/* Pages institutionnelles — LMD, cours à distance, vie académique,
 * corps enseignant, recherche & publication, agenda, tests académiques.
 *
 * Feuille distincte d'app.css, chargée seulement par ces pages : l'accueil et
 * le catalogue, qui concentrent le trafic, n'ont pas à la télécharger.
 *
 * Elle reprend les couleurs et les polices du thème ; ce qu'elle ajoute, c'est
 * une structure commune — bandeau, fil d'Ariane, sections, cartes — pour que
 * ces pages se ressemblent entre elles sans dupliquer du balisage. */

:root {
    --in-ink:    #16202c;
    --in-muted:  #5b6b7c;
    --in-line:   #e2e8f0;
    --in-bg:     #f6f8fb;
    --in-accent: #14487f;
    --in-gold:   #f4c30a;
}

/* ── Bandeau et fil d'Ariane ─────────────────────────────────────────── */

.in-hero {
    background: linear-gradient(135deg, var(--in-accent) 0%, #0b2f57 100%);
    color: #fff;
    padding: 3rem 1.2rem 2.6rem;
}
.in-hero__inner { max-width: 1100px; margin: 0 auto; }
.in-hero__label {
    display: inline-block; font-size: .75rem; letter-spacing: .12em;
    text-transform: uppercase; color: var(--in-gold); margin-bottom: .6rem;
}
.in-hero h1 { margin: 0 0 .6rem; font-size: clamp(1.6rem, 3.4vw, 2.3rem); line-height: 1.2; }
.in-hero p { margin: 0; max-width: 62ch; opacity: .92; }

.in-crumb {
    background: #fff; border-bottom: 1px solid var(--in-line);
    font-size: .85rem; color: var(--in-muted);
}
.in-crumb__inner { max-width: 1100px; margin: 0 auto; padding: .7rem 1.2rem; }
.in-crumb a { color: var(--in-accent); text-decoration: underline; text-underline-offset: 2px; }
.in-crumb a:hover { text-decoration: underline; }
.in-crumb span { margin: 0 .45rem; opacity: .5; }

/* ── Corps ───────────────────────────────────────────────────────────── */

.in-page { background: var(--in-bg); }
.in-wrap { max-width: 1100px; margin: 0 auto; padding: 2.4rem 1.2rem 3.5rem; }
.in-narrow { max-width: 820px; }

.in-section { margin-bottom: 2.4rem; }
.in-section > h2 {
    font-size: 1.25rem; margin: 0 0 1rem; color: var(--in-ink);
    padding-bottom: .5rem; border-bottom: 2px solid var(--in-gold); display: inline-block;
}
.in-prose { color: #2c3a49; line-height: 1.7; }
.in-prose p { margin: 0 0 1rem; }
.in-prose ul, .in-prose ol { margin: 0 0 1rem; padding-left: 1.3rem; }
.in-prose li { margin-bottom: .4rem; }
.in-prose a { color: var(--in-accent); }

.in-card {
    background: #fff; border: 1px solid var(--in-line);
    border-radius: 10px; padding: 1.4rem;
}
.in-grid { display: grid; gap: 1.1rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.in-card h3 { margin: 0 0 .5rem; font-size: 1.05rem; color: var(--in-accent); }
.in-card p:last-child { margin-bottom: 0; }

/* Cycle LMD : trois paliers */
.in-cycle { display: flex; gap: 1rem; align-items: flex-start; }
.in-cycle__num {
    flex: 0 0 auto; width: 2.6rem; height: 2.6rem; border-radius: 50%;
    background: var(--in-accent); color: #fff; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
}
.in-cycle__years { font-size: .8rem; color: var(--in-muted); }

/* Encadré */
.in-note {
    background: #fffbe8; border-left: 4px solid var(--in-gold);
    padding: 1rem 1.2rem; border-radius: 0 8px 8px 0; margin-bottom: 1.6rem;
}
.in-note p:last-child { margin-bottom: 0; }

