/* =========================================================
   SITE — Economiste de la construction / BIM
   Premium design — Outfit font, refined spacing, micro-animations
   Palette : anthracite, blanc casse, accent bleu nuit #1e3a5f
   ========================================================= */

/* ---------- Custom Properties ---------- */
:root {
  --color-bg: #fafaf9;
  --color-bg-alt: #f4f3f0;
  --color-surface: #ffffff;
  --color-ink: #18181b;
  --color-ink-soft: #3f3f46;
  --color-ink-mute: #71717a;
  --color-line: #e4e4e7;
  --color-line-strong: #c4c4c8;
  --color-accent: #1e3a5f;
  --color-accent-hover: #152d4a;
  --color-accent-soft: #edf1f7;
  --color-error: #b91c1c;

  --font-display: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-body: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, monospace;

  --radius: 6px;
  --radius-lg: 10px;
  --radius-xl: 16px;

  --container: 1200px;
  --gutter: 28px;

  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.03);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.06), 0 2px 6px rgba(0,0,0,0.03);
  --shadow-lg: 0 20px 40px -15px rgba(0,0,0,0.08);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--color-accent); text-decoration: none; transition: color 0.2s var(--ease-out); }
a:hover { text-decoration: underline; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { padding-left: 1.2em; }
::selection { background: var(--color-accent); color: #fff; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--color-ink);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.08;
}
h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.18;
  letter-spacing: -0.025em;
}
h3 { font-size: 1.25rem; line-height: 1.3; letter-spacing: -0.01em; }
h4 { font-size: 1rem; line-height: 1.4; font-weight: 500; }
p { margin: 0 0 1em; color: var(--color-ink-soft); }
.lead {
  font-size: 1.15rem;
  color: var(--color-ink-soft);
  line-height: 1.65;
  font-weight: 400;
}
.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1em;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
section { padding: 100px 0; }
section.tight { padding: 72px 0; }
section.alt { background: var(--color-bg-alt); }
section.dark { background: var(--color-ink); color: #e5e5e5; }
section.dark h1, section.dark h2, section.dark h3 { color: #fff; }
section.dark p { color: #a1a1aa; }
section.dark .eyebrow { color: #93b3d4; }

/* ---------- Scroll Reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 249, 0.85);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid rgba(228, 228, 231, 0.6);
  transition: box-shadow 0.3s var(--ease-out);
}
.site-header.scrolled {
  box-shadow: 0 1px 12px rgba(0,0,0,0.06);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: var(--color-ink);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 36px; height: 36px;
  background: var(--color-accent);
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}
.brand-meta { display: flex; flex-direction: column; line-height: 1.2; }
.brand-meta small { font-weight: 400; font-size: 0.7rem; color: var(--color-ink-mute); letter-spacing: 0.02em; }

.nav-links {
  display: flex;
  gap: 8px;
  align-items: center;
  list-style: none;
}
.nav-links a {
  color: var(--color-ink-mute);
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
  padding: 8px 14px;
  border-radius: var(--radius);
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--color-ink); background: rgba(0,0,0,0.03); text-decoration: none; }
.nav-links a.active { color: var(--color-ink); background: rgba(0,0,0,0.04); }
.nav-cta {
  background: var(--color-accent) !important;
  color: #fff !important;
  padding: 10px 20px !important;
  border-radius: var(--radius) !important;
  font-weight: 500 !important;
  transition: background 0.2s, transform 0.15s !important;
}
.nav-cta:hover { background: var(--color-accent-hover) !important; text-decoration: none !important; transform: translateY(-1px); }
.nav-cta:active { transform: translateY(0) scale(0.98); }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  border-radius: var(--radius);
  color: var(--color-ink);
  font-size: 1.3rem;
  transition: background 0.15s;
}
.nav-toggle:hover { background: rgba(0,0,0,0.04); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.92rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: all 0.25s var(--ease-out);
  cursor: pointer;
  position: relative;
  letter-spacing: -0.01em;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px) scale(0.98); }
.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(30,58,95,0.2);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  box-shadow: 0 4px 16px rgba(30,58,95,0.3);
  transform: translateY(-2px);
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 1px 4px rgba(30,58,95,0.2); }
.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-line-strong);
}
.btn-secondary:hover {
  border-color: var(--color-ink);
  background: rgba(0,0,0,0.02);
  transform: translateY(-1px);
}
.btn-arrow::after { content: "\2192"; font-weight: 400; transition: transform 0.2s var(--ease-out); }
.btn-arrow:hover::after { transform: translateX(4px); }

