/* ================================================================
   DigiFinak — Site vitrine
   Palette : navy profond (marque), rouge (accent, du logo IFS),
   vert (positif, du logo). Display : Space Grotesk. Corps : Inter.
   ================================================================ */

:root {
    --navy-950: #061e38;
    --navy-900: #0a2d52;
    --navy-800: #0e3d6e;
    --navy-700: #145a94;
    --navy-500: #2f7dc4;
    --navy-100: #e8f1fb;
    --accent: #2db200;
    --accent-dark: #228c00;
    --green: #2db200;
    --amber: #ff8000;
    --amber-dark: #db6d00;
    --teal: #14b8a6;
    --violet: #8b6cf2;
    --corail: #ef7d6b;
    --paper: #f9fbfa;
    --ink: #0a2d52;
    --ink-soft: #4d6280;
    --line: #dde6f0;
    --radius: 18px;
    --shadow-lg: 0 30px 60px -20px rgba(10, 45, 82, 0.35);
    --shadow-sm: 0 10px 24px -12px rgba(10, 45, 82, 0.18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: 'Inter', -apple-system, sans-serif;
    color: var(--ink);
    background: var(--paper);
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    margin: 0;
    color: var(--navy-900);
    letter-spacing: -0.01em;
}
p { margin: 0; line-height: 1.65; color: var(--ink-soft); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

.enveloppe { max-width: 1180px; margin: 0 auto; padding: 0 28px; }
.eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--accent); margin-bottom: 18px;
}
.eyebrow::before { content: ''; width: 22px; height: 2px; background: var(--accent); display: inline-block; }

/* ---------------- Boutons ---------------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    padding: 15px 30px; border-radius: 999px; font-weight: 700; font-size: 0.95rem;
    border: 1.5px solid transparent; transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
    white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 14px 30px -10px rgba(213, 60, 55, 0.55); }
.btn-accent:hover { background: var(--accent-dark); }
.btn-blanc { background: #fff; color: var(--navy-900); }
.btn-contour { border-color: rgba(255,255,255,0.35); color: #fff; }
.btn-contour:hover { background: rgba(255,255,255,0.1); }
.btn-navy { background: var(--navy-900); color: #fff; }

/* ---------------- Nav ---------------- */
.entete {
    position: sticky; top: 0; z-index: 100;
    background: rgba(250, 249, 252, 0.88); backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
}
.entete .enveloppe { display: flex; align-items: center; justify-content: space-between; height: 78px; }
.marque { display: flex; align-items: center; gap: 10px; font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.2rem; }
.marque img { height: 72px; width: auto; }
.marque span.rouge, .marque .accent { color: var(--accent); }
.logo-entete { height: 46px; width: auto; display: block; }
.porte-logo-sombre {
    display: inline-flex; align-items: center; background: #fff; border-radius: 10px; padding: 6px 12px;
}
.badge-marque {
    width: 34px; height: 34px; border-radius: 10px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center; color: #fff; font-size: 0.95rem;
    background: linear-gradient(135deg, var(--navy-700), var(--accent));
}
.nav-liens { display: flex; align-items: center; gap: 34px; }
.nav-liens a { font-size: 0.9rem; font-weight: 600; color: var(--navy-800); }
.nav-liens a:hover { color: var(--accent); }
.bouton-menu-mobile { display: none; background: none; border: none; font-size: 1.4rem; color: var(--navy-900); }

