/* ============================================================
   H.D.D. — Consulting & Software
   Palette "Encre & Registre" : encre bleu-ardoise, papier froid,
   accent vert profond, codes module en mono.
   ============================================================ */

:root {
  --ink: #16262f;
  --ink-soft: #33454f;
  --paper: #f2f4f3;
  --card: #ffffff;
  --line: #d5dcd9;
  --accent: #0f7a6a;
  --accent-ink: #0a5a4e;
  --amber: #b4762a;
  --display: "Archivo", system-ui, sans-serif;
  --body: "Source Sans 3", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
}

img { max-width: 100%; display: block; }
a { color: var(--accent-ink); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 1.25rem; }

/* ---------- En-tête ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(242, 244, 243, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 1.5rem; height: 76px; }
.brand { display: flex; align-items: center; gap: .7rem; text-decoration: none; color: var(--ink); }
.brand-logo { height: 44px; width: auto; }
.brand-text strong { font-family: var(--display); font-weight: 800; font-size: 1.2rem; letter-spacing: .02em; display: block; line-height: 1.1; }
.brand-text small { font-family: var(--mono); font-size: .68rem; color: var(--ink-soft); letter-spacing: .08em; text-transform: uppercase; }

.main-nav { display: flex; gap: 1.4rem; margin-left: auto; }
.main-nav a {
  text-decoration: none; color: var(--ink); font-weight: 600; font-size: .95rem;
  padding: .35rem 0; border-bottom: 2px solid transparent;
}
.main-nav a:hover { border-bottom-color: var(--accent); }
.main-nav .nav-cta { background: var(--accent); color: #fff; padding: .45rem 1rem; border-radius: 4px; }
.main-nav .nav-cta:hover { background: var(--accent-ink); border-bottom-color: transparent; }

.header-tools { display: flex; align-items: center; gap: 1rem; }
.lang-switch { font-family: var(--mono); font-size: .85rem; color: var(--ink-soft); white-space: nowrap; }
.lang-switch a { text-decoration: none; color: var(--ink-soft); padding: .2rem .3rem; }
.lang-switch a.active { color: var(--accent-ink); font-weight: 600; border-bottom: 2px solid var(--accent); }

.burger { display: none; background: none; border: 0; cursor: pointer; padding: .4rem; }
.burger span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; }

/* ---------- Typo commune ---------- */
.eyebrow {
  font-family: var(--mono); font-size: .78rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent-ink); margin-bottom: .8rem;
}
.section { padding: 4.5rem 0; }
.section-title {
  font-family: var(--display); font-weight: 800; font-size: clamp(1.7rem, 3.5vw, 2.5rem);
  line-height: 1.15; margin-bottom: 1.2rem; max-width: 20ch;
}
.lead { font-size: 1.1rem; color: var(--ink-soft); max-width: 60ch; }

/* ---------- Hero / Présentation ---------- */
.hero { background: linear-gradient(180deg, #fff 0%, var(--paper) 100%); border-bottom: 1px solid var(--line); padding: 4.5rem 0; }
.hero-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 3rem; align-items: center; }
.hero h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(1.5rem, 3.2vw, 2.2rem); line-height: 1.3; margin-bottom: 2rem;
}
.mission { border-left: 3px solid var(--accent); padding-left: 1.4rem; }
.mission h2 { font-family: var(--display); font-size: 1.15rem; margin-bottom: .6rem; }
.mission p + p { margin-top: .8rem; }
.hero-media { text-align: center; }
.hero-logo { max-height: 220px; width: auto; margin: 0 auto 1.5rem; }
.hero-stat { font-family: var(--mono); color: var(--ink-soft); font-size: .9rem; }
.hero-stat span {
  display: block; font-family: var(--display); font-weight: 800;
  font-size: 3.4rem; color: var(--accent-ink); line-height: 1;
}

/* ---------- Expertise ---------- */
.expertise-list { display: grid; gap: 2rem; margin-top: 2.5rem; }
.expertise-card {
  display: grid; grid-template-columns: 280px 1fr;
  background: var(--card); border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
}
.expertise-media img { width: 100%; height: 100%; object-fit: cover; min-height: 200px; background: var(--line); }
.expertise-body { padding: 1.6rem 1.8rem; }
.mod-code { font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; color: var(--amber); margin-bottom: .4rem; }
.expertise-body h3 { font-family: var(--display); font-size: 1.25rem; margin-bottom: .5rem; }
.expertise-body .lead { font-size: 1rem; margin-bottom: .8rem; }
.expertise-body ul { padding-left: 1.2rem; display: grid; gap: .35rem; color: var(--ink-soft); }
.expertise-body li::marker { color: var(--accent); }

