body {
  background: radial-gradient(circle at top, rgba(14, 165, 233, 0.12), transparent 34%),
    linear-gradient(135deg, #0f172a 0%, #0b1324 42%, #f8fafc 100%);
  color: #0f172a;
}

.bg-img {
  background-image: linear-gradient(135deg, rgba(15, 23, 42, 0.88), rgba(8, 47, 73, 0.76)), url('src/img/bg.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

header,
.shadow-lg,
.shadow-xl,
.shadow-2xl {
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.18);
}

header {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.88));
  backdrop-filter: blur(16px);
}

.dropdown ul {
  background: rgba(15, 23, 42, 0.98);
  box-shadow: 0 20px 44px rgba(15, 23, 42, 0.35);
}

.dropdown ul li a:link,
.dropdown ul li a:visited {
  color: #e2e8f0;
}

.dropdown ul li a:hover {
  background-color: #0891b2;
  color: #fff;
}

.text-blue-500,
.hover\:text-blue-500:hover,
.focus\:text-blue-500:focus,
.dark\:text-blue-500 {
  color: #0891b2 !important;
}

.border-blue-500,
.hover\:border-blue-500:hover,
.focus\:border-blue-500:focus {
  border-color: #0891b2 !important;
}

.bg-blue-500,
.hover\:bg-blue-500:hover,
.bg-blue-600,
.hover\:bg-blue-600:hover,
.bg-blue-700,
.hover\:bg-blue-700:hover {
  background-color: #0f172a !important;
}

.bg-green-500 {
  background: linear-gradient(135deg, #10b981 0%, #0f766e 100%) !important;
}

.bg-yellow-400 {
  background: linear-gradient(135deg, #f59e0b 0%, #ea580c 100%) !important;
}

.to-blue-100 {
  --tw-gradient-to: rgb(207 250 254 / 1) var(--tw-gradient-to-position) !important;
}

.from-blue-100 {
  --tw-gradient-from: rgb(207 250 254 / 1) var(--tw-gradient-from-position) !important;
  --tw-gradient-to: rgb(207 250 254 / 0) var(--tw-gradient-to-position) !important;
}

.focus\:ring-blue-500:focus,
.focus\:ring-offset-blue-200:focus {
  --tw-ring-color: rgba(8, 145, 178, 0.45) !important;
}

.bg-white/90,
.backdrop-blur {
  backdrop-filter: blur(18px);
}

.container .bg-white {
  border: 1px solid rgba(148, 163, 184, 0.16);
}

@media (prefers-reduced-motion: no-preference) {
  .bg-white,
  .rounded-2xl,
  .rounded-lg,
  .shadow-lg,
  .shadow-xl,
  .shadow-2xl {
    transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
  }

  .bg-white:hover,
  .rounded-2xl:hover,
  .rounded-lg:hover {
    transform: translateY(-1px);
  }
}