/* ---------- Hero ---------- */
.hero {
  padding: 80px 0 100px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-line);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 70% 30%, rgba(30,58,95,0.03) 0%, transparent 60%),
    repeating-linear-gradient(0deg, transparent 0 47px, rgba(30,58,95,0.025) 47px 48px),
    repeating-linear-gradient(90deg, transparent 0 47px, rgba(30,58,95,0.025) 47px 48px);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 120px;
  background: linear-gradient(to top, var(--color-bg), transparent);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 72px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero h1 { margin-bottom: 24px; }
.hero .lead { margin-bottom: 36px; max-width: 54ch; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-meta {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--color-ink-mute);
  padding-top: 24px;
  border-top: 1px solid var(--color-line);
}
.hero-meta span { display: flex; align-items: center; gap: 8px; }
.hero-meta span::before {
  content: "";
  width: 6px; height: 6px;
  background: var(--color-accent);
  border-radius: 1px;
  flex-shrink: 0;
}

/* Hero visual — document preview card */
.hero-visual {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  padding: 0;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}
.hero-visual:hover {
  transform: translateY(-4px) rotate(-0.5deg);
  box-shadow: 0 24px 48px -16px rgba(0,0,0,0.12);
}
.hero-visual-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-line);
}
.hero-visual-head strong { font-size: 0.82rem; font-weight: 600; color: var(--color-ink); }
.hero-visual-head span {
  font-size: 0.7rem;
  color: var(--color-ink-mute);
  font-family: var(--font-mono);
  background: var(--color-surface);
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid var(--color-line);
}
.mini-table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
.mini-table th, .mini-table td {
  text-align: left;
  padding: 10px 24px;
  border-bottom: 1px solid var(--color-line);
}
.mini-table th {
  font-weight: 600;
  color: var(--color-ink);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: rgba(0,0,0,0.015);
}
.mini-table td { color: var(--color-ink-soft); }
.mini-table td.num {
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-ink);
  font-weight: 500;
}
.mini-table tr:last-child td { border-bottom: none; font-weight: 600; }
.mini-table tr:hover td { background: rgba(30,58,95,0.02); }

/* ---------- Section header ---------- */
.section-header {
  max-width: 680px;
  margin: 0 auto 64px;
  text-align: center;
}
.section-header.left { text-align: left; margin-left: 0; }
.section-header h2 { margin-bottom: 16px; }
.section-header p { font-size: 1.05rem; color: var(--color-ink-mute); }

/* ---------- Cards / Grid ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: border-color 0.3s, transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
  position: relative;
}
.card:hover {
  border-color: var(--color-line-strong);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.card-icon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-weight: 700;
  font-size: 0.85rem;
  font-family: var(--font-mono);
}
.card h3 { margin-bottom: 10px; font-size: 1.1rem; }
.card p { font-size: 0.92rem; margin-bottom: 16px; color: var(--color-ink-mute); }
.card ul { margin: 0; padding-left: 18px; list-style: none; }
.card ul li {
  font-size: 0.86rem;
  color: var(--color-ink-soft);
  margin-bottom: 6px;
  position: relative;
  padding-left: 16px;
}
.card ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 10px;
  width: 5px; height: 1px;
  background: var(--color-accent);
}

/* ---------- Targets list ---------- */
.targets {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.target {
  text-align: center;
  padding: 32px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s, transform 0.3s var(--ease-out), box-shadow 0.3s;
}
.target:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}
.target-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-accent);
  margin-bottom: 10px;
}
.target strong { display: block; font-size: 0.88rem; color: var(--color-ink); font-weight: 500; }

