/* Nverest SRL — site vitrine. Charte : navy #16243a, ocre #d99a2b, fond clair. */
:root {
  --navy: #16243a;
  --navy-soft: #1f3050;
  --ocre: #d99a2b;
  --ocre-dark: #b57e1c;
  --ink: #2b3442;
  --muted: #6b7280;
  --bg: #f7f6f2;
  --card: #ffffff;
  --line: #e4e1d8;
  --radius: 10px;
  --maxw: 1080px;
}

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

body {
  font-family: Georgia, 'Times New Roman', serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
}

h1, h2, h3, .nav, .btn, .badge, .kicker, .card-label, footer, .meta {
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
header.site {
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
}
.site-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 24px; max-width: var(--maxw); margin: 0 auto;
}
.logo { display: flex; align-items: center; text-decoration: none; }
.logo img { height: 52px; width: auto; display: block; }
.nav a {
  color: var(--navy); text-decoration: none; font-size: 14.5px;
  margin-left: 26px; letter-spacing: .02em; font-weight: 500;
}
.nav a:hover, .nav a.active { color: var(--ocre-dark); }
.nav a.active { border-bottom: 2px solid var(--ocre); padding-bottom: 3px; }
.nav a.btn-nav {
  background: var(--ocre); color: var(--navy); padding: 9px 16px;
  border-radius: 6px; font-weight: 700;
}
.nav a.btn-nav:hover { background: #e5ac45; color: var(--navy); border-bottom: none; }

/* ---------- Hero ---------- */
.hero {
  background: var(--navy); color: #fff;
  padding: 72px 0 80px;
}
.hero .kicker {
  color: var(--ocre); font-size: 13px; letter-spacing: .25em;
  text-transform: uppercase; margin-bottom: 18px; font-weight: 600;
}
.hero .kicker::after {
  content: ""; display: block; width: 64px; height: 3px;
  background: var(--ocre); margin-top: 14px;
}
.hero h1 { font-size: 42px; line-height: 1.2; font-weight: 700; max-width: 720px; }
.hero p.lead {
  font-family: Georgia, serif; font-style: italic;
  color: #c8cfdb; font-size: 19px; margin-top: 22px; max-width: 640px;
  border-left: 3px solid var(--ocre); padding-left: 18px;
}
.hero .actions { margin-top: 36px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; text-decoration: none; font-weight: 600;
  font-size: 15px; padding: 13px 26px; border-radius: 6px;
  letter-spacing: .02em;
}
.btn-primary { background: var(--ocre); color: var(--navy); }
.btn-primary:hover { background: #e5ac45; }
.btn-ghost { border: 1px solid rgba(255,255,255,.4); color: #fff; margin-left: 12px; }
.btn-ghost:hover { border-color: var(--ocre); color: var(--ocre); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-soft); }

/* ---------- Sections ---------- */
section { padding: 64px 0; }
section.alt { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { margin-bottom: 36px; }
.sec-head .num { color: var(--ocre); font-weight: 700; font-family: Helvetica, Arial, sans-serif; font-size: 15px; margin-right: 10px; }
.sec-head h2 {
  display: inline; font-size: 28px; color: var(--navy); font-weight: 700;
}
.sec-head .rule { height: 3px; background: linear-gradient(90deg, var(--ocre) 120px, var(--line) 120px); margin-top: 14px; }
.sec-head p.sub { margin-top: 14px; color: var(--muted); max-width: 700px; }

/* ---------- Cards ---------- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; border-top: 3px solid var(--navy);
}
.card.accent { border-top-color: var(--ocre); }
.card h3 { color: var(--navy); font-size: 20px; margin-bottom: 10px; }
.card p { color: var(--ink); font-size: 16px; }
.card .card-label {
  font-size: 12px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--ocre-dark); font-weight: 700; margin-bottom: 10px;
}
.card ul { margin: 12px 0 0 18px; }
.card li { margin-bottom: 8px; font-size: 15.5px; }
.card .more { display: inline-block; margin-top: 18px; color: var(--navy); font-weight: 600; text-decoration: none; font-family: Helvetica, Arial, sans-serif; font-size: 15px; }
.card .more:hover { color: var(--ocre-dark); }

