/* ============================================================
   IBSA Portal – Design System v2 (inspiré SupBiotech)
   Institut de Biologie et de Sécurité Agro-Alimentaire
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

/* ── Variables ──────────────────────────────────────────── */
:root {
    /* Brand greens */
    --ibsa-vert:        #065f46;
    --ibsa-vert-med:    #059669;
    --ibsa-vert-vif:    #10b981;
    --ibsa-vert-clair:  #d1fae5;
    --ibsa-vert-pale:   #ecfdf5;

    /* Neutrals */
    --ibsa-dark:        #0f172a;
    --ibsa-texte:       #1e293b;
    --ibsa-texte-sec:   #64748b;
    --ibsa-fond:        #f8fafc;
    --ibsa-blanc:       #ffffff;
    --ibsa-gris:        #e2e8f0;
    --ibsa-gris-med:    #cbd5e1;
    --ibsa-border:      #e2e8f0;

    /* Accent colors */
    --ibsa-teal:        #0d9488;
    --ibsa-bleu:        #1e40af;
    --ibsa-bleu-med:    #3b82f6;
    --ibsa-bleu-pale:   #dbeafe;
    --ibsa-rouge:       #dc2626;
    --ibsa-rouge-light: rgba(220,38,38,.08);
    --ibsa-or:          #d97706;
    --ibsa-violet:      #7c3aed;

    /* Sizing */
    --radius-xs:    .25rem;
    --radius-sm:    .375rem;
    --radius:       .5rem;
    --radius-lg:    .75rem;
    --radius-xl:    1.25rem;
    --radius-2xl:   1.75rem;
    --radius-full:  999px;

    /* Shadows */
    --shadow-xs:    0 1px 2px rgba(0,0,0,.05);
    --shadow:       0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
    --shadow-md:    0 4px 12px rgba(0,0,0,.08);
    --shadow-lg:    0 10px 30px rgba(0,0,0,.10), 0 4px 10px rgba(0,0,0,.05);
    --shadow-xl:    0 20px 50px rgba(0,0,0,.14);

    /* Transitions */
    --t:            .22s ease;
    --t-slow:       .4s ease;
}

/* ── Reset / Base ────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--ibsa-blanc);
    color: var(--ibsa-texte);
    line-height: 1.65;
    margin: 0;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--ibsa-vert-med); text-decoration: none; transition: color var(--t); }
a:hover { color: var(--ibsa-vert); }

img { max-width: 100%; height: auto; }

/* ── Top Utility Bar ─────────────────────────────────────── */
.ibsa-topbar {
    background: var(--ibsa-dark);
    color: rgba(255,255,255,.7);
    font-size: .78rem;
    padding: .45rem 0;
    border-bottom: 1px solid rgba(255,255,255,.05);
}
.ibsa-topbar a {
    color: rgba(255,255,255,.7);
    transition: color var(--t);
}
.ibsa-topbar a:hover { color: #6ee7b7; }
.topbar-contact { display: flex; align-items: center; gap: 1.25rem; }
.topbar-contact-item { display: flex; align-items: center; gap: .4rem; }
.topbar-contact-item i { color: #6ee7b7; font-size: .75rem; }
.topbar-right { display: flex; align-items: center; gap: .75rem; justify-content: flex-end; }
.topbar-social { display: flex; gap: .5rem; }
.topbar-social a {
    width: 26px; height: 26px; border-radius: 50%;
    background: rgba(255,255,255,.08);
    display: flex; align-items: center; justify-content: center;
    font-size: .72rem; transition: all var(--t);
}
.topbar-social a:hover { background: var(--ibsa-vert-med); color: #fff; }
.topbar-divider { width: 1px; height: 14px; background: rgba(255,255,255,.15); }

/* ── Navbar ──────────────────────────────────────────────── */
.ibsa-navbar {
    background: var(--ibsa-blanc);
    border-bottom: 1px solid var(--ibsa-gris);
    padding: .7rem 0;
    transition: box-shadow var(--t), padding var(--t);
    position: sticky;
    top: 0;
    z-index: 1050;
}
.ibsa-navbar.scrolled {
    box-shadow: 0 2px 20px rgba(0,0,0,.08);
    padding: .5rem 0;
}

.ibsa-brand {
    display: flex;
    align-items: center;
    gap: .75rem;
    text-decoration: none;
}
.brand-logo-img {
    height: 46px;
    width: auto;
    border-radius: var(--radius-sm);
    object-fit: contain;
}
.brand-logo-fallback {
    width: 46px; height: 46px;
    background: linear-gradient(135deg, var(--ibsa-vert), var(--ibsa-vert-vif));
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem; font-weight: 900; color: #fff;
    letter-spacing: -.02em;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.18; }
.brand-name {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--ibsa-vert);
    letter-spacing: -.02em;
}
.brand-tagline {
    font-size: .62rem;
    color: var(--ibsa-texte-sec);
    text-transform: uppercase;
    letter-spacing: .07em;
    font-weight: 500;
}