/* ---------------- Hero ---------------- */
.hero {
    position: relative; overflow: hidden;
    background: url('assets/photos/photo-classe.jpg');
    background-size: cover; background-position: 50% 30%;
    color: #fff; padding: 130px 0 110px;
}
.hero::before {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    background: linear-gradient(100deg, var(--navy-950) 0%, rgba(6,30,56,0.94) 38%, rgba(6,30,56,0.82) 62%, rgba(6,30,56,0.68) 100%);
}
.hero::after {
    content: ''; position: absolute; inset: 0; opacity: 0.6; pointer-events: none;
    background-image: radial-gradient(circle at 82% 15%, rgba(24,165,102,0.28), transparent 40%),
                       radial-gradient(circle at 95% 65%, rgba(242,169,59,0.22), transparent 45%),
                       radial-gradient(circle at 10% 90%, rgba(139,108,242,0.16), transparent 40%);
}
.hero-grille { position: relative; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 60px; align-items: center; }
.hero h1 { font-size: clamp(2.2rem, 4vw, 3.35rem); line-height: 1.08; color: #fff; }
.hero h1 .accent { color: var(--accent); }
.hero-sous { color: rgba(255,255,255,0.72); font-size: 1.08rem; max-width: 540px; margin: 22px 0 34px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-preuve { display: flex; gap: 30px; margin-top: 46px; flex-wrap: wrap; }
.hero-preuve div strong { display: block; font-family: 'Space Grotesk', sans-serif; font-size: 1.5rem; color: #fff; }
.hero-preuve div span { font-size: 0.78rem; color: rgba(255,255,255,0.55); }

/* -- Carte "suivi en temps réel" (élément signature) -- */
.carte-live {
    position: relative; background: #fff; border-radius: 20px; padding: 22px;
    box-shadow: var(--shadow-lg); transform: rotate(1.2deg);
    animation: flotte 6s ease-in-out infinite;
}
.carte-live-entete { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.carte-live-entete span { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); }
.puce-live { display: inline-flex; align-items: center; gap: 6px; font-size: 0.72rem; font-weight: 700; color: var(--accent); }
.puce-live i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: pulse 1.6s infinite; }
.grille-mini-classes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.mini-classe { border-radius: 10px; padding: 10px 8px; color: #fff; font-size: 0.68rem; font-weight: 700; }
.mini-classe span { display: block; font-weight: 500; opacity: 0.85; font-size: 0.62rem; margin-top: 2px; }
.mini-classe.vert { background: var(--green); }
.mini-classe.bleu { background: var(--navy-700); }
.mini-classe.rouge { background: var(--accent); }
.carte-live-legende { display: flex; gap: 14px; margin-top: 16px; font-size: 0.68rem; color: var(--ink-soft); }
.carte-live-legende span { display: inline-flex; align-items: center; gap: 5px; }
.carte-live-legende i { width: 8px; height: 8px; border-radius: 50%; }
@keyframes flotte { 0%,100% { transform: rotate(1.2deg) translateY(0); } 50% { transform: rotate(1.2deg) translateY(-10px); } }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.25; } }

/* ---------------- Sections génériques ---------------- */
section { padding: 100px 0; }
.section-tete { max-width: 640px; margin-bottom: 56px; }
.section-tete.centre { margin-left: auto; margin-right: auto; text-align: center; }
.section-tete h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); }
.section-tete p { margin-top: 16px; font-size: 1.02rem; }
.fond-alt { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* ---------------- Fonctionnalités ---------------- */
.grille-fonctions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.carte-fonction {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 26px;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.carte-fonction:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); border-color: transparent; }
.icone-fonction {
    width: 46px; height: 46px; border-radius: 13px; display: flex; align-items: center; justify-content: center;
    font-size: 1.15rem; color: #fff; margin-bottom: 18px;
}
.carte-fonction h3 { font-size: 1.05rem; margin-bottom: 10px; }
.carte-fonction p { font-size: 0.88rem; }
.carte-fonction ul { margin: 14px 0 0; padding: 0; list-style: none; font-size: 0.8rem; color: var(--ink-soft); }
.carte-fonction ul li { padding: 5px 0 5px 18px; position: relative; }
.carte-fonction ul li::before { content: '—'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

/* ---------------- Acteurs ---------------- */
.grille-acteurs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.carte-acteur {
    background: var(--navy-900); border-radius: var(--radius); padding: 26px 22px; color: #fff;
    position: relative; overflow: hidden;
}
.carte-acteur::before {
    content: ''; position: absolute; top: -30%; right: -30%; width: 70%; height: 70%; border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,0.08), transparent 70%);
}
.carte-acteur .tag {
    display: inline-block; font-size: 0.64rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
    color: var(--accent); background: rgba(213,60,55,0.15); padding: 4px 10px; border-radius: 999px; margin-bottom: 14px;
}
.carte-acteur h3 { color: #fff; font-size: 1rem; margin-bottom: 8px; }
.carte-acteur p { color: rgba(255,255,255,0.62); font-size: 0.82rem; }
.avatar-acteur {
    width: 52px; height: 52px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem; color: #fff; margin-bottom: 16px; position: relative; z-index: 1;
    box-shadow: 0 8px 18px -6px rgba(0,0,0,0.4);
}

