/* =========================================================
   Tech Vision Congo — feuille de style
   Mise en page : bandeau nuit (accueil, formations) + sections claires,
   accent doré réservé aux appels à l'action.
   ========================================================= */

:root {
  /* Couleurs de marque (fixes) */
  --blue: #2559F5;
  --violet: #6D3BEA;
  --night: #0B1230;
  --gold: #F2B705;
  --on-night: #EEF1FC;
  --on-night-muted: #AEB7DA;
  --night-line: rgba(124, 155, 255, .22);

  /* Couleurs de thème (clair) */
  --bg: #F5F7FD;
  --surface: #FFFFFF;
  --surface-2: #ECF0FC;
  --text: #0B1230;
  --muted: #4B557C;
  --line: #DAE0F2;
  --link: #1C47D4;
  --shadow: 0 1px 2px rgba(11, 18, 48, .06), 0 8px 24px rgba(11, 18, 48, .06);
  --ok-bg: #E3F6EA; --ok-fg: #146C3A;
  --soon-bg: #FFF4CF; --soon-fg: #7A5A00;

  --font-title: "Sora", "Segoe UI", system-ui, sans-serif;
  --font-body: "DM Sans", "Segoe UI", system-ui, -apple-system, sans-serif;

  --radius: 14px;
  --header-h: 68px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #070B1F; --surface: #0E1534; --surface-2: #121B42; --text: #E8ECFA;
    --muted: #A2ABCF; --line: #222C58; --link: #8EA9FF;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 10px 30px rgba(0,0,0,.35);
    --ok-bg: #12351F; --ok-fg: #7FE0A3; --soon-bg: #3A2F05; --soon-fg: #F7D45E;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #070B1F; --surface: #0E1534; --surface-2: #121B42; --text: #E8ECFA;
  --muted: #A2ABCF; --line: #222C58; --link: #8EA9FF;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 10px 30px rgba(0,0,0,.35);
  --ok-bg: #12351F; --ok-fg: #7FE0A3; --soon-bg: #3A2F05; --soon-fg: #F7D45E;
  color-scheme: dark;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 1.0625rem/1.65 var(--font-body);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
[hidden] { display: none !important; }
a { color: var(--link); text-underline-offset: 3px; }
h1, h2, h3, h4 { font-family: var(--font-title); line-height: 1.2; margin: 0; text-wrap: balance; letter-spacing: -.01em; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }
h4 { font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
p { margin: 0; }
svg { flex-shrink: 0; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; border-radius: 6px; }

.wrap {
  width: 100%; max-width: 1180px; margin-inline: auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}
.skip { position: absolute; left: -999px; top: 8px; background: var(--gold); color: var(--night); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 12px; }

.eyebrow { font: 600 .78rem/1 var(--font-title); text-transform: uppercase; letter-spacing: .14em; color: var(--blue); margin-bottom: 14px; }
:root[data-theme="dark"] .eyebrow { color: #8EA9FF; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .eyebrow { color: #8EA9FF; } }
.eyebrow-light, :root .eyebrow.eyebrow-light { color: var(--gold); }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 10px 20px; border-radius: 999px;
  font: 600 .95rem/1.2 var(--font-title); text-decoration: none; text-align: center;
  border: 2px solid transparent; cursor: pointer; transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn svg { width: 18px; height: 18px; }
.btn:hover { transform: translateY(-1px); }
.btn-gold { background: var(--gold); color: var(--night); }
.btn-gold:hover { background: #FFC71F; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: #1B48DB; }
.btn-outline { border-color: var(--line); color: var(--text); background: var(--surface); }
.btn-outline:hover { border-color: var(--blue); }
.btn-ghost { border-color: rgba(238, 241, 252, .35); color: var(--on-night); }
.btn-ghost:hover { border-color: var(--on-night); }

/* ---------- En-tête ---------- */
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); background: var(--night); z-index: 60; }
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50;
  background: rgba(11, 18, 48, .92); backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--night-line);
}
.header-inner { display: flex; align-items: center; gap: 20px; height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--on-night); margin-right: auto; }
.logo-pill { display: inline-flex; align-items: center; background: #fff; border-radius: 10px; padding: 6px 12px; box-shadow: 0 0 0 1px rgba(242,183,5,.35); }
.logo-pill img { height: 38px; width: auto; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { color: var(--on-night-muted); text-decoration: none; font: 500 .93rem/1 var(--font-body); padding: 10px 10px; border-radius: 8px; }
.nav a:hover, .nav a.active { color: #fff; }
.nav a.nav-cta { color: var(--night); margin-left: 8px; padding: 10px 18px; min-height: 40px; }
.header-tools { display: flex; gap: 6px; }
.icon-btn { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 10px; border: 1px solid var(--night-line); background: transparent; color: var(--on-night); cursor: pointer; }
.icon-btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.i-moon { display: none; }
:root[data-theme="dark"] .i-sun { display: none; }
:root[data-theme="dark"] .i-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .i-sun { display: none; }
  :root:not([data-theme="light"]) .i-moon { display: block; }
}
.menu-btn { display: none; }

