/* ===== RESET & VARIABILI ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --primary: #0a2540;
  --primary-light: #1a3a5c;
  --accent: #f5a623;
  --accent-hover: #e09515;
  --gray-bg: #f0f4f9;
  --card-bg: #ffffff;
  --text-dark: #1a2634;
  --text-muted: #4a5a72;
  --radius: 20px;
  --shadow: 0 12px 40px rgba(10, 37, 64, 0.08);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--gray-bg);
  color: var(--text-dark);
  line-height: 1.6;
}
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}
a { text-decoration: none; color: inherit; }

/* ===== NAVIGATION ===== */
nav {
  background: var(--primary);
  padding: 0 28px;
  border-radius: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  margin: 16px auto 28px;
  max-width: 1240px;
  box-shadow: 0 8px 24px rgba(10,37,64,0.18);
  position: sticky;
  top: 12px;
  z-index: 100;
}
.nav-container {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0;
}
.nav-logo {
  color: #fff;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}
.nav-logo i { color: var(--accent); margin-right: 10px; }
.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  align-items: center;
}
.nav-links a {
  color: rgba(255,255,255,0.8);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  color: #fff;
  border-bottom-color: var(--accent);
}
.nav-links a i { margin-right: 8px; }
.menu-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.8rem; cursor: pointer; }

/* ===== BUTTONS ===== */
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 14px 32px;
  border-radius: 60px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 6px 20px rgba(245, 166, 35, 0.35);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); }

.btn-secondary {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 14px 32px;
  border-radius: 60px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 6px 20px rgba(10,37,64,0.25);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.btn-secondary:hover { background: #0d2f4e; transform: translateY(-2px); }

/* ===== HERO ===== */
.hero {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 40px 48px;
  margin-bottom: 32px;
  box-shadow: var(--shadow);
}
.hero-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  padding: 0;
}
.hero-text h1 {
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.hero-text h1 span { color: var(--accent); }
.hero-text p {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 8px 0 20px;
}
.hero-badge {
  background: #e8f0fe;
  padding: 6px 18px;
  border-radius: 60px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.85rem;
  display: inline-block;
}
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-icon {
  background: #e8f0fe;
  padding: 12px 30px;
  border-radius: 80px;
  font-size: 2.8rem;
  color: var(--primary);
}

/* ===== PAGE HEADER ===== */
.page-header {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px 40px;
  margin-bottom: 28px;
  box-shadow: var(--shadow);
}
.page-header h1 { font-size: 2rem; color: var(--primary); display: flex; align-items: center; gap: 12px; }
.page-header h1 i { color: var(--accent); }
.page-header p { color: var(--text-muted); font-size: 1.05rem; margin-top: 4px; }

/* ===== SECTION HEADER ===== */
.section-header {
  text-align: center;
  margin-bottom: 32px;
}
.section-header h2 {
  font-size: 2rem;
  color: var(--primary);
}
.section-header h2 i { color: var(--accent); margin-right: 12px; }
.section-header p { color: var(--text-muted); font-size: 1.05rem; }

/* ===== SIMULATION ===== */
.sim-form-container {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  padding: 0;
}
.sim-card {
  flex: 1.3 1 440px;
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px 36px;
  box-shadow: var(--shadow);
}
.sim-header { display: flex; align-items: center; gap: 12px; margin-bottom: 4px; }
.sim-header h2 { font-size: 1.6rem; color: var(--primary); }
.sim-header i { color: var(--accent); font-size: 1.6rem; }
.sim-sub {
  color: var(--text-muted);
  border-left: 4px solid var(--accent);
  padding-left: 14px;
  margin-bottom: 22px;
  font-size: 0.95rem;
}
.sim-grid { display: flex; flex-wrap: wrap; gap: 24px; }
.sim-sliders { flex: 2 1 280px; }
.sim-summary {
  flex: 1 1 200px;
  background: #f7faff;
  border-radius: 16px;
  padding: 20px 22px;
  border: 1px solid #eaf0f8;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.slider-group { margin-bottom: 20px; }
.slider-group label {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 2px;
  font-size: 0.9rem;
}
.slider-group label i { color: var(--primary); width: 22px; }
.value-indicator {
  background: #e8f0fe;
  padding: 2px 12px;
  border-radius: 40px;
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
}
input[type="range"] {
  width: 100%;
  height: 6px;
  background: #dce4ed;
  border-radius: 10px;
  -webkit-appearance: none;
  appearance: none;
  outline: none;
  margin-top: 6px;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  border: 3px solid white;
  box-shadow: 0 2px 10px rgba(10,37,64,0.25);
  transition: var(--transition);
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.12); background: var(--accent); }
input[type="range"]::-moz-range-thumb {
  width: 20px; height: 20px; background: var(--primary);
  border-radius: 50%; cursor: pointer; border: 3px solid white;
}
.sim-summary p {
  display: flex;
  justify-content: space-between;
  padding: 5px 0;
  border-bottom: 1px dashed #dce4ed;
  font-size: 0.9rem;
}
.sim-summary .total {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  border-top: 2px solid var(--primary);
  border-bottom: none;
  padding-top: 10px;
  margin-top: 4px;
}
.progress-wrapper {
  margin-top: 8px;
  background: #e8edf4;
  border-radius: 60px;
  height: 5px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), #f7c948);
  border-radius: 60px;
  transition: width 0.4s ease;
}

