/* Basic Reset */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: #0f172a; /* slate-900 */
  background: radial-gradient(1200px 600px at 20% 10%, #ffffff 0%, #eef6ff 55%, #e8f0ff 100%);
}

/* Top bar */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
}
.topbar .muted { color: #6b7280; }
.topbar .login-link {
  color: #2563eb;
  text-decoration: none;
  margin-inline-start: 8px;
}
.topbar .login-link:hover { text-decoration: underline; }

/* Center hero */
.hero {
  min-height: calc(100vh - 200px);
  display: grid;
  place-items: center;
}
.title {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 600;
  color: #111827; /* gray-900 */
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 32px 16px 40px;
  color: #334155; /* slate-700 */
}
.site-footer .brand {
  margin-bottom: 6px;
  color: #3b82f6;
  font-weight: 600;
}
.small { font-size: 12px; }
.muted { color: #6b7280; }

/* Decorative squares to the right */
.bg-squares {
  position: fixed;
  inset: 0;
  pointer-events: none;
}
.bg-squares::before,
.bg-squares::after {
  content: "";
  position: absolute;
  right: min(4vw, 48px);
  top: 50%;
  width: clamp(120px, 22vw, 260px);
  height: clamp(120px, 22vw, 260px);
  transform: translateY(-40%) rotate(0.0001deg);
  background:
    linear-gradient(90deg, rgba(59,130,246,0.06) 1px, transparent 1px) 0 0 / 44px 44px,
    linear-gradient(0deg, rgba(59,130,246,0.06) 1px, transparent 1px) 0 0 / 44px 44px;
  border-radius: 8px;
  filter: blur(0.2px);
  opacity: 0.35;
}
.bg-squares::after {
  top: 72%;
  right: min(10vw, 96px);
  width: clamp(80px, 16vw, 180px);
  height: clamp(80px, 16vw, 180px);
  opacity: 0.18;
}

/* Responsive tweaks */
@media (max-width: 480px) {
  .topbar { padding: 12px 14px; }
  .site-footer { padding-bottom: 28px; }
}