.why { margin-top: 3rem; background: var(--ink); color: #eef2f1; border-radius: 8px; padding: 2rem 2.2rem; }
.why h3 { font-family: var(--display); font-size: 1.3rem; margin-bottom: 1rem; }
.why ul { padding-left: 1.2rem; display: grid; gap: .5rem; }
.why li::marker { color: #6fd3c2; }

/* ---------- Produits ---------- */
.section-dark { background: var(--ink); color: #eef2f1; }
.section-dark .eyebrow { color: #6fd3c2; }
.section-dark .section-title { color: #fff; }
.product { display: grid; grid-template-columns: 1fr 1.4fr; gap: 2.5rem; margin-top: 2rem; align-items: start; }
.product-media img { border-radius: 8px; border: 1px solid #2c3f4a; background: #22343e; min-height: 240px; object-fit: cover; width: 100%; }
.product-body h3 { font-family: var(--display); font-size: 2rem; font-weight: 800; letter-spacing: .03em; }
.product-type {
  font-family: var(--mono); font-size: .8rem; vertical-align: middle;
  background: var(--accent); color: #fff; border-radius: 3px;
  padding: .25rem .6rem; margin-left: .6rem; letter-spacing: .06em;
}
.product-body > p { margin: 1rem 0 1.4rem; color: #c8d2d0; max-width: 62ch; }
.product-body h4 { font-family: var(--display); font-size: 1rem; margin-bottom: .5rem; }
.modules { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.6rem; padding: 0; }
.modules li {
  font-family: var(--mono); font-size: .82rem;
  border: 1px solid #3c525e; border-radius: 4px; padding: .35rem .7rem; color: #dfe7e5;
}
.product-features { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.product-features p { color: #c8d2d0; font-size: .96rem; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 2.5rem; margin-top: 2rem; }
.contact-form {
  background: var(--card); border: 1px solid var(--line); border-radius: 8px;
  padding: 1.8rem; display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; align-content: start;
}
.field { display: grid; gap: .35rem; }
.field-full { grid-column: 1 / -1; }
.field label { font-weight: 600; font-size: .92rem; }
.field input, .field select, .field textarea {
  font: inherit; color: var(--ink);
  border: 1px solid var(--line); border-radius: 5px;
  padding: .6rem .75rem; background: #fbfcfb; width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--accent); outline: 2px solid rgba(15, 122, 106, .25);
}
.btn {
  grid-column: 1 / -1; justify-self: start;
  font: 600 1rem var(--body); color: #fff; background: var(--accent);
  border: 0; border-radius: 5px; padding: .75rem 1.6rem; cursor: pointer;
}
.btn:hover { background: var(--accent-ink); }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

.notice { border-radius: 6px; padding: .9rem 1.1rem; margin: 1rem 0; font-weight: 600; }
.notice-ok { background: #e2f3ee; color: var(--accent-ink); border: 1px solid #bfe4da; }
.notice-error { background: #f9e8e4; color: #8c3a24; border: 1px solid #ecc9bf; }

.contact-info { display: grid; gap: 1.4rem; align-content: start; }
.contact-logo { max-height: 90px; width: auto; }
.coords h4 { font-family: var(--display); font-size: .95rem; margin: .8rem 0 .2rem; }
.coords p { color: var(--ink-soft); }
.gps { font-family: var(--mono); font-size: .85rem; color: var(--accent-ink); }
.map iframe { width: 100%; height: 260px; border: 1px solid var(--line); border-radius: 8px; }

/* ---------- Pied de page ---------- */
.site-footer { border-top: 1px solid var(--line); background: #fff; }
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.4rem 1.25rem; font-size: .9rem; color: var(--ink-soft);
}
.footer-inner a { font-family: var(--mono); text-decoration: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid, .product, .contact-grid { grid-template-columns: 1fr; }
  .hero-media { order: -1; }
  .hero-logo { max-height: 140px; }
  .expertise-card { grid-template-columns: 1fr; }
  .expertise-media img { max-height: 200px; }
}

@media (max-width: 720px) {
  .burger { display: block; }
  .main-nav {
    display: none; position: absolute; top: 76px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: #fff; border-bottom: 1px solid var(--line);
    padding: .5rem 1.25rem 1rem;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: .8rem 0; border-bottom: 1px solid var(--line); }
  .main-nav .nav-cta { margin-top: .6rem; text-align: center; border-radius: 5px; }
  .contact-form { grid-template-columns: 1fr; padding: 1.3rem; }
  .product-features { grid-template-columns: 1fr; }
  .section { padding: 3rem 0; }
}