/* =========================================================
   APOTHÈME INGÉNIERIE & CONSEIL — style.css
   Design tokens issus de la charte graphique.
   ========================================================= */

:root{
  --navy:#0B2E5E;
  --blue:#3E87BA;
  --sky:#8FC3E6;
  --terracotta:#B65A3A;
  --ink:#17212C;
  --ink-soft:#4B5563;
  --paper:#FAF9F6;
  --line:#DDE1E6;
  --line-strong:#C3CAD3;
  --white:#FFFFFF;

  --font-disp:'Big Shoulders Display', sans-serif;
  --font-sans:'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --font-mono:'IBM Plex Mono', monospace;

  --container: 1240px;
  --radius: 2px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--paper);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  line-height:1.5;
}
img{ max-width:100%; display:block; }
a{ color:var(--blue); text-decoration:none; }
h1,h2,h3,h4{ margin:0; font-family:var(--font-disp); font-weight:800; color:var(--navy); }
p{ margin:0; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; cursor:pointer; }

.disp{ font-family:var(--font-disp); }
.mono{ font-family:var(--font-mono); }

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}

.eyebrow{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--blue);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-sans);
  font-weight:600;
  font-size:14px;
  border-radius:var(--radius);
  border:1px solid transparent;
  padding:13px 24px;
  transition:background .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary{ background:var(--navy); color:#fff; }
.btn-primary:hover{ background:#092348; }
.btn-outline{ background:transparent; border-color:var(--navy); color:var(--navy); }
.btn-outline:hover{ background:var(--navy); color:#fff; }
.btn-outline-light{ background:transparent; border-color:rgba(255,255,255,.5); color:#fff; }
.btn-outline-light:hover{ background:#fff; color:var(--navy); border-color:#fff; }

/* ---------- Topbar / Nav ---------- */
.topbar{
  position:sticky; top:0; z-index:100;
  background:rgba(250,249,246,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.topbar .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:74px;
}
.topbar .mark{ display:flex; align-items:center; gap:10px; }
.topbar .mark img{ height:30px; width:auto; }
.topbar .mark .name{ font-family:var(--font-disp); font-weight:800; font-size:17px; color:var(--navy); letter-spacing:.01em; }
.nav-links{ display:flex; align-items:center; gap:32px; }
.nav-links a{
  font-family:var(--font-mono); font-size:12px; text-transform:uppercase; letter-spacing:.06em;
  color:var(--ink-soft);
}
.nav-links a:hover, .nav-links a.active{ color:var(--navy); }
.nav-cta{ display:flex; align-items:center; gap:20px; }
.nav-burger{ display:none; background:none; border:none; padding:6px; }
.nav-burger span{ display:block; width:22px; height:2px; background:var(--navy); margin:5px 0; }

.mobile-menu{
  display:none; position:fixed; inset:0; background:var(--paper); z-index:200;
  padding:24px 28px; flex-direction:column;
}
.mobile-menu.open{ display:flex; }
.mobile-menu .close-row{ display:flex; justify-content:space-between; align-items:center; margin-bottom:40px; }
.mobile-menu .close-btn{ background:none; border:none; font-size:28px; color:var(--navy); line-height:1; }
.mobile-menu a{
  font-family:var(--font-disp); font-weight:700; font-size:28px; color:var(--navy);
  padding:14px 0; border-bottom:1px solid var(--line);
}

/* ---------- Hero (generic, inner pages) ---------- */
.page-hero{
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
}
.page-hero h1{ font-size:46px; margin:12px 0 16px; max-width:760px; }
.page-hero p{ color:var(--ink-soft); font-size:16px; max-width:620px; line-height:1.65; }

/* ---------- Duotone imagery ---------- */
.duotone{
  background-blend-mode: multiply, normal;
  background-size:cover;
  background-position:center;
}
.duotone-navy{
  background-image:
    linear-gradient(125deg, rgba(11,46,94,.82), rgba(143,195,230,.45)),
    linear-gradient(rgba(0,0,0,0), rgba(0,0,0,0));
}
.ph-strip{
  background-repeat:repeating-linear-gradient(105deg,#cfd3d6 0 14px,#b7bcc0 14px 28px);
}

/* ---------- Sections ---------- */
section{ padding:88px 0; }
.section-head{ max-width:640px; margin-bottom:48px; }
.section-head h2{ font-size:34px; margin:12px 0 14px; }
.section-head p{ color:var(--ink-soft); font-size:15px; line-height:1.65; }