/* ---------- Benefits ---------- */
.benefits { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px 56px; }
.benefit { display: flex; gap: 20px; }
.benefit-num {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border: 1.5px solid var(--color-accent);
  color: var(--color-accent);
  display: grid; place-items: center;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  transition: background 0.3s, color 0.3s;
}
.benefit:hover .benefit-num { background: var(--color-accent); color: #fff; }
.benefit h3 { font-size: 1rem; margin-bottom: 8px; }
.benefit p { font-size: 0.9rem; margin: 0; color: var(--color-ink-mute); }

/* ---------- CTA strip ---------- */
.cta-strip {
  background: var(--color-ink);
  color: #fff;
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(30,58,95,0.25) 0%, transparent 70%);
  pointer-events: none;
}
.cta-strip .container { position: relative; z-index: 1; }
.cta-strip h2 { color: #fff; margin-bottom: 14px; }
.cta-strip p { color: #a1a1aa; margin-bottom: 32px; font-size: 1.05rem; }
.cta-strip .btn-primary {
  background: #fff;
  color: var(--color-ink);
  border-color: #fff;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.cta-strip .btn-primary:hover {
  background: var(--color-accent-soft);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

/* ---------- Page services ---------- */
.service-block {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
  padding: 64px 0;
  border-bottom: 1px solid var(--color-line);
}
.service-block:last-child { border-bottom: none; }
.service-block .service-meta .eyebrow { display: block; }
.service-block h2 { margin-bottom: 16px; font-size: clamp(1.3rem, 2.5vw, 1.7rem); }
.service-block .service-detail h4 {
  margin-top: 28px;
  margin-bottom: 10px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-ink-mute);
  font-weight: 600;
}
.service-block .service-detail h4:first-child { margin-top: 0; }
.service-block ul { margin: 0; padding-left: 0; list-style: none; }
.service-block ul li {
  font-size: 0.92rem;
  color: var(--color-ink-soft);
  margin-bottom: 8px;
  padding-left: 20px;
  position: relative;
}
.service-block ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 11px;
  width: 8px; height: 1.5px;
  background: var(--color-accent);
  border-radius: 1px;
}
.service-block .deliverables {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  margin-top: 24px;
  font-size: 0.86rem;
  border: 1px solid var(--color-line);
  color: var(--color-ink-soft);
}
.service-block .deliverables strong { color: var(--color-ink); }

/* ---------- Page realisations ---------- */
.case {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: 36px;
  transition: box-shadow 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}
.case:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.case-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-line);
}
.case-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.case-type {
  font-size: 0.72rem;
  color: var(--color-ink-mute);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}
.case-body { padding: 36px 28px; }
.case-body h3 { font-size: 1.25rem; margin-bottom: 12px; }
.case-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 36px;
  margin-top: 28px;
}
.case-list h4 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-ink-mute);
  margin-bottom: 12px;
  font-weight: 600;
}
.case-list ul { margin: 0 0 24px; padding-left: 0; list-style: none; }
.case-list li {
  font-size: 0.88rem;
  color: var(--color-ink-soft);
  margin-bottom: 6px;
  padding-left: 18px;
  position: relative;
}
.case-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 10px;
  width: 6px; height: 1.5px;
  background: var(--color-accent);
}
.case-visual {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 22px;
  font-size: 0.78rem;
}
.case-visual .vh {
  display: flex;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line);
  margin-bottom: 12px;
  font-weight: 600;
  color: var(--color-ink);
  font-size: 0.8rem;
}
.case-visual .vh span:last-child {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-ink-mute);
  font-weight: 500;
}
.case-visual table { width: 100%; border-collapse: collapse; }
.case-visual td {
  padding: 7px 6px;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  color: var(--color-ink-soft);
  font-variant-numeric: tabular-nums;
}
.case-visual td:last-child {
  text-align: right;
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--color-ink);
}
.case-visual tr:last-child td { border-bottom: none; }
.case-disclaimer {
  font-size: 0.82rem;
  color: var(--color-ink-mute);
  font-style: italic;
  padding: 18px 24px;
  background: var(--color-bg-alt);
  border-left: 3px solid var(--color-accent);
  margin-bottom: 44px;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  line-height: 1.6;
}

