/* ---------------------------------------------------------------------------
   Feuille de style de l'application.
   --------------------------------------------------------------------------- */

:root {
    --encre:            #1c2430;
    --encre-douce:      #5a6675;
    --encre-tres-douce: #8a94a2;
    --fond:             #f4f6f9;
    --surface:          #ffffff;
    --bordure:           #dde3ea;
    --bordure-forte:     #c3ccd7;

    --accent:       #2f5d8a;
    --accent-fonce: #24486b;
    --accent-pale:  #e8f0f8;

    --succes:      #1f6b45;
    --succes-pale: #e3f3ea;
    --alerte:      #9a3412;
    --alerte-pale: #fbeae4;

    --rayon: 8px;
    --ombre: 0 1px 2px rgba(28, 36, 48, .06), 0 4px 12px rgba(28, 36, 48, .05);
}

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

body {
    margin: 0;
    font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.5;
    color: var(--encre);
    background: var(--fond);
}

h1 { font-size: 1.5rem; margin: 0 0 .25rem; }
h2 { font-size: 1.15rem; margin: 0 0 .75rem; }
h3 { font-size: .95rem; margin: 0 0 .5rem; }

a { color: var(--accent); }

.sous-titre { margin: .25rem 0 0; color: var(--encre-douce); }
.meta       { margin: .35rem 0 0; font-size: .85rem; color: var(--encre-douce); }
.vide       { color: var(--encre-douce); font-style: italic; }

/* --- En-tête -------------------------------------------------------------- */

.entete {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0 1.5rem;
    height: 56px;
    background: var(--surface);
    border-bottom: 1px solid var(--bordure);
}

.marque { font-weight: 650; font-size: 1.05rem; color: var(--encre); text-decoration: none; }

.navigation { display: flex; gap: .25rem; margin-right: auto; }
.navigation a { padding: .4rem .7rem; border-radius: var(--rayon); color: var(--encre-douce); text-decoration: none; }
.navigation a:hover { background: var(--fond); color: var(--encre); }
.navigation a.actif { background: var(--accent-pale); color: var(--accent-fonce); font-weight: 600; }

.bloc-deconnexion { display: flex; align-items: center; gap: .75rem; margin: 0; }
.identite         { font-size: .9rem; color: var(--encre-douce); }

.bouton-lien {
    padding: 0; border: 0; background: none; color: var(--accent);
    font: inherit; font-size: .9rem; cursor: pointer; text-decoration: underline;
}

/* --- Contenu ---------------------------------------------------------------- */

.contenu { max-width: 900px; margin: 0 auto; padding: 1.75rem 1.5rem 4rem; }
.contenu-nu { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 1.5rem; }

.bandeau-page { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.5rem; }

.carte {
    padding: 1.5rem;
    margin-bottom: 1.25rem;
    background: var(--surface);
    border: 1px solid var(--bordure);
    border-radius: var(--rayon);
    box-shadow: var(--ombre);
}

.carte-connexion { width: 100%; max-width: 380px; }
.carte-erreur    { max-width: 520px; margin: 2rem auto; text-align: center; }
.code-erreur     { margin: 0; font-size: 2.5rem; font-weight: 700; color: var(--bordure-forte); }

/* --- Formulaires -------------------------------------------------------- */

form { display: flex; flex-direction: column; gap: .3rem; }

label { font-size: .85rem; font-weight: 600; color: var(--encre-douce); margin-top: .5rem; }

input[type="text"], input[type="email"], input[type="password"], input[type="url"], input[type="number"] {
    padding: .55rem .65rem;
    border: 1px solid var(--bordure-forte);
    border-radius: var(--rayon);
    font: inherit;
    background: var(--surface);
    color: var(--encre);
}

input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.bouton, button {
    padding: .55rem 1rem;
    border: 1px solid var(--bordure-forte);
    border-radius: var(--rayon);
    background: var(--surface);
    color: var(--encre);
    font: inherit;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.bouton:hover, button:hover { background: var(--fond); }

.bouton-principal, button.bouton-principal {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    margin-top: .75rem;
}

.bouton-principal:hover { background: var(--accent-fonce); }

.ligne-formulaire { flex-direction: row; align-items: center; gap: .5rem; flex-wrap: wrap; }
.ligne-formulaire input { flex: 1; min-width: 180px; }
.ligne-formulaire button { margin-top: 0; }

.etiquette-visible-lecteur {
    position: absolute; width: 1px; height: 1px; overflow: hidden;
    clip: rect(0 0 0 0); white-space: nowrap;
}

/* --- Messages ------------------------------------------------------------ */

.message { padding: .6rem .9rem; border-radius: var(--rayon); margin: 0 0 1rem; }
.message-succes { background: var(--succes-pale); color: var(--succes); }
.message-erreur { background: var(--alerte-pale); color: var(--alerte); }
.message-info   { background: var(--accent-pale); color: var(--accent-fonce); }

/* --- Listes de demandes / amis ------------------------------------------ */

.liste-demandes { list-style: none; margin: .5rem 0 0; padding: 0; display: flex; flex-direction: column; gap: .5rem; }
.liste-demandes li {
    display: flex; align-items: center; justify-content: space-between; gap: .75rem;
    padding: .5rem .75rem; background: var(--fond); border-radius: var(--rayon);
}
.actions-ligne { display: flex; gap: .5rem; }
.actions-ligne form { flex-direction: row; }
.actions-ligne button { padding: .35rem .7rem; font-size: .85rem; }

/* --- Sélection des amis et durée ----------------------------------------- */

.controles-horaire { display: flex; flex-wrap: wrap; gap: 1.5rem; align-items: flex-start; margin-bottom: 1.25rem; }

.selection-amis { border: 1px solid var(--bordure); border-radius: var(--rayon); padding: .75rem 1rem; margin: 0; }
.selection-amis legend { font-size: .85rem; font-weight: 600; color: var(--encre-douce); padding: 0 .25rem; }
.case-ami { display: flex; align-items: center; gap: .4rem; font-size: .9rem; font-weight: 400; color: var(--encre); margin: .3rem 0; }
.case-ami input { margin: 0; }

.champ-duree { display: flex; flex-direction: column; }
.champ-duree input { width: 8rem; }

.navigation-semaine { display: flex; gap: .5rem; align-self: flex-end; }
.navigation-semaine button { font-size: .85rem; padding: .5rem .75rem; }

/* --- Grille hebdomadaire -------------------------------------------------- */

.grille-semaine {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: .75rem;
}

.colonne-jour { background: var(--fond); border-radius: var(--rayon); padding: .75rem; min-height: 4rem; }

.liste-creneaux { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .4rem; }

.creneau-libre {
    background: var(--succes-pale);
    color: var(--succes);
    border-radius: var(--rayon);
    padding: .4rem .6rem;
    font-size: .85rem;
    font-weight: 600;
    text-align: center;
}

[aria-busy="true"] { opacity: .5; }