/* Style neutre — polices système, aucune dépendance externe. */

:root {
    --texte: #1f2933;
    --muet: #6b7280;
    --accent: #3d5a80;
    --accent-clair: #dbe4ef;
    --fond: #eceef1;
    --carte: #ffffff;
    --ligne: #e2e5e9;
    --erreur: #b23b4a;
    --erreur-fond: #fbe9eb;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    color: var(--texte);
    background: var(--fond);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.scene { width: 100%; max-width: 460px; }

.entete { text-align: center; margin-bottom: 1.5rem; }
.entete-titre { font-size: 1.5rem; font-weight: 600; margin: 0; }

.carte {
    background: var(--carte);
    border: 1px solid var(--ligne);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 8px 24px rgba(31, 41, 51, 0.08);
}

/* ---------- Calendrier ---------- */

.cal-tete {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.cal-titre { font-size: 1.15rem; font-weight: 600; margin: 0; text-transform: capitalize; }

.cal-nav {
    width: 36px; height: 36px;
    border: 1px solid var(--ligne);
    background: transparent;
    border-radius: 8px;
    font-size: 1.2rem; line-height: 1;
    color: var(--accent);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}
.cal-nav:hover { background: var(--accent-clair); border-color: var(--accent); }
.cal-nav:disabled { opacity: 0.35; cursor: not-allowed; }

.cal-grille { display: grid; grid-template-columns: repeat(7, 1fr); gap: 3px; }

.cal-entete {
    text-align: center;
    font-size: 0.7rem; letter-spacing: 0.05em; text-transform: uppercase;
    color: var(--muet);
    padding-bottom: 0.4rem;
}

.cal-jour {
    aspect-ratio: 1;
    display: flex; align-items: center; justify-content: center;
    border: none; background: transparent;
    border-radius: 8px;
    font-family: inherit; font-size: 0.9rem;
    color: var(--texte); cursor: pointer;
    transition: background 0.12s, color 0.12s;
}
.cal-jour:not(.cal-vide):not(.cal-passe):hover { background: var(--accent-clair); }
.cal-vide { cursor: default; }
.cal-passe { color: var(--ligne); cursor: not-allowed; }
.cal-selectionne, .cal-selectionne:hover { background: var(--accent); color: #fff; }

.cal-resume {
    font-size: 0.85rem; color: var(--muet);
    margin: 1rem 0 0;
}

/* ---------- Séparation calendrier / formulaire ---------- */

#formulaire {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--ligne);
}

/* ---------- Formulaire ---------- */

.form-rangee { display: flex; gap: 0.85rem; margin-bottom: 1rem; }
.form-champ { flex: 1; display: flex; flex-direction: column; }

.form-champ label {
    font-size: 0.75rem; letter-spacing: 0.03em; text-transform: uppercase;
    color: var(--muet); margin-bottom: 0.35rem;
}

.form-champ input, .form-champ select {
    font-family: inherit; font-size: 0.92rem; color: var(--texte);
    padding: 0.6rem 0.7rem;
    border: 1px solid var(--ligne); border-radius: 8px; background: #fff;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.form-champ input:focus, .form-champ select:focus {
    outline: none; border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-clair);
}

.form-erreur {
    color: var(--erreur); font-size: 0.85rem;
    background: var(--erreur-fond);
    padding: 0.6rem 0.8rem; border-radius: 8px; margin: 0 0 1rem;
}

.form-envoyer {
    width: 100%; margin-top: 0.3rem;
    border: none;
    background: var(--accent); color: #fff;
    font-family: inherit; font-size: 0.9rem; font-weight: 500;
    padding: 0.7rem 1.2rem; border-radius: 8px;
    cursor: pointer; transition: background 0.15s;
}
.form-envoyer:hover:not(:disabled) { background: #32496a; }
.form-envoyer:disabled { opacity: 0.4; cursor: not-allowed; }

.form-succes { text-align: center; padding: 1.25rem 0.5rem 0.25rem; }
.form-succes-titre { font-size: 1.2rem; font-weight: 600; color: var(--accent); margin: 0 0 0.4rem; }
.form-succes-texte { font-size: 0.92rem; color: var(--muet); margin: 0; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

@media (max-width: 400px) {
    .form-rangee { flex-direction: column; gap: 1rem; }
    .carte { padding: 1.2rem; }
}