/* ---------- Page contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 72px;
  align-items: start;
}
.contact-info h2 { margin-bottom: 20px; }
.contact-info p { margin-bottom: 28px; color: var(--color-ink-mute); }
.contact-steps {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  counter-reset: step;
}
.contact-steps li {
  counter-increment: step;
  padding: 16px 0;
  border-top: 1px solid var(--color-line);
  font-size: 0.92rem;
  color: var(--color-ink-soft);
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-steps li::before {
  content: counter(step);
  flex-shrink: 0;
  width: 28px; height: 28px;
  display: grid; place-items: center;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
}
.contact-steps li strong { color: var(--color-ink); display: block; margin-bottom: 2px; }

.info-list { list-style: none; padding: 0; margin: 0; }
.info-list li {
  padding: 16px 0;
  border-top: 1px solid var(--color-line);
  font-size: 0.9rem;
  color: var(--color-ink-soft);
}
.info-list li strong {
  display: block;
  color: var(--color-ink);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
  font-weight: 600;
}

.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 4px; }
.form-field { display: flex; flex-direction: column; margin-bottom: 20px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}
.form-field label .req { color: var(--color-error); }
.form-field input,
.form-field select,
.form-field textarea {
  font-family: inherit;
  font-size: 0.92rem;
  color: var(--color-ink);
  background: var(--color-bg);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius);
  padding: 12px 16px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(30,58,95,0.1);
  background: var(--color-surface);
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--color-ink-mute); opacity: 0.6; }
.form-field textarea { resize: vertical; min-height: 130px; }
.form-field .err {
  font-size: 0.78rem;
  color: var(--color-error);
  margin-top: 6px;
  display: none;
}
.form-field.has-error input,
.form-field.has-error select,
.form-field.has-error textarea { border-color: var(--color-error); }
.form-field.has-error .err { display: block; }
.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 8px;
}
.form-footer small { font-size: 0.76rem; color: var(--color-ink-mute); max-width: 300px; }
.form-status {
  display: none;
  padding: 18px 22px;
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  font-size: 0.9rem;
  line-height: 1.5;
}
.form-status.success { display: block; background: #ecfdf5; border: 1px solid #a7f3d0; color: #065f46; }
.form-status.error { display: block; background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }

/* Honeypot */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px; height: 1px;
  overflow: hidden;
  opacity: 0;
}

/* RGPD consent */
.consent-field { margin-bottom: 24px; }
.consent-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.82rem !important;
  font-weight: 400 !important;
  color: var(--color-ink-mute) !important;
  cursor: pointer;
  line-height: 1.55;
}
.consent-label input[type="checkbox"] {
  margin-top: 3px;
  flex-shrink: 0;
  width: 18px; height: 18px;
  accent-color: var(--color-accent);
  cursor: pointer;
  border-radius: 3px;
}
.consent-label a { color: var(--color-accent); text-decoration: underline; }
.consent-field.has-error .consent-label { color: #991b1b !important; }

/* ---------- Footer ---------- */
.site-footer {
  background: #18181b;
  color: #a1a1aa;
  padding: 72px 0 36px;
  font-size: 0.88rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}
.footer-grid h4 {
  color: #fff;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
  font-weight: 600;
}
.footer-grid ul { list-style: none; padding: 0; }
.footer-grid li { margin-bottom: 10px; }
.footer-grid a { color: #a1a1aa; transition: color 0.2s; }
.footer-grid a:hover { color: #fff; text-decoration: none; }
.footer-brand .brand { color: #fff; }
.footer-brand .brand:hover { text-decoration: none; }
.footer-brand .brand-mark { background: rgba(255,255,255,0.1); }
.footer-brand p { color: #71717a; font-size: 0.85rem; max-width: 36ch; margin-top: 14px; line-height: 1.6; }
.footer-bottom {
  border-top: 1px solid #27272a;
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.78rem;
  color: #52525b;
}

