/* Fluctuomètre : couleurs issues du logo, mise en page sobre. */
:root {
  --bg: #f7f8f7;
  --surface: #ffffff;
  --ink: #22343c;
  --ink-soft: #3f5b67;
  --muted: #5d6d74;
  --line: #dfe5e4;
  --teal: #2e8f92;
  --teal-dark: #23767a;
  --teal-tint: #e9f3f3;
  --orange: #f68b42;
  --danger: #b4232f;
  --danger-tint: #fbecec;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(34, 52, 60, 0.06), 0 8px 24px rgba(34, 52, 60, 0.06);
  --font: "Barlow", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Barlow Semi Condensed", "Barlow", system-ui, sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--teal-dark); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 2px; border-radius: 4px; }

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.15;
  margin: 0 0 0.5em;
  font-weight: 600;
}
h1 { font-size: clamp(2rem, 4.5vw, 3rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }

.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: var(--surface); padding: 8px 12px; z-index: 10; }

/* En-tête */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand img { width: 64px; }
.brand span { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; color: var(--ink-soft); letter-spacing: 0.02em; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
  text-decoration: none; color: var(--ink-soft); font-weight: 500;
  padding: 10px 12px; border-radius: 8px; min-height: 44px; display: inline-flex; align-items: center;
}
.nav a:hover { background: var(--teal-tint); color: var(--ink); }
@media (max-width: 640px) {
  .brand span { display: none; }
  .nav a { padding: 10px 8px; font-size: 0.95rem; }
}

/* Libellés et boutons */
.eyebrow {
  display: inline-block; font-family: var(--font-display); font-weight: 600; font-size: 0.85rem;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--teal-dark); margin-bottom: 12px;
}
.eyebrow::before {
  content: ""; display: inline-block; width: 18px; height: 3px; background: var(--orange);
  vertical-align: middle; margin-right: 8px; border-radius: 2px;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 12px 22px; border-radius: 8px; border: 1px solid transparent;
  font: 600 1rem var(--font); text-decoration: none; cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}
.btn-primary { background: var(--teal-dark); color: #fff; }
.btn-primary:hover { background: var(--ink-soft); color: #fff; }
.btn-primary:disabled { background: #8aa3a5; cursor: wait; }
.btn-ghost { background: transparent; color: var(--ink-soft); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink-soft); color: var(--ink); }
.btn-block { width: 100%; }

/* Sections */
section { padding: 72px 0; }
section + section { border-top: 1px solid var(--line); }
.lede { font-size: 1.2rem; color: var(--ink-soft); max-width: 60ch; }
.section-head { max-width: 680px; margin-bottom: 36px; }
.muted { color: var(--muted); }

/* Accueil */
.hero { padding: 64px 0 72px; background: var(--surface); }
.hero .wrap { display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; align-items: center; }
.hero-logo { justify-self: center; width: min(300px, 70vw); }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
@media (max-width: 820px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 32px; }
  .hero-logo { order: -1; width: 180px; }
}

.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }
.steps li {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px;
  counter-increment: step;
}
.steps li::before {
  content: counter(step); display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%;
  background: var(--teal-tint); color: var(--teal-dark); font-family: var(--font-display); font-weight: 700; margin-bottom: 14px;
}
.steps h3 { margin-bottom: 6px; }
.steps p { margin: 0; color: var(--muted); }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 960px) { .cards { grid-template-columns: 1fr; } }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; display: flex; flex-direction: column; box-shadow: var(--shadow);
}
.card-top { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 8px; }
.card-num { font-family: var(--font-display); font-weight: 700; color: var(--teal); font-size: 1.1rem; }
.card-period { font-size: 0.9rem; color: var(--muted); }
.card p { color: var(--ink-soft); }
.card ul { padding-left: 1.1em; margin: 0 0 16px; color: var(--ink-soft); }
.card li { margin-bottom: 4px; }
.risk {
  margin: auto 0 20px; padding: 12px 14px; border-left: 3px solid var(--orange);
  background: #fdf4ee; border-radius: 0 8px 8px 0; font-size: 0.97rem;
}