@media (max-width: 1060px) {
  .menu-btn { display: grid; }
  .nav {
    position: fixed; top: calc(var(--header-h) + env(safe-area-inset-top, 0px)); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: var(--night); border-bottom: 1px solid var(--night-line);
    padding: 12px max(20px, env(safe-area-inset-right, 0px)) 20px max(20px, env(safe-area-inset-left, 0px));
    max-height: calc(100dvh - var(--header-h)); overflow-y: auto;
    transform: translateY(-8px); opacity: 0; visibility: hidden; transition: .2s ease;
  }
  .nav.open { transform: none; opacity: 1; visibility: visible; }
  .nav a { padding: 14px 12px; font-size: 1.05rem; }
  .nav a.nav-cta { margin: 10px 0 0; justify-content: center; }
}
@media (max-width: 380px) { .logo-pill img { height: 28px; } }

/* ---------- Accueil ---------- */
.hero { position: relative; background: var(--night); color: var(--on-night); overflow: hidden; isolation: isolate; }
.hero::after { content: ""; position: absolute; inset: auto -10% -40% 30%; height: 80%; background: radial-gradient(closest-side, rgba(109,59,234,.35), transparent); z-index: -1; }
.hero-circuit { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; opacity: .5; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; padding-block: clamp(56px, 9vw, 110px); }
.hero h1 { font-size: clamp(2.3rem, 5.6vw, 4.1rem); font-weight: 800; letter-spacing: -.025em; line-height: 1.06; }
.hero .hl { background: linear-gradient(95deg, #6E93FF, #A07BFF); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { margin-top: 22px; font-size: 1.15rem; color: var(--on-night-muted); max-width: 58ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero-facts { list-style: none; padding: 0; margin: 34px 0 0; display: flex; flex-wrap: wrap; gap: 10px 26px; font: 500 .9rem/1.2 var(--font-title); color: var(--on-night); }
.hero-facts li { display: flex; align-items: center; gap: 8px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gold); }
.hero-visual { display: grid; place-items: center; }
.hero-visual { position: relative; }
.hero-visual::before { content: ""; position: absolute; width: 70%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(closest-side, rgba(37,89,245,.45), rgba(109,59,234,.18) 60%, transparent); }
.hero-mark { position: relative; width: min(100%, 360px); height: auto; filter: drop-shadow(0 0 24px rgba(91,132,255,.35)); }

/* ---------- Bandeau atouts ---------- */
.strip { background: var(--surface); border-bottom: 1px solid var(--line); }
.strip-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; padding-block: 34px; }
.strip-item { display: flex; gap: 14px; align-items: flex-start; }
.strip-item svg { width: 28px; height: 28px; fill: none; stroke: var(--blue); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; margin-top: 2px; }
.strip-item h3 { font-size: 1.02rem; margin-bottom: 4px; }
.strip-item p { color: var(--muted); font-size: .95rem; }

/* ---------- Sections ---------- */
.section { padding-block: clamp(64px, 9vw, 112px); }
.section-alt { background: var(--surface-2); }
.section-night { background: var(--night); color: var(--on-night); }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-sub { margin-top: 14px; color: var(--muted); font-size: 1.08rem; }

/* À propos */
.about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; }
.about-text { display: grid; gap: 18px; color: var(--muted); max-width: 64ch; }
.about-text > p:first-child { color: var(--text); font-size: 1.15rem; }
.about-facts { margin: 12px 0 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.about-facts div { display: grid; grid-template-columns: 110px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.about-facts dt { font: 600 .8rem/1.6 var(--font-title); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.about-facts dd { margin: 0; color: var(--text); }