/* ---------- Page header (inner pages) ---------- */
.page-head {
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-bg-alt);
  position: relative;
}
.page-head::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent 0 47px, rgba(30,58,95,0.02) 47px 48px),
    repeating-linear-gradient(90deg, transparent 0 47px, rgba(30,58,95,0.02) 47px 48px);
  pointer-events: none;
}
.page-head .container { position: relative; z-index: 1; }
.page-head h1 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin-bottom: 16px; }
.page-head p { font-size: 1.05rem; max-width: 60ch; color: var(--color-ink-mute); }

/* ---------- Legal pages ---------- */
.page-content {
  max-width: 740px;
  margin: 0 auto;
  font-size: 0.95rem;
  line-height: 1.7;
}
.page-content h2 {
  font-size: 1.25rem;
  margin-top: 52px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-line);
}
.page-content h2:first-of-type { margin-top: 0; }
.page-content h3 { font-size: 1.05rem; margin-top: 32px; margin-bottom: 10px; }
.page-content p { color: var(--color-ink-soft); }
.page-content ul { padding-left: 22px; margin-bottom: 16px; list-style: disc; }
.page-content li { color: var(--color-ink-soft); margin-bottom: 8px; }
.page-content strong { color: var(--color-ink); }
.page-content .info-box {
  background: var(--color-accent-soft);
  border-left: 3px solid var(--color-accent);
  padding: 18px 22px;
  margin: 28px 0;
  font-size: 0.9rem;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  line-height: 1.6;
}
.page-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0 28px;
  font-size: 0.88rem;
}
.page-content table th,
.page-content table td {
  text-align: left;
  padding: 12px 14px;
  border: 1px solid var(--color-line);
}
.page-content table th {
  background: var(--color-bg-alt);
  font-weight: 600;
  color: var(--color-ink);
  font-size: 0.82rem;
}
.page-content table td { color: var(--color-ink-soft); vertical-align: top; }

/* ---------- Carousel (case-visual) ---------- */
.carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}
.carousel-track {
  display: flex;
  transition: transform 0.5s var(--ease-out);
  will-change: transform;
}
.carousel-slide {
  min-width: 100%;
  flex-shrink: 0;
  padding: 0;
}
.carousel-slide .vh {
  display: flex;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line);
  margin-bottom: 12px;
  font-weight: 600;
  color: var(--color-ink);
  font-size: 0.8rem;
}
.carousel-slide .vh span:last-child {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-ink-mute);
  font-weight: 500;
}
.carousel-slide table { width: 100%; border-collapse: collapse; font-size: 0.78rem; }
.carousel-slide td {
  padding: 7px 6px;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  color: var(--color-ink-soft);
  font-variant-numeric: tabular-nums;
}
.carousel-slide td:last-child {
  text-align: right;
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--color-ink);
}
.carousel-slide tr:last-child td { border-bottom: none; }

/* Placeholder slides */
.slide-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px 20px;
  min-height: 180px;
  color: var(--color-ink-mute);
}
.slide-placeholder-icon {
  font-size: 2.4rem;
  margin-bottom: 14px;
  opacity: 0.5;
  line-height: 1;
}
.slide-placeholder p {
  font-size: 0.82rem;
  line-height: 1.5;
  max-width: 28ch;
  margin: 0;
  color: var(--color-ink-mute);
}

/* Carousel navigation */
.carousel-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 0 6px;
}
.carousel-btn {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--color-line-strong);
  background: var(--color-surface);
  color: var(--color-ink);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
}
.carousel-btn:hover {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.carousel-btn:active { transform: scale(0.92); }
.carousel-dots {
  display: flex;
  gap: 6px;
  align-items: center;
}
.carousel-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-line-strong);
  border: none;
  cursor: pointer;
  transition: background 0.25s, transform 0.25s;
  padding: 0;
}
.carousel-dot.active {
  background: var(--color-accent);
  transform: scale(1.25);
}
.carousel-dot:hover:not(.active) { background: var(--color-ink-mute); }

