/* ============================================================
   LeadImmo — Landing Page "Guide du Vendeur"
   Template personnalisable par agence/ville
   ============================================================ */

:root {
  --color-primary: #1B4D3E;
  --color-primary-light: #2A7A5F;
  --color-accent: #D4A853;
  --color-dark: #1A1A2E;
  --color-light: #F8F6F0;
  --color-white: #FFFFFF;
  --color-text: #2D2D2D;
  --color-text-light: #6B7280;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Playfair Display', Georgia, serif;
  --max-width: 1100px;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---- HERO ---- */
.hero {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  padding: 60px 24px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--color-white);
  clip-path: ellipse(55% 100% at 50% 100%);
}

.hero-logo {
  max-height: 50px;
  margin-bottom: 24px;
  opacity: 0.9;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50px;
  padding: 8px 20px;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  max-width: 700px;
  margin: 0 auto 20px;
}

.hero h1 span {
  color: var(--color-accent);
}

.hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  opacity: 0.85;
  max-width: 550px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-cta {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-dark);
  padding: 16px 40px;
  border-radius: 50px;
  font-size: 1.05rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 16px rgba(212, 168, 83, 0.4);
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(212, 168, 83, 0.5);
}

/* ---- SECTION COMMUNE ---- */
.section {
  padding: 80px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}

.section h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-desc {
  color: var(--color-text-light);
  font-size: 1.05rem;
  max-width: 600px;
  margin-bottom: 48px;
}

/* ---- CHAPITRES DU GUIDE ---- */
.chapters {
  background: var(--color-light);
}

.chapters-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 80px 24px;
}

.chapters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  list-style: none;
}

.chapter-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.chapter-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.chapter-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
}

.chapter-text {
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.5;
}

/* ---- FORMULAIRE ---- */
.form-section {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  padding: 80px 24px;
}

.form-section .section-label {
  color: var(--color-accent);
}

.form-section h2 {
  color: var(--color-white);
}

.form-section .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

.form-container {
  max-width: 500px;
  margin: 0 auto;
}

.form-wrapper {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  color: var(--color-text);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid #E5E7EB;
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--color-primary);
}

.form-group input::placeholder {
  color: #B0B0B0;
}

.form-submit {
  width: 100%;
  padding: 16px;
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: 8px;
  font-size: 1.05rem;
  font-weight: 700;
  font-family: var(--font-main);
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.form-submit:hover {
  background: var(--color-primary-light);
  transform: translateY(-1px);
}

.form-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.form-privacy {
  text-align: center;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 16px;
}

/* ---- SUCCESS MESSAGE ---- */
.form-success {
  display: none;
  text-align: center;
  padding: 40px 24px;
}

.form-success.visible {
  display: block;
}

.form-success .checkmark {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 20px;
}

.form-success h3 {
  color: var(--color-dark);
  font-family: var(--font-heading);
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.form-success p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* ---- TÉMOIGNAGE (optionnel) ---- */
.testimonial {
  max-width: 650px;
  margin: 0 auto;
  text-align: center;
  padding: 60px 24px;
}

.testimonial-text {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-style: italic;
  color: var(--color-dark);
  line-height: 1.6;
  margin-bottom: 20px;
}

.testimonial-author {
  font-weight: 600;
  color: var(--color-text);
}

.testimonial-role {
  color: var(--color-text-light);
  font-size: 0.9rem;
}

/* ---- FOOTER ---- */
.footer {
  text-align: center;
  padding: 32px 24px;
  font-size: 0.82rem;
  color: var(--color-text-light);
  border-top: 1px solid #E5E7EB;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 640px) {
  .hero {
    padding: 40px 20px 60px;
  }

  .hero-cta {
    padding: 14px 32px;
    font-size: 1rem;
  }

  .section {
    padding: 60px 20px;
  }

  .chapters-inner {
    padding: 60px 20px;
  }

  .form-wrapper {
    padding: 24px 20px;
  }

  .chapter-card {
    padding: 20px;
  }
}