.ibsa-navbar .nav-link {
    color: var(--ibsa-texte);
    font-weight: 500;
    font-size: .875rem;
    padding: .5rem .8rem !important;
    border-radius: var(--radius-sm);
    transition: all var(--t);
    position: relative;
}
.ibsa-navbar .nav-link:hover { color: var(--ibsa-vert); background: var(--ibsa-vert-pale); }
.ibsa-navbar .nav-link.active { color: var(--ibsa-vert); font-weight: 600; }
.ibsa-navbar .nav-link.active::after {
    content: '';
    position: absolute; bottom: -1px; left: .8rem; right: .8rem;
    height: 2px; background: var(--ibsa-vert-med); border-radius: 1px;
}

/* Dropdown mega */
.ibsa-navbar .dropdown-menu {
    border: 1px solid var(--ibsa-gris);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: .6rem;
    margin-top: .5rem;
    min-width: 320px;
    animation: dropFade .18s ease;
}
@keyframes dropFade {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}
.ibsa-navbar .dropdown-item {
    border-radius: var(--radius-sm);
    padding: .55rem .75rem;
    font-size: .875rem;
    color: var(--ibsa-texte);
    font-weight: 500;
    transition: all var(--t);
    display: flex; align-items: center; gap: .6rem;
}
.ibsa-navbar .dropdown-item:hover { background: var(--ibsa-vert-pale); color: var(--ibsa-vert); }
.ibsa-navbar .dropdown-item .drop-icon {
    width: 32px; height: 32px; border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: .85rem; flex-shrink: 0;
}
.ibsa-navbar .dropdown-item .drop-text {}
.ibsa-navbar .dropdown-item .drop-title { font-weight: 600; font-size: .85rem; line-height: 1.2; }
.ibsa-navbar .dropdown-item .drop-desc { font-size: .74rem; color: var(--ibsa-texte-sec); margin-top: .05rem; font-weight: 400; }
.ibsa-navbar .dropdown-divider { margin: .4rem 0; border-color: var(--ibsa-gris); }

.navbar-actions { display: flex; align-items: center; gap: .5rem; }
.navbar-toggler { border-color: var(--ibsa-gris); }
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(6,95,70,.15); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn-ibsa-primary {
    display: inline-flex; align-items: center; gap: .4rem;
    background: var(--ibsa-vert);
    color: #fff; border: 2px solid transparent;
    padding: .7rem 1.5rem; border-radius: var(--radius-sm);
    font-weight: 700; font-size: .875rem; cursor: pointer;
    transition: all var(--t); text-decoration: none; letter-spacing: .01em;
    white-space: nowrap;
}
.btn-ibsa-primary:hover {
    background: #054436;
    color: #fff; transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(6,95,70,.35);
}
.btn-ibsa-primary:active { transform: translateY(0); }

.btn-ibsa-secondary {
    display: inline-flex; align-items: center; gap: .4rem;
    background: transparent;
    color: var(--ibsa-vert); border: 2px solid var(--ibsa-vert);
    padding: .65rem 1.4rem; border-radius: var(--radius-sm);
    font-weight: 700; font-size: .875rem; cursor: pointer;
    transition: all var(--t); text-decoration: none;
    white-space: nowrap;
}
.btn-ibsa-secondary:hover {
    background: var(--ibsa-vert); color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(6,95,70,.25);
}

.btn-ibsa-ghost {
    display: inline-flex; align-items: center; gap: .4rem;
    background: rgba(255,255,255,.1);
    color: #fff; border: 1.5px solid rgba(255,255,255,.4);
    padding: .65rem 1.4rem; border-radius: var(--radius-sm);
    font-weight: 700; font-size: .875rem; cursor: pointer;
    transition: all var(--t); text-decoration: none;
    white-space: nowrap; backdrop-filter: blur(6px);
}
.btn-ibsa-ghost:hover {
    background: rgba(255,255,255,.2); color: #fff;
    border-color: rgba(255,255,255,.7);
}

.btn-ibsa-white {
    display: inline-flex; align-items: center; gap: .4rem;
    background: #fff; color: var(--ibsa-vert);
    border: 2px solid #fff;
    padding: .7rem 1.5rem; border-radius: var(--radius-sm);
    font-weight: 700; font-size: .875rem; cursor: pointer;
    transition: all var(--t); text-decoration: none;
    white-space: nowrap;
}
.btn-ibsa-white:hover {
    background: var(--ibsa-vert-pale); color: var(--ibsa-vert);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(0,0,0,.15);
}

.btn-ibsa-gold {
    display: inline-flex; align-items: center; gap: .4rem;
    background: linear-gradient(135deg, #b45309, var(--ibsa-or));
    color: #fff; border: 2px solid transparent;
    padding: .65rem 1.4rem; border-radius: var(--radius-sm);
    font-weight: 700; font-size: .85rem; cursor: pointer;
    transition: all var(--t); text-decoration: none;
    white-space: nowrap;
}
.btn-ibsa-gold:hover {
    background: linear-gradient(135deg, #92400e, #b45309);
    color: #fff; transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(180,83,9,.3);
}

.btn-link-ibsa {
    background: none; border: none; color: var(--ibsa-vert-med);
    font-weight: 600; cursor: pointer; padding: 0; font-size: inherit;
    transition: color var(--t); text-decoration: none;
    display: inline-flex; align-items: center; gap: .3rem;
}
.btn-link-ibsa:hover { color: var(--ibsa-vert); }
.btn-link-ibsa i { transition: transform var(--t); }
.btn-link-ibsa:hover i { transform: translateX(3px); }