/* Carousel inside case-visual: override old styles */
.case-visual .carousel .vh { margin-bottom: 12px; }

/* Support images and videos in slides */
.carousel-slide img,
.carousel-slide video {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  object-fit: cover;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .targets { grid-template-columns: repeat(3, 1fr); }
  .service-block { grid-template-columns: 1fr; gap: 28px; }
  .case-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .benefits { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 720px) {
  :root { --gutter: 20px; }
  section { padding: 72px 0; }
  .hero { padding: 56px 0 72px; }
  .nav { height: 60px; }
  .nav-toggle { display: flex; align-items: center; justify-content: center; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-line);
    padding: 8px 20px 20px;
    box-shadow: 0 12px 24px rgba(0,0,0,0.08);
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 12px 0 !important; border-radius: 0 !important; background: none !important; border-bottom: 1px solid var(--color-line); }
  .nav-links li:last-child a { border-bottom: none; }
  .nav-cta { display: inline-block !important; margin-top: 8px !important; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .targets { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .form-footer { flex-direction: column; align-items: stretch; }
  .form-footer .btn { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .page-head { padding: 56px 0 48px; }
  .hero-meta { flex-direction: column; gap: 10px; }
  .cta-strip { padding: 56px 0; }
  .contact-form { padding: 24px; }
}

@media (max-width: 480px) {
  .targets { grid-template-columns: 1fr; }
  .brand-meta span { font-size: 0.85rem; }
  h1 { font-size: 1.8rem; }
}

/* =========================================================
   GALERIE RÉALISATIONS — thèmes, documents, vidéos, images
   ========================================================= */

.theme-filter {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin: 0 0 48px;
}
.theme-filter button {
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--color-line-strong);
  background: var(--color-surface);
  color: var(--color-ink-soft);
  font-size: 0.85rem; font-weight: 500;
  transition: all 0.2s var(--ease-out);
}
.theme-filter button:hover { border-color: var(--color-accent); color: var(--color-accent); }
.theme-filter button.active {
  background: var(--color-accent); border-color: var(--color-accent); color: #fff;
}

.theme-section { margin-bottom: 72px; }
.theme-section:last-child { margin-bottom: 0; }
.theme-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 14px; margin-bottom: 28px;
}
.theme-head h2 { font-size: 1.45rem; }
.theme-head .theme-count { font-size: 0.8rem; color: var(--color-ink-mute); letter-spacing: 0.06em; text-transform: uppercase; }
.theme-desc { max-width: 70ch; color: var(--color-ink-mute); margin: -16px 0 28px; font-size: 0.95rem; }

/* ----- Cartes documents ----- */
.doc-grid {
  display: grid; gap: 24px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.doc-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out), border-color 0.25s;
}
.doc-card:hover, .doc-card:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-line-strong);
  outline: none;
}
.doc-card-cover {
  position: relative;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-line);
  aspect-ratio: 4 / 3;
  display: grid; place-items: center;
  overflow: hidden;
  padding: 14px;
}
.doc-card-cover img {
  max-height: 100%; width: auto; max-width: 100%;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-line);
  user-select: none; -webkit-user-drag: none;
}
.doc-card-cover::after {
  content: "Lire le document";
  position: absolute; inset: 0;
  display: grid; place-items: center;
  background: rgba(24,24,27,0.55);
  color: #fff; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.04em;
  opacity: 0; transition: opacity 0.25s var(--ease-out);
}
.doc-card:hover .doc-card-cover::after { opacity: 1; }
.doc-card-meta { padding: 16px 18px; }
.doc-card-meta strong { display: block; font-size: 0.95rem; font-weight: 600; line-height: 1.3; margin-bottom: 4px; }
.doc-card-meta span { font-size: 0.78rem; color: var(--color-ink-mute); }

