/* ZarzisNet — feuille de style unique, sans framework ni dépendance externe. */

:root {
  --navy:      #1b3a6b;
  --navy-deep: #0f2547;
  --blue:      #1a6fe0;
  --blue-dark: #1657c8;
  --cyan:      #00c2f2;
  --teal:      #17b8bd;
  --ink:       #142238;
  --muted:     #5a6b85;
  --line:      #e2e8f2;
  --bg:        #ffffff;
  --bg-soft:   #f5f8fd;
  --radius:    16px;
  --shadow:    0 1px 2px rgba(16,37,71,.06), 0 12px 32px rgba(16,37,71,.08);
  --max:       1120px;
  --font: "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans Arabic", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: var(--blue); }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* ── En-tête ─────────────────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 24px; height: 72px; position: relative; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; margin-right: auto; }
.brand img { height: 38px; width: auto; display: block; }

.nav { display: flex; align-items: center; gap: 26px; }
.nav a { color: var(--ink); text-decoration: none; font-size: 15.5px; font-weight: 500; }
.nav a:hover { color: var(--blue); }

.nav-toggle {
  display: none; background: none; border: 1px solid var(--line);
  border-radius: 10px; width: 42px; height: 42px; cursor: pointer; padding: 0;
}
.nav-toggle i, .nav-toggle i::before, .nav-toggle i::after {
  display: block; width: 18px; height: 2px; background: var(--ink); margin: 0 auto;
}
.nav-toggle i { position: relative; }
.nav-toggle i::before { content: ""; position: absolute; top: -6px; }
.nav-toggle i::after  { content: ""; position: absolute; top: 6px; }

/* ── Boutons ─────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 22px; border-radius: 12px; font-weight: 600; font-size: 16px;
  text-decoration: none; border: 1px solid transparent; cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--blue), var(--cyan)); color: #fff; box-shadow: 0 8px 20px rgba(26,111,224,.28); }
.btn-whatsapp { background: #25d366; color: #06331a; box-shadow: 0 8px 20px rgba(37,211,102,.3); }
.btn-ghost { background: #fff; color: var(--navy); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-lg { padding: 16px 28px; font-size: 17px; }

/* ── Héros ───────────────────────────────────────────────────────────── */
.hero {
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(0,194,242,.16), transparent 60%),
    radial-gradient(700px 380px at 5% 10%, rgba(26,111,224,.12), transparent 60%),
    var(--bg-soft);
  border-bottom: 1px solid var(--line);
  padding: 84px 0 76px;
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--line); color: var(--navy);
  font-size: 14px; font-weight: 600; padding: 7px 14px; border-radius: 999px;
}
.eyebrow b { color: var(--teal); }
h1 {
  font-size: clamp(34px, 5vw, 52px); line-height: 1.12; letter-spacing: -1.2px;
  margin: 20px 0 18px; color: var(--navy-deep);
}
h1 .grad {
  background: linear-gradient(120deg, var(--blue), var(--teal));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { font-size: 19px; color: var(--muted); margin: 0 0 30px; max-width: 34em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-note { margin-top: 18px; font-size: 14.5px; color: var(--muted); }
.hero-art { display: flex; justify-content: center; }
.hero-art img { width: min(340px, 80%); filter: drop-shadow(0 24px 44px rgba(16,37,71,.18)); }

/* ── Bandeau de réassurance ──────────────────────────────────────────── */
.strip { border-bottom: 1px solid var(--line); background: #fff; }
.strip ul {
  list-style: none; margin: 0; padding: 22px 0; display: grid;
  grid-template-columns: repeat(4, 1fr); gap: 18px; text-align: center;
}
.strip li { font-size: 15px; color: var(--muted); }
.strip b { display: block; color: var(--navy); font-size: 17px; }

/* ── Sections ────────────────────────────────────────────────────────── */
/* scroll-margin-top : l'en-tête est collant, sans ça il masque le titre de la
   section quand on arrive par une ancre (#services, #contact…). */
section { padding: 78px 0; scroll-margin-top: 72px; }
section.alt { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 40em; margin-bottom: 42px; }
.section-head h2 {
  font-size: clamp(27px, 3.4vw, 36px); line-height: 1.2; letter-spacing: -.7px;
  margin: 0 0 12px; color: var(--navy-deep);
}
.section-head p { margin: 0; color: var(--muted); font-size: 18px; }
.kicker {
  font-size: 13.5px; font-weight: 700; letter-spacing: 1.4px; text-transform: uppercase;
  color: var(--teal); margin: 0 0 10px;
}