/* ===== FORM CARD ===== */
.form-card {
  flex: 1 1 360px;
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px 36px;
  box-shadow: var(--shadow);
}
.form-card h3 {
  font-size: 1.4rem;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}
.form-card h3 i { color: var(--accent); }
.form-card .sub { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 18px; }
.form-card .form-group { margin-bottom: 14px; display: flex; flex-direction: column; }
.form-card .form-group label {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-dark);
  margin-bottom: 3px;
}
.form-card .form-group label i { margin-right: 6px; color: var(--primary); }
.form-card .form-group input,
.form-card .form-group select {
  padding: 10px 14px;
  border: 1.5px solid #dce4ed;
  border-radius: 12px;
  font-size: 0.95rem;
  background: #fafcff;
  transition: var(--transition);
  font-family: inherit;
}
.form-card .form-group input:focus,
.form-card .form-group select:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 4px rgba(10,37,64,0.06);
  background: #fff;
}
.form-row-small { display: flex; gap: 14px; }
.form-row-small .form-group { flex: 1; }
.btn-submit-form {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 13px 24px;
  border-radius: 60px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 6px 20px rgba(245, 166, 35, 0.3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  margin-top: 4px;
}
.btn-submit-form:hover { background: var(--accent-hover); transform: translateY(-2px); }

/* ===== SERVICES ===== */
.services-preview { padding: 20px 0; }
.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}
.preview-item {
  background: var(--card-bg);
  padding: 28px 20px;
  border-radius: 16px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.preview-item:hover { transform: translateY(-4px); }
.preview-item i { font-size: 2.4rem; color: var(--primary); margin-bottom: 10px; }
.preview-item h4 { font-size: 1.1rem; color: var(--primary); }
.preview-item p { color: var(--text-muted); font-size: 0.9rem; }
.preview-link { color: var(--accent); font-weight: 600; margin-top: 8px; display: inline-block; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}
.service-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.service-card:hover { transform: translateY(-6px); box-shadow: 0 20px 50px rgba(10,37,64,0.12); }
.service-image {
  background: linear-gradient(135deg, #e8f0fe 0%, #d4e0f0 100%);
  padding: 30px 20px 20px;
  text-align: center;
  position: relative;
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.service-image i {
  font-size: 4rem;
  color: var(--primary);
  background: rgba(255,255,255,0.7);
  padding: 20px;
  border-radius: 50%;
  box-shadow: 0 4px 20px rgba(10,37,64,0.08);
  transition: var(--transition);
}
.service-card:hover .service-image i { transform: scale(1.05); color: var(--accent); }
.service-image .badge {
  position: absolute;
  top: 14px;
  right: 16px;
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 14px;
  border-radius: 60px;
  text-transform: uppercase;
}
.service-body { padding: 22px 26px 26px; flex: 1; display: flex; flex-direction: column; }
.service-body h4 { font-size: 1.3rem; color: var(--primary); margin-bottom: 2px; }
.service-body .subtitle { color: var(--accent); font-weight: 600; font-size: 0.85rem; margin-bottom: 10px; }
.service-body p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.7; flex: 1; }
.service-body .features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin: 12px 0 16px;
}
.service-body .features span {
  font-size: 0.85rem;
  color: var(--text-dark);
  background: #f0f4f9;
  padding: 3px 14px;
  border-radius: 60px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.service-body .features span i { color: var(--accent); font-size: 0.7rem; }
.btn-service {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 12px 24px;
  border-radius: 60px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
}
.btn-service:hover { background: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,166,35,0.3); }

