/* NICOPY WORLD design tokens — 白金黑橙 × 文創科技 */
:root {
  --paper: #FAFAF7;
  --ink: #0A0A0A;
  --gold: #D4AF37;
  --gold-light: #F5D061;
  --accent: #E8590C;
  --serif: "Noto Serif TC", serif;
  --sans: "Noto Sans TC", sans-serif;
  --mono: "JetBrains Mono", monospace;
}
body { background: var(--paper); color: var(--ink); font-family: var(--sans); }
.font-serif-tc { font-family: var(--serif); }
.font-mono-code { font-family: var(--mono); }
.gold-gradient-text {
  background: linear-gradient(105deg, var(--gold), var(--gold-light));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.gold-hairline { border-color: var(--gold); }
.btn-accent {
  background: var(--accent); color: #fff; border-radius: 9999px;
  padding: .75rem 2rem; transition: box-shadow .3s, transform .2s;
  display: inline-block;
}
.btn-accent:hover { box-shadow: 0 0 24px rgba(232, 89, 12, .45); transform: translateY(-1px); }
.glass-card {
  background: rgba(255, 255, 255, .65); backdrop-filter: blur(12px);
  border: 1px solid rgba(212, 175, 55, .35); border-radius: 1rem;
}
.glass-card:hover { box-shadow: 0 0 24px rgba(212, 175, 55, .35); }
.ink-section { background: var(--ink); color: var(--paper); }
/* 東方紋樣：窗櫺格細線背景 */
.lattice-bg {
  background-image:
    linear-gradient(rgba(212,175,55,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212,175,55,.08) 1px, transparent 1px);
  background-size: 48px 48px;
}
.fade-in-up { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.fade-in-up.visible { opacity: 1; transform: none; }
.cart-nav-button {
  width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center;
  position: relative; color: #f5f5f5; border: 1px solid rgba(212,175,55,.45); border-radius: 50%;
  transition: color .2s, border-color .2s, background .2s;
}
.cart-nav-button:hover { color: var(--gold-light); border-color: var(--gold-light); background: rgba(212,175,55,.08); }
.cart-count {
  position: absolute; top: -5px; right: -5px; min-width: 19px; height: 19px; padding: 0 5px;
  display: inline-flex; align-items: center; justify-content: center; border-radius: 999px;
  background: var(--accent); color: #fff; font: 700 11px/1 var(--sans); border: 2px solid var(--ink);
}
.cart-count.hidden { display: none; }
.cart-toast {
  position: fixed; z-index: 100; left: 50%; bottom: 28px; transform: translate(-50%, 16px);
  max-width: calc(100vw - 32px); padding: 11px 18px; border-radius: 6px;
  background: var(--ink); color: #fff; border: 1px solid var(--gold); box-shadow: 0 14px 40px rgba(0,0,0,.22);
  opacity: 0; transition: opacity .2s, transform .2s; font-size: 14px;
}
.cart-toast-error { border-color: var(--accent); }
.cart-toast-visible { opacity: 1; transform: translate(-50%, 0); }
@media (prefers-reduced-motion: reduce) { .fade-in-up { transition: none; opacity: 1; transform: none; } }