/* ---------------- Pourquoi ---------------- */
.grille-pourquoi { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px 50px; }
.item-pourquoi { display: flex; gap: 18px; }
.item-pourquoi .num { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.6rem; color: var(--navy-100); flex-shrink: 0; width: 44px; }
.item-pourquoi h3 { font-size: 1.02rem; margin-bottom: 8px; }
.item-pourquoi p { font-size: 0.9rem; }

/* ---------------- Photo & carte d'identité ---------------- */
.grille-carte { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 60px; align-items: center; }
.liste-carte { margin-top: 26px; display: flex; flex-direction: column; gap: 18px; }
.liste-carte div { display: flex; gap: 14px; align-items: flex-start; }
.liste-carte .icone-mini {
    width: 36px; height: 36px; border-radius: 10px; background: var(--navy-100); color: var(--navy-700);
    display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 0.9rem;
}
.liste-carte h4 { font-size: 0.95rem; margin-bottom: 4px; color: var(--navy-900); }
.liste-carte p { font-size: 0.86rem; }

.scene-carte { position: relative; display: flex; justify-content: center; padding: 40px 0 30px; }
.mockup-webcam {
    position: absolute; top: -18px; right: 0; width: 140px; background: #fff; border-radius: 14px; padding: 10px;
    box-shadow: var(--shadow-sm); transform: rotate(-4deg); z-index: 2;
}
.mockup-webcam .ecran { aspect-ratio: 4/3; background: linear-gradient(135deg, var(--navy-800), var(--navy-500)); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.5); font-size: 1.6rem; position: relative; overflow: hidden; }
.mockup-webcam .ecran::after { content: ''; position: absolute; inset: 8px; border: 2px dashed rgba(255,255,255,0.35); border-radius: 6px; }
.mockup-webcam .legende { display: flex; align-items: center; gap: 6px; font-size: 0.68rem; font-weight: 700; color: var(--accent); margin-top: 8px; }
.mockup-webcam .legende i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: pulse 1.6s infinite; }

.mockup-carte-id {
    width: 300px; background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-700) 100%);
    border-radius: 16px; padding: 20px; color: #fff; box-shadow: var(--shadow-lg);
    position: relative; z-index: 1; margin-top: 90px;
}
.mockup-carte-id .entete-carte { display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,0.15); padding-bottom: 10px; margin-bottom: 14px; }
.mockup-carte-id .entete-carte span { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 0.85rem; }
.mockup-carte-id .entete-carte small { font-size: 0.6rem; color: rgba(255,255,255,0.55); text-transform: uppercase; letter-spacing: 0.06em; }
.mockup-carte-id .corps-carte { display: flex; gap: 14px; }
.mockup-carte-id .photo-carte {
    width: 66px; height: 82px; border-radius: 8px; background: rgba(255,255,255,0.12);
    border: 2px solid var(--accent); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.6);
    flex-shrink: 0;
}
.mockup-carte-id .infos-carte { flex: 1; font-size: 0.68rem; }
.mockup-carte-id .infos-carte .ligne { margin-bottom: 7px; }
.mockup-carte-id .infos-carte .ligne span { display: block; color: rgba(255,255,255,0.45); font-size: 0.6rem; text-transform: uppercase; letter-spacing: 0.05em; }
.mockup-carte-id .infos-carte .ligne strong { color: #fff; font-weight: 700; }
.mockup-carte-id .pied-carte { display: flex; justify-content: space-between; align-items: flex-end; margin-top: 16px; padding-top: 12px; border-top: 1px solid rgba(255,255,255,0.15); }
.mockup-carte-id .qr-mini { width: 34px; height: 34px; background: #fff; border-radius: 4px; display: flex; align-items: center; justify-content: center; color: var(--navy-900); font-size: 0.9rem; }
.mockup-carte-id .valide { font-size: 0.62rem; color: var(--accent); font-weight: 700; }