/* Solutions */
.solutions { display: grid; gap: 28px; }
.solution {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 36px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: clamp(22px, 3.5vw, 40px);
  box-shadow: var(--shadow);
}
.solution-body { display: grid; gap: 14px; align-content: start; min-width: 0; }
.solution-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.solution h3 { font-size: clamp(1.4rem, 2.4vw, 1.8rem); font-weight: 800; display: flex; flex-direction: column; gap: 4px; }
.solution h3 span { font: 500 1rem/1.3 var(--font-body); color: var(--muted); letter-spacing: 0; }
.solution-for { color: var(--text); font-weight: 500; }
.solution-body > p.solution-link { font: 600 .95rem/1.4 var(--font-title); color: var(--text); }
.solution-body > p:not(.solution-for) { color: var(--muted); }
.solution-body h4 { margin-top: 6px; }
.badge { font: 600 .78rem/1 var(--font-title); padding: 7px 12px; border-radius: 999px; white-space: nowrap; }
.badge-ok { background: var(--ok-bg); color: var(--ok-fg); }
.badge-soon { background: var(--soon-bg); color: var(--soon-fg); }
.plans { display: grid; gap: 10px; padding: 16px 18px; background: var(--surface-2); border-radius: 12px; margin-top: 4px; }
.plans h4 { margin: 0; }
.chips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { font: 600 .85rem/1 var(--font-title); padding: 8px 12px; border-radius: 8px; background: var(--surface); border: 1px solid var(--line); }
.price-note { font-size: .92rem; color: var(--muted); }
.solution-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.shots { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-content: center; min-width: 0; }
.shot { margin: 0; aspect-ratio: 9 / 16; max-width: 100%; border-radius: 16px; overflow: hidden; background: var(--surface-2); border: 1px solid var(--line); position: relative; }
.shot:nth-child(2) { transform: translateY(24px); }
.shot img { width: 100%; height: 100%; object-fit: cover; }
.shot figcaption { display: none; }
.shot.empty { display: grid; place-items: center; background:
  repeating-linear-gradient(135deg, transparent 0 14px, rgba(37,89,245,.06) 14px 15px), var(--surface-2); }
.shot.empty img { display: none; }
.shot.empty figcaption { display: block; font: 500 .82rem/1.3 var(--font-title); color: var(--muted); text-align: center; padding: 12px; }

/* Services */
.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.service { padding: 30px 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: grid; gap: 10px; align-content: start; transition: background .2s; }
.service:hover { background: var(--surface); }
.service svg { width: 32px; height: 32px; fill: none; stroke: var(--violet); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 6px; }
:root[data-theme="dark"] .service svg { stroke: #A88BFF; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .service svg { stroke: #A88BFF; } }
.service p { color: var(--muted); font-size: .98rem; }

/* Formations */
.formation-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.formation-grid > div { display: grid; gap: 18px; justify-items: start; }
.formation-grid p:not(.eyebrow) { color: var(--on-night-muted); max-width: 52ch; }
.formation-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--night-line); }
.formation-list li { display: grid; gap: 4px; padding: 20px 0; border-bottom: 1px solid var(--night-line); }
.formation-list strong { font: 600 1.08rem/1.3 var(--font-title); color: var(--on-night); }
.formation-list span { color: var(--on-night-muted); }

/* Équipe */
.team { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.member { display: grid; gap: 6px; align-content: start; }
.avatar {
  aspect-ratio: 1; max-width: 100%; border-radius: 18px; overflow: hidden; margin-bottom: 12px; position: relative;
  background: linear-gradient(135deg, var(--blue), var(--violet));
}
.avatar::before { content: attr(data-initials); position: absolute; inset: 0; display: grid; place-items: center; font: 800 clamp(2.4rem, 6vw, 3.6rem)/1 var(--font-title); color: rgba(255,255,255,.92); letter-spacing: .02em; }
.avatar img { position: relative; width: 100%; height: 100%; object-fit: cover; }
.member h3 { font-size: 1.08rem; }
.member p { color: var(--muted); font-size: .96rem; }

/* Actualités */
.news-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.news-grid > div:first-child { display: grid; gap: 16px; }
.news-grid > div:first-child > p:not(.eyebrow) { color: var(--muted); }
.socials { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.social { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); color: var(--text); text-decoration: none; font: 600 .9rem/1 var(--font-title); }
.social:hover { border-color: var(--blue); }
.social svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linejoin: round; }
.fb-box { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 12px; display: grid; gap: 10px; justify-items: center; min-width: 0; }
.fb-box iframe { width: 100%; max-width: 500px; height: 560px; border: 0; border-radius: 10px; background: var(--surface-2); }
.fb-fallback { font-size: .9rem; color: var(--muted); text-align: center; }