/* ── Cartes ──────────────────────────────────────────────────────────── */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px; box-shadow: var(--shadow);
  transition: transform .14s ease, box-shadow .14s ease, border-color .14s ease;
}
.card:hover { transform: translateY(-3px); border-color: #cfe0f6; }
.card h3 { margin: 16px 0 8px; font-size: 20px; color: var(--navy-deep); letter-spacing: -.3px; }
.card p { margin: 0 0 14px; color: var(--muted); font-size: 16px; }
.card ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 15.5px; }
.card li { margin-bottom: 5px; }
.icon {
  width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(26,111,224,.12), rgba(0,194,242,.16));
  color: var(--blue);
}
.icon svg { width: 24px; height: 24px; }

/* ── Méthode ─────────────────────────────────────────────────────────── */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.step { padding-top: 16px; }
.step::before {
  counter-increment: step; content: counter(step);
  display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px;
  background: linear-gradient(135deg, var(--blue), var(--cyan)); color: #fff;
  font-weight: 700; font-size: 18px; margin-bottom: 14px;
}
.step h3 { margin: 0 0 6px; font-size: 18.5px; color: var(--navy-deep); }
.step p { margin: 0; color: var(--muted); font-size: 15.5px; }

/* ── Réalisations ────────────────────────────────────────────────────── */
.work { display: grid; grid-template-columns: 1.25fr .75fr; gap: 22px; }
.work-main {
  background: linear-gradient(135deg, var(--navy-deep), #17427f 60%, #12608f);
  color: #fff; border-radius: var(--radius); padding: 36px 34px;
}
.work-main h3 { margin: 8px 0 12px; font-size: 26px; letter-spacing: -.4px; }
.work-main p { color: #cfe0f6; margin: 0 0 18px; }
.work-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.work-tags span {
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.18);
  padding: 5px 12px; border-radius: 999px; font-size: 14px;
}
.work-main .btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.35); }
.work-main .btn-ghost:hover { background: rgba(255,255,255,.1); color: #fff; }
.work-side {
  border: 1px dashed #bcd2f0; border-radius: var(--radius); padding: 32px 28px;
  display: flex; flex-direction: column; justify-content: center; background: #fff;
}
.work-side h3 { margin: 0 0 10px; font-size: 21px; color: var(--navy-deep); }
.work-side p { color: var(--muted); margin: 0 0 18px; }

/* ── FAQ ─────────────────────────────────────────────────────────────── */
.faq { display: grid; gap: 12px; max-width: 860px; }
details {
  background: #fff; border: 1px solid var(--line); border-radius: 13px; padding: 18px 22px;
}
details[open] { border-color: #cfe0f6; box-shadow: var(--shadow); }
summary {
  cursor: pointer; font-weight: 600; color: var(--navy-deep); font-size: 17px;
  list-style: none; display: flex; justify-content: space-between; gap: 16px; align-items: center;
}
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--blue); font-size: 24px; font-weight: 400; line-height: 1; }
details[open] summary::after { content: "\2212"; }
details p { margin: 12px 0 0; color: var(--muted); font-size: 16px; }

/* ── Contact ─────────────────────────────────────────────────────────── */
.contact {
  background:
    radial-gradient(700px 340px at 90% 0%, rgba(23,184,189,.18), transparent 60%),
    var(--navy-deep);
  color: #fff;
}
.contact .section-head h2 { color: #fff; }
.contact .section-head p { color: #c6d8f2; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.contact-list a, .contact-list .item {
  display: flex; align-items: center; gap: 14px; color: #fff; text-decoration: none;
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14);
  padding: 16px 18px; border-radius: 13px; font-size: 16.5px;
}
.contact-list a:hover { background: rgba(255,255,255,.13); }
.contact-list svg { width: 22px; height: 22px; flex: none; color: var(--cyan); }
.contact-list small { display: block; color: #a9c2e4; font-size: 13.5px; font-weight: 400; }
.contact-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px; }
.contact-pitch p { color: #c6d8f2; }
.contact-pitch ul { color: #c6d8f2; padding-left: 20px; }
.contact-pitch li { margin-bottom: 8px; }

/* ── Pied de page ────────────────────────────────────────────────────── */
.site-footer { background: #0b1c33; color: #93a9c8; padding: 40px 0; font-size: 15px; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; justify-content: space-between; }
.site-footer a { color: #c6d8f2; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer img { height: 30px; opacity: .95; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 980px) {
  .hero-grid, .contact-grid, .work { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .cards, .steps { grid-template-columns: repeat(2, 1fr); }
  .strip ul { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav {
    display: none; position: absolute; top: 72px; left: -20px; right: -20px;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line); padding: 8px 20px 18px;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav .btn { margin-top: 12px; justify-content: center; }
  .nav-toggle { display: block; }
  .cards, .steps { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .hero { padding: 56px 0 48px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn:hover, .card:hover { transform: none; }
}