/* ---------------- Documents automatiques ---------------- */
.groupe-documents { margin-bottom: 46px; }
.groupe-documents:last-child { margin-bottom: 0; }
.groupe-documents h3 {
    font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-soft);
    margin-bottom: 18px; display: flex; align-items: center; gap: 10px;
}
.groupe-documents h3::after { content: ''; flex: 1; height: 1px; background: var(--line); }
.grille-documents { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.carte-document {
    background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 18px 16px;
    display: flex; gap: 12px; align-items: flex-start; transition: transform .18s ease, box-shadow .18s ease;
}
.carte-document:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.carte-document .icone-doc {
    width: 34px; height: 34px; border-radius: 9px; display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 0.85rem; flex-shrink: 0;
}
.carte-document h4 { font-size: 0.86rem; margin-bottom: 4px; }
.carte-document p { font-size: 0.76rem; }

/* ---------------- Paiements ---------------- */
.grille-paiements { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 60px; align-items: center; }
.liste-paiements { margin-top: 26px; display: flex; flex-direction: column; gap: 18px; }
.liste-paiements div { display: flex; gap: 14px; align-items: flex-start; }
.liste-paiements .icone-mini {
    width: 36px; height: 36px; border-radius: 10px; background: var(--navy-100); color: var(--navy-700);
    display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 0.9rem;
}
.liste-paiements h4 { font-size: 0.95rem; margin-bottom: 4px; color: var(--navy-900); }
.liste-paiements p { font-size: 0.86rem; }

.mockup-paiement {
    background: #fff; border-radius: 22px; padding: 30px 32px; box-shadow: var(--shadow-lg); max-width: 460px; margin: 0 auto;
}
.mockup-paiement .titre-mockup { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--navy-900); font-size: 0.98rem; margin-bottom: 20px; }
.mockup-paiement .bandeau-total {
    background: linear-gradient(120deg, var(--navy-900), var(--navy-700)); color: #fff; border-radius: 14px;
    padding: 18px 20px; text-align: center; margin-bottom: 22px;
}
.mockup-paiement .bandeau-total span { display: block; font-size: 0.72rem; opacity: 0.75; margin-bottom: 4px; }
.mockup-paiement .bandeau-total strong { font-size: 1.5rem; font-family: 'Space Grotesk', sans-serif; }
.mockup-paiement .label-mode { font-size: 0.8rem; font-weight: 700; color: var(--ink-soft); margin-bottom: 12px; }
.grille-modes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.mode-paiement {
    border: 1.5px solid var(--line); border-radius: 12px; padding: 12px 8px; text-align: center;
    display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.mode-paiement img { height: 26px; width: auto; max-width: 40px; object-fit: contain; }
.mode-paiement .icone-generique {
    height: 26px; width: 26px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 0.8rem;
}
.mode-paiement span { font-size: 0.62rem; font-weight: 600; color: var(--ink-soft); line-height: 1.2; }
.mode-paiement.selectionne { border-color: var(--accent); background: #f2fbf4; }


.grille-galerie { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.carte-galerie {
    position: relative; border-radius: 18px; overflow: hidden; aspect-ratio: 3/4;
    box-shadow: var(--shadow-sm);
}
.carte-galerie img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .35s ease; }
.carte-galerie:hover img { transform: scale(1.06); }
.carte-galerie::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(0deg, rgba(10,45,82,0.88) 0%, rgba(10,45,82,0.15) 55%, transparent 75%);
}
.legende-galerie {
    position: absolute; left: 0; right: 0; bottom: 0; padding: 18px; z-index: 1; color: #fff;
}
.legende-galerie .puce-cat {
    display: inline-block; font-size: 0.62rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
    padding: 3px 10px; border-radius: 999px; margin-bottom: 8px;
}
.legende-galerie h4 { color: #fff; font-size: 0.92rem; }