/* Devis */
.devis-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 56px; align-items: start; }
.devis-grid > div { display: grid; gap: 16px; }
.devis-grid > div > p:not(.eyebrow) { color: var(--muted); }
.devis-points { list-style: none; padding: 0; margin: 6px 0 0; display: grid; gap: 10px; }
.devis-points li { padding-left: 28px; position: relative; }
.devis-points li::before { content: ""; position: absolute; left: 0; top: .45em; width: 16px; height: 9px; border-left: 2.5px solid var(--blue); border-bottom: 2.5px solid var(--blue); transform: rotate(-45deg); }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: clamp(20px, 3.5vw, 34px); box-shadow: var(--shadow); }
.field { display: grid; gap: 7px; min-width: 0; }
.field-full { grid-column: 1 / -1; }
.field label { font: 600 .9rem/1.2 var(--font-title); }
.opt { font-weight: 400; color: var(--muted); }
.field input, .field select, .field textarea {
  width: 100%; font: 400 1rem/1.4 var(--font-body); color: var(--text); background: var(--bg);
  border: 1.5px solid var(--line); border-radius: 10px; padding: 12px 14px; min-height: 48px;
}
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,89,245,.18); }
.field [aria-invalid="true"] { border-color: #D93636; }
.form-error { grid-column: 1 / -1; color: #D93636; font-weight: 500; }
:root[data-theme="dark"] .form-error { color: #FF8A8A; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .form-error { color: #FF8A8A; } }

/* Contact */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: stretch; }
.contact-info { display: grid; gap: 20px; align-content: start; justify-items: start; }
.contact-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; width: 100%; border-top: 1px solid var(--line); }
.contact-list li { display: grid; grid-template-columns: 110px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.contact-list span { font: 600 .8rem/1.7 var(--font-title); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.contact-list address { font-style: normal; }
.contact-list a { word-break: break-word; }
.map { border-radius: 20px; overflow: hidden; border: 1px solid var(--line); min-height: 380px; background: var(--surface); }
.map iframe { width: 100%; height: 100%; min-height: 380px; border: 0; display: block; }

/* Pied de page */
.footer { background: var(--night); color: var(--on-night-muted); padding-top: 56px; padding-bottom: env(safe-area-inset-bottom, 0px); }
.footer a { color: var(--on-night); text-decoration: none; }
.footer a:hover { text-decoration: underline; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 36px; padding-bottom: 40px; }
.footer-logo { height: 44px; width: auto; margin: 0 0 14px; }
.footer-slogan { font-style: italic; }
.footer-domain { margin-top: 10px; font: 600 1rem/1.3 var(--font-title); }
.footer-domain a { color: var(--gold); }
.footer-links { display: grid; gap: 10px; align-content: start; }
.footer-contact { display: grid; gap: 8px; align-content: start; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-block: 20px; border-top: 1px solid var(--night-line); font-size: .9rem; }

/* WhatsApp flottant */
.wa-float {
  position: fixed; z-index: 40;
  right: calc(18px + env(safe-area-inset-right, 0px)); bottom: calc(18px + env(safe-area-inset-bottom, 0px));
  width: 58px; height: 58px; border-radius: 50%; display: grid; place-items: center;
  background: #25D366; color: #fff; box-shadow: 0 8px 24px rgba(0,0,0,.25); transition: transform .15s;
}
.wa-float:hover { transform: scale(1.06); }
.wa-float svg { width: 30px; height: 30px; }

/* ---------- Adaptation tablette / téléphone ---------- */
@media (max-width: 960px) {
  .hero-grid, .about-grid, .solution, .formation-grid, .news-grid, .devis-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-visual { order: -1; }
  .hero-mark { width: min(55%, 220px); }
  .services { grid-template-columns: 1fr 1fr; }
  .strip-grid { grid-template-columns: 1fr; gap: 20px; }
  .shots { max-width: 460px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .services, .team { grid-template-columns: 1fr; }
  .team { max-width: 360px; }
  .form { grid-template-columns: 1fr; }
  .hero-actions .btn { flex: 1 1 100%; }
  .solution-actions .btn { flex: 1 1 auto; }
  .about-facts div, .contact-list li { grid-template-columns: 1fr; gap: 2px; }
  .footer-grid { grid-template-columns: 1fr; }
  .fb-box iframe { height: 500px; }
  .map, .map iframe { min-height: 300px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}