/* ============================================================
   AMSA Assurances - Bienvenue (inscription événements) - Formulaire public
   Couleurs officielles : #00285b (bleu), #fdc600 (jaune), #fff
   ============================================================ */
:root {
    --navy: #00285b;
    --navy-700: #001d43;
    --navy-50: #eef2f8;
    --yellow-50: #fff8dc;
    --yellow-100: #ffefb0;
    --yellow: #fdc600;
    --yellow-600: #e5b300;
    --white: #fff;
    --ink: #1b2433;
    --ink-muted: #5b6577;
    --line: #d8dee8;
    --bg: #fff8dc;
    --error: #c62828;
    --error-bg: #fdecec;
    --radius: 14px;
    --shadow: 0 10px 30px rgba(0, 40, 91, .10);
    --font-title: 'Poppins', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --font-body: 'Open Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
    /* Jetons de thème (clair par défaut) */
    color-scheme: light;
    --surface: #fff;
    --field: #fff;
    --title: var(--navy);
    --focus: var(--navy);
    --soft: var(--yellow-50);
    --soft-line: var(--yellow-100);
    --chip-on: var(--navy);
    --chip-on-ink: #fff;
    --chip-on-mark: var(--yellow);
    --check: var(--navy);
}

/* Mode sombre (suit le réglage de l'appareil, comme la maquette « bienvenue ») : bleu AMSA.
   L'en-tête jaune reste identique ; forcer un thème : <html data-theme="light|dark">. */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        color-scheme: dark;
        --bg: #001a3d;
        --surface: #00285b;
        --field: #001f4a;
        --line: #2a4d82;
        --ink: #eef3fa;
        --ink-muted: #a9b9d2;
        --title: #fdc600;
        --focus: #fdc600;
        --soft: #0a3470;
        --soft-line: #2a4d82;
        --error: #ff8a80;
        --error-bg: #3a1f33;
        --chip-on: #fdc600;
        --chip-on-ink: #00285b;
        --chip-on-mark: #00285b;
        --check: #fdc600;
        --shadow: 0 10px 30px rgba(0, 0, 0, .35);
    }
}
:root[data-theme="dark"] {
    color-scheme: dark;
    --bg: #001a3d;
    --surface: #00285b;
    --field: #001f4a;
    --line: #2a4d82;
    --ink: #eef3fa;
    --ink-muted: #a9b9d2;
    --title: #fdc600;
    --focus: #fdc600;
    --soft: #0a3470;
    --soft-line: #2a4d82;
    --error: #ff8a80;
    --error-bg: #3a1f33;
    --chip-on: #fdc600;
    --chip-on-ink: #00285b;
    --chip-on-mark: #00285b;
    --check: #fdc600;
    --shadow: 0 10px 30px rgba(0, 0, 0, .35);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.5;
    color: var(--ink);
    background: var(--bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-bottom: env(safe-area-inset-bottom, 0px);
}

/* ---------- En-tête ---------- */
.hero {
    background: var(--yellow);
    background-image:
        radial-gradient(circle at 110% -10%, rgba(0, 40, 91, .10) 0, rgba(0, 40, 91, 0) 45%),
        linear-gradient(160deg, #ffd21f 0%, var(--yellow) 60%, #f5bd00 100%);
    color: var(--navy);
    padding: calc(22px + env(safe-area-inset-top, 0px)) 16px 86px;
    text-align: center;
    position: relative;
}
.hero::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 6px;
    background: var(--navy);
}
.hero-inner { max-width: 760px; margin: 0 auto; }

.logo-amsa { height: 92px; width: auto; display: block; margin: 0 auto 14px; }

.hero h1 {
    font-family: var(--font-title);
    font-weight: 700;
    font-size: clamp(1.6rem, 5.6vw, 2.5rem);
    line-height: 1.15;
    margin: 0;
    letter-spacing: .2px;
}
.hero h1::after {
    content: "";
    display: block;
    width: 56px;
    height: 4px;
    margin: 12px auto 0;
    border-radius: 2px;
    background: var(--navy);
}