.bandeau-institut {
    background: var(--navy-900); color: #fff; border-radius: 24px; padding: 46px 50px;
    display: flex; align-items: center; gap: 34px; flex-wrap: wrap;

}
.bandeau-institut img { height: 70px; width: auto; background: #fff; border-radius: 14px; padding: 8px; }
.bandeau-institut p { color: rgba(255,255,255,0.78); font-size: 1rem; max-width: 640px; }
.bandeau-institut strong { color: #fff; }

/* ---------------- Démo ---------------- */
#demo { background: var(--navy-900); color: #fff; position: relative; overflow: hidden; }
#demo::before {
    content: ''; position: absolute; inset: 0;
    background-image: radial-gradient(circle at 90% 10%, rgba(77,156,81,0.18), transparent 40%);
}
.demo-grille { position: relative; display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 60px; align-items: start; }
.demo-grille .section-tete h2 { color: #fff; }
.demo-grille .section-tete p { color: rgba(255,255,255,0.65); }
.liste-demo { margin-top: 30px; display: flex; flex-direction: column; gap: 16px; }
.liste-demo div { display: flex; gap: 12px; align-items: flex-start; font-size: 0.9rem; color: rgba(255,255,255,0.75); }
.liste-demo i { color: var(--green); margin-top: 3px; }

.carte-formulaire { background: #fff; border-radius: var(--radius); padding: 38px; box-shadow: var(--shadow-lg); }
.champ { margin-bottom: 18px; }
.champ label { display: block; font-size: 0.8rem; font-weight: 700; color: var(--navy-800); margin-bottom: 7px; }
.champ input, .champ select, .champ textarea {
    width: 100%; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 10px;
    font-family: inherit; font-size: 0.92rem; color: var(--ink); background: var(--paper);
}
.champ input:focus, .champ select:focus, .champ textarea:focus { outline: none; border-color: var(--navy-700); background: #fff; }
.grille-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
#formulaire-demo button[type=submit] { width: 100%; margin-top: 6px; padding: 16px; font-size: 1rem; }
.etat-formulaire { margin-top: 16px; padding: 13px 16px; border-radius: 10px; font-size: 0.86rem; display: none; }
.etat-formulaire.ok { display: block; background: #eaf6ea; color: #2c6a2f; }
.etat-formulaire.ko { display: block; background: #fdeceb; color: var(--accent-dark); }

/* ---------------- Pied de page ---------------- */
footer { background: var(--navy-950); color: rgba(255,255,255,0.55); padding: 46px 0; font-size: 0.82rem; }
footer .enveloppe { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; }
footer .marque { color: #fff; }

/* Le contenu est toujours visible : pas d'animation conditionnée au
   scroll qui pourrait, dans certains cas, ne jamais se déclencher. */
.revele { opacity: 1; }

/* ---------------- Responsive ---------------- */
@media (max-width: 980px) {
    .hero-grille { grid-template-columns: 1fr; }
    .grille-fonctions { grid-template-columns: repeat(2, 1fr); }
    .grille-acteurs { grid-template-columns: repeat(2, 1fr); }
    .grille-pourquoi { grid-template-columns: 1fr; }
    .grille-carte { grid-template-columns: 1fr; }
    .grille-paiements { grid-template-columns: 1fr; }
    .grille-documents { grid-template-columns: repeat(2, 1fr); }
    .grille-galerie { grid-template-columns: repeat(2, 1fr); }
    .demo-grille { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
    .nav-liens { display: none; }
    .bouton-menu-mobile { display: block; }
    section { padding: 70px 0; }
    .hero { padding: 100px 0 70px; }
    .grille-fonctions { grid-template-columns: 1fr; }
    .grille-documents { grid-template-columns: 1fr; }
    .grille-galerie { grid-template-columns: 1fr; }
    .grille-acteurs { grid-template-columns: 1fr; }
    .grille-2 { grid-template-columns: 1fr; }
    .grille-modes { grid-template-columns: repeat(4, 1fr); }
    .bandeau-institut { padding: 32px 26px; }
    .carte-formulaire { padding: 26px; }
    .hero-preuve { gap: 22px; }
}