/* ── Hero badge ──────────────────────────────────────────── */
.hero-badge {
    display: inline-flex; align-items: center; gap: .45rem;
    background: rgba(110,231,183,.15); color: #6ee7b7;
    border: 1px solid rgba(110,231,183,.3); border-radius: var(--radius-full);
    padding: .35rem 1rem; font-size: .8rem; font-weight: 600;
    letter-spacing: .04em; backdrop-filter: blur(6px);
    margin-bottom: 1rem;
}

/* ── Hero section ────────────────────────────────────────── */
.hero-ibsa {
    background: var(--ibsa-dark);
    background-image: url('https://images.unsplash.com/photo-1638636214032-581196ffd400?auto=format&fit=crop&w=1920&h=900&q=80');
    background-size: cover;
    background-position: center top;
    padding: 7rem 0 6rem;
    position: relative;
    overflow: hidden;
    min-height: 88vh;
    display: flex; align-items: center;
}
.hero-ibsa::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(
        110deg,
        rgba(6,10,25,.93) 0%,
        rgba(6,95,70,.82) 50%,
        rgba(6,10,25,.70) 100%
    );
    z-index: 0;
}
/* Subtle pattern overlay */
.hero-ibsa::after {
    content: '';
    position: absolute; inset: 0;
    background-image: radial-gradient(circle at 20% 50%, rgba(16,185,129,.08) 0%, transparent 60%),
                      radial-gradient(circle at 80% 20%, rgba(59,130,246,.06) 0%, transparent 50%);
    z-index: 0;
}
.hero-ibsa .container { position: relative; z-index: 1; }

.hero-headline {
    font-size: clamp(2.1rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.08;
    letter-spacing: -.03em;
    color: #fff;
    margin: 0 0 1.25rem;
}
.hero-headline .accent { color: #6ee7b7; }

.hero-sub {
    color: rgba(255,255,255,.78);
    font-size: 1.05rem;
    line-height: 1.75;
    max-width: 520px;
    margin-bottom: 2.25rem;
    font-weight: 400;
}

.hero-stats {
    display: flex; flex-wrap: wrap; gap: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,.12);
    margin-top: .5rem;
}
.hero-stat-val {
    font-size: 1.9rem; font-weight: 900; line-height: 1;
    color: #6ee7b7; letter-spacing: -.02em;
}
.hero-stat-label {
    font-size: .75rem; color: rgba(255,255,255,.6);
    margin-top: .2rem; font-weight: 500;
}

/* Hero floating card */
.hero-card {
    background: rgba(255,255,255,.07);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: var(--radius-2xl);
    padding: 2rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}
.hero-card-mini {
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: var(--radius-lg);
    padding: .85rem 1rem;
    display: flex; align-items: center; gap: .8rem;
}
.hero-card-mini-icon {
    width: 38px; height: 38px; border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem; flex-shrink: 0;
}

/* ── Stats band ──────────────────────────────────────────── */
.stats-band {
    background: var(--ibsa-vert);
    padding: 3.5rem 0;
    position: relative;
    overflow: hidden;
}
.stats-band::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(135deg, #044033 0%, var(--ibsa-vert) 50%, #0d9488 100%);
}
.stats-band .container { position: relative; z-index: 1; }
.stat-item { text-align: center; }
.stat-big-val {
    font-size: 2.5rem; font-weight: 900; line-height: 1;
    color: #fff; letter-spacing: -.03em;
}
.stat-big-val span { color: #6ee7b7; }
.stat-big-label {
    font-size: .82rem; color: rgba(255,255,255,.7);
    margin-top: .35rem; font-weight: 500;
}
.stat-icon-wrap {
    width: 48px; height: 48px; border-radius: var(--radius-lg);
    background: rgba(255,255,255,.12);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; color: #6ee7b7;
    margin: 0 auto .6rem;
}

/* ── Sections ────────────────────────────────────────────── */
.section-pub    { padding: 5rem 0; }
.section-pub-sm { padding: 3.5rem 0; }
.section-alt    { background: var(--ibsa-fond); }
.section-dark   {
    background: var(--ibsa-dark);
    position: relative; overflow: hidden;
}
.section-dark::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse at top left, rgba(6,95,70,.4) 0%, transparent 60%),
                radial-gradient(ellipse at bottom right, rgba(30,64,175,.2) 0%, transparent 60%);
}
.section-dark .container { position: relative; z-index: 1; }

.section-header { margin-bottom: 3rem; }
.section-tag {
    display: inline-flex; align-items: center; gap: .4rem;
    background: var(--ibsa-vert-pale); color: var(--ibsa-vert);
    border-radius: var(--radius-full); padding: .3rem .9rem;
    font-size: .76rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: .08em; margin-bottom: .85rem;
}
.section-header h2 {
    font-size: clamp(1.65rem, 3.5vw, 2.35rem);
    font-weight: 800;
    color: var(--ibsa-dark);
    margin-bottom: .6rem;
    letter-spacing: -.02em;
    line-height: 1.15;
}
.section-dark .section-header h2 { color: #fff; }
.section-divider {
    width: 48px; height: 3px;
    background: linear-gradient(90deg, var(--ibsa-vert), var(--ibsa-vert-vif));
    border-radius: 2px; margin: .75rem auto 1.1rem;
}
.section-subtitle {
    color: var(--ibsa-texte-sec);
    font-size: .95rem;
    max-width: 580px;
    margin: 0 auto;
    line-height: 1.7;
}
.section-dark .section-subtitle { color: rgba(255,255,255,.65); }

