/* ============================================================
   BMDR — Assistance administrative et pré-comptable
   ============================================================ */

:root {
  --paper: #EFEBE1;
  --paper-raised: #F7F4EC;
  --ink: #1C2420;
  --ink-soft: #4A544C;
  --ledger: #3F5D50;
  --ledger-dark: #2C4238;
  --seal: #A9702F;
  --line: #CDC6B2;
  --line-strong: #B3AA8F;

  --font-display: "Fraunces", "Iowan Old Style", "Palatino Linotype", serif;
  --font-body: "IBM Plex Sans", "Segoe UI", Arial, sans-serif;

  --max-w: 1120px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }

a {
  color: var(--ledger-dark);
  text-decoration: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--seal);
  outline-offset: 3px;
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
  margin: 0;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; max-width: 38em; }

ul { margin: 0; padding: 0; list-style: none; }

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(239, 235, 225, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.brand small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 500;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  margin-top: 1px;
}

.main-nav ul {
  display: flex;
  gap: 32px;
}

.main-nav a {
  font-size: 0.95rem;
  color: var(--ink-soft);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.main-nav a:hover {
  color: var(--ink);
  border-color: var(--ledger);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ledger);
  color: #F7F4EC;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: 3px;
  transition: background 0.15s ease;
}

.header-cta:hover { background: var(--ledger-dark); color: #fff; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  position: relative;
}

.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 4px; }

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

.hero {
  padding: 96px 0 88px;
  position: relative;
  overflow: hidden;
}

.hero .wrap {
  position: relative;
}

.hero-mark {
  position: absolute;
  right: -60px;
  top: -40px;
  width: 420px;
  opacity: 0.55;
  pointer-events: none;
}

.hero-eyebrow {
  font-size: 0.95rem;
  color: var(--seal);
  font-weight: 600;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2.6rem, 5.5vw, 4.4rem);
  line-height: 1.04;
  max-width: 14ch;
}

.hero-tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.35rem;
  color: var(--ledger-dark);
  margin: 22px 0 26px;
  max-width: 26ch;
}

.hero-lede {
  font-size: 1.08rem;
  color: var(--ink-soft);
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  gap: 20px;
  align-items: center;
  margin-top: 34px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--ledger);
  color: #F7F4EC;
  padding: 14px 26px;
  border-radius: 3px;
  font-weight: 500;
  font-size: 1rem;
  transition: background 0.15s ease, transform 0.15s ease;
}

.btn-primary:hover { background: var(--ledger-dark); transform: translateY(-1px); }

.btn-ghost {
  color: var(--ink);
  font-weight: 500;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 3px;
}

.btn-ghost:hover { border-color: var(--ink); }

.hero-rule {
  margin-top: 64px;
  border: none;
  border-top: 1px solid var(--line);
}

.hero-note {
  margin-top: 20px;
  color: var(--ink-soft);
  font-size: 0.92rem;
  max-width: 52ch;
}

/* ---------- Intro / section headings ---------- */

.section {
  padding: 84px 0;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-head {
  max-width: 42em;
  margin-bottom: 52px;
}

.section-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--seal);
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  margin-bottom: 14px;
}

.section-head p {
  color: var(--ink-soft);
  font-size: 1.02rem;
}

/* ---------- Dossiers (service folders) ---------- */

.dossiers {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.dossier {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 2px;
  position: relative;
  padding: 40px 34px 30px;
}

.dossier-tab {
  position: absolute;
  top: -18px;
  left: 32px;
  background: var(--ledger);
  color: #F7F4EC;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 6px 14px 5px;
  border-radius: 2px 2px 0 0;
}

.dossier h3 {
  font-size: 1.3rem;
  margin: 6px 0 18px;
  padding-top: 4px;
}

.dossier ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 11px;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.dossier ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 1px;
  background: var(--line-strong);
}

.dossier ul li:last-child { margin-bottom: 0; }

/* ---------- Collaboration ---------- */

.collab {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: start;
}

.collab-copy h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  margin-bottom: 20px;
  max-width: 16ch;
}

.collab-copy p {
  color: var(--ink-soft);
  font-size: 1.03rem;
}

.notice {
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--seal);
  background: var(--paper-raised);
  padding: 26px 28px;
  border-radius: 2px;
}

.notice-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--seal);
  margin-bottom: 10px;
}

.notice p {
  font-size: 0.94rem;
  color: var(--ink-soft);
  margin-bottom: 0;
}

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

.contact {
  background: var(--ledger);
  color: #F3F1E7;
}

.contact .section-label { color: #C9A46B; }

.contact h2 {
  color: #F7F4EC;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 56px;
  align-items: start;
}

.contact-lede {
  color: #D8DBCE;
  font-size: 1.05rem;
  max-width: 42ch;
}

.contact-card {
  background: rgba(247, 244, 236, 0.06);
  border: 1px solid rgba(247, 244, 236, 0.25);
  border-radius: 2px;
  padding: 30px 32px;
}

.contact-card dl {
  margin: 0;
}

.contact-card dt {
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  color: #C9A46B;
  margin-top: 18px;
}

.contact-card dt:first-child { margin-top: 0; }

.contact-card dd {
  margin: 4px 0 0;
  font-size: 1.05rem;
  color: #F7F4EC;
}

.contact-card a { color: #F7F4EC; border-bottom: 1px solid rgba(247,244,236,0.4); }
.contact-card a:hover { border-color: #F7F4EC; }

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

.site-footer {
  border-top: 1px solid var(--line);
  padding: 40px 0;
}

.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
}

.footer-meta {
  color: var(--ink-soft);
  font-size: 0.86rem;
  text-align: right;
}

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

@media (max-width: 900px) {
  .dossiers { grid-template-columns: 1fr; }
  .collab { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-mark { display: none; }
}

@media (max-width: 720px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .header-cta { display: none; }
  .hero { padding: 64px 0 56px; }
  .section { padding: 60px 0; }
  .wrap { padding: 0 22px; }
  .footer-meta { text-align: left; }
  .site-footer .wrap { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 720px) {
  body.nav-open .main-nav {
    display: block;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--paper-raised);
    border-bottom: 1px solid var(--line);
    padding: 20px 22px 26px;
  }
  body.nav-open .main-nav ul {
    flex-direction: column;
    gap: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}