/* Base */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: linear-gradient(135deg, #6a11cb, #2575fc);
  color: #fff;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  text-align: center;
}

/* Layout helpers */
.wrap {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}
main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 0;
  text-align: center;
  flex-direction: column;
}

/* Header / Nav */
.site-header {
  backdrop-filter: saturate(180%) blur(6px);
  background: rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid rgba(255,255,255,0.15);
}
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}
.brand {
  font-weight: 700;
  font-size: 1.25rem;
  text-decoration: none;
  color: #fff;
  letter-spacing: .3px;
}
.nav-links {
  display: flex;
  gap: 14px;
  align-items: center;
}
.nav-links a {
  color: #fff;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: background-color .2s, transform .15s, border-color .2s;
}
.nav-links a:hover { background: rgba(255,255,255,0.12); transform: translateY(-1px); }
.nav-links a.active { border-color: rgba(255,255,255,0.35); background: rgba(255,255,255,0.08); }

/* Buttons */
.button, button {
  display: inline-block;
  padding: 12px 20px;
  font-size: 1rem;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  background: #fff;
  color: #2575fc;
  transition: transform .15s, background-color .3s, color .3s, box-shadow .2s;
  text-decoration: none;
}
.button:hover, button:hover { background: #eaeaea; transform: translateY(-1px); }
.button.primary { background: #fff; color: #2575fc; }

/* Links group under content */
.links { margin-top: 18px; }
.links a { margin: 0 8px; color: #fff; text-decoration: underline; }

/* Card (contact) */
.card {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 16px;
  padding: 28px;
  max-width: 640px;
  width: 100%;
  text-align: left;
}
.card h1, .card p { text-align: center; }

/* Footer */
footer {
  padding: 14px 0 22px;
  font-size: .95rem;
  background: rgba(0,0,0,0.25);
  border-top: 1px solid rgba(255,255,255,0.15);
}
footer a { color: #fff; text-decoration: underline; }

/* Accessibility helper */
.sr-only {
  position: absolute !important;
  height: 1px; width: 1px;
  overflow: hidden; clip: rect(1px, 1px, 1px, 1px);
  white-space: nowrap; border: 0; padding: 0; margin: -1px;
}