:root {
  --primary: #D93E46;
  --secondary: #F7F1EF;
  --bg-color: #ffffff;
  --text-color: #171717;
  --text-muted: #555555;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.3);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.08);
  --radius: 20px;
  --transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
  background-color: var(--bg-color);
  background-image: radial-gradient(#f0f0f0 0.5px, transparent 0.5px);
  background-size: 20px 20px; /* Subtle grain effect */
  color: var(--text-color);
  font-family: var(--font-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 90px; /* Space for the sticky bottom bar */
}

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

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  padding: 1rem 0;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
  justify-content: center;
}

nav a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}

nav a:hover {
  color: var(--primary);
}

/* Bento Grid */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: minmax(180px, auto);
  gap: 20px;
  padding: 40px 0;
}

.bento-item {
  background: var(--secondary);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border: 1px solid transparent;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.bento-item:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.bento-item.large {
  grid-column: span 2;
  grid-row: span 2;
}

.bento-item.wide {
  grid-column: span 2;
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}

/* Typography */
h1, h2, h3 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: 2.8rem; letter-spacing: -0.02em; }
h2 { font-size: 2rem; }
p { color: var(--text-muted); margin-bottom: 1.5rem; }

/* Interactive Elements */
.btn {
  display: inline-block;
  padding: 12px 32px;
  background-color: var(--primary);
  color: #ffffff;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  text-align: center;
}

.btn:hover {
  background-color: var(--text-color);
  transform: scale(1.05);
  box-shadow: 0 10px 20px rgba(217, 62, 70, 0.2);
}

/* Formulaire 'Restez informé' & Newsletter */
.newsletter-footer {
  padding: 80px 0 140px;
  background: linear-gradient(180deg, transparent 0%, var(--secondary) 100%);
  margin-top: 60px;
}

.newsletter-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  padding: 60px 40px;
  border-radius: 32px;
  box-shadow: var(--shadow-lg);
}

.newsletter-content h2 {
  font-size: 2.2rem;
  margin-bottom: 15px;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.newsletter-form {
  display: flex;
  gap: 12px;
  background: rgba(255, 255, 255, 0.5);
  padding: 8px;
  border-radius: 100px;
  border: 1px solid var(--glass-border);
  transition: var(--transition);
  max-width: 550px;
  margin: 0 auto;
}

.newsletter-form:focus-within {
  background: white;
  border-color: var(--primary);
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.newsletter-form input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 0 25px;
  font-family: var(--font-main);
  font-size: 1rem;
  outline: none;
}

.newsletter-form button {
  background: var(--primary);
  color: white;
  border: none;
  padding: 16px 35px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
}

.newsletter-form button:hover {
  background: var(--text-color);
  transform: scale(1.05);
}

/* Sticky Bottom Bar (Glassmorphism) */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--glass-border);
  padding: 16px 24px;
  box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.05);
}

.sticky-cta p {
  margin: 0;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text-color);
}

.sticky-cta .btn-glass {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 12px 32px;
  border-radius: 50px;
  color: var(--text-color);
  text-decoration: none;
  font-weight: 700;
  transition: var(--transition);
}

.sticky-cta .btn-glass:hover {
  background: rgba(255, 255, 255, 0.4);
  transform: scale(1.05);
  border-color: var(--primary);
}

/* Responsive */
@media (max-width: 600px) {
  .bento-grid {
    grid-template-columns: 1fr;
  }
  h1 { font-size: 2.2rem; }
  .newsletter-form {
    flex-direction: column;
    background: transparent;
    border: none;
    padding: 0;
    gap: 12px;
  }
  .newsletter-form input {
    background: white;
    padding: 18px 25px;
    border-radius: 100px;
    border: 1px solid var(--glass-border);
  }
    .sticky-cta {
    gap: 15px;
    padding: 15px 20px;
    flex-direction: column;
    text-align: center;
  }
  body {
    padding-bottom: 160px;
  }
}

/* Additional Content Elements */
.img-placeholder {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #fdfcfb 0%, #e2d1c3 100%);
  border-radius: 12px;
  margin-bottom: 15px;
}

.sub-nav {
  margin-top: 20px;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}

.sub-nav a {
  padding: 15px;
  background: var(--secondary);
  border-radius: 12px;
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: var(--transition);
}

.sub-nav a:hover {
  background: var(--primary);
  color: white;
}