/* prediag-energie.com - feuille de styles
   Identite : sauge profonde + sable + champagne.
   Stack : DM Serif Display (italique pour emphase) + Inter (corps).
   Posture : aire, contemplative, valeur elargie. */

@font-face {
  font-family: 'DM Serif Display';
  src: url('/fonts/dm-serif-display-400-normal.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'DM Serif Display';
  src: url('/fonts/dm-serif-display-400-italic.woff2') format('woff2');
  font-weight: 400; font-style: italic; font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('/fonts/inter-400.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('/fonts/inter-500.woff2') format('woff2');
  font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('/fonts/inter-600.woff2') format('woff2');
  font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('/fonts/inter-700.woff2') format('woff2');
  font-weight: 700; font-style: normal; font-display: swap;
}

:root {
  --bg: #F4F1EA;
  --bg-elev: #FBF9F4;
  --ink: #2D3024;
  --ink-muted: #5C5F4F;
  --ink-soft: #7A7E6E;
  --accent: #4A6B47;
  --accent-hover: #3A5639;
  --accent-soft: #ECF1EC;
  --champagne: #B89968;
  --rule: #DCD8CC;
  --rule-strong: #C9C4B5;
  --focus: #2D3024;

  --font-display: 'DM Serif Display', 'Iowan Old Style', 'Apple Garamond', Baskerville, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;

  --max-w-narrow: 38rem;
  --max-w-content: 56rem;
  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem;
  --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem; --space-20: 5rem; --space-24: 6rem; --space-32: 8rem;
  --radius-input: 8px;
  --radius-card: 12px;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-body); font-size: 16px; line-height: 1.7;
  color: var(--ink); background: var(--bg);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'kern', 'liga';
}
img, picture, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: underline; text-decoration-color: var(--rule-strong); text-decoration-thickness: 1px; text-underline-offset: 4px; transition: text-decoration-color 0.18s ease; }
a:hover { text-decoration-color: var(--accent); }
a:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 2px; }
button { font: inherit; border: 0; background: transparent; cursor: pointer; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }
::selection { background: var(--accent); color: var(--bg-elev); }

.shell { max-width: var(--max-w-content); margin-inline: auto; padding-inline: clamp(1.25rem, 5vw, 2.25rem); }
.narrow { max-width: var(--max-w-narrow); margin-inline: auto; }
section { position: relative; }

.kicker {
  font-family: var(--font-body); font-size: 0.6875rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.18em;
  color: var(--accent); margin-bottom: var(--space-8);
}

.display {
  font-family: var(--font-display); font-weight: 400;
  line-height: 1.1; letter-spacing: -0.01em; color: var(--ink);
}
.display em { font-style: italic; color: var(--accent); }
.display-xl { font-size: clamp(2.25rem, 5.5vw, 3.875rem); }
.display-lg { font-size: clamp(1.75rem, 4vw, 2.625rem); }
.display-md { font-size: clamp(1.375rem, 3vw, 1.75rem); }

.lede { font-size: clamp(1rem, 1.6vw, 1.125rem); line-height: 1.65; color: var(--ink-muted); }

.brand-mark {
  display: inline-flex; align-items: center; gap: 0.6em;
  font-family: var(--font-display); font-size: 1.0625rem;
  color: var(--ink); padding-top: var(--space-10); font-style: italic;
}
.brand-mark::before {
  content: ''; width: 8px; height: 8px;
  background: var(--accent); border-radius: 50%; display: inline-block;
}

.hero {
  padding-top: clamp(var(--space-16), 9vw, var(--space-32));
  padding-bottom: clamp(var(--space-20), 10vw, var(--space-32));
  text-align: center;
}
.hero .narrow { text-align: center; }
.hero-title { text-wrap: balance; margin-bottom: var(--space-8); }
.hero-sub { margin-inline: auto; max-width: 40ch; margin-bottom: var(--space-10); }
.hero-cta { display: inline-flex; flex-direction: column; align-items: center; gap: var(--space-6); }

.trust-line { font-size: 0.8125rem; color: var(--ink-soft); letter-spacing: 0.04em; }
.trust-line .sep {
  display: inline-block; width: 4px; height: 4px;
  border-radius: 50%; background: var(--rule-strong);
  margin: 0 0.7em; vertical-align: middle;
}

.btn {
  display: inline-flex; align-items: center; gap: var(--space-3);
  padding: 0.95rem 1.75rem;
  font-family: var(--font-body); font-weight: 600; font-size: 0.9375rem;
  letter-spacing: 0.005em;
  color: var(--accent); background: transparent;
  border: 1px solid var(--accent); border-radius: 999px;
  text-decoration: none;
  transition: background 0.18s ease, color 0.18s ease;
}
.btn:hover, .btn:focus-visible { background: var(--accent); color: var(--bg-elev); text-decoration: none; }
.btn::after { content: '\2192'; transition: transform 0.18s ease; }
.btn:hover::after { transform: translateX(3px); }

.section { padding-block: clamp(var(--space-20), 8vw, var(--space-32)); }
.section-intro { text-align: center; margin-bottom: var(--space-20); }
.section-intro h2 { text-wrap: balance; margin-bottom: var(--space-6); }

.benefits { display: grid; grid-template-columns: 1fr; gap: var(--space-20); }
.benefit { display: grid; grid-template-columns: 1fr; gap: var(--space-4); text-align: left; }
.benefit-mark { font-size: 1.25rem; color: var(--champagne); line-height: 1; }
.benefit-title {
  font-family: var(--font-display); font-size: clamp(1.375rem, 2.5vw, 1.625rem);
  line-height: 1.25; color: var(--ink); font-style: italic;
}
.benefit-text { color: var(--ink-muted); font-size: 1.0625rem; line-height: 1.7; }