/* ── Feature cards ───────────────────────────────────────── */
.feature-card {
    background: var(--ibsa-blanc);
    border: 1px solid var(--ibsa-gris);
    border-radius: var(--radius-xl);
    padding: 2rem 1.75rem;
    text-align: left;
    transition: all var(--t);
    height: 100%;
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--ibsa-vert), var(--ibsa-vert-vif));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--t);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}
.feature-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: transparent; }
.feature-card:hover::before { transform: scaleX(1); }

.feature-icon {
    width: 56px; height: 56px; border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.35rem; margin-bottom: 1.25rem;
}
.feature-card h5 { font-weight: 700; font-size: .95rem; color: var(--ibsa-dark); margin-bottom: .5rem; }
.feature-card p { font-size: .86rem; color: var(--ibsa-texte-sec); margin: 0; line-height: 1.7; }

/* ── Filière cards ───────────────────────────────────────── */
.filiere-card {
    background: var(--ibsa-blanc);
    border: 1px solid var(--ibsa-gris);
    border-radius: var(--radius-xl);
    padding: 0;
    transition: all var(--t);
    height: 100%; display: flex; flex-direction: column;
    overflow: hidden;
    position: relative;
}
.filiere-card:hover { box-shadow: var(--shadow-xl); transform: translateY(-5px); border-color: transparent; }
.filiere-card-header {
    padding: 1.75rem 1.75rem 1.25rem;
    display: flex; align-items: flex-start; gap: 1rem;
}
.filiere-icon {
    width: 52px; height: 52px; border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem; flex-shrink: 0;
}
.filiere-card-body { padding: 0 1.75rem 1.75rem; flex: 1; display: flex; flex-direction: column; }
.filiere-level-badge {
    display: inline-flex; align-items: center; gap: .3rem;
    font-size: .68rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: .08em; margin-bottom: .5rem;
}
.filiere-card h5 { font-weight: 700; font-size: 1rem; color: var(--ibsa-dark); margin-bottom: .6rem; line-height: 1.3; }
.filiere-card p { font-size: .85rem; color: var(--ibsa-texte-sec); line-height: 1.7; flex: 1; margin: 0 0 1.25rem; }
.filiere-card-footer {
    padding: 1rem 1.75rem;
    border-top: 1px solid var(--ibsa-gris);
    display: flex; align-items: center; justify-content: space-between;
}
.filiere-link {
    font-size: .82rem; font-weight: 700;
    display: inline-flex; align-items: center; gap: .35rem;
    transition: gap var(--t);
}
.filiere-link:hover { gap: .6rem; }
.filiere-link i { font-size: .75rem; transition: transform var(--t); }

/* ── Testimonial cards ───────────────────────────────────── */
.temoignage-card {
    background: var(--ibsa-blanc);
    border: 1px solid var(--ibsa-gris);
    border-radius: var(--radius-xl);
    padding: 2rem;
    height: 100%;
    transition: box-shadow var(--t), transform var(--t);
    position: relative;
}
.temoignage-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.temoignage-quote {
    font-size: 4rem; line-height: 1;
    color: var(--ibsa-vert); opacity: .12;
    position: absolute; top: 1rem; right: 1.5rem;
    font-family: Georgia, serif; pointer-events: none;
}
.temoignage-stars {
    display: flex; gap: .2rem; margin-bottom: 1rem;
}
.temoignage-stars i { color: #f59e0b; font-size: .85rem; }
.temoignage-text {
    font-style: italic; font-size: .9rem;
    color: var(--ibsa-texte); line-height: 1.8;
    margin-bottom: 1.5rem;
}
.t-avatar {
    width: 44px; height: 44px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: .9rem; font-weight: 800; color: #fff; flex-shrink: 0;
}
.t-name { font-weight: 700; font-size: .88rem; color: var(--ibsa-dark); }
.t-role { font-size: .76rem; color: var(--ibsa-texte-sec); margin-top: .1rem; }

/* ── Formation card ──────────────────────────────────────── */
.formation-card {
    background: var(--ibsa-blanc);
    border: 1px solid var(--ibsa-gris);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: box-shadow var(--t), transform var(--t);
    height: 100%; display: flex; flex-direction: column;
}
.formation-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.formation-card-img {
    width: 100%; height: 190px; object-fit: cover;
    display: flex; align-items: center; justify-content: center;
    font-size: 3.5rem; position: relative; overflow: hidden;
}
.formation-card-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.formation-badge {
    display: inline-flex; align-items: center;
    background: var(--ibsa-vert-pale); color: var(--ibsa-vert);
    border-radius: var(--radius-full); font-size: .68rem; font-weight: 700;
    padding: .2rem .75rem; margin-bottom: .7rem;
    text-transform: uppercase; letter-spacing: .06em;
}
.formation-badge.master { background: #ede9fe; color: #6d28d9; }
.formation-badge.certificat { background: #fef9c3; color: #854d0e; }

