/* ============================================================
   Respi.info — Site Vitrine
   Charte alignée sur l'app (globals.css)
   ============================================================ */
:root {
  --bleu: #4A90E2;
  --bleu-deep: #2E6CB6;
  --bleu-light: #6BA9E8;
  --bleu-doux: #EAF3FC;
  --sauge: #7EB09B;
  --sauge-deep: #5B8B75;
  --sauge-doux: #E8F1EC;
  --ambre-doux: #FCF2E0;
  --ambre: #E8A83F;
  --corail-doux: #FDEDE7;
  --corail: #E07856;
  --texte: #1F3A52;
  --texte-doux: #5B7185;
  --fond: #F4F9FC;
  --blanc: #FFFFFF;
  --max: 1100px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Inter", system-ui, sans-serif;
  background: var(--fond);
  color: var(--texte);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--bleu-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--bleu-doux);
}
.site-header-inner {
  max-width: var(--max); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; gap: 16px;
}
.logo-bloc { display: inline-flex; align-items: center; gap: 10px; }
.logo-bloc img { width: 32px; height: 32px; border-radius: 7px; }
.logo-bloc-txt { font-size: 19px; font-weight: 800; color: var(--bleu-deep); letter-spacing: -0.01em; }
.logo-bloc-txt small { display: block; font-size: 11px; font-weight: 500; color: var(--texte-doux); letter-spacing: 0.04em; text-transform: uppercase; margin-top: -2px; }

.nav-toggle {
  display: none;
  background: transparent; border: 1px solid var(--bleu-doux);
  border-radius: 8px; padding: 8px 12px;
  font-size: 18px; cursor: pointer; color: var(--bleu-deep);
}

.site-nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.site-nav a {
  padding: 8px 14px; border-radius: 10px;
  font-size: 14.5px; font-weight: 600; color: var(--texte-doux);
}
.site-nav a:hover { background: var(--bleu-doux); color: var(--bleu-deep); text-decoration: none; }
.site-nav a.is-active { color: var(--bleu-deep); background: var(--bleu-doux); }
.site-nav .cta {
  background: var(--bleu-deep); color: var(--blanc);
  padding: 9px 16px; margin-left: 6px;
}
.site-nav .cta:hover { background: var(--bleu); color: var(--blanc); text-decoration: none; }

@media (max-width: 820px) {
  .nav-toggle { display: inline-block; }
  .site-nav {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--blanc);
    border-bottom: 1px solid var(--bleu-doux);
    flex-direction: column; align-items: stretch;
    padding: 8px 16px 14px;
    box-shadow: 0 6px 18px rgba(46,108,182,0.06);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { width: 100%; padding: 12px 14px; }
  .site-nav .cta { margin: 6px 0 0; text-align: center; }
}

/* ===== Sections ===== */
.section { padding: 64px 20px; }
.section--soft { background: var(--bleu-doux); }
.section--sage { background: var(--sauge-doux); }
.section--cream { background: var(--ambre-doux); }
.section-inner { max-width: var(--max); margin: 0 auto; }

.eyebrow {
  display: inline-block;
  font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--bleu-deep);
  background: var(--blanc);
  padding: 6px 12px; border-radius: 999px;
  border: 1px solid var(--bleu-doux);
  margin-bottom: 14px;
}

h1, h2, h3 { letter-spacing: -0.01em; }
h1 { font-size: clamp(34px, 5vw, 52px); line-height: 1.1; margin: 8px 0 18px; color: var(--texte); }
h2 { font-size: clamp(26px, 3.5vw, 36px); line-height: 1.2; margin: 0 0 18px; color: var(--bleu-deep); }
h3 { font-size: 19px; margin: 0 0 8px; color: var(--texte); }
p.lead { font-size: 19px; color: var(--texte-doux); max-width: 640px; }

