/* Base tokens + primitives (shared by site & admin) */
:root {
  --bg: #0b1020;
  --surface: rgba(255,255,255,0.06);
  --surface2: rgba(255,255,255,0.10);
  --text: #e8ecff;
  --muted: rgba(232,236,255,0.75);
  --border: rgba(255,255,255,0.14);
  --accent: #7c5cff;
  --accent2: #00d4ff;
  --danger: #ff4d4f;
  --ok: #2ecc71;
  --shadow: 0 20px 70px rgba(0,0,0,0.35);
  --radius: 16px;
  --btn-ok-bg: linear-gradient(135deg, var(--accent), var(--accent2));
  --btn-ok-text: #fff;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: "Microsoft JhengHei", system-ui, -apple-system, Segoe UI, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.container { max-width: 1920px; margin: 0 auto; padding: 0 18px; }
.row { display: flex; gap: 10px; flex-wrap: wrap; }

.panel {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 12px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: border-color .12s ease, background .12s ease, transform .12s ease;
}
.btn:hover { border-color: rgba(0,212,255,0.55); background: rgba(255,255,255,0.07); transform: translateY(-1px); }
.btn-danger { border-color: rgba(255,77,79,0.55); }
.btn-danger:hover { border-color: rgba(255,77,79,0.85); }

/* 結算/主 CTA：用 .btn.btn-ok 提高特異性，避免 theme 的 .btn 覆蓋。主題只覆寫 :root --btn-ok-bg / --btn-ok-text */
.btn.btn-ok,
.gwa-modal .btn.btn-ok {
  background: var(--btn-ok-bg);
  color: var(--btn-ok-text);
  border: none;
}
.btn.btn-ok:hover,
.gwa-modal .btn.btn-ok:hover {
  color: var(--btn-ok-text);
  filter: brightness(1.08);
}

/* 浮動加入購物車底欄：版面+配色，theme 不定義此 class 故不會覆蓋 */
.product-add-to-cart-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 900;
  display: none;
  justify-content: center;
  align-items: center;
  padding: 14px 20px;
  padding-bottom: max(14px, env(safe-area-inset-bottom));
  background: transparent;
  pointer-events: none;
}
.product-add-to-cart-bar.is-visible {
  display: flex;
  pointer-events: auto;
}
.product-add-to-cart-bar .product-add-to-cart-btn {
  pointer-events: auto;
  cursor: pointer;
}
body.product-page-bar-visible main { padding-bottom: 88px; }
.product-add-to-cart-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 260px;
  padding: 14px 28px;
  border: none;
  border-radius: 14px;
  font-size: 16px;
  font-weight: 600;
  box-shadow: 0 4px 16px var(--accent-shadow, rgba(124,92,255,0.35));
  transition: transform 0.2s ease, filter 0.2s ease;
  text-decoration: none;
  background: var(--btn-ok-bg);
  color: var(--btn-ok-text);
}
.product-add-to-cart-btn:hover {
  color: var(--btn-ok-text);
  transform: translateY(-1px);
  filter: brightness(1.06);
}
.product-add-to-cart-icon { font-size: 1.2em; }
.product-add-to-cart-price { margin-left: 4px; opacity: 0.95; }
.product-add-to-cart-btn--added {
  background: var(--ok);
  color: #fff;
}
.product-add-to-cart-btn--added:hover { color: #fff; filter: brightness(1.08); }

.field { margin-bottom: 12px; }
.field label { display:block; margin-bottom: 6px; color: var(--muted); font-size: 13px; }
.field input, .field select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.18);
  color: var(--text);
}
.field small { display:block; margin-top: 6px; color: var(--muted); font-size: 12px; }

.msg {
  margin: 12px 0 0;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--muted);
}
.msg.err { border-color: rgba(255,77,79,0.55); color: #ffd1d1; }
.msg.ok  { border-color: rgba(46,204,113,0.55); color: #d6ffe7; }