/* ── Stat card ───────────────────────────────────────────── */
.stat-card {
    background: var(--ibsa-blanc);
    border: 1px solid var(--ibsa-gris);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    transition: box-shadow var(--t);
    display: flex; align-items: center; gap: 1.1rem;
}
.stat-card:hover { box-shadow: var(--shadow-md); }
.stat-icon {
    width: 52px; height: 52px; border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem; flex-shrink: 0;
}
.stat-val   { font-size: 1.65rem; font-weight: 800; line-height: 1; color: var(--ibsa-dark); }
.stat-label { font-size: .78rem; color: var(--ibsa-texte-sec); margin-top: .2rem; }

/* ── Partners strip ──────────────────────────────────────── */
.partner-chip {
    background: var(--ibsa-blanc);
    border: 1px solid var(--ibsa-gris);
    border-radius: var(--radius-lg);
    padding: 1.1rem 1.75rem;
    text-align: center; font-weight: 800; font-size: 1rem;
    color: var(--ibsa-texte-sec);
    transition: all var(--t); cursor: default;
    letter-spacing: .02em;
}
.partner-chip:hover {
    box-shadow: var(--shadow-md); transform: translateY(-2px);
    border-color: var(--ibsa-vert-clair); color: var(--ibsa-vert);
}

/* ── Fade-in animation ───────────────────────────────────── */
.fade-in-up {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity .55s ease, transform .55s ease;
}
.fade-in-up.visible { opacity: 1; transform: none; }

/* ── ibsa-card generic ───────────────────────────────────── */
.ibsa-card {
    background: var(--ibsa-blanc);
    border: 1px solid var(--ibsa-gris);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    transition: box-shadow var(--t), transform var(--t);
    height: 100%;
}
.ibsa-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }

/* ── Footer ──────────────────────────────────────────────── */
.ibsa-footer {
    background: var(--ibsa-dark);
    color: rgba(255,255,255,.75);
}
.footer-top {
    padding: 4rem 0 3rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-newsletter {
    background: linear-gradient(135deg, rgba(6,95,70,.5), rgba(13,148,136,.3));
    border: 1px solid rgba(110,231,183,.15);
    border-radius: var(--radius-xl);
    padding: 2rem;
    margin-bottom: 3.5rem;
}
.footer-newsletter h4 { color: #fff; font-weight: 700; margin-bottom: .35rem; }
.footer-newsletter p { color: rgba(255,255,255,.65); font-size: .875rem; margin: 0; }
.footer-newsletter-form { display: flex; gap: .5rem; margin-top: 1rem; }
.footer-newsletter-form input {
    flex: 1; background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.2); border-radius: var(--radius-sm);
    color: #fff; padding: .6rem 1rem; font-size: .875rem;
    font-family: inherit; min-width: 0;
}
.footer-newsletter-form input::placeholder { color: rgba(255,255,255,.4); }
.footer-newsletter-form input:focus { outline: none; border-color: #6ee7b7; background: rgba(255,255,255,.12); }
.footer-newsletter-form button {
    background: var(--ibsa-vert-med); color: #fff; border: none;
    padding: .6rem 1.25rem; border-radius: var(--radius-sm);
    font-weight: 700; font-size: .875rem; cursor: pointer;
    white-space: nowrap; transition: all var(--t);
    font-family: inherit;
}
.footer-newsletter-form button:hover { background: var(--ibsa-vert); }

.footer-brand-name { font-size: 1.35rem; font-weight: 900; color: #fff; letter-spacing: -.02em; }
.footer-brand-desc { font-size: .85rem; line-height: 1.75; color: rgba(255,255,255,.6); margin: .75rem 0 1.25rem; }
.footer-title {
    color: #fff; font-weight: 700; font-size: .82rem;
    text-transform: uppercase; letter-spacing: .1em;
    margin-bottom: 1.25rem;
}
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li + li { margin-top: .55rem; }
.footer-links a {
    color: rgba(255,255,255,.6); font-size: .875rem;
    text-decoration: none; transition: all var(--t);
    display: inline-flex; align-items: center; gap: .4rem;
}
.footer-links a:hover { color: #6ee7b7; padding-left: .25rem; }
.footer-contact-item {
    display: flex; gap: .7rem; align-items: flex-start;
    font-size: .875rem; color: rgba(255,255,255,.65); margin-bottom: .75rem;
}
.footer-contact-item i { color: #6ee7b7; margin-top: .2rem; flex-shrink: 0; width: 14px; text-align: center; }
.footer-bottom {
    padding: 1.25rem 0;
    font-size: .8rem; color: rgba(255,255,255,.38);
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: .5rem;
}
.footer-bottom a { color: rgba(255,255,255,.38); transition: color var(--t); }
.footer-bottom a:hover { color: #6ee7b7; }
.social-icons { display: flex; gap: .5rem; }
.social-icon {
    width: 36px; height: 36px; border-radius: 50%;
    background: rgba(255,255,255,.08); color: rgba(255,255,255,.7);
    display: flex; align-items: center; justify-content: center;
    font-size: .9rem; transition: all var(--t); text-decoration: none;
}
.social-icon:hover { background: var(--ibsa-vert-med); color: #fff; transform: translateY(-2px); }