/* ===== Hero ===== */
.hero {
  padding: 80px 20px 70px;
  background:
    radial-gradient(circle at 80% 0%, rgba(126, 176, 155, 0.18), transparent 55%),
    radial-gradient(circle at 0% 100%, rgba(74, 144, 226, 0.18), transparent 60%),
    var(--fond);
}
.hero-inner {
  max-width: var(--max); margin: 0 auto;
  display: grid; gap: 40px;
  grid-template-columns: 1.2fr 1fr; align-items: center;
}
@media (max-width: 820px) {
  .hero-inner { grid-template-columns: 1fr; }
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.btn {
  display: inline-block;
  padding: 14px 22px; border-radius: 12px;
  font-size: 16px; font-weight: 600;
  border: 2px solid transparent; cursor: pointer;
  transition: all 0.18s ease;
}
.btn.primary { background: var(--bleu-deep); color: var(--blanc); border-color: var(--bleu-deep); }
.btn.primary:hover { background: var(--bleu); text-decoration: none; color: var(--blanc); }
.btn.secondary { background: var(--blanc); color: var(--bleu-deep); border-color: var(--bleu-deep); }
.btn.secondary:hover { background: var(--bleu-doux); text-decoration: none; }
.btn.ghost { background: transparent; color: var(--bleu-deep); border-color: var(--bleu-doux); }
.btn.ghost:hover { background: var(--bleu-doux); text-decoration: none; }

/* visuel "carte météo" du hero */
.hero-visual {
  background: var(--blanc);
  border-radius: 22px;
  padding: 24px;
  box-shadow: 0 18px 40px rgba(46, 108, 182, 0.12);
  border: 1px solid var(--bleu-doux);
}
.hero-visual h4 { margin: 0 0 4px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--texte-doux); }
.hero-visual .meteo-score {
  font-size: 64px; font-weight: 800; color: var(--sauge-deep); line-height: 1; margin: 6px 0;
}
.hero-visual .meteo-label { color: var(--sauge-deep); font-weight: 700; font-size: 18px; }
.hero-visual .meteo-line { display: flex; justify-content: space-between; padding: 8px 0; border-top: 1px solid var(--bleu-doux); font-size: 14px; }
.hero-visual .meteo-line span:last-child { color: var(--texte-doux); }
.hero-visual .meteo-tip { background: var(--sauge-doux); color: var(--sauge-deep); padding: 10px 12px; border-radius: 10px; font-size: 13.5px; margin-top: 12px; line-height: 1.4; }

/* ===== Grille de cartes ===== */
.cards-grid {
  display: grid; gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.card {
  background: var(--blanc);
  border-radius: 18px;
  padding: 24px;
  border: 1px solid var(--bleu-doux);
  box-shadow: 0 4px 20px rgba(46, 108, 182, 0.06);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(46, 108, 182, 0.1); }
.card-emoji { font-size: 32px; line-height: 1; margin-bottom: 10px; }
.card h3 { margin-bottom: 6px; }
.card p { margin: 6px 0; color: var(--texte-doux); font-size: 15px; }
.card a.card-link {
  display: inline-block; margin-top: 10px;
  font-weight: 600; font-size: 14px;
}

/* Variantes colorées */
.card--bleu { border-left: 4px solid var(--bleu-deep); }
.card--sauge { border-left: 4px solid var(--sauge-deep); }
.card--ambre { border-left: 4px solid var(--ambre); }
.card--corail { border-left: 4px solid var(--corail); }

/* ===== Liste de pas (parcours) ===== */
.steps { counter-reset: step; display: grid; gap: 14px; margin-top: 18px; }
.step {
  display: grid; grid-template-columns: 56px 1fr; gap: 16px;
  background: var(--blanc); border-radius: 14px;
  padding: 18px 20px; border: 1px solid var(--bleu-doux);
}
.step::before {
  counter-increment: step;
  content: counter(step);
  background: var(--bleu-deep); color: var(--blanc);
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 18px;
}
.step h3 { margin: 0 0 4px; font-size: 17px; }
.step p { margin: 0; color: var(--texte-doux); font-size: 15px; }

