:root {
  --blue: #2f6df6;
  --dark: #0f172a;
  --gray: #475569;
  --bg-soft: #f5f8ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, sans-serif;
  color: var(--dark);
  background: #ffffff;
  line-height: 1.65;
}

/* STRUCTURE */
.container {
  max-width: 1200px;
  margin: auto;
  padding: 0 24px;
}

/* HERO */
.hero {
  background: #f7f9ff;
  padding: 96px 24px 120px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.badge {
  display: inline-block;
  background: #e9efff;
  color: var(--blue);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  margin-bottom: 20px;
  opacity: 0.9;
}

.product-name {
  margin-bottom: 14px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.product-name .brand {
  font-size: 39px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #1e40af; /* bleu foncé marque */
  position: relative;
  margin-left: -5px;
}

.product-name .product {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: #0f172a; /* noir sérieux */
}

.hero h1 {
  font-size: 45px;
  line-height: 1.2;
  margin-bottom: 24px;
}

.accent {
  color: var(--blue);
}

.hero-subtitle {
  font-size: 22px;
  color: var(--gray);
  max-width: 520px;
  margin-bottom: 32px;
}

.cta-primary {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  padding: 16px 28px;
  border-radius: 12px;
  text-decoration: none;
  font-size: 18px;
  font-weight: 600;
}

.cta-note {
  margin-top: 12px;
  font-size: 14px;
  color: #64748b;
}

.cta-form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.cta-form input {
  padding: 16px 18px;
  font-size: 16px;
  border-radius: 12px;
  border: 1px solid #cbd5f5;
  min-width: 260px;
}

.hero-visual {
  position: relative;
  text-align: center;
}

.hero-glow {
  position: absolute;
  width: 900px;
  height: 900px;
  top: 50%;
  left: 65%;
  transform: translate(-50%, -50%);
  background: radial-gradient(
    circle,
    rgba(47, 109, 246, 0.35) 0%,
    rgba(47, 109, 246, 0.18) 35%,
    rgba(47, 109, 246, 0.08) 55%,
    rgba(247, 249, 255, 0) 70%
  );
  filter: blur(60px);
  opacity: 0.9;
  z-index: 0;
  pointer-events: none;
}

.saas-mockup {
  position: relative;
  max-width: 100%;
  border-radius: 16px;
  box-shadow: 0 40px 80px rgba(15, 23, 42, 0.35);
  z-index: 1;
  filter: blur(1.5px);
  opacity: 0.95;
  transform: scale(1.01);
}

.mockup-caption {
  margin-top: 14px;
  font-size: 14px;
  color: #64748b;
}

/* VISION PRODUIT */

.vision {
  background: #f9fafb;
  padding: 24px 24px;
  border-top: none;
  border-bottom: 1px solid #e5e7eb;
  margin-bottom: -12px;
}

.vision-container {
  max-width: 900px;
  margin: 0 auto;
  text-align: left;
}

.vision-text {
  font-size: 14px;
  line-height: 1.6;
  color: #475569;
  margin-bottom: 14px;
  max-width: 720px;
  margin: 0 auto 14px auto;
}

.vision-text strong {
  color: #0f172a;
  font-weight: 600;
}

.vision-modules {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.vision-modules .module {
  padding: 5px 12px;
  font-size: 12px;
  border-radius: 999px;
  background-color:  #f1f5f9;
  color: #94a3b8;
  font-weight: 400;
}

.vision-modules .module.active {
  background-color: #0f172a;
  color: #ffffff;
  font-weight: 600;
}

/* PROBLÈME */
.problem {
  background: linear-gradient(to bottom, #f0f5ff, #ffffff);
  padding: 96px 0;
  padding-top: 52px;
}

.problem-container {
  max-width: 900px;
  margin: auto;
  text-align: center;
}

.problem-container p {
  font-size: 26px;
  color: var(--gray);
}

/* BÉNÉFICES */
.benefits {
  background: var(--bg-soft);
  padding: 96px 0;
  text-align: center;
}

.benefits h2 {
  font-size: 34px;
  margin-bottom: 56px;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
}

.benefit-card {
  background: #ffffff;
  padding: 36px;
  border-radius: 18px;
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.08);
}

.benefit-card h3 {
  font-size: 22px;
  margin-bottom: 14px;
}

.benefit-card p {
  font-size: 19px;
  color: var(--gray);
}

/* PREUVE */
.proof {
  padding: 120px 0;
}

.proof-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.proof h2 {
  font-size: 34px;
  margin-bottom: 20px;
}

.proof p {
  font-size: 21px;
  color: var(--gray);
}

.proof-list {
  list-style: none;
  padding: 0;
  margin-top: 28px;
}

.proof-list li {
  font-size: 19px;
  margin-bottom: 10px;
}

.proof-visual {
  display: flex;
  justify-content: center;
}

.pdf-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.pdf-wrapper img {
  width: 50%;
  border-radius: 16px;
  box-shadow: 0 30px 70px rgba(15, 23, 42, 0.25);
  filter: blur(2.5px);
  opacity: 0.92;
}

.preview-label {
  margin-top: 10px;
  font-size: 13px;
  color: #64748b;
  text-align: center;
}

/* FOOTER */
.footer {
  background: #0b1220;
  color: #cbd5f5;
  text-align: center;
  padding: 28px 16px;
  font-size: 14px;
}

.footer a {
  color: #9db7ff;
  text-decoration: none;
  font-weight: 500;
}

.footer a:hover {
  color: #ffffff;
  text-decoration: underline;
}

/* ===========================
   MOBILE OPTIMISATION
   =========================== */

@media (max-width: 768px) {

  /* HERO */
  .hero {
    padding: 64px 16px 80px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: left;
  }

  .hero-text {
    max-width: 100%;
  }

  .product-name {
    font-size: 18px;
    margin-bottom: 10px;
  }

  .hero h1 {
    font-size: 34px;
    line-height: 1.25;
  }

  .hero-subtitle {
    font-size: 20px;
  }

  .cta-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .cta-form input,
  .cta-primary {
    width: 100%;
    font-size: 18px;
  }

  /* HERO IMAGE */
  .hero-visual {
    order: 2;
  }

  .saas-mockup {
    max-width: 92%;
    filter: blur(0.8px);
    transform: none;
  }

  .hero-glow {
    width: 500px;
    height: 500px;
    left: 50%;
    top: 50%;
    opacity: 0.6;
  }

  /* PROBLEM */
  .problem-container p {
    font-size: 22px;
  }

  /* BENEFITS */
  .benefit-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* PROOF */
  .proof-grid {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: left;
  }

  .proof h2 {
    font-size: 30px;
  }

  .proof p {
    font-size: 20px;
  }

  .pdf-wrapper img {
    width: 85%;
  }

}