/* ── Auth pages ──────────────────────────────────────────── */
.auth-page {
    min-height: 100vh;
    background: var(--ibsa-dark);
    background-image: radial-gradient(ellipse at 30% 50%, rgba(6,95,70,.3) 0%, transparent 60%),
                      radial-gradient(ellipse at 70% 20%, rgba(30,64,175,.2) 0%, transparent 50%);
    display: flex; align-items: center; justify-content: center;
    padding: 2rem 1rem;
}
.auth-card {
    background: var(--ibsa-blanc);
    border-radius: var(--radius-2xl);
    padding: 2.5rem;
    width: 100%; max-width: 440px;
    box-shadow: var(--shadow-xl);
}
.auth-logo { text-align: center; margin-bottom: 1.75rem; }
.auth-logo img { height: 60px; border-radius: var(--radius); }
.auth-title {
    font-size: 1.45rem; font-weight: 800;
    color: var(--ibsa-dark); text-align: center;
    margin-bottom: .3rem; letter-spacing: -.02em;
}
.auth-subtitle {
    text-align: center; color: var(--ibsa-texte-sec);
    font-size: .88rem; margin-bottom: 1.75rem;
}
.form-label { font-weight: 600; font-size: .84rem; color: var(--ibsa-texte); margin-bottom: .35rem; }
.form-control {
    border: 1.5px solid var(--ibsa-gris);
    border-radius: var(--radius-sm);
    padding: .65rem 1rem;
    font-size: .9rem;
    transition: border-color var(--t), box-shadow var(--t);
    background: var(--ibsa-fond);
    font-family: inherit;
}
.form-control:focus {
    border-color: var(--ibsa-vert-med);
    box-shadow: 0 0 0 3px rgba(5,150,105,.12);
    background: var(--ibsa-blanc);
    outline: none;
}
.form-select {
    border: 1.5px solid var(--ibsa-gris);
    border-radius: var(--radius-sm);
    padding: .65rem 1rem;
    font-size: .9rem;
    transition: border-color var(--t), box-shadow var(--t);
    font-family: inherit;
}
.form-select:focus {
    border-color: var(--ibsa-vert-med);
    box-shadow: 0 0 0 3px rgba(5,150,105,.12);
    outline: none;
}

/* ── Dashboard layout ────────────────────────────────────── */
.dashboard-wrapper {
    display: flex;
    min-height: 100vh;
    background: var(--ibsa-fond);
}

/* ── Sidebar ─────────────────────────────────────────────── */
.ibsa-sidebar {
    width: 260px;
    background: var(--ibsa-dark);
    min-height: 100vh;
    display: flex; flex-direction: column;
    flex-shrink: 0;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 1040;
    overflow-y: auto;
    transition: transform var(--t);
    border-right: 1px solid rgba(255,255,255,.06);
}
.sidebar-brand {
    padding: 1.3rem 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
    display: flex; align-items: center; gap: .75rem;
    text-decoration: none;
}
.sidebar-brand-logo { height: 40px; border-radius: var(--radius-sm); }
.sidebar-brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.sidebar-brand-name { font-size: 1rem; font-weight: 800; color: #fff; letter-spacing: -.01em; }
.sidebar-brand-sub  { font-size: .62rem; color: rgba(255,255,255,.4); text-transform: uppercase; letter-spacing: .07em; }

.sidebar-nav { padding: 1rem 0; flex: 1; }
.sidebar-section-label {
    font-size: .65rem; font-weight: 700; color: rgba(255,255,255,.3);
    text-transform: uppercase; letter-spacing: .12em;
    padding: .85rem 1.5rem .3rem;
}
.sidebar-link {
    display: flex; align-items: center; gap: .75rem;
    padding: .6rem 1.5rem;
    color: rgba(255,255,255,.65);
    text-decoration: none; font-size: .875rem; font-weight: 500;
    transition: all var(--t); position: relative;
}
.sidebar-link i { width: 18px; text-align: center; font-size: .9rem; flex-shrink: 0; }
.sidebar-link:hover { color: #fff; background: rgba(255,255,255,.06); }
.sidebar-link.active { color: #fff; background: rgba(16,185,129,.12); font-weight: 600; }
.sidebar-link.active::before {
    content: '';
    position: absolute; left: 0; top: 0; bottom: 0;
    width: 3px; background: #6ee7b7;
    border-radius: 0 2px 2px 0;
}
.sidebar-badge {
    margin-left: auto;
    background: var(--ibsa-rouge);
    color: #fff; font-size: .63rem; font-weight: 700;
    padding: .1rem .45rem; border-radius: var(--radius-full);
    min-width: 18px; text-align: center;
}
.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255,255,255,.08);
}
.sidebar-user { display: flex; align-items: center; gap: .75rem; text-decoration: none; }
.sidebar-avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: linear-gradient(135deg, var(--ibsa-vert), var(--ibsa-vert-vif));
    display: flex; align-items: center; justify-content: center;
    font-size: .82rem; font-weight: 700; color: #fff; flex-shrink: 0;
}
.sidebar-user-name  { font-size: .82rem; font-weight: 700; color: #fff; }
.sidebar-user-role  { font-size: .7rem; color: rgba(255,255,255,.4); }