/* ----- Visionneuse livre ----- */
.doc-viewer {
  position: fixed; inset: 0; z-index: 1000;
  display: none;
}
.doc-viewer.open { display: block; }
.doc-viewer-backdrop {
  position: absolute; inset: 0;
  background: rgba(15, 15, 18, 0.88);
  backdrop-filter: blur(4px);
}
.doc-viewer-panel {
  position: relative;
  width: min(1240px, calc(100vw - 24px));
  height: calc(100vh - 24px); height: calc(100dvh - 24px);
  margin: 12px auto;
  background: #1c1c20;
  border-radius: var(--radius-xl);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.doc-viewer-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}
.doc-viewer-title { display: flex; align-items: center; gap: 12px; min-width: 0; }
.doc-viewer-title strong { color: #fff; font-size: 0.95rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.doc-viewer-badge {
  flex-shrink: 0;
  font-size: 0.62rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
  color: #c8d6e8; background: rgba(147,179,212,0.15);
  border: 1px solid rgba(147,179,212,0.3);
  padding: 3px 10px; border-radius: 999px;
}
.doc-viewer-tools { display: flex; gap: 8px; }
.dv-btn {
  width: 38px; height: 38px;
  border-radius: 8px;
  display: grid; place-items: center;
  color: #d4d4d8; background: rgba(255,255,255,0.07);
  font-size: 1rem;
  transition: background 0.2s;
}
.dv-btn:hover { background: rgba(255,255,255,0.16); }
.doc-viewer-stage {
  flex: 1; min-height: 0;
  display: flex; align-items: center; justify-content: center;
  gap: 14px; padding: 18px;
}
.dv-arrow {
  width: 44px; height: 44px; flex-shrink: 0;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 1.6rem; line-height: 1;
  color: #fff; background: rgba(255,255,255,0.1);
  transition: background 0.2s, opacity 0.2s;
}
.dv-arrow:hover:not(:disabled) { background: rgba(255,255,255,0.22); }
.dv-arrow:disabled { opacity: 0.25; cursor: default; }
.book-wrap {
  flex: 1; height: 100%; min-width: 0;
  display: flex; align-items: center; justify-content: center;
  perspective: 2600px;
}
.book {
  position: relative;
  height: 100%;
  max-height: 100%; max-width: 100%;
  transform-style: preserve-3d;
}
.book.landscape { height: auto; width: 100%; max-width: min(100%, calc((100vh - 220px) * 1.414)); }
.book:not(.landscape) { width: auto; aspect-ratio: 0.707; max-width: 100%; }
.sheet {
  position: absolute; inset: 0;
  transform-origin: left center;
  transform-style: preserve-3d;
  transition: transform 0.9s var(--ease-out);
  cursor: pointer;
}
.sheet.flipped { transform: rotateY(-180deg); }
.sheet-front, .sheet-back {
  position: absolute; inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 3px;
  overflow: hidden;
}
.sheet-front {
  background: #fff;
  box-shadow: 0 4px 24px rgba(0,0,0,0.45);
}
.sheet-front img {
  width: 100%; height: 100%; object-fit: contain;
  background: #fff;
  user-select: none; -webkit-user-drag: none;
}
.sheet-back {
  transform: rotateY(180deg);
  background: linear-gradient(105deg, #ececea 0%, #f8f8f6 50%, #e3e3e0 100%);
  box-shadow: inset 0 0 40px rgba(0,0,0,0.06);
}
.doc-viewer-foot {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}
.dv-pages { color: #fff; font-size: 0.85rem; font-weight: 600; }
.dv-hint { color: #71717a; font-size: 0.75rem; text-align: right; }

/* ----- Cartes vidéos ----- */
.video-grid {
  display: grid; gap: 24px;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}
.video-card {
  position: relative;
  background: var(--color-ink);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 16 / 9;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out);
}
.video-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.video-card video.video-preview, .video-card img.video-poster {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
}
.video-card .video-overlay {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 16px;
  background: linear-gradient(180deg, transparent 45%, rgba(10,10,12,0.78) 100%);
  pointer-events: none;
}
.video-card .video-overlay strong { color: #fff; font-size: 0.92rem; font-weight: 600; }
.video-card .video-overlay span { color: #c4c4c8; font-size: 0.75rem; }
.video-card .play-badge {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 58px; height: 58px;
  border-radius: 50%;
  background: rgba(255,255,255,0.92);
  display: grid; place-items: center;
  pointer-events: none;
  transition: transform 0.25s var(--ease-spring), background 0.2s;
}
.video-card:hover .play-badge { transform: translate(-50%, -50%) scale(1.1); background: #fff; }
.video-card .play-badge::after {
  content: "";
  border-style: solid;
  border-width: 11px 0 11px 18px;
  border-color: transparent transparent transparent var(--color-accent);
  margin-left: 4px;
}