/* ---------- Domain cards ---------- */
.domain-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(280px,1fr));
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.domain-card{
  background:var(--paper);
  padding:32px 28px;
  transition:background .15s ease;
}
.domain-card:hover{ background:#fff; }
.domain-card .code{ font-family:var(--font-mono); font-size:11px; color:var(--blue); }
.domain-card h3{ font-size:22px; margin:14px 0 10px; color:var(--navy); }
.domain-card p{ font-size:13.5px; color:var(--ink-soft); line-height:1.6; margin-bottom:16px; }
.domain-card a{ font-family:var(--font-mono); font-size:11px; text-transform:uppercase; letter-spacing:.05em; color:var(--navy); font-weight:600; }

/* ---------- Cards / Projects ---------- */
.card{
  background:#fff; border:1px solid var(--line);
  display:flex; flex-direction:column;
}
.card .thumb{ height:220px; position:relative; overflow:hidden; }
.card .thumb img{ width:100%; height:100%; object-fit:cover; }
.card .body{ padding:22px 24px; }
.card .tag{ font-family:var(--font-mono); font-size:10px; text-transform:uppercase; letter-spacing:.05em; color:var(--blue); }
.card h3{ font-size:18px; margin:10px 0 6px; color:var(--navy); }
.card .meta{ font-size:12.5px; color:var(--ink-soft); }

.project-grid{
  display:grid; grid-template-columns:repeat(3, 1fr); gap:1px;
  background:var(--line); border:1px solid var(--line);
}
@media (max-width: 980px){ .project-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width: 640px){ .project-grid{ grid-template-columns:1fr; } }

.filters{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:40px; }
.filter-chip{
  font-family:var(--font-mono); font-size:11px; text-transform:uppercase; letter-spacing:.05em;
  padding:9px 16px; border:1px solid var(--line-strong); border-radius:20px; background:#fff; color:var(--ink-soft);
}
.filter-chip.active, .filter-chip:hover{ background:var(--navy); color:#fff; border-color:var(--navy); }

/* ---------- Stats ---------- */
.stat-row{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.stat{ background:var(--paper); padding:30px 24px; text-align:left; }
.stat .num{ font-family:var(--font-disp); font-weight:800; font-size:40px; color:var(--navy); line-height:1; }
.stat .label{ font-family:var(--font-mono); font-size:11px; text-transform:uppercase; color:var(--ink-soft); margin-top:10px; letter-spacing:.04em; }
@media (max-width:780px){ .stat-row{ grid-template-columns:repeat(2,1fr); } }

/* ---------- Footer ---------- */
footer{ background:var(--navy); color:#fff; padding:64px 0 32px; }
footer .foot-grid{ display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; padding-bottom:48px; border-bottom:1px solid rgba(255,255,255,.15); }
footer h4{ color:#fff; font-family:var(--font-mono); font-size:11px; text-transform:uppercase; letter-spacing:.06em; margin-bottom:18px; font-weight:600; }
footer a, footer p{ color:rgba(255,255,255,.75); font-size:13.5px; }
footer li{ margin-bottom:10px; }
footer a:hover{ color:#fff; }
.foot-mark{ display:flex; align-items:center; gap:10px; margin-bottom:16px; }
.foot-mark img{ height:26px; }
.foot-mark .name{ font-family:var(--font-disp); font-weight:800; font-size:16px; color:#fff; }
.foot-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:24px; flex-wrap:wrap; gap:12px; }
.foot-bottom span{ font-family:var(--font-mono); font-size:11px; color:rgba(255,255,255,.5); }
@media (max-width:780px){ footer .foot-grid{ grid-template-columns:1fr 1fr; } }

/* ---------- Forms ---------- */
label{ font-family:var(--font-mono); font-size:10px; text-transform:uppercase; letter-spacing:.05em; color:var(--ink-soft); display:block; margin-bottom:7px; }
input, textarea, select{
  width:100%; font-family:var(--font-sans); font-size:14px; padding:12px 14px;
  border:1px solid var(--line-strong); border-radius:var(--radius); background:#fff; color:var(--ink);
}
input:focus, textarea:focus, select:focus{ outline:2px solid var(--blue); outline-offset:1px; border-color:var(--blue); }
.field{ margin-bottom:20px; }

/* ---------- Utility ---------- */
.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:60px; }
@media (max-width:860px){ .grid-2{ grid-template-columns:1fr; gap:36px; } }

@media (max-width: 900px){
  .nav-links, .nav-cta .btn{ display:none; }
  .nav-burger{ display:block; }
  .page-hero h1{ font-size:32px; }
  section{ padding:56px 0; }
  .stat .num{ font-size:30px; }
}