:root {
  --primary: #0d9488;
  --primary-light: #14b8a6;
  --primary-dark: #0f766e;
  --secondary: #0284c7;
  --accent: #16a34a;
  --dark: #0f172a;
  --text: #334155;
  --text-light: #64748b;
  --bg-light: #f0fdfa;
  --bg-white: #ffffff;
  --border: #ccfbf1;
  --shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
  --radius: 12px;
  --container: 1200px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; color: var(--text); line-height: 1.6; background: var(--bg-white); }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

.site-header { background: var(--bg-white); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 1000; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 80px; }
.logo { font-size: 1.5rem; font-weight: 700; color: var(--primary-dark); text-decoration: none; display: flex; align-items: center; gap: 8px; }
.logo span { color: var(--accent); }
.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav a { text-decoration: none; color: var(--text); font-weight: 500; font-size: 0.95rem; transition: color 0.2s; }
.main-nav a:hover { color: var(--primary); }
.nav-cta { background: var(--primary); color: white !important; padding: 10px 24px; border-radius: 6px; font-weight: 600; transition: background 0.2s; }
.nav-cta:hover { background: var(--primary-dark); }
.mobile-menu-btn { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--dark); }

.dropdown { position: relative; }
.dropdown-menu { position: absolute; top: 100%; left: 0; background: white; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); min-width: 300px; padding: 12px 0; opacity: 0; visibility: hidden; transform: translateY(10px); transition: all 0.2s; z-index: 1001; }
.dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu a { display: block; padding: 10px 24px; color: var(--text); text-decoration: none; font-size: 0.9rem; transition: all 0.15s; }
.dropdown-menu a:hover { background: var(--bg-light); color: var(--primary); }

.hero { background: linear-gradient(135deg, var(--bg-light) 0%, #e0f2fe 100%); padding: 100px 0 80px; }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero h1 { font-size: 3rem; line-height: 1.1; color: var(--dark); margin-bottom: 20px; }
.hero h1 span { color: var(--primary); }
.hero p { font-size: 1.15rem; color: var(--text-light); margin-bottom: 32px; }
.hero-graphic { display: flex; justify-content: center; }
.hero-graphic svg { width: 100%; max-width: 450px; height: auto; }

.btn { display: inline-block; padding: 14px 32px; border-radius: 6px; text-decoration: none; font-weight: 600; transition: all 0.2s; border: none; cursor: pointer; font-size: 1rem; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }
.btn-outline { border: 2px solid var(--primary); color: var(--primary); background: transparent; margin-left: 12px; }
.btn-outline:hover { background: var(--primary); color: white; }

.section { padding: 80px 0; }
.section-alt { background: var(--bg-light); }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 60px; }
.section-header h2 { font-size: 2.25rem; color: var(--dark); margin-bottom: 16px; }
.section-header p { color: var(--text-light); font-size: 1.1rem; }

.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.card { background: white; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; transition: all 0.2s; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary-light); }
.card-icon { width: 48px; height: 48px; background: var(--bg-light); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: 1.25rem; margin-bottom: 16px; }
.card h3 { font-size: 1.25rem; margin-bottom: 12px; color: var(--dark); }
.card p { color: var(--text-light); font-size: 0.95rem; }

.features-list { list-style: none; }
.features-list li { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 16px; font-size: 1rem; }
.features-list li::before { content: "✓"; color: var(--accent); font-weight: 700; flex-shrink: 0; }

.bar-chart { display: flex; align-items: flex-end; gap: 24px; height: 250px; padding-top: 40px; max-width: 600px; margin: 0 auto 40px; }
.bar-item { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.bar-fill { width: 100%; background: linear-gradient(to top, var(--primary), var(--primary-light)); border-radius: 8px 8px 0 0; transition: height 1s ease; }
.bar-label { font-weight: 700; color: var(--dark); font-size: 1.25rem; }
.bar-year { color: var(--text-light); font-size: 0.9rem; }