.event {
    margin: 14px auto 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}
.event-name {
    font-family: var(--font-title);
    font-weight: 600;
    font-size: clamp(1rem, 3.6vw, 1.2rem);
}
.event-meta {
    display: inline-block;
    margin-top: 4px;
    background: rgba(255, 255, 255, .55);
    border-radius: 8px;
    padding: 3px 12px;
    font-weight: 600;
    font-size: .92rem;
}

/* ---------- Conteneur / carte ---------- */
.container {
    width: 100%;
    max-width: 760px;
    margin: -62px auto 0;
    padding: 0 16px 32px;
    flex: 1;
    position: relative;
    z-index: 1;
}
.card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px 20px;
}
@media (min-width: 600px) {
    .card { padding: 34px 38px; }
}
.card-title {
    font-family: var(--font-title);
    color: var(--title);
    font-size: 1.35rem;
    margin: 0 0 4px;
}
.card-intro { color: var(--ink-muted); margin: 0 0 18px; font-size: .94rem; }

/* ---------- Formulaire ---------- */
fieldset {
    border: 0;
    padding: 0;
    margin: 0 0 12px;
    min-width: 0;
}
legend {
    font-family: var(--font-title);
    font-weight: 600;
    font-size: .8rem;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    color: var(--title);
    padding: 0;
    margin: 14px 0 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}
legend::before {
    content: "";
    width: 4px;
    height: 16px;
    border-radius: 2px;
    background: var(--yellow);
}

.grid-2 { display: grid; grid-template-columns: 1fr; gap: 0 16px; }
@media (min-width: 600px) {
    .grid-2 { grid-template-columns: 1fr 1fr; }
}

.field { margin-bottom: 16px; }
.field label {
    display: block;
    font-weight: 600;
    font-size: .9rem;
    color: var(--ink);
    margin-bottom: 6px;
}
.req { color: var(--error); }
.optional { color: var(--ink-muted); font-weight: 400; }

input[type=text], input[type=tel], input[type=email], textarea {
    width: 100%;
    font: inherit;
    font-size: 16px; /* évite le zoom iOS */
    color: var(--ink);
    background: var(--field);
    border: 1.5px solid var(--line);
    border-radius: 10px;
    padding: 12px 14px;
    min-height: 48px;
    transition: border-color .15s, box-shadow .15s;
    -webkit-appearance: none;
    appearance: none;
}
textarea { min-height: 96px; resize: vertical; line-height: 1.45; }
input:focus, textarea:focus {
    outline: none;
    border-color: var(--focus);
    box-shadow: 0 0 0 4px rgba(253, 198, 0, .35);
}
input[aria-invalid=true], textarea[aria-invalid=true] {
    border-color: var(--error);
    background-color: var(--error-bg);
}
.input-upper { text-transform: uppercase; }
.input-upper::placeholder { text-transform: none; }
.field-error {
    color: var(--error);
    font-size: .84rem;
    margin: 6px 0 0;
}

/* ---------- Puces (choix unique) ---------- */
.chips-group { margin: 0 0 16px; }
.chips-label {
    /* annule le style des légendes de section */
    font-family: var(--font-body);
    font-weight: 600;
    font-size: .9rem;
    letter-spacing: 0;
    text-transform: none;
    color: var(--ink);
    margin: 0 0 8px;
}
.chips-label::before { display: none; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip-input { position: absolute; opacity: 0; width: 1px; height: 1px; pointer-events: none; }
.chip {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 9px 18px;
    border: 1.5px solid var(--line);
    border-radius: 999px;
    background: var(--field);
    color: var(--ink);
    font-weight: 600;
    font-size: .95rem;
    cursor: pointer;
    user-select: none;
    transition: background .15s, border-color .15s, color .15s;
}
.chip:hover { border-color: var(--focus); }
.chip-input:checked + .chip {
    background: var(--chip-on);
    border-color: var(--chip-on);
    color: var(--chip-on-ink);
}
.chip-input:checked + .chip::before {
    content: "✓";
    margin-right: 6px;
    color: var(--chip-on-mark);
}
.chip-input:focus-visible + .chip { box-shadow: 0 0 0 4px rgba(253, 198, 0, .45); border-color: var(--focus); }

