/* ============================================================
   cart.css — Engerware Cart UI v3
   include ไฟล์นี้หลัง style.css ทุกหน้า
   <link rel="stylesheet" href="/cart.css">
   ============================================================ */

/* ── Overlay ─────────────────────────────────────────────── */
.cart-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.55);
  z-index: 1100;
  opacity: 0; pointer-events: none;
  transition: opacity .25s ease;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.cart-overlay.open { opacity: 1; pointer-events: all; }

/* ── Popup ────────────────────────────────────────────────── */
.cart-popup {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -46%) scale(.95);
  width: min(460px, calc(100vw - 24px));
  max-height: min(680px, calc(100dvh - 56px));
  background: var(--bg-el);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow:
    0 40px 120px rgba(0,0,0,.6),
    0 0 0 1px rgba(255,255,255,.04);
  z-index: 1200;
  display: flex; flex-direction: column;
  opacity: 0; pointer-events: none;
  transition:
    transform .32s cubic-bezier(.34,1.56,.64,1),
    opacity .22s ease;
  overflow: hidden;
}
[data-theme="dark"] .cart-popup {
  background: #0d0d1a;
  border-color: rgba(100,60,200,.22);
  box-shadow:
    0 40px 120px rgba(0,0,20,.92),
    0 0 0 1px rgba(100,60,200,.1);
}
.cart-popup.open {
  opacity: 1; pointer-events: all;
  transform: translate(-50%,-50%) scale(1);
}

/* ── Header ───────────────────────────────────────────────── */
.cart-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px 15px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.cart-title {
  display: flex; align-items: center; gap: 9px;
  font-size: 15px; font-weight: 700; color: var(--text);
  letter-spacing: -.015em;
}
.cart-title svg { color: var(--blue); flex-shrink: 0; }
.cart-badge-count {
  background: rgba(41,151,255,.12); color: var(--blue);
  font-size: 10px; font-weight: 800;
  padding: 2px 8px; border-radius: 99px;
  letter-spacing: .01em;
}

/* Close button — แก้ class mismatch (ใช้ .cart-close-btn) */
.cart-close-btn {
  width: 32px; height: 32px;
  background: var(--bg-sec);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--sub);
  transition: background .15s, color .15s, border-color .15s;
  flex-shrink: 0;
}
.cart-close-btn:hover {
  background: rgba(255,59,48,.1);
  border-color: rgba(255,59,48,.25);
  color: var(--red);
}
.cart-close-btn:active { transform: scale(.92); }

/* ── Body / Scroll ────────────────────────────────────────── */
.cart-body {
  flex: 1; overflow-y: auto;
  overscroll-behavior: contain;
}
.cart-body::-webkit-scrollbar { width: 3px; }
.cart-body::-webkit-scrollbar-track { background: transparent; }
.cart-body::-webkit-scrollbar-thumb {
  background: var(--border); border-radius: 2px;
}

/* ── Empty state ──────────────────────────────────────────── */
.cart-empty {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 60px 24px; gap: 14px;
}
.cart-empty > svg { color: var(--sub); }
.cart-empty p {
  font-size: 15px; font-weight: 700; color: var(--text); margin: 0;
}
.cart-empty > span { font-size: 13px; color: var(--sub); }

/* ── Items list ───────────────────────────────────────────── */
.cart-items-list { display: flex; flex-direction: column; }

.cart-item {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 20px;
  border-bottom: 1px solid var(--border);
  transition: background .12s;
}
.cart-item:last-child { border-bottom: none; }
.cart-item:hover { background: rgba(41,151,255,.03); }
[data-theme="dark"] .cart-item:hover { background: rgba(80,60,160,.07); }

.ci-icon {
  width: 40px; height: 40px; min-width: 40px;
  border-radius: 11px;
  background: linear-gradient(
    135deg,
    rgba(41,151,255,.13),
    rgba(88,86,214,.13)
  );
  display: flex; align-items: center; justify-content: center;
  color: var(--blue);
}
.ci-body { flex: 1; min-width: 0; }
.ci-name {
  font-size: 13px; font-weight: 600; color: var(--text);
  margin-bottom: 5px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ci-price-wrap {
  display: flex; align-items: baseline; gap: 3px;
}
.ci-price-label {
  font-size: 11px; color: var(--blue); font-weight: 700;
}
.ci-price-display {
  font-size: 20px; font-weight: 800; color: var(--blue);
  letter-spacing: -.02em; line-height: 1;
}
.ci-unit { font-size: 11px; color: var(--sub); }
.ci-price-na {
  font-size: 12px; color: var(--sub); font-style: italic; opacity: .6;
}

/* Remove button — single click fix via event delegation in JS */
.ci-remove {
  width: 30px; height: 30px; min-width: 30px;
  background: none; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--sub); border-radius: 9px;
  transition: background .15s, color .15s, transform .12s;
  margin-left: 2px;
}
.ci-remove:hover {
  background: rgba(255,59,48,.12); color: var(--red);
}
.ci-remove:active { transform: scale(.85); }

/* ── Footer ───────────────────────────────────────────────── */
.cart-footer {
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--bg-el);
}
[data-theme="dark"] .cart-footer {
  background: rgba(255,255,255,.018);
}