/* ── Listes filtrables (recherche, agenda) ───────────────────────────── */

.in-filters {
    display: flex; gap: .6rem; flex-wrap: wrap; align-items: flex-end;
    background: #fff; border: 1px solid var(--in-line); border-radius: 10px;
    padding: 1rem; margin-bottom: 1.6rem;
}
.in-filters label { display: block; font-size: .78rem; color: var(--in-muted); margin-bottom: .2rem; }
.in-filters select, .in-filters input {
    font: inherit; font-size: .9rem; padding: .45rem .6rem;
    border: 1px solid var(--in-line); border-radius: 7px; background: #fff;
}
.in-btn {
    font: inherit; font-size: .9rem; font-weight: 600; padding: .48rem 1rem;
    background: var(--in-accent); color: #fff; border: 1px solid var(--in-accent);
    border-radius: 7px; cursor: pointer; text-decoration: none; display: inline-block;
}
.in-btn:hover { background: #0b2f57; color: #fff; }
.in-btn--ghost { background: none; color: var(--in-accent); border-color: var(--in-line); }
.in-btn--ghost:hover { background: var(--in-bg); color: var(--in-accent); }

.in-items { display: grid; gap: 1rem; }
.in-item {
    background: #fff; border: 1px solid var(--in-line); border-radius: 10px;
    padding: 1.1rem 1.3rem; display: flex; gap: 1.1rem; align-items: flex-start;
}
.in-item h3 { margin: 0 0 .3rem; font-size: 1.02rem; }
.in-item h3 a { color: var(--in-ink); text-decoration: none; }
.in-item h3 a:hover { color: var(--in-accent); }
.in-item__meta { font-size: .84rem; color: var(--in-muted); }
.in-tag {
    display: inline-block; font-size: .74rem; padding: .12rem .5rem;
    background: var(--in-bg); border: 1px solid var(--in-line);
    border-radius: 999px; color: var(--in-muted);
}

/* Pastille de date pour l'agenda */
.in-date {
    flex: 0 0 auto; width: 3.6rem; text-align: center;
    background: var(--in-accent); color: #fff; border-radius: 8px;
    padding: .45rem .2rem; line-height: 1.15;
}
.in-date__d { display: block; font-size: 1.3rem; font-weight: 700; }
.in-date__m { display: block; font-size: .7rem; text-transform: uppercase; letter-spacing: .05em; }
.in-date--past { background: #94a3b8; }

.in-empty { background: #fff; border: 1px dashed var(--in-line); border-radius: 10px; padding: 2.5rem; text-align: center; color: var(--in-muted); }

/* ── Formulaires publics ─────────────────────────────────────────────── */

.in-form label { display: block; font-size: .88rem; font-weight: 600; margin: .9rem 0 .3rem; }
.in-form input, .in-form textarea, .in-form select {
    width: 100%; font: inherit; padding: .6rem .7rem;
    border: 1px solid var(--in-line); border-radius: 7px; background: #fff;
}
.in-form .in-req { color: #b91c1c; }
.in-form .in-hint { font-size: .82rem; color: var(--in-muted); margin-top: .3rem; }
.in-form input:focus-visible, .in-form textarea:focus-visible,
.in-form select:focus-visible, .in-btn:focus-visible, .in-crumb a:focus-visible {
    outline: 3px solid var(--in-gold); outline-offset: 2px;
}

.in-alert { padding: .8rem 1rem; border-radius: 8px; margin-bottom: 1.2rem; font-size: .93rem; }
.in-alert--ok { background: #e6f4ea; color: #14602c; }
.in-alert--ko { background: #fdeced; color: #8a1220; }

/* ── Adaptations ─────────────────────────────────────────────────────── */

@media (max-width: 640px) {
    .in-hero { padding: 2.2rem 1.2rem 2rem; }
    .in-item { flex-direction: column; }
    .in-filters { flex-direction: column; align-items: stretch; }
    .in-filters select, .in-filters input { width: 100%; }
}

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