:root {
  --color-primary: #111827;
  --color-accent: #ef4444;
  --color-white: #ffffff;
  --color-gray-50: #f8fafc;
  --color-gray-200: #e2e8f0;
  --color-gray-600: #475569;
  --font-title: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --container-width: 1200px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); color: var(--color-primary); background-color: var(--color-white); line-height: 1.6; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-title); font-weight: 700; line-height: 1.2; color: var(--color-primary); }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
.container { width: 100%; max-width: var(--container-width); margin: 0 auto; padding: 0 24px; }
.header { position: sticky; top: 0; left: 0; width: 100%; background-color: var(--color-white); border-bottom: 1px solid var(--color-gray-200); z-index: 1000; }
.header-container { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { font-family: var(--font-title); font-size: 1.25rem; font-weight: 800; color: var(--color-primary); }
.nav-menu { display: flex; gap: 32px; align-items: center; }
.nav-link { font-weight: 500; color: var(--color-gray-600); transition: color 0.2s; padding: 8px 0; position: relative; }
.nav-link:hover { color: var(--color-primary); }
.nav-link.active { color: var(--color-accent); border-bottom: 2px solid var(--color-accent); }
.header-whatsapp { display: inline-flex; align-items: center; gap: 8px; }
.mobile-menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--color-primary); }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 20px; font-family: var(--font-body); font-weight: 600; border-radius: var(--radius-sm); cursor: pointer; transition: all 0.2s; border: none; font-size: 0.95rem; }
.btn-primary { background-color: var(--color-accent); color: var(--color-white); }
.btn-primary:hover { background-color: #dc2626; }
.btn-secondary { background-color: var(--color-white); color: var(--color-primary); border: 1px solid var(--color-gray-200); }
.btn-secondary:hover { background-color: var(--color-gray-50); }
.footer { background-color: var(--color-primary); color: var(--color-white); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.5fr; gap: 48px; padding-bottom: 48px; }
.footer-logo { color: var(--color-white); font-size: 1.25rem; margin-bottom: 16px; }
.footer-text { color: var(--color-gray-200); font-size: 0.95rem; }
.footer-title { color: var(--color-white); font-size: 1.1rem; margin-bottom: 20px; }
.footer-links li, .footer-info li { margin-bottom: 12px; }
.footer-links a { color: var(--color-gray-200); transition: color 0.2s; }
.footer-links a:hover { color: var(--color-accent); }
.footer-info { color: var(--color-gray-200); font-size: 0.95rem; }
.footer-info a { color: var(--color-accent); font-weight: 500; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 24px 0; text-align: center; }
.footer-bottom p { color: var(--color-gray-200); font-size: 0.875rem; }
.floating-whatsapp { position: fixed; bottom: 24px; right: 24px; z-index: 999; background-color: #25d366; color: var(--color-white); width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-md); transition: transform 0.2s; }
.floating-whatsapp:hover { transform: scale(1.05); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.card { background: var(--color-white); border: 1px solid var(--color-gray-200); border-radius: var(--radius-md); padding: 24px; box-shadow: var(--shadow-sm); }
.badge { display: inline-block; padding: 4px 12px; background: var(--color-gray-50); color: var(--color-primary); border-radius: 999px; font-size: 0.8rem; font-weight: 600; border: 1px solid var(--color-gray-200); }
@media (max-width: 768px) {
  .nav-menu { display: none; position: absolute; top: 72px; left: 0; width: 100%; background: var(--color-white); flex-direction: column; padding: 24px; border-bottom: 1px solid var(--color-gray-200); box-shadow: var(--shadow-md); }
  .nav-menu.active { display: flex; }
  .mobile-menu-toggle { display: block; }
  .header-whatsapp { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}