/* Discount section */
.cart-discount-section { padding: 14px 20px 0; }

.cart-code-row {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 6px;
}
.cart-code-input {
  flex: 1;
  background: var(--bg-sec);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 8px 13px;
  font-size: 12px; font-weight: 700; font-family: var(--font);
  color: var(--text);
  outline: none;
  letter-spacing: .06em; text-transform: uppercase;
  transition: border-color .15s, box-shadow .15s;
}
.cart-code-input::placeholder {
  text-transform: none; font-weight: 400; letter-spacing: 0;
}
.cart-code-input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(41,151,255,.12);
}
[data-theme="dark"] .cart-code-input {
  background: rgba(255,255,255,.05);
  border-color: rgba(255,255,255,.1);
}

/* แก้ class mismatch: .cart-code-btn (HTML) ≠ .cart-code-apply-btn (style.css) */
.cart-code-btn {
  background: var(--blue); color: #fff;
  border: none; border-radius: 10px;
  padding: 8px 16px;
  font-size: 12px; font-weight: 700; font-family: var(--font);
  cursor: pointer; white-space: nowrap; flex-shrink: 0;
  transition: opacity .15s, transform .15s, box-shadow .15s;
  box-shadow: 0 2px 8px rgba(41,151,255,.3);
}
.cart-code-btn:hover:not(:disabled) {
  opacity: .88; transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(41,151,255,.4);
}
.cart-code-btn:disabled { opacity: .45; cursor: not-allowed; }

.cart-code-msg {
  font-size: 11px; min-height: 16px;
  padding: 0 2px; margin-bottom: 6px;
  font-weight: 600;
}
.cart-code-msg.ok { color: var(--green); }
.cart-code-msg.err { color: var(--red); }

/* Applied discount tags */
.cart-discount-rows {
  display: flex; flex-direction: column; gap: 5px;
  margin-bottom: 4px;
}
.cart-discount-row {
  display: flex; align-items: center; gap: 8px;
  background: rgba(88,86,214,.07);
  border: 1px solid rgba(88,86,214,.16);
  border-radius: 9px;
  padding: 7px 10px;
}
[data-theme="dark"] .cart-discount-row {
  background: rgba(88,86,214,.11);
  border-color: rgba(88,86,214,.22);
}
.cart-discount-row-left {
  display: flex; align-items: center; gap: 7px;
  flex: 1; min-width: 0;
}
.cart-discount-label {
  font-size: 12px; font-weight: 600; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.cart-discount-pct-badge {
  display: inline-flex; align-items: center;
  background: rgba(88,86,214,.18); color: var(--purple);
  font-size: 10px; font-weight: 800;
  padding: 1px 7px; border-radius: 99px; flex-shrink: 0;
}
.cart-discount-amt {
  font-size: 13px; font-weight: 700; color: var(--red);
  flex-shrink: 0; margin-left: auto;
}
.cart-discount-remove {
  width: 20px; height: 20px;
  border: none; background: none; cursor: pointer;
  color: var(--sub); border-radius: 5px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  transition: color .15s, background .15s;
}
.cart-discount-remove:hover {
  color: var(--red); background: rgba(255,59,48,.1);
}

/* ── Totals — แก้ class mismatch ─────────────────────────── */
/* HTML ใช้ .cart-totals / .cart-row / .cart-row-total
   style.css ใช้ .cart-sum-rows / .cart-sum-row / .cart-sum-total
   → ใช้ทั้งสองชุดที่นี่ */
.cart-totals,
.cart-sum-rows {
  padding: 12px 20px 0;
  display: flex; flex-direction: column; gap: 7px;
}
.cart-row,
.cart-sum-row {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; color: var(--sub);
}
.cart-row-total,
.cart-sum-total {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 18px; font-weight: 800; color: var(--text);
  padding-top: 10px; margin-top: 4px;
  border-top: 1px solid var(--border);
}
.cart-row-total span:last-child,
.cart-sum-total span:last-child {
  color: var(--blue);
}

/* Checkout CTA */
.cart-checkout-btn {
  margin: 14px 20px 18px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 20px;
  background: var(--blue); color: #fff;
  border-radius: 13px;
  font-size: 14px; font-weight: 700;
  text-decoration: none;
  transition: opacity .2s, transform .2s, box-shadow .2s;
  box-shadow: 0 4px 18px rgba(41,151,255,.38);
}
.cart-checkout-btn:hover {
  opacity: .88; transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(41,151,255,.45);
}
.cart-checkout-btn:active { transform: scale(.98); }

/* ── Toast ────────────────────────────────────────────────── */
.cart-toast {
  position: fixed; top: 62px; right: 16px;
  padding: 10px 18px;
  border-radius: 99px;
  font-size: 13px; font-weight: 600;
  box-shadow: 0 8px 28px rgba(0,0,0,.3);
  z-index: 9500;
  transform: translateY(-6px) scale(.94); opacity: 0;
  transition:
    transform .32s cubic-bezier(.34,1.56,.64,1),
    opacity .22s;
  pointer-events: none;
  display: flex; align-items: center; gap: 8px;
  max-width: calc(100vw - 32px);
  white-space: nowrap;
}
.cart-toast.show { transform: translateY(0) scale(1); opacity: 1; }

/* ── Mobile ───────────────────────────────────────────────── */
@media (max-width: 520px) {
  .cart-popup {
    width: calc(100vw - 16px);
    max-height: calc(100dvh - 44px);
    border-radius: 18px;
  }
  .cart-header { padding: 14px 16px 13px; }
  .cart-item { padding: 12px 16px; }
  .cart-discount-section { padding: 12px 16px 0; }
  .cart-totals, .cart-sum-rows { padding: 10px 16px 0; }
  .cart-checkout-btn { margin: 12px 16px 16px; }
  .cart-toast { top: 14px; right: 8px; left: 8px; justify-content: center; }
}