/* Shathony — site vitrine. Sans dépendance externe. */

:root {
  --ink: #0c1526;
  --ink-2: #12203a;
  --paper: #f6f8fb;
  --card: #ffffff;
  --teal: #0ea5a3;
  --teal-bright: #2dd4bf;
  --sand: #f4c95d;
  --text: #23304a;
  --muted: #5b6b85;
  --line: #e3e9f2;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(12, 21, 38, .08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; }

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: min(1080px, 92%); margin: 0 auto; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(12, 21, 38, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: .02em;
}
.brand:hover { text-decoration: none; }

.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a {
  color: rgba(255, 255, 255, .82);
  font-size: .95rem;
  font-weight: 500;
}
.main-nav a:hover { color: #fff; text-decoration: none; }

.nav-toggle { display: none; }

.btn {
  display: inline-block;
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: .95rem;
  border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn-primary {
  background: var(--teal-bright);
  color: var(--ink);
}
.btn-primary:hover { box-shadow: 0 8px 20px rgba(45, 212, 191, .35); }

.btn-ghost {
  border-color: rgba(255, 255, 255, .35);
  color: #fff;
}
.btn-ghost:hover { border-color: #fff; }

/* ---------- Hero ---------- */

.hero {
  background:
    radial-gradient(900px 420px at 80% -10%, rgba(45, 212, 191, .25), transparent 60%),
    radial-gradient(700px 380px at 10% 110%, rgba(14, 165, 163, .18), transparent 60%),
    linear-gradient(160deg, var(--ink) 0%, var(--ink-2) 100%);
  color: #fff;
  padding: 96px 0 88px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.badge {
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(45, 212, 191, .45);
  color: var(--teal-bright);
  background: rgba(45, 212, 191, .08);
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -.02em;
  max-width: 18ch;
}

.hero h1 em {
  font-style: normal;
  color: var(--teal-bright);
}

.hero p.lead {
  margin: 22px 0 34px;
  max-width: 56ch;
  font-size: 1.13rem;
  color: rgba(255, 255, 255, .85);
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Sections ---------- */

.section { padding: 84px 0; }
.section.alt { background: #fff; }

.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ink);
}

.section-head p { margin-top: 12px; color: var(--muted); font-size: 1.05rem; }

.eyebrow {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 12px;
}

/* ---------- Cartes services ---------- */

.grid { display: grid; gap: 22px; }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
}

.card .icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(14, 165, 163, .1);
  color: var(--teal);
  margin-bottom: 18px;
}

.card h3 {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}

.card p { font-size: .95rem; color: var(--muted); }

.card ul {
  margin-top: 12px;
  padding-left: 18px;
  font-size: .9rem;
  color: var(--muted);
}
.card ul li { margin: 4px 0; }

/* ---------- Valeurs ---------- */

.value { text-align: left; }

.value strong {
  display: block;
  color: var(--ink);
  font-size: 1rem;
  margin-bottom: 6px;
}

.value p { font-size: .95rem; color: var(--muted); }

/* ---------- À propos ---------- */

.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }

.about-text p + p { margin-top: 14px; }

.founder {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.founder + .founder { margin-top: 18px; }

.founder .avatar {
  flex: 0 0 46px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--teal), #0b7d9e);
}

.founder strong { color: var(--ink); }
.founder span.role { display: block; font-size: .85rem; color: var(--teal); font-weight: 600; }
.founder p { font-size: .92rem; color: var(--muted); }

.about-aside {
  background: var(--ink);
  color: rgba(255, 255, 255, .85);
  border-radius: var(--radius);
  padding: 30px 26px;
}
.about-aside h3 { color: #fff; font-size: 1.05rem; margin-bottom: 14px; }
.about-aside p { font-size: .93rem; }
.about-aside p + p { margin-top: 10px; }

/* ---------- Contact ---------- */

.contact-wrap {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.contact-item .label {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 6px;
}

.contact-item p, .contact-item a { font-size: 1.02rem; color: var(--text); }

/* ---------- Bandeau CTA ---------- */

.cta-band {
  background: linear-gradient(140deg, var(--teal) 0%, #0b7d9e 100%);
  color: #fff;
  text-align: center;
  padding: 64px 0;
}
.cta-band h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; }
.cta-band p { margin: 12px auto 26px; max-width: 52ch; opacity: .9; }
.cta-band .btn { background: #fff; color: var(--ink); }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, .7);
  padding: 48px 0 36px;
  font-size: .9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 34px;
}

.site-footer h4 {
  color: #fff;
  font-size: .95rem;
  margin-bottom: 12px;
}

.site-footer ul { list-style: none; }
.site-footer li { margin: 6px 0; }
.site-footer a { color: rgba(255, 255, 255, .7); }
.site-footer a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  color: rgba(255, 255, 255, .5);
  font-size: .85rem;
}

/* ---------- Pages secondaires ---------- */

.page-hero {
  background: linear-gradient(160deg, var(--ink) 0%, var(--ink-2) 100%);
  color: #fff;
  padding: 72px 0 56px;
}
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; letter-spacing: -.01em; }
.page-hero p { margin-top: 12px; color: rgba(255, 255, 255, .75); max-width: 60ch; }

.prose { max-width: 760px; }
.prose h2 {
  color: var(--ink);
  font-size: 1.25rem;
  margin: 34px 0 10px;
}
.prose h3 { color: var(--ink); font-size: 1.05rem; margin: 24px 0 8px; }
.prose p, .prose li { color: var(--text); font-size: .98rem; }
.prose p + p { margin-top: 12px; }
.prose ul { padding-left: 20px; margin: 10px 0; }
.prose li { margin: 6px 0; }
.prose .placeholder {
  background: rgba(244, 201, 93, .18);
  border: 1px dashed rgba(180, 140, 30, .5);
  border-radius: 8px;
  padding: 2px 8px;
  font-weight: 600;
  color: #7a5c10;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .grid.cols-4, .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 72px 0 64px; }

  .nav-toggle {
    display: block;
    background: none;
    border: 0;
    color: #fff;
    font-size: 1.6rem;
    line-height: 1;
    cursor: pointer;
    padding: 6px;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--ink);
    border-bottom: 1px solid rgba(255, 255, 255, .1);
    padding: 8px 4%;
  }
  .main-nav.open { display: flex; }
  .main-nav a {
    display: block;
    width: 100%;
    padding: 13px 0;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
  }
  .main-nav a.btn { margin: 12px 0; text-align: center; border-bottom: 0; }
}