/* ===== WHY US ===== */
.why-us { padding: 20px 0; }
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}
.why-item {
  background: var(--card-bg);
  padding: 28px 20px;
  border-radius: 16px;
  text-align: center;
  box-shadow: var(--shadow);
}
.why-item i { font-size: 2.4rem; color: var(--accent); margin-bottom: 10px; }
.why-item h4 { font-size: 1.1rem; color: var(--primary); }
.why-item p { color: var(--text-muted); font-size: 0.9rem; }

/* ===== CTA ===== */
.cta-section { padding: 20px 0; }
.cta-box {
  background: var(--primary);
  color: #fff;
  padding: 48px 40px;
  border-radius: var(--radius);
  text-align: center;
}
.cta-box h3 { font-size: 1.8rem; margin-bottom: 8px; }
.cta-box p { opacity: 0.9; font-size: 1.05rem; margin-bottom: 20px; }
.cta-box .btn-primary { box-shadow: 0 6px 20px rgba(245,166,35,0.4); }

/* ===== DEMANDE FORM ===== */
.demande-form { padding: 20px 0; }
.form-card-full {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 40px 48px;
  box-shadow: var(--shadow);
}
.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 4px;
}
.form-group {
  flex: 1 1 200px;
  display: flex;
  flex-direction: column;
}
.form-group label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-dark);
  margin-bottom: 4px;
}
.form-group label i { margin-right: 6px; color: var(--primary); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 1.5px solid #dce4ed;
  border-radius: 14px;
  font-size: 1rem;
  background: #fafcff;
  transition: var(--transition);
  font-family: inherit;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 4px rgba(10,37,64,0.06);
  background: #fff;
}
.form-group textarea { min-height: 80px; resize: vertical; }
.form-full { flex: 1 1 100%; }
.form-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #e8edf4;
}
.form-footer p { color: var(--text-muted); font-size: 0.9rem; }
.form-footer p i { color: var(--accent); margin-right: 6px; }

/* ===== CONTACT ===== */
.contact-section { padding: 20px 0; }
.contact-grid-full {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 40px 48px;
  box-shadow: var(--shadow);
}
.contact-info-full { flex: 1 1 240px; }
.contact-info-full h3 { font-size: 1.1rem; color: var(--primary); margin-bottom: 4px; display: flex; align-items: center; gap: 10px; }
.contact-info-full h3 i { color: var(--accent); }
.contact-info-full p { color: var(--text-muted); margin-bottom: 2px; }
.contact-form-full { flex: 2 1 300px; }
.contact-form-full h3 { font-size: 1.1rem; color: var(--primary); margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.contact-form-full h3 i { color: var(--accent); }

/* ===== FOOTER ===== */
footer {
  background: var(--primary);
  color: rgba(255,255,255,0.8);
  border-radius: var(--radius);
  padding: 28px 0;
  margin-top: 28px;
}
.footer-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { transition: var(--transition); }
.footer-links a:hover { color: var(--accent); }
.social a {
  color: rgba(255,255,255,0.7);
  margin-left: 18px;
  font-size: 1.3rem;
  transition: var(--transition);
}
.social a:hover { color: var(--accent); transform: translateY(-2px); }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    padding: 14px 0 6px;
    gap: 10px;
    background: var(--primary);
    border-radius: 18px;
    margin-top: 6px;
  }
  .nav-links.open { display: flex; }
  nav { flex-wrap: wrap; height: auto; padding: 10px 18px; border-radius: 28px; }
  
  .hero-container { flex-direction: column; text-align: center; }
  .hero-text p { margin: 8px auto; }
  .hero-buttons { justify-content: center; }
  .hero-icon { margin-top: 16px; }
  
  .sim-form-container { flex-direction: column; }
  .sim-card, .form-card { flex: 1 1 100%; }
  .sim-grid { flex-direction: column; }
  .sim-summary { margin-top: 10px; }
  .form-row-small { flex-direction: column; gap: 0; }
  
  .services-grid { grid-template-columns: 1fr; }
  .contact-grid-full { flex-direction: column; }
  .footer-container { flex-direction: column; gap: 16px; text-align: center; }
  .social a { margin: 0 10px; }
}
@media (max-width: 480px) {
  body { padding: 12px; }
  .hero, .page-header, .sim-card, .form-card, .form-card-full, .contact-grid-full { padding: 20px; }
  .hero-text h1 { font-size: 2rem; }
  .service-image i { font-size: 3rem; padding: 14px; }
}