/* Cards portail accueil */
.portal { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: -46px; position: relative; z-index: 5; }
.portal .card { box-shadow: 0 10px 30px rgba(22,36,58,.10); }
.portal .card img { width: 100%; height: 210px; object-fit: cover; border-radius: 6px; margin-bottom: 18px; }

/* ---------- Piscines ---------- */
.pool { display: grid; grid-template-columns: 1.1fr 1fr; gap: 36px; align-items: start; }
.pool + .pool { margin-top: 56px; padding-top: 56px; border-top: 1px solid var(--line); }
.pool h3 { color: var(--navy); font-size: 24px; margin-bottom: 6px; }
.pool .meta { color: var(--muted); font-size: 14px; margin-bottom: 16px; }
.specs { list-style: none; margin-top: 16px; }
.specs li { padding: 8px 0 8px 26px; position: relative; border-bottom: 1px dashed var(--line); font-size: 15.5px; }
.specs li::before { content: "■"; color: var(--ocre); position: absolute; left: 0; font-size: 11px; top: 12px; }
.gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.gallery img { width: 100%; height: 150px; object-fit: cover; border-radius: 6px; }
.gallery img.big { grid-column: 1 / -1; height: 230px; }

/* ---------- Steps / modules ---------- */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.step .n {
  display: inline-flex; width: 38px; height: 38px; border-radius: 50%;
  background: var(--navy); color: var(--ocre); font-weight: 700;
  align-items: center; justify-content: center; font-family: Helvetica, Arial, sans-serif;
  margin-bottom: 14px; font-size: 17px;
}
.step h3 { color: var(--navy); font-size: 18px; margin-bottom: 8px; }
.step p { font-size: 15.5px; }

.modules { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.module {
  background: #fff; border: 1px solid var(--line); border-radius: 8px;
  padding: 18px; font-size: 14.5px;
}
.module b { display: block; color: var(--navy); font-family: Helvetica, Arial, sans-serif; margin-bottom: 6px; font-size: 15px; }

/* ---------- Bandeau citation ---------- */
.quote-band {
  background: var(--navy); color: #fff; border-radius: var(--radius);
  text-align: center; padding: 34px 24px; font-size: 22px; font-weight: 700;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}
.quote-band em { color: var(--ocre); font-style: normal; }

/* ---------- Principes ---------- */
.principes { background: #fdf8ee; border-left: 4px solid var(--ocre); border-radius: 0 8px 8px 0; padding: 26px 30px; }
.principes h3 { color: var(--ocre-dark); font-size: 13px; letter-spacing: .2em; text-transform: uppercase; margin-bottom: 14px; }
.principes li { margin: 10px 0 10px 18px; font-size: 16px; }

/* ---------- CTA final ---------- */
.cta-final {
  background: var(--navy); border-radius: var(--radius); color: #fff;
  padding: 44px; display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.cta-final h2 { font-size: 26px; }
.cta-final p { color: #c8cfdb; margin-top: 8px; max-width: 560px; }

/* ---------- Footer ---------- */
footer {
  background: var(--navy); color: #9aa5b5; padding: 44px 0; font-size: 14px; margin-top: 64px;
}
footer .cols { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
footer h4 { color: #fff; font-size: 14px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 12px; }
footer a { color: #c8cfdb; text-decoration: none; }
footer a:hover { color: var(--ocre); }
footer .legal { margin-top: 30px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); font-size: 13px; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .grid-2, .grid-3, .steps, .portal, .pool, footer .cols { grid-template-columns: 1fr; }
  .modules { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 32px; }
  .nav a { margin-left: 14px; font-size: 13px; }
  .cta-final { flex-direction: column; align-items: flex-start; }
  .portal { margin-top: 24px; }
}