.benefit + .benefit { position: relative; }
.benefit + .benefit::before {
  content: ''; position: absolute;
  top: calc(-1 * var(--space-10));
  left: 50%; transform: translateX(-50%);
  width: 32px; height: 1px;
  background: var(--rule-strong);
}

.checklist-section {
  background: var(--bg-elev);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.checklist-intro { text-align: center; margin-bottom: var(--space-16); }
.checklist-intro h2 { text-wrap: balance; margin-bottom: var(--space-4); }

.includes {
  list-style: none; padding: 0;
  margin: 0 auto var(--space-12);
  max-width: 30rem; text-align: left;
}
.includes li {
  display: grid; grid-template-columns: auto 1fr; gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--rule);
  color: var(--ink); font-size: 0.9375rem; line-height: 1.55;
}
.includes li:last-child { border-bottom: 0; }
.includes .diamond { color: var(--champagne); line-height: 1.55; font-size: 0.875rem; }

.lead-form {
  background: var(--bg);
  padding: clamp(var(--space-8), 4vw, var(--space-12));
  border-radius: var(--radius-card);
  border: 1px solid var(--rule);
  max-width: 30rem; margin: 0 auto;
}
.field { display: grid; gap: var(--space-2); margin-bottom: var(--space-5); }
.field label { font-size: 0.8125rem; font-weight: 500; color: var(--ink-muted); }
.field input, .field select {
  appearance: none; -webkit-appearance: none;
  background: var(--bg-elev);
  border: 1px solid var(--rule-strong);
  padding: 0.75rem 0.9rem;
  font-size: 1rem; color: var(--ink);
  border-radius: var(--radius-input);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field input:focus, .field select:focus {
  outline: 0; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%232D3024' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 0.9rem center;
  padding-right: 2rem;
}
.form-actions { display: flex; flex-direction: column; gap: var(--space-4); margin-top: var(--space-8); }
.btn-submit {
  width: 100%; justify-content: center;
  background: var(--accent); color: var(--bg-elev);
  border-color: var(--accent);
}
.btn-submit:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.rgpd { font-size: 0.75rem; color: var(--ink-soft); line-height: 1.6; }
.form-status {
  margin-top: var(--space-5);
  padding: var(--space-4) var(--space-5);
  font-size: 0.9375rem;
  border-radius: var(--radius-input);
  background: var(--accent-soft); color: var(--ink);
  display: none;
}
.form-status.is-visible { display: block; }
.form-status.is-error { background: #FEF2F2; color: #991B1B; }

.hero-photo { margin: 0; padding: 0 var(--space-6); max-width: 1280px; margin-inline: auto; }
.hero-photo img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; border-radius: 4px; }

.bio { padding-block: var(--space-20) var(--space-16); border-top: 1px solid var(--rule); }
.bio-inner { max-width: 62ch; margin-inline: auto; text-align: center; }
.bio .kicker { margin-bottom: var(--space-4); }
.bio-text { font-size: 0.9375rem; line-height: 1.7; color: var(--ink-muted); margin-bottom: var(--space-3); }
.bio-text strong { color: var(--ink); font-weight: 600; }
.bio-text:last-child { margin-bottom: 0; }

.footer {
  padding-block: var(--space-16) var(--space-12);
  border-top: 1px solid var(--rule);
  font-size: 0.875rem; color: var(--ink-soft);
  text-align: center;
}
.footer-row { display: flex; flex-direction: column; gap: var(--space-4); align-items: center; }
.footer a { text-decoration-color: var(--rule-strong); }
.footer a:hover { color: var(--accent); }
.footer .legal-links { display: flex; gap: var(--space-6); flex-wrap: wrap; justify-content: center; }

.legal-shell {
  max-width: 42rem; margin-inline: auto;
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}
.legal-shell h1 { font-family: var(--font-display); font-size: clamp(1.875rem, 4vw, 2.5rem); margin-bottom: var(--space-10); }
.legal-shell h2 { font-family: var(--font-display); font-style: italic; font-size: 1.375rem; margin-top: var(--space-12); margin-bottom: var(--space-4); color: var(--ink); }
.legal-shell h2:first-of-type { margin-top: var(--space-6); }
.legal-shell p { margin-bottom: var(--space-4); color: var(--ink-muted); }
.legal-shell ul { padding-left: 1.25rem; margin-bottom: var(--space-4); color: var(--ink-muted); }
.legal-shell li + li { margin-top: var(--space-2); }
.legal-shell strong { color: var(--ink); font-weight: 600; }
.legal-shell a { color: var(--accent); text-decoration-color: var(--accent); }
.legal-shell .updated { font-size: 0.875rem; color: var(--ink-soft); margin-bottom: var(--space-10); font-style: italic; }

.back-link { display: inline-flex; align-items: center; gap: var(--space-2); font-size: 0.875rem; color: var(--ink-muted); margin-bottom: var(--space-10); text-decoration: none; }
.back-link::before { content: '\2190'; }
.back-link:hover { color: var(--accent); }

.merci { min-height: 70vh; display: grid; place-items: center; text-align: center; padding-block: var(--space-16); }
.merci-inner { max-width: 32rem; padding-inline: 1.5rem; }
.merci h1 { font-family: var(--font-display); font-size: clamp(2rem, 5vw, 2.75rem); margin-bottom: var(--space-6); text-wrap: balance; }
.merci h1 em { font-style: italic; color: var(--accent); }
.merci p { color: var(--ink-muted); line-height: 1.6; margin-bottom: var(--space-4); }
.merci .lede { font-size: 1.0625rem; color: var(--ink); margin-bottom: var(--space-8); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}
@media print {
  .lead-form, .btn { display: none; }
}