*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #f4f6fb;
  --white: #ffffff;
  --border: #e2e8f0;
  --accent: #4f46e5;
  --accent-light: #eef2ff;
  --danger: #ef4444;
  --danger-light: #fef2f2;
  --text: #1e293b;
  --muted: #94a3b8;
  --green: #22c55e;
  --radius: 14px;
  --shadow: 0 2px 16px rgba(0, 0, 0, 0.07);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', sans-serif;
  min-height: 100vh;
}

.navbar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
}

.navbar .left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar .bag_logo {
  background: var(--accent);
  color: white;
  width: 36px;
  height: 36px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.navbar h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.back-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-light);
  color: var(--accent);
  border: none;
  padding: 9px 16px;
  border-radius: 9px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s;
}

.back-btn:hover {
  background: #e0e7ff;
}

.page-wrapper {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 20px;
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 24px;
  align-items: start;
}

@media (max-width: 768px) {
  .page-wrapper {
    grid-template-columns: 1fr;
  }
}

.section-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}

.section-title span {
  background: var(--accent);
  color: white;
  font-size: 0.75rem;
  padding: 2px 9px;
  border-radius: 99px;
  font-weight: 600;
}

.cart-panel {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.cart-panel-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-label {
  font-weight: 600;
  font-size: 0.95rem;
}

.clear-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 6px 13px;
  border-radius: 7px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.clear-btn:hover {
  border-color: var(--danger);
  color: var(--danger);
  background: var(--danger-light);
}

#cart-items-list {
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cart-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fafafa;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  animation: fadeIn 0.2s ease;
  transition: box-shadow 0.2s;
}

.cart-item:hover {
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.07);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeOut {
  from { opacity: 1; transform: translateX(0);   max-height: 120px; }
  to   { opacity: 0; transform: translateX(60px); max-height: 0; padding: 0; margin: 0; border: none; }
}

.cart-item.removing {
  animation: fadeOut 0.28s ease forwards;
  overflow: hidden;
}

.cart-item img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  border-radius: 8px;
  background: white;
  border: 1px solid var(--border);
  padding: 4px;
  flex-shrink: 0;
}

.item-details {
  flex: 1;
  min-width: 0;
}

.item-category {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 3px;
}

.item-title {
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 5px;
  max-width: 260px;
}

.item-price {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent);
}

.qty-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.qty-btn {
  width: 30px;
  height: 30px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: white;
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.qty-btn:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.qty-btn:active {
  transform: scale(0.9);
}

.qty-num {
  font-weight: 700;
  font-size: 0.95rem;
  min-width: 20px;
  text-align: center;
}

.remove-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  width: 30px;
  height: 30px;
  border-radius: 7px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}

.remove-btn:hover {
  background: var(--danger-light);
  border-color: var(--danger);
  color: var(--danger);
}

.empty-cart {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
  gap: 12px;
}

.empty-cart i {
  font-size: 3rem;
  color: var(--muted);
}

.empty-cart h3 {
  font-size: 1.1rem;
  color: var(--text);
}

.empty-cart p {
  color: var(--muted);
  font-size: 0.9rem;
}

.shop-btn {
  margin-top: 8px;
  background: var(--accent);
  color: white;
  border: none;
  padding: 11px 22px;
  border-radius: 9px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: opacity 0.2s;
}

.shop-btn:hover {
  opacity: 0.88;
}

.summary-panel {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 22px;
  position: sticky;
  top: 80px;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: var(--muted);
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.summary-row:last-of-type {
  border-bottom: none;
}

.summary-row.total {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  padding-top: 14px;
  margin-top: 4px;
  border-top: 2px solid var(--border);
  border-bottom: none;
}

.summary-row .val {
  font-weight: 600;
  color: var(--text);
}

.summary-row.total .val {
  color: var(--accent);
  font-size: 1.2rem;
}

.summary-row .discount {
  color: var(--green);
}

.free-tag {
  background: #dcfce7;
  color: #16a34a;
  font-size: 0.75rem;
  padding: 2px 10px;
  border-radius: 99px;
  font-weight: 600;
}

.checkout-btn {
  width: 100%;
  margin-top: 18px;
  padding: 14px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.checkout-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.checkout-btn:active {
  transform: scale(0.98);
}

.checkout-btn:disabled {
  background: var(--muted);
  cursor: not-allowed;
  transform: none;
  opacity: 1;
}

.secure-note {
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: #1e293b;
  color: white;
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  z-index: 999;
  transition: transform 0.3s ease;
  pointer-events: none;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}