:root {
  --color-marine: #0077b6;
  --color-marine-dark: #0d253f;
  --color-surface: #f0f4f8;
  --color-ink: #0f172a;
  --shadow-soft: 0 14px 40px rgba(13, 37, 63, 0.14);
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: "Cairo", sans-serif;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(0, 119, 182, 0.55);
  outline-offset: 3px;
}

.site-header {
  backdrop-filter: blur(12px);
}

.hero-panel {
  background:
    radial-gradient(circle at 82% 20%, rgba(0, 119, 182, 0.3), transparent 28%),
    linear-gradient(135deg, var(--color-marine-dark), var(--color-marine));
}

.hero-art {
  animation: float-art 5s ease-in-out infinite;
  box-shadow: var(--shadow-soft);
}

.product-card {
  animation: rise-in 0.45s ease both;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-soft);
}

.product-image {
  background: linear-gradient(145deg, #ffffff, #e0f2fe);
}

.category-button {
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.category-button:hover {
  transform: translateY(-1px);
}

.category-button.is-active {
  background: var(--color-marine-dark);
  border-color: var(--color-marine-dark);
  color: white;
}

.cart-drawer {
  visibility: hidden;
  pointer-events: none;
}

.cart-drawer.is-open {
  visibility: visible;
  pointer-events: auto;
}

.cart-backdrop {
  opacity: 0;
  transition: opacity 0.25s ease;
}

.cart-drawer.is-open .cart-backdrop {
  opacity: 1;
}

.cart-panel {
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.cart-drawer.is-open .cart-panel {
  transform: translateX(0);
}

.cart-item + .cart-item {
  border-top: 1px solid #dbeafe;
}

.checkout-modal {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.checkout-modal.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.checkout-panel {
  transform: translateY(14px) scale(0.98);
  transition: transform 0.25s ease;
}

.checkout-modal.is-open .checkout-panel {
  transform: translateY(0) scale(1);
}

.checkout-input {
  display: block;
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 0.5rem;
  background: #fff;
  padding: 0.7rem 0.8rem;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 400;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.checkout-input:focus {
  border-color: var(--color-marine);
  box-shadow: 0 0 0 3px rgba(0, 119, 182, 0.14);
}

@keyframes float-art {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes rise-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}