:root {
  --primary: #0f766e;
  --primary-dark: #115e59;
  --primary-light: #ccfbf1;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --border: #e2e8f0;
  --white: #ffffff;
  --accent: #d97706;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--slate-800);
  background-color: var(--slate-50);
  line-height: 1.65;
}

header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--slate-900);
  font-weight: 800;
  font-size: 1.2rem;
}

.brand-badge {
  background: var(--primary);
  color: var(--white);
  font-size: 0.7rem;
  padding: 2px 7px;
  border-radius: 4px;
  text-transform: uppercase;
  font-weight: 700;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 1.25rem;
}

nav a {
  text-decoration: none;
  color: var(--slate-600);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s;
}

nav a:hover, nav a.active {
  color: var(--primary);
  font-weight: 600;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.breadcrumbs {
  font-size: 0.85rem;
  color: var(--slate-600);
  margin-bottom: 1.5rem;
}

.breadcrumbs a {
  color: var(--primary);
  text-decoration: none;
}

.hero {
  background: linear-gradient(135deg, var(--slate-900) 0%, #134e4a 100%);
  color: var(--white);
  padding: 3rem 2rem;
  border-radius: 12px;
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: 2.1rem;
  line-height: 1.25;
  margin-bottom: 0.75rem;
  font-weight: 800;
}

.hero p {
  color: #cbd5e1;
  font-size: 1.05rem;
  max-width: 720px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2rem;
  margin-bottom: 1.5rem;
}

h2 { font-size: 1.45rem; color: var(--slate-900); margin-bottom: 1rem; }
h3 { font-size: 1.15rem; color: var(--slate-800); margin: 1.25rem 0 0.5rem; }
p { margin-bottom: 1rem; color: var(--slate-700); }

.table-wrap {
  overflow-x: auto;
  margin: 1.5rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

th { background: var(--slate-100); color: var(--slate-700); font-weight: 600; }

.callout {
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  padding: 1rem 1.25rem;
  border-radius: 0 8px 8px 0;
  margin: 1.5rem 0;
}

.callout h4 { color: var(--primary-dark); margin-bottom: 4px; }
.callout p { color: var(--primary-dark); margin-bottom: 0; font-size: 0.9rem; }

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}

.faq-item h3 { margin: 0 0 0.4rem; font-size: 1.05rem; }
.faq-item p { margin: 0; font-size: 0.92rem; }

.btn {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  padding: 10px 18px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
}

.btn:hover { background: var(--primary-dark); }

footer {
  background: var(--slate-900);
  color: #94a3b8;
  padding: 3rem 1.25rem;
  font-size: 0.875rem;
  border-top: 1px solid #1e293b;
}

.footer-container {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-container h5 { color: var(--white); margin-bottom: 1rem; font-size: 0.95rem; }
.footer-container ul { list-style: none; }
.footer-container li { margin-bottom: 0.5rem; }
.footer-container a { color: #94a3b8; text-decoration: none; }
.footer-container a:hover { color: var(--white); }

.copyright {
  max-width: 1140px;
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid #1e293b;
  text-align: center;
  font-size: 0.8rem;
}

@media (max-width: 768px) {
  nav ul { display: none; }
  .grid-2 { grid-template-columns: 1fr; }
  .footer-container { grid-template-columns: 1fr; }
}