:root {
  --bg: #ffffff;
  --text: #0f0f10;
  --navy: #102a5c;
  --muted: #4c5565;
  --border: #e7e8eb;
  --card: rgba(255, 255, 255, 0.84);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

#particle-canvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.container {
  width: min(1100px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 4;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  color: var(--navy);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.3px;
}

nav {
  display: flex;
  gap: 1rem;
}

nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
}

nav a.active,
nav a:hover {
  color: var(--navy);
  border-color: var(--navy);
}

main {
  padding: 2rem 0 4rem;
  display: grid;
  gap: 1rem;
}

.card {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--card);
  padding: 1.2rem 1.1rem;
  box-shadow: 0 8px 30px rgba(16, 42, 92, 0.05);
}

h1,
h2,
h3 {
  color: var(--navy);
  line-height: 1.2;
  margin-top: 0;
}

p,
li {
  color: var(--text);
}

.hero p {
  color: var(--muted);
}

.grid.two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.button-row {
  margin-top: 1rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 10px;
  padding: 0.65rem 1rem;
  font-weight: 700;
  border: 1px solid var(--border);
  color: var(--text);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.07);
}

.btn.primary {
  background: var(--navy);
  color: white;
  border-color: var(--navy);
}

.whatsapp-widget {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 5;
  background: #25d366;
  color: #fff;
  text-decoration: none;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.whatsapp-widget .dot {
  width: 8px;
  height: 8px;
  background: white;
  border-radius: 999px;
}

@media (max-width: 800px) {
  .grid.two {
    grid-template-columns: 1fr;
  }

  nav {
    font-size: 0.92rem;
  }
}