-ink);
  background: var(--color-surface);
  border: 1.5px solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.85rem;
  width: 100%;
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}
select { appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  padding-right: 2.4rem;
}
input:focus-visible, select:focus-visible {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-tint);
}
.hint { margin: 0; font-size: 0.8rem; color: var(--color-ink-soft); line-height: 1.4; }

.form-error {
  margin: 0;
  font-size: 0.88rem;
  color: var(--color-danger);
  background: oklch(96% 0.04 25);
  border: 1px solid oklch(88% 0.07 25);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.85rem;
}

/* ── Button ── */
.btn {
  position: relative;
  font: inherit;
  font-weight: 700;
  font-size: 1.02rem;
  color: white;
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.95rem 1.2rem;
  cursor: pointer;
  transition: background 0.18s var(--ease), transform 0.12s var(--ease);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}
.btn:hover { background: var(--color-accent-strong); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 4px var(--color-accent-tint); }
.btn[disabled] { opacity: 0.7; cursor: progress; }
.btn-spinner { display: none; width: 17px; height: 17px; border-radius: 50%;
  border: 2.5px solid oklch(100% 0 0 / 0.4); border-top-color: white; animation: spin 0.7s linear infinite; }
.btn[disabled] .btn-spinner { display: inline-block; }

.legal { margin: 0; font-size: 0.74rem; color: var(--color-ink-soft); line-height: 1.45; text-align: center; }

/* ── Footer ── */
.foot { text-align: center; font-size: 0.78rem; color: var(--color-ink-soft); }

@media (max-width: 380px) { .grid-2 { grid-template-columns: 1fr; } }

@media (prefers-reduced-motion: reduce) {
  .spinner, .btn-spinner { animation-duration: 1.5s; }
  .state-success .badge-ok { animation: none; }
  * { transition-duration: 0.01ms !important; }
}