.sidebar-overlay {
    display: none; position: fixed; inset: 0; background: rgba(0,0,0,.6);
    z-index: 1039; opacity: 0; transition: opacity var(--t);
}
.sidebar-overlay.show { display: block; opacity: 1; }

/* ── Dashboard main ──────────────────────────────────────── */
.dashboard-main {
    margin-left: 260px;
    flex: 1; display: flex; flex-direction: column;
    min-width: 0; transition: margin var(--t);
}
.dashboard-content { padding: 2rem; flex: 1; }
.page-title { font-size: 1.4rem; font-weight: 800; color: var(--ibsa-dark); margin-bottom: .2rem; letter-spacing: -.02em; }
.page-subtitle { font-size: .875rem; color: var(--ibsa-texte-sec); margin-bottom: 1.75rem; }

/* ── Topbar ──────────────────────────────────────────────── */
.dashboard-header {
    background: var(--ibsa-blanc);
    border-bottom: 1px solid var(--ibsa-gris);
    padding: 0 1.5rem;
    height: 62px;
    position: sticky; top: 0; z-index: 200;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    column-gap: .75rem;
    box-shadow: var(--shadow-xs);
}
.topbar-left  { display: flex; align-items: center; gap: .75rem; min-width: 0; }
.topbar-right { display: flex; align-items: center; gap: .6rem; justify-content: flex-end; }
.topbar-toggle {
    background: none; border: none; cursor: pointer;
    color: var(--ibsa-texte-sec); font-size: 1rem; padding: .4rem;
    border-radius: var(--radius-sm); transition: all var(--t);
}
.topbar-toggle:hover { background: var(--ibsa-vert-pale); color: var(--ibsa-vert); }
.topbar-title { font-size: .9rem; font-weight: 700; color: var(--ibsa-dark); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar-breadcrumb { font-size: .74rem; color: var(--ibsa-texte-sec); white-space: nowrap; }
.topbar-breadcrumb a { color: var(--ibsa-vert-med); text-decoration: none; }
.topbar-breadcrumb a:hover { text-decoration: underline; }
.topbar-search {
    max-width: 300px; width: 100%; margin: 0 auto; position: relative;
}
.topbar-search input {
    border: 1.5px solid var(--ibsa-gris);
    border-radius: var(--radius-full); padding: .4rem .9rem .4rem 2.2rem;
    font-size: .82rem; background: var(--ibsa-fond); width: 100%;
    transition: border-color var(--t), box-shadow var(--t); font-family: inherit;
}
.topbar-search input:focus {
    border-color: var(--ibsa-vert-med); outline: none;
    box-shadow: 0 0 0 3px rgba(5,150,105,.1);
}
.topbar-search i {
    position: absolute; left: .75rem; top: 50%;
    transform: translateY(-50%); color: var(--ibsa-texte-sec); font-size: .8rem;
}
.topbar-icon-btn {
    width: 36px; height: 36px; border-radius: 50%;
    background: none; border: none; cursor: pointer;
    color: var(--ibsa-texte-sec); font-size: .95rem;
    display: flex; align-items: center; justify-content: center;
    transition: all var(--t); position: relative;
}
.topbar-icon-btn:hover { background: var(--ibsa-vert-pale); color: var(--ibsa-vert); }
.topbar-icon-btn .badge-dot {
    position: absolute; top: 6px; right: 6px;
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--ibsa-rouge); border: 1.5px solid var(--ibsa-blanc);
}
.topbar-user-btn {
    display: flex; align-items: center; gap: .5rem;
    background: none; border: none; cursor: pointer;
    padding: .25rem .5rem; border-radius: var(--radius-sm);
    transition: background var(--t);
}
.topbar-user-btn:hover { background: var(--ibsa-vert-pale); }
.topbar-user-btn.dropdown-toggle::after { display: none; }
.topbar-user-avatar {
    width: 32px; height: 32px; border-radius: 50%;
    background: linear-gradient(135deg, var(--ibsa-vert), var(--ibsa-vert-vif));
    display: flex; align-items: center; justify-content: center;
    font-size: .78rem; font-weight: 700; color: #fff; flex-shrink: 0;
}
.topbar-dropdown, .topbar-user-dropdown {
    background: var(--ibsa-blanc) !important;
    border: 1px solid var(--ibsa-gris) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-lg) !important;
    padding: .4rem 0 !important; min-width: 240px;
    top: 100% !important; right: 0 !important; left: auto !important;
    transform: none !important; margin-top: 4px !important;
}
.topbar-dropdown .dropdown-item,
.topbar-user-dropdown .dropdown-item {
    font-size: .85rem; padding: .55rem 1rem;
    color: var(--ibsa-texte); display: flex; align-items: center; gap: .65rem;
    transition: background var(--t);
}
.topbar-dropdown .dropdown-item:hover,
.topbar-user-dropdown .dropdown-item:hover { background: var(--ibsa-vert-pale); color: var(--ibsa-vert); }
.topbar-dropdown .dropdown-item i,
.topbar-user-dropdown .dropdown-item i { width: 16px; text-align: center; color: var(--ibsa-texte-sec); }
.topbar-dropdown .dropdown-header { font-size: .74rem; font-weight: 700; color: var(--ibsa-texte-sec); }
.topbar-divider { width: 1px; height: 24px; background: var(--ibsa-gris); margin: 0 .25rem; }