/* ===== Public segments (pour-qui) ===== */
.public-block {
  background: var(--blanc); border-radius: 18px;
  padding: 28px; margin-bottom: 22px;
  border: 1px solid var(--bleu-doux);
  display: grid; grid-template-columns: 1fr; gap: 18px;
}
@media (min-width: 760px) {
  .public-block { grid-template-columns: 1.4fr 1fr; align-items: center; }
}
.public-block h2 { margin: 0 0 10px; }
.public-block .public-tag {
  display: inline-block; background: var(--bleu-doux); color: var(--bleu-deep);
  padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 700;
  letter-spacing: 0.04em; text-transform: uppercase;
  margin-bottom: 8px;
}
.public-bullets { margin: 8px 0 14px; padding-left: 18px; }
.public-bullets li { margin: 6px 0; color: var(--texte); }
.public-side {
  background: var(--bleu-doux); border-radius: 14px; padding: 20px;
}
.public-side h4 { margin: 0 0 8px; color: var(--bleu-deep); }
.public-side p { margin: 0 0 12px; font-size: 14px; color: var(--texte); }

/* ===== Téléchargements ===== */
.dl-list { display: grid; gap: 14px; }
.dl-item {
  display: grid; gap: 14px;
  grid-template-columns: 64px 1fr auto;
  align-items: center;
  background: var(--blanc); border-radius: 14px;
  padding: 18px 20px; border: 1px solid var(--bleu-doux);
}
@media (max-width: 600px) {
  .dl-item { grid-template-columns: 1fr; text-align: left; }
  .dl-item .dl-action { justify-self: start; }
}
.dl-icon {
  width: 56px; height: 56px;
  border-radius: 12px; background: var(--bleu-doux);
  color: var(--bleu-deep);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 14px; letter-spacing: 0.05em;
}
.dl-meta h3 { margin: 0 0 4px; font-size: 17px; }
.dl-meta p { margin: 0; color: var(--texte-doux); font-size: 14px; }
.dl-action .btn { padding: 10px 18px; font-size: 14px; }

/* ===== Bandeau CTA ===== */
.cta-band {
  background: linear-gradient(135deg, var(--bleu-deep), var(--sauge-deep));
  color: var(--blanc);
  border-radius: 22px;
  padding: 40px 28px;
  text-align: center;
}
.cta-band h2 { color: var(--blanc); margin-bottom: 8px; }
.cta-band p { color: rgba(255,255,255,0.92); max-width: 560px; margin: 0 auto 18px; }
.cta-band .btn.primary { background: var(--blanc); color: var(--bleu-deep); border-color: var(--blanc); }
.cta-band .btn.primary:hover { background: var(--bleu-doux); }
.cta-band .btn.secondary { background: transparent; color: var(--blanc); border-color: var(--blanc); }
.cta-band .btn.secondary:hover { background: rgba(255,255,255,0.1); }

/* ===== KPI / chiffres clés ===== */
.kpi-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); margin-top: 12px; }
.kpi {
  background: var(--blanc);
  border-radius: 14px; padding: 18px;
  text-align: center; border: 1px solid var(--bleu-doux);
}
.kpi-num { font-size: 32px; font-weight: 800; color: var(--bleu-deep); line-height: 1; }
.kpi-lbl { font-size: 13px; color: var(--texte-doux); margin-top: 6px; line-height: 1.4; }

/* ===== Liste partenaires ===== */
.partners-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.partner {
  background: var(--blanc); border-radius: 14px;
  padding: 22px; border: 1px solid var(--bleu-doux);
}
.partner h3 { margin: 0 0 6px; }
.partner p { margin: 6px 0; font-size: 15px; color: var(--texte-doux); }
.partner a { font-weight: 600; }

/* ===== FAQ accordion simple ===== */
details.faq {
  background: var(--blanc); border-radius: 12px;
  border: 1px solid var(--bleu-doux);
  padding: 14px 18px; margin-bottom: 10px;
}
details.faq summary {
  cursor: pointer; font-weight: 600; color: var(--bleu-deep);
  list-style: none; display: flex; justify-content: space-between; gap: 12px;
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; font-size: 22px; color: var(--bleu-deep); line-height: 1; }
details.faq[open] summary::after { content: "−"; }
details.faq p { margin: 10px 0 0; color: var(--texte); }