.about { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.about ul { padding-left: 1.1em; }
@media (max-width: 820px) { .about { grid-template-columns: 1fr; gap: 16px; } }
.quote {
  font-family: var(--font-display); font-size: 1.4rem; color: var(--ink-soft);
  border-left: 3px solid var(--teal); padding-left: 16px; margin: 24px 0 0;
}

/* Contact et newsletter */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 820px) { .contact { grid-template-columns: 1fr; } }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.inline-form { display: flex; gap: 10px; flex-wrap: wrap; }
.inline-form input { flex: 1 1 220px; }
.links { display: flex; gap: 10px; flex-wrap: wrap; }

/* Formulaires */
.field { margin-bottom: 18px; }
label { display: block; font-weight: 600; margin-bottom: 6px; }
.hint { display: block; font-size: 0.9rem; color: var(--muted); font-weight: 400; margin-top: 4px; }
input[type="email"],
input[type="url"],
input[type="text"],
select {
  width: 100%; min-height: 48px; padding: 10px 14px; font: 400 1rem var(--font); color: var(--ink);
  background: #fff; border: 1px solid #c5cfce; border-radius: 8px;
}
input:focus, select:focus { border-color: var(--teal-dark); outline: 3px solid rgba(46, 143, 146, 0.25); outline-offset: 0; }
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; font-size: 0.95rem; color: var(--ink-soft); }
.check input { width: 22px; height: 22px; margin: 2px 0 0; accent-color: var(--teal-dark); flex: none; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.status { margin-top: 14px; font-size: 0.97rem; }
.status:empty { display: none; }
.status.error { color: var(--danger); background: var(--danger-tint); padding: 10px 14px; border-radius: 8px; }
.status.ok { color: var(--teal-dark); }

/* Page stress test */
.test-head { background: var(--surface); padding: 40px 0 48px; }
.back { display: inline-flex; align-items: center; min-height: 44px; margin-bottom: 12px; font-weight: 500; }
.test-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: start; }
@media (max-width: 960px) { .test-layout { grid-template-columns: 1fr; } }
.scenario p, .scenario li { color: var(--ink-soft); }
.scenario h2 { font-size: 1.5rem; margin-top: 36px; }
.impacts { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.impacts li {
  background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 12px 16px;
}
.impacts strong { color: var(--ink); }
.conclusion {
  margin-top: 24px; padding: 18px 20px; border-left: 3px solid var(--orange); background: #fdf4ee; border-radius: 0 8px 8px 0;
}
.conclusion ul { margin: 8px 0; }
.form-card { position: sticky; top: 24px; }
.form-card h2 { font-size: 1.5rem; }
.report-content { margin: 18px 0 0; padding: 16px 0 0; border-top: 1px solid var(--line); font-size: 0.95rem; color: var(--muted); }
.report-content ul { margin: 6px 0 0; padding-left: 1.1em; }
.ai-note { margin: 12px 0 0; font-size: 0.9rem; font-style: italic; }
.confirm[hidden] { display: none; }
.confirm h2 { color: var(--teal-dark); }

/* Pied de page */
.site-footer { padding: 32px 0; color: var(--muted); font-size: 0.95rem; border-top: 1px solid var(--line); }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* Texte long (confidentialité) */
.prose { max-width: 72ch; }
.prose h2 { font-size: 1.4rem; margin-top: 32px; }
.jump { display: none; margin-top: 8px; }
@media (max-width: 960px) {
  .jump { display: inline-flex; }
  .form-card { position: static; scroll-margin-top: 16px; }
}
#form-title { scroll-margin-top: 16px; }

/* Mention IA générative */
.ai-callout {
  display: flex; gap: 10px; align-items: flex-start;
  margin: 16px 0; padding: 12px 14px; border-radius: 8px;
  background: #e8f5ec; border-left: 4px solid #23744a; color: #1d5e3a;
  font-weight: 600; font-size: 0.97rem; line-height: 1.45;
}
.ai-callout::before {
  content: "IA"; flex: none; padding: 1px 7px; border-radius: 4px;
  background: #23744a; color: #fff; font-size: 0.8rem; letter-spacing: 0.04em;
}
.hero .ai-callout { margin-top: 24px; max-width: 60ch; }