/* ---------- Accords ---------- */
.field-check {
    background: var(--soft);
    border: 1.5px solid var(--soft-line);
    border-radius: 10px;
    padding: 14px;
    margin-bottom: 10px;
}
.field-check--soft { background: var(--surface); border-color: var(--line); }
.field-check.has-error { border-color: var(--error); background: var(--error-bg); }
.check {
    display: flex !important;
    gap: 12px;
    align-items: flex-start;
    font-weight: 400 !important;
    margin: 0 !important;
    cursor: pointer;
}
.check input {
    flex: 0 0 auto;
    width: 22px;
    height: 22px;
    margin: 1px 0 0;
    accent-color: var(--check);
    cursor: pointer;
}
.legal { color: var(--ink-muted); font-size: .82rem; margin: 10px 0 0; }

/* Piège anti-robot */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------- Boutons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-title);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 10px;
    padding: 14px 22px;
    min-height: 52px;
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: background .15s, transform .05s, box-shadow .15s;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.btn-primary { background: var(--yellow); color: var(--navy); box-shadow: 0 6px 16px rgba(253, 198, 0, .35); }
.btn-primary:hover { background: var(--yellow-600); }
.btn-primary:disabled { opacity: .7; cursor: wait; }
.btn-outline { background: var(--surface); color: var(--title); border-color: var(--title); }
.btn-outline:hover { background: var(--soft); }
.btn-block { width: 100%; margin-top: 18px; font-size: 1.05rem; }

/* ---------- Alertes ---------- */
.alert {
    border-radius: 10px;
    padding: 12px 14px;
    margin-bottom: 18px;
    font-size: .92rem;
}
.alert-error { background: var(--error-bg); color: var(--error); border-left: 4px solid var(--error); }

/* ---------- Écrans de résultat ---------- */
.result { text-align: center; padding-top: 40px; padding-bottom: 40px; }
.result h2 {
    font-family: var(--font-title);
    color: var(--title);
    font-size: clamp(1.5rem, 5vw, 2rem);
    margin: 6px 0 10px;
}
.result p { color: var(--ink-muted); margin: 0 auto 12px; max-width: 500px; }
.result p strong { color: var(--ink); }
.result-icon {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    margin: 0 auto 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--yellow);
}
.result-icon svg {
    width: 40px;
    height: 40px;
    fill: none;
    stroke: var(--navy);
    stroke-width: 2.6;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.result-icon--warn { background: #fff4cc; }
.result-icon--info { background: var(--navy-50); }
.result-slogan { font-family: var(--font-title); color: var(--title) !important; margin-top: 18px !important; }
.result-slogan em { color: inherit; font-style: italic; }
.result .btn { margin-top: 12px; }
.auto-return { font-size: .82rem; margin-top: 14px !important; }
.choice {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 18px;
}
@media (min-width: 520px) {
    .choice { flex-direction: row; justify-content: center; }
}

/* ---------- Pied de page ---------- */
.site-footer {
    text-align: center;
    font-size: .8rem;
    color: var(--ink-muted);
    padding: 0 16px 24px;
}
.site-footer p { margin: 0; }
.footer-slogan { font-family: var(--font-title); color: var(--title); font-size: .92rem; margin-bottom: 4px !important; }
.footer-tel { color: var(--title); font-weight: 700; white-space: nowrap; margin-left: 6px; }

@media (max-width: 380px) {
    .logo-amsa { height: 70px; }
    .chip { padding: 8px 14px; }
}