:root {
  --navy: #1B2A4A;
  --blue: #3B82F6;
  --blue-light: #60A5FA;
  --blue-pale: #EFF6FF;
  --gray: #6B7280;
  --gray-light: #F5F7FA;
  --white: #FFFFFF;
  --radius-card: 16px;
  --radius-btn: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', Arial, Helvetica, sans-serif;
  color: var(--navy);
  background: var(--white);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 64px 0;
}

/* Buttons */

.btn-primary {
  display: inline-block;
  background: var(--blue);
  color: var(--white);
  font-weight: 600;
  font-size: 1.0625rem;
  text-decoration: none;
  white-space: nowrap;
  padding: 16px 24px;
  border-radius: var(--radius-btn);
  transition: background 0.2s ease, transform 0.2s ease;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--blue-light);
  transform: translateY(-1px);
}

.btn-wrap {
  text-align: center;
}

.btn-note {
  margin-top: 14px;
  font-size: 0.9375rem;
  color: var(--gray);
}

/* Hero */

.hero {
  text-align: center;
  padding: 48px 0 56px;
  background: linear-gradient(180deg, var(--blue-pale) 0%, var(--white) 100%);
}

.hero .logo {
  height: 140px;
  width: auto;
  margin: 0 auto 32px;
}

.hero h1 {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.25;
  margin: 0 0 20px;
  color: var(--navy);
}

.hero p.subtitle {
  font-size: 1.0625rem;
  color: var(--gray);
  max-width: 600px;
  margin: 0 auto 36px;
}

/* Cards section: "Ce que vous recevez" */

.section-title {
  text-align: center;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--navy);
  margin: 0 0 40px;
}

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.card {
  background: var(--gray-light);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  text-align: left;
}

.card .icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: block;
}

.card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--navy);
}

.card p {
  margin: 0;
  color: var(--gray);
  font-size: 0.9375rem;
}

/* Reassurance section */

.reassurance {
  background: var(--navy);
  color: var(--white);
}

.reassurance .section-title {
  color: var(--white);
}

.checklist {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: 560px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 1rem;
}

.checklist .check {
  color: var(--blue-light);
  font-weight: 700;
  flex-shrink: 0;
}

/* How it works */

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.step {
  text-align: center;
}

.step .number {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--blue-pale);
  color: var(--blue);
  font-weight: 700;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--navy);
}

.step p {
  margin: 0;
  color: var(--gray);
  font-size: 0.9375rem;
}

/* Final CTA */

.final-cta {
  background: var(--blue-pale);
  text-align: center;
}

.final-cta h2 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--navy);
  margin: 0 0 28px;
}

/* Footer */

footer {
  text-align: center;
  padding: 40px 24px;
  color: var(--gray);
  font-size: 0.875rem;
}

footer .logo {
  height: 28px;
  width: auto;
  margin: 0 auto 16px;
  opacity: 0.85;
}

footer p {
  margin: 4px 0;
}

/* Tablet / desktop */

@media (min-width: 768px) {
  .hero .logo {
    height: 210px;
    margin-bottom: 48px;
  }

  .hero h1 {
    font-size: 2.75rem;
  }

  .hero p.subtitle {
    font-size: 1.1875rem;
  }

  .btn-primary {
    font-size: 1.125rem;
    padding: 18px 36px;
  }

  .cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .steps {
    grid-template-columns: repeat(3, 1fr);
  }

  section {
    padding: 88px 0;
  }
}