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

html,
body {
  height: 100%;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #ffffff;
  color: #111827;
}

/* CONTAINER */

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* HEADER CLAIR */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 0;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  color: #111827;
}

.logo span {
  color: #2563eb;
}

.main-nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.main-nav a {
  color: #4b5563;
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.18s ease;
}

.main-nav a:hover {
  color: #111827;
}

.header-cta {
  margin-left: 1.5rem;
}

/* BOUTONS */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.7rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease,
    background 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background: linear-gradient(120deg, #2563eb, #4f46e5);
  color: white;
  box-shadow: 0 14px 28px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 38px rgba(37, 99, 235, 0.5);
}

.btn-secondary {
  background: #f3f4f6;
  color: #111827;
}

.btn-secondary:hover {
  background: #e5e7eb;
}

/* HERO */

.hero {
  background: radial-gradient(circle at top left, #e0f2fe 0%, #ffffff 55%);
  padding: 3.5rem 0 3.5rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 2.5rem;
  line-height: 1.15;
  margin-bottom: 1.15rem;
}

.gradient-text {
  background: linear-gradient(120deg, #2563eb, #4f46e5);
  -webkit-background-clip: text;
  color: transparent;
}

.hero-subtitle {
  font-size: 1rem;
  max-width: 32rem;
  color: #4b5563;
  margin-bottom: 1.8rem;
}

.eyebrow {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: #2563eb;
  margin-bottom: 0.9rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.hero-bullets {
  list-style: none;
  color: #4b5563;
  font-size: 0.95rem;
}

.hero-bullets li + li {
  margin-top: 0.3rem;
}

/* GLOBE 3D */

.hero-globe {
  display: flex;
  justify-content: center;
  align-items: center;
}

#globe-container {
  width: 360px;
  height: 360px;
  border-radius: 50%;
  position: relative;
  overflow: hidden;
  /* Halo visuel derrière le canvas */
  background: radial-gradient(circle at 30% 20%, #ffffff 0%, #bfdbfe 40%, #93c5fd 70%, #60a5fa 100%);
  box-shadow:
    0 30px 60px rgba(37, 99, 235, 0.3),
    0 0 0 22px rgba(191, 219, 254, 0.8),
    0 0 0 44px rgba(219, 234, 254, 0.7);
}

#globe-container canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* SECTIONS GÉNÉRALES */

.section {
  background: #ffffff;
  padding: 3.5rem 0;
}

.section h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.section-subtitle {
  color: #4b5563;
  margin-bottom: 1.8rem;
}

/* COMMENT ÇA MARCHE */

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.step-card {
  background: #ffffff;
  border-radius: 1.25rem;
  padding: 1.4rem 1.5rem;
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.12);
}

.step-number {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #2563eb;
  color: white;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

/* FORMULAIRE */

.form-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr);
  gap: 2.5rem;
  align-items: flex-start;
}

.form-intro h2 {
  margin-bottom: 1rem;
}

.form-intro ul {
  margin-top: 0.8rem;
  padding-left: 1.1rem;
  color: #4b5563;
}

.form-intro li + li {
  margin-top: 0.35rem;
}

.trip-form {
  background: #ffffff;
  border-radius: 1.5rem;
  padding: 1.8rem 1.6rem 2rem;
  box-shadow: 0 16px 38px rgba(15, 23, 42, 0.12);
}

.trip-form h3 {
  margin-top: 0.4rem;
  margin-bottom: 0.9rem;
  font-size: 1.05rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 1.2rem;
  margin-bottom: 1.4rem;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: #4b5563;
  margin-bottom: 0.3rem;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border-radius: 0.8rem;
  border: 1px solid #d1d5db;
  padding: 0.65rem 0.75rem;
  font: inherit;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field textarea {
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 1px #93c5fd;
}

.form-submit {
  margin-top: 0.4rem;
}

/* FOOTER */

.site-footer {
  border-top: 1px solid #e5e7eb;
  background: #f9fafb;
  padding: 1.4rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #6b7280;
}

.footer-links {
  display: flex;
  gap: 1rem;
}

.footer-links a {
  color: #4b5563;
  text-decoration: none;
}

/* RESPONSIVE */

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    padding-top: 3rem;
  }

  .hero-globe {
    order: -1;
    margin-bottom: 2rem;
  }

  .form-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .steps-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  #globe-container {
    width: 280px;
    height: 280px;
  }
}