/* ----- Cartes images ----- */
.image-grid {
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.image-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4 / 3;
  background: var(--color-bg-alt);
}
.image-card img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.4s var(--ease-out);
  user-select: none; -webkit-user-drag: none;
}
.image-card:hover img { transform: scale(1.05); }
.image-card .image-caption {
  position: absolute; inset: auto 0 0 0;
  padding: 12px 14px;
  background: linear-gradient(180deg, transparent, rgba(10,10,12,0.75));
  color: #fff; font-size: 0.8rem; font-weight: 500;
  opacity: 0; transition: opacity 0.25s;
}
.image-card:hover .image-caption { opacity: 1; }

/* ----- Lightbox média ----- */
.media-lightbox { position: fixed; inset: 0; z-index: 1000; display: none; }
.media-lightbox.open { display: block; }
.media-lightbox-backdrop {
  position: absolute; inset: 0;
  background: rgba(10, 10, 12, 0.92);
  backdrop-filter: blur(4px);
}
.media-lightbox-body {
  position: relative;
  width: min(1200px, calc(100vw - 32px));
  height: calc(100vh - 48px); height: calc(100dvh - 48px);
  margin: 24px auto;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 12px;
}
.media-lightbox-body video, .media-lightbox-body img {
  max-width: 100%; max-height: calc(100% - 48px);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 60px rgba(0,0,0,0.6);
  user-select: none; -webkit-user-drag: none;
}
.media-lightbox-body figcaption { color: #d4d4d8; font-size: 0.85rem; }
.media-lightbox .media-close { position: absolute; top: -6px; right: 0; z-index: 2; }
.media-lightbox .lb-prev { position: absolute; left: -8px; top: 50%; transform: translateY(-50%); z-index: 2; }
.media-lightbox .lb-next { position: absolute; right: -8px; top: 50%; transform: translateY(-50%); z-index: 2; }

/* ----- Modal brochure ----- */
.brochure-modal { position: fixed; inset: 0; z-index: 1000; display: none; }
.brochure-modal.open { display: grid; place-items: center; padding: 20px; }
.brochure-backdrop {
  position: absolute; inset: 0;
  background: rgba(15, 15, 18, 0.7);
  backdrop-filter: blur(3px);
}
.brochure-panel {
  position: relative;
  width: min(460px, 100%);
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 32px 30px 28px;
}
.brochure-panel h3 { margin-bottom: 8px; }
.brochure-panel > p { font-size: 0.92rem; color: var(--color-ink-mute); margin-bottom: 20px; }
.brochure-close {
  position: absolute; top: 14px; right: 14px;
  width: 34px; height: 34px;
  border-radius: 8px;
  display: grid; place-items: center;
  color: var(--color-ink-mute);
  transition: background 0.2s, color 0.2s;
}
.brochure-close:hover { background: var(--color-bg-alt); color: var(--color-ink); }
.brochure-form .form-field { margin-bottom: 14px; }
.brochure-note { font-size: 0.75rem; color: var(--color-ink-mute); margin-top: 14px; line-height: 1.5; }

@media (max-width: 720px) {
  .doc-viewer-panel { width: 100vw; height: 100vh; height: 100dvh; margin: 0; border-radius: 0; }
  .doc-viewer-stage { padding: 10px; gap: 8px; }
  .dv-arrow { width: 36px; height: 36px; font-size: 1.3rem; }
  .dv-hint { display: none; }
  .book.landscape { max-width: 100%; }
  .media-lightbox .lb-prev { left: 4px; }
  .media-lightbox .lb-next { right: 4px; }
}