/* ===== Notes / encadrés ===== */
.callout {
  background: var(--ambre-doux);
  border-left: 4px solid var(--ambre);
  padding: 16px 20px;
  border-radius: 10px;
  margin: 18px 0;
}
.callout--sauge { background: var(--sauge-doux); border-color: var(--sauge-deep); }
.callout--bleu { background: var(--bleu-doux); border-color: var(--bleu-deep); }
.callout p { margin: 6px 0; }
.callout strong { color: var(--texte); }

/* ===== Footer ===== */
.site-footer {
  background: var(--texte);
  color: rgba(255,255,255,0.85);
  padding: 50px 20px 30px;
}
.site-footer-inner {
  max-width: var(--max); margin: 0 auto;
  display: grid; gap: 32px;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
}
@media (max-width: 820px) { .site-footer-inner { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .site-footer-inner { grid-template-columns: 1fr; } }
.site-footer h4 {
  color: var(--blanc); margin: 0 0 12px;
  font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em;
}
.site-footer a { color: rgba(255,255,255,0.85); display: block; padding: 4px 0; font-size: 14px; }
.site-footer a:hover { color: var(--blanc); text-decoration: underline; }
.site-footer .baseline {
  font-size: 13px; line-height: 1.6; color: rgba(255,255,255,0.7);
}
.site-footer .baseline strong { color: var(--blanc); }
.site-footer-bottom {
  max-width: var(--max); margin: 30px auto 0;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 20px;
  font-size: 12px; color: rgba(255,255,255,0.65);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}

/* ===== Page header (autres pages) ===== */
.page-head {
  padding: 60px 20px 32px;
  background: linear-gradient(180deg, var(--bleu-doux), transparent);
}
.page-head-inner { max-width: var(--max); margin: 0 auto; }
.page-head h1 { font-size: clamp(30px, 4vw, 44px); }
.page-head p { font-size: 18px; color: var(--texte-doux); max-width: 720px; }

/* Liste pictos / fonctionnalités */
.feat-list { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 10px; }
.feat-list li { display: grid; grid-template-columns: 28px 1fr; gap: 10px; align-items: start; }
.feat-list li::before { content: "✓"; color: var(--sauge-deep); font-weight: 800; font-size: 18px; line-height: 1.4; }

/* Tag horaire / temps */
.time-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--sauge-doux); color: var(--sauge-deep);
  padding: 6px 12px; border-radius: 999px;
  font-size: 13px; font-weight: 700;
  letter-spacing: 0.02em;
}

/* ===== Formulaire de contact ===== */
.form-card {
  background: var(--blanc);
  border: 1px solid var(--bleu-doux);
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 4px 20px rgba(46, 108, 182, 0.06);
}
.contact-form { display: flex; flex-direction: column; gap: 14px; }
.form-row { display: flex; flex-direction: column; gap: 6px; }
.form-row label {
  font-size: 14px; font-weight: 600;
  color: var(--texte);
}
.form-row .req { color: var(--corail); font-weight: 700; margin-left: 2px; }
.form-row input[type="text"],
.form-row input[type="email"],
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 16px;
  font-family: inherit;
  color: var(--texte);
  background: var(--blanc);
  border: 1.5px solid var(--bleu-doux);
  border-radius: 12px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--bleu-deep);
  box-shadow: 0 0 0 3px rgba(46, 108, 182, 0.12);
}
.form-row textarea { resize: vertical; min-height: 120px; line-height: 1.5; }
.form-grid {
  display: grid; gap: 14px;
  grid-template-columns: 1fr 1fr;
}
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }
.form-check {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 14px; color: var(--texte-doux); line-height: 1.5;
  font-weight: 400;
  cursor: pointer;
}
.form-check input[type="checkbox"] {
  margin-top: 4px;
  width: 18px; height: 18px;
  accent-color: var(--bleu-deep);
  flex-shrink: 0;
  cursor: pointer;
}
.form-actions {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  margin-top: 6px;
}
.form-actions .btn { flex: 0 0 auto; }
.form-status {
  font-size: 14px;
  color: var(--texte-doux);
}

/* Utility */
.center { text-align: center; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mt-12 { margin-top: 12px; }
.mb-12 { margin-bottom: 12px; }
.mb-24 { margin-bottom: 24px; }
.muted { color: var(--texte-doux); }
.small { font-size: 14px; }