.accordion-item { border-bottom: 1px solid var(--border); }
.accordion-header { display: flex; justify-content: space-between; align-items: center; padding: 24px 0; cursor: pointer; font-weight: 600; font-size: 1.1rem; color: var(--dark); background: none; border: none; width: 100%; text-align: left; }
.accordion-header:hover { color: var(--primary); }
.accordion-icon { transition: transform 0.2s; }
.accordion-item.active .accordion-icon { transform: rotate(180deg); }
.accordion-body { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.accordion-item.active .accordion-body { max-height: 600px; }
.accordion-content { padding-bottom: 24px; color: var(--text-light); line-height: 1.7; }

.modal-overlay { position: fixed; inset: 0; background: rgba(15,23,42,0.6); display: flex; align-items: center; justify-content: center; z-index: 2000; opacity: 0; visibility: hidden; transition: all 0.3s; padding: 24px; }
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal { background: white; border-radius: var(--radius); max-width: 800px; width: 100%; max-height: 90vh; overflow-y: auto; box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25); }
.modal-header { display: flex; justify-content: space-between; align-items: center; padding: 24px 32px; border-bottom: 1px solid var(--border); }
.modal-header h3 { font-size: 1.25rem; color: var(--dark); }
.modal-close { background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--text-light); }
.modal-body { padding: 32px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 500; font-size: 0.9rem; }
.form-group label .required { color: #ef4444; margin-left: 2px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 16px; border: 1px solid #cbd5e1; border-radius: 8px; font-family: inherit; font-size: 0.95rem; transition: border-color 0.2s; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(13,148,136,0.1); }
.checkbox-group { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 10px; }
.checkbox-group input { width: auto; margin-top: 4px; }
.checkbox-group label { margin-bottom: 0; font-weight: 400; font-size: 0.9rem; }

.site-footer { background: var(--dark); color: #94a3b8; padding: 80px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 60px; }
.footer-brand .logo { color: white; margin-bottom: 16px; }
.footer-brand p { font-size: 0.95rem; line-height: 1.7; }
.footer-col h4 { color: white; margin-bottom: 20px; font-size: 1rem; }
.footer-col a { display: block; color: #94a3b8; text-decoration: none; margin-bottom: 12px; font-size: 0.9rem; transition: color 0.2s; }
.footer-col a:hover { color: var(--primary-light); }
.footer-bottom { border-top: 1px solid #1e293b; padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; flex-wrap: wrap; gap: 12px; }
.footer-bottom a { color: #94a3b8; text-decoration: none; margin-left: 20px; }

.mobile-nav { position: fixed; inset: 0; background: white; z-index: 1500; padding: 100px 24px 24px; transform: translateX(100%); transition: transform 0.3s; }
.mobile-nav.active { transform: translateX(0); }
.mobile-nav a { display: block; padding: 16px 0; border-bottom: 1px solid var(--border); text-decoration: none; color: var(--dark); font-size: 1.1rem; font-weight: 500; }

.text-center { text-align: center; }
.alert { padding: 24px; border-radius: var(--radius); background: var(--bg-light); border: 1px solid var(--border); text-align: center; }
.alert-success { background: #f0fdf4; border-color: #bbf7d0; color: #166534; }

@media (max-width: 768px) {
  .main-nav { display: none; }
  .mobile-menu-btn { display: block; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero h1 { font-size: 2rem; }
  .hero-graphic { margin-top: 40px; }
  .hero-graphic svg { max-width: 320px; }
  .btn-outline { margin-left: 0; margin-top: 12px; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .bar-chart { height: 200px; }
  .modal { max-width: 100%; }
}

@media (max-width: 480px) {
  .hero { padding: 60px 0 40px; }
  .hero h1 { font-size: 1.75rem; }
  .section { padding: 50px 0; }
  .cards-grid { grid-template-columns: 1fr; }
  .hero-graphic svg { max-width: 280px; }
}