/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bleu:        #185FA5;
  --bleu-clair:  #E6F1FB;
  --bleu-fonce:  #0C447C;
  --gris:        #5F5E5A;
  --gris-clair:  #F1EFE8;
  --blanc:       #ffffff;
  --radius:      10px;
  --shadow:      0 2px 12px rgba(24,95,165,.12);
  --transition:  .22s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--gris);
  background: var(--blanc);
}

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

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

.container {
  width: min(1100px, 100% - 2.5rem);
  margin-inline: auto;
}

/* ===== TYPOGRAPHY ===== */
h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.15; color: var(--bleu-fonce); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.1rem); color: var(--bleu-fonce); }
h3 { font-size: 1.15rem; color: var(--bleu-fonce); margin-bottom: .35rem; }

.section-title { text-align: center; margin-bottom: .5rem; }
.section-sub    { text-align: center; margin-bottom: 2.5rem; color: var(--gris); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: .7rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--bleu);
  color: var(--blanc);
  border-color: var(--bleu);
}
.btn-primary:hover { background: var(--bleu-fonce); border-color: var(--bleu-fonce); }

.btn-secondary {
  background: transparent;
  color: var(--bleu);
  border-color: var(--bleu);
}
.btn-secondary:hover { background: var(--bleu); color: var(--blanc); }

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bleu-fonce);
  border-bottom: none;
  box-shadow: 0 2px 12px rgba(12,68,124,.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--blanc);
  white-space: nowrap;
  letter-spacing: .01em;
}
.logo span { color: #a8cff0; }

.main-nav ul {
  display: flex;
  gap: 2rem;
}
.main-nav a {
  font-weight: 500;
  color: rgba(255,255,255,.8);
  position: relative;
  padding-bottom: 2px;
  transition: color var(--transition);
}
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--bleu);
  transition: width var(--transition);
}
.main-nav a:hover { color: var(--blanc); }
.main-nav a:hover::after { width: 100%; }

/* burger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--blanc);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, var(--bleu-clair) 0%, var(--blanc) 60%);
  padding: 5rem 0 4rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}

.hero-location {
  font-size: .85rem;
  font-weight: 600;
  color: var(--bleu);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: .75rem;
}

.hero-text h1 { margin-bottom: 1rem; }

.hero-sub {
  font-size: 1.1rem;
  max-width: 52ch;
  margin-bottom: 2rem;
  color: var(--gris);
}

.hero-visual svg {
  width: 240px;
  height: 240px;
}

/* ===== SERVICES ===== */
.services {
  padding: 5rem 0;
  background: var(--gris-clair);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--blanc);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 24px rgba(24,95,165,.18);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: .75rem;
}

.card p { font-size: .95rem; margin-bottom: 1rem; }

.card-list { font-size: .9rem; }
.card-list li {
  padding: .25rem 0 .25rem 1.1rem;
  position: relative;
  color: var(--gris);
}
.card-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--bleu);
  font-size: .8rem;
  top: .3rem;
}

/* ===== À PROPOS ===== */
.apropos {
  padding: 5rem 0;
  background: var(--blanc);
}

.apropos-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3.5rem;
  align-items: start;
}

.avatar-placeholder {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: var(--bleu-clair);
  color: var(--bleu);
  font-size: 3.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--bleu);
  flex-shrink: 0;
}

.apropos-text h2 { margin-bottom: 1rem; }
.apropos-text p  { margin-bottom: 1rem; max-width: 60ch; }
.apropos-text .btn { margin-top: .5rem; }

/* ===== CONTACT ===== */
.contact {
  padding: 5rem 0;
  background: var(--bleu-clair);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 3.5rem;
  align-items: start;
}

.contact-intro h2 { margin-bottom: 1rem; }
.contact-intro p   { margin-bottom: .75rem; }

.contact-coords {
  margin: 1.25rem 0;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.contact-coords li {
  display: flex;
  align-items: center;
  gap: .65rem;
  font-size: .95rem;
  color: var(--bleu-fonce);
}
.contact-coords svg { flex-shrink: 0; color: var(--bleu); }
.contact-coords a { color: var(--bleu); font-weight: 500; }
.contact-coords a:hover { text-decoration: underline; }

.contact-zone {
  margin-top: 1.5rem;
  font-size: .9rem;
  color: var(--bleu-fonce);
  background: var(--blanc);
  padding: .85rem 1rem;
  border-radius: var(--radius);
  border-left: 4px solid var(--bleu);
}

/* form */
.contact-form {
  background: var(--blanc);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.form-group label {
  font-size: .9rem;
  font-weight: 600;
  color: var(--bleu-fonce);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: .6rem .9rem;
  border: 1.5px solid #c8d8ec;
  border-radius: 6px;
  font-size: .95rem;
  font-family: inherit;
  color: var(--gris);
  background: var(--blanc);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--bleu);
  box-shadow: 0 0 0 3px rgba(24,95,165,.12);
}

.form-group textarea { resize: vertical; }

.form-notice {
  font-size: .9rem;
  min-height: 1.4em;
  color: var(--bleu-fonce);
}
.form-notice.error { color: #c0392b; }
.form-notice.success { color: #1a7a4a; }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--bleu-fonce);
  color: rgba(255,255,255,.8);
  padding: 2.5rem 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .6rem;
  text-align: center;
}

.footer-brand {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--blanc);
}

.footer-location { font-size: .85rem; }

.footer-nav {
  display: flex;
  gap: 1.5rem;
  margin: .4rem 0;
}
.footer-nav a {
  font-size: .9rem;
  color: rgba(255,255,255,.7);
  transition: color var(--transition);
}
.footer-nav a:hover { color: var(--blanc); }

.footer-copy { font-size: .8rem; color: rgba(255,255,255,.5); }

.footer-credit { font-size: .75rem; color: rgba(255,255,255,.5); }
.footer-credit a { color: rgba(255,255,255,.7); text-decoration: none; }
.footer-credit a:hover { color: var(--blanc); text-decoration: underline; }

/* ===== MENTIONS LÉGALES ===== */
.legal {
  padding: 3.5rem 0 5rem;
  max-width: 720px;
}

.legal-retour {
  display: inline-block;
  margin-bottom: 2rem;
  color: var(--bleu);
  font-weight: 600;
}
.legal-retour:hover { text-decoration: underline; }

.legal h2 {
  font-size: 1.2rem;
  margin: 2rem 0 .6rem;
}

.legal p { margin-bottom: .75rem; max-width: 65ch; }

.legal a { color: var(--bleu); font-weight: 500; }
.legal a:hover { text-decoration: underline; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0; right: 0;
    background: var(--bleu-fonce);
    border-bottom: 1px solid rgba(255,255,255,.1);
    padding: 1rem 1.25rem;
  }
  .main-nav.open { display: block; }
  .main-nav ul   { flex-direction: column; gap: .75rem; }

  .hero-inner         { grid-template-columns: 1fr; }
  .hero-visual        { display: none; }

  .card--featured     { grid-column: span 1; }

  .apropos-inner      { grid-template-columns: 1fr; }
  .apropos-visual     { display: flex; justify-content: center; }

  .contact-inner      { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .services-grid { grid-template-columns: 1fr; }
}