/* ── Tables ──────────────────────────────────────────────── */
.ibsa-table-wrap {
    background: var(--ibsa-blanc);
    border: 1px solid var(--ibsa-gris);
    border-radius: var(--radius-xl); overflow: hidden;
}
.table-topbar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 1.1rem 1.25rem; border-bottom: 1px solid var(--ibsa-gris);
    flex-wrap: wrap; gap: .75rem;
}
.ibsa-table { width: 100%; border-collapse: collapse; }
.ibsa-table th {
    background: var(--ibsa-fond);
    font-size: .73rem; font-weight: 700; color: var(--ibsa-texte-sec);
    text-transform: uppercase; letter-spacing: .07em;
    padding: .7rem 1.1rem; border-bottom: 1px solid var(--ibsa-gris);
    white-space: nowrap;
}
.ibsa-table td {
    padding: .85rem 1.1rem; font-size: .875rem; color: var(--ibsa-texte);
    border-bottom: 1px solid var(--ibsa-gris); vertical-align: middle;
}
.ibsa-table tr:last-child td { border-bottom: none; }
.ibsa-table tbody tr:hover td { background: var(--ibsa-vert-pale); }

/* ── Badges ──────────────────────────────────────────────── */
.badge-ibsa {
    display: inline-flex; align-items: center; gap: .3rem;
    padding: .22rem .7rem; border-radius: var(--radius-full);
    font-size: .71rem; font-weight: 700; letter-spacing: .03em;
}
.badge-success  { background: var(--ibsa-vert-clair); color: var(--ibsa-vert); }
.badge-warning  { background: #fef3c7; color: #92400e; }
.badge-danger   { background: var(--ibsa-rouge-light); color: var(--ibsa-rouge); }
.badge-info     { background: var(--ibsa-bleu-pale); color: var(--ibsa-bleu); }
.badge-secondary{ background: #f1f5f9; color: var(--ibsa-texte-sec); }

/* ── Role tags ───────────────────────────────────────────── */
.role-tag { display: inline-block; padding: .15rem .6rem; border-radius: var(--radius-full); font-size: .7rem; font-weight: 700; }
.role-super_admin { background: #fef9c3; color: #713f12; }
.role-admin       { background: var(--ibsa-bleu-pale); color: var(--ibsa-bleu); }
.role-professeur  { background: #ede9fe; color: #6d28d9; }
.role-etudiant    { background: var(--ibsa-vert-clair); color: var(--ibsa-vert); }

/* ── Alerts / Flash ──────────────────────────────────────── */
.flash-msg {
    border-radius: var(--radius); padding: .85rem 1.1rem;
    font-size: .875rem; font-weight: 500;
    display: flex; align-items: center; gap: .6rem; margin-bottom: 1rem;
}
.flash-success { background: var(--ibsa-vert-clair); color: var(--ibsa-vert); }
.flash-error   { background: var(--ibsa-rouge-light); color: var(--ibsa-rouge); }
.flash-warning { background: #fef3c7; color: #92400e; }
.flash-info    { background: var(--ibsa-bleu-pale); color: var(--ibsa-bleu); }

/* ── Progress bar ────────────────────────────────────────── */
.progress-ibsa { height: 8px; border-radius: 4px; background: var(--ibsa-gris); overflow: hidden; }
.progress-ibsa-bar {
    height: 100%; border-radius: 4px;
    background: linear-gradient(90deg, var(--ibsa-vert), var(--ibsa-vert-vif));
    transition: width .6s ease;
}

/* ── Pagination ──────────────────────────────────────────── */
.ibsa-pagination { display: flex; gap: .35rem; flex-wrap: wrap; }
.ibsa-pagination a, .ibsa-pagination span {
    display: inline-flex; align-items: center; justify-content: center;
    width: 34px; height: 34px; border-radius: var(--radius-sm);
    font-size: .82rem; font-weight: 600; text-decoration: none;
    border: 1px solid var(--ibsa-gris); color: var(--ibsa-texte);
    transition: all var(--t);
}
.ibsa-pagination a:hover { background: var(--ibsa-vert-pale); border-color: var(--ibsa-vert); color: var(--ibsa-vert); }
.ibsa-pagination .active { background: var(--ibsa-vert); color: #fff; border-color: var(--ibsa-vert); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 991.98px) {
    .ibsa-sidebar { transform: translateX(-100%); }
    .ibsa-sidebar.open { transform: translateX(0); }
    .dashboard-main { margin-left: 0; }
    .topbar-search { display: none; }
    .hero-ibsa { min-height: auto; padding: 5rem 0 4rem; }
}

@media (max-width: 767.98px) {
    .section-pub { padding: 3.5rem 0; }
    .dashboard-content { padding: 1.25rem; }
    .auth-card { padding: 1.75rem 1.25rem; }
    .dashboard-header { grid-template-columns: auto 1fr auto; }
    .ibsa-topbar { display: none; }
    .hero-stats { gap: 1.25rem; }
    .stats-band { padding: 2.5rem 0; }
}