styles.css

/* Modern blue theme using Prompt font */
* {
  box-sizing: border-box;
  font-family: 'Prompt', system-ui, -apple-system, 'Segoe UI', Roboto, 'Noto Sans', 'Helvetica', 'Arial', "Microsoft JhengHei", sans-serif;
}
:root {
  --bg-0: #f5f9ff;
  --bg-1: #e8f1ff;
  --blue-600: #0d6efd;
  /* primary */
  --blue-500: #1e88ff;
  --blue-400: #66a8ff;
  --muted: #6b7280;
  --card-bg: rgba(255, 255, 255, 0.06);
  --glass: rgba(255, 255, 255, 0.06);
}
body {
  background: linear-gradient(180deg, #eaf4ff 0%, #f8fbff 100%);
  color: #07203a;
  min-height: 100vh;
}
.navbar {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.8), rgba(240, 248, 255, 0.6)) !important;
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(13, 110, 253, 0.12);
}
.navbar-brand {
  color: var(--blue-600) !important;
  font-weight: 700;
  font-size: 1.6rem;
}
.nav-link {
  color: rgba(7, 32, 58, 0.85) !important;
  transition: color 0.2s;
}
.nav-link:hover {
  color: var(--blue-500) !important;
}
.hero-carousel {
  height: 62vh;
  position: relative;
  overflow: hidden;
}
.carousel-item img {
  height: 62vh;
  object-fit: cover;
  filter: saturate(1.05) contrast(0.95) brightness(0.9);
}
.carousel-caption {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  border-radius: 12px;
  padding: 28px;
  backdrop-filter: blur(6px);
  color: #042033;
}
.btn-gold {
  background: linear-gradient(90deg, var(--blue-500), var(--blue-400));
  border: none;
  color: white;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 12px;
  transition: transform .18s ease, box-shadow .18s ease;
}
.btn-gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(30, 136, 255, 0.18);
}
.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(245, 250, 255, 0.98));
  border: 1px solid rgba(13, 110, 253, 0.08);
  border-radius: 14px;
  transition: transform .18s ease, box-shadow .18s ease;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(14, 60, 105, 0.08);
}
.card-img-top {
  height: 240px;
  object-fit: cover;
  border-radius: 14px 14px 0 0;
}
.price {
  color: var(--blue-600);
  font-size: 1.25rem;
  font-weight: 700;
}
.original-price {
  color: var(--muted);
  text-decoration: line-through;
  font-size: 0.95rem;
}
.cart-count {
  background: var(--blue-400);
  color: white;
  border-radius: 50%;
  padding: 3px 7px;
  font-size: 0.8rem;
  font-weight: 700;
}
.modal-content {
  background: #ffffff;
  border: 1px solid rgba(13, 110, 253, 0.06);
  border-radius: 12px;
}
.form-control,
.form-select {
  background: #fff;
  border: 1px solid rgba(7, 32, 58, 0.06);
  color: #07203a;
  border-radius: 8px;
}
.form-control:focus,
.form-select:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 6px 20px rgba(30, 136, 255, 0.08);
}
.form-control::placeholder {
  color: #94a3b8;
}
.section-title {
  color: var(--blue-600);
  font-weight: 700;
  position: relative;
  padding-bottom: 12px;
  margin-bottom: 26px;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 56px;
  height: 4px;
  background: linear-gradient(90deg, var(--blue-500), var(--blue-400));
  border-radius: 4px;
}
.footer {
  background: linear-gradient(90deg, #fbfdff, #f5f9ff);
  border-top: 1px solid rgba(13, 110, 253, 0.06);
  margin-top: 40px;
}
.social-icon {
  width: 40px;
  height: 40px;
  background: var(--blue-500);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: transform .18s ease, background .18s ease;
  margin: 0 5px;
}
.social-icon:hover {
  transform: translateY(-3px);
  background: var(--blue-400);
}
.loading {
  display: none;
  text-align: center;
  padding: 20px;
}
.spinner {
  border: 3px solid rgba(30, 136, 255, 0.12);
  border-radius: 50%;
  border-top: 3px solid var(--blue-600);
  width: 30px;
  height: 30px;
  animation: spin 1s linear infinite;
  margin: 0 auto 10px;
}
@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
.success-animation {
  animation: success 0.45s ease-in-out;
}
@keyframes success {
  0% {
    transform: scale(1)
  }
  50% {
    transform: scale(1.04)
  }
  100% {
    transform: scale(1)
  }
}
/* Ensure headings inside semantic containers have explicit font sizes
   to avoid future browser default changes affecting layout. */
section h1,
article h1,
aside h1,
nav h1 {
  /* responsive, clamped size for stability */
  font-size: clamp(1.25rem, 1.6rem + 1vw, 2.25rem);
  line-height: 1.15;
  margin: 0 0 0.5rem;
  font-weight: 700;
}
/* small responsive tweaks */
@media (max-width: 767px) {
  .hero-carousel {
    height: 42vh;
  }
  .carousel-caption {
    padding: 18px;
  }
  .card-img-top {
    height: 200px;
  }
}