/* =========================================================
   Medical Illustration – Cart Page Design
   白基調 + ブルーアクセント / 学術的・クリーンスタイル
   ========================================================= */

:root {
  --fg: #111;
  --bg: #fff;
  --muted: #666;
  --line: #e5e7eb;
  --accent: #0ea5e9;
  --accent-dark: #0284c7;
  --danger: #ef4444;
  --radius: 10px;
  --font-main: system-ui, "BIZ UDPGothic", Meiryo, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-main);
}

/* ---------------------------------------------------------
   Header
--------------------------------------------------------- */
header {
  padding: 16px;
  border-bottom: 1px solid var(--line);
  background: #f9fafb;
}

header h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  color: var(--accent-dark);
}

/* ---------------------------------------------------------
   Layout
--------------------------------------------------------- */
main {
  padding: 24px 16px;
  max-width: 900px;
  margin: 0 auto;
}

/* ---------------------------------------------------------
   Empty message
--------------------------------------------------------- */
#cartEmptyMessage {
  text-align: center;
  padding: 40px 8px;
  font-size: 18px;
  color: var(--muted);
}

/* ---------------------------------------------------------
   Cart table
--------------------------------------------------------- */

.cart-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  background: #fff;
}

.cart-table th {
  background: #f0f9ff;
  color: var(--accent-dark);
  text-align: left;
  padding: 12px;
  font-weight: 600;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}

.cart-table td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}

.cart-table tr:last-child td {
  border-bottom: none;
}

.cart-table img {
  border-radius: 6px;
  border: 1px solid var(--line);
}

/* ---------------------------------------------------------
   Totals section
--------------------------------------------------------- */

.cart-totals {
  padding: 20px;
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 24px;
}

.cart-totals p {
  margin: 6px 0;
  font-size: 16px;
}

.cart-totals strong {
  font-size: 20px;
  color: var(--accent-dark);
}

/* ---------------------------------------------------------
   Buttons
--------------------------------------------------------- */

.cart-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

button {
  cursor: pointer;
  border-radius: var(--radius);
  padding: 10px 18px;
  font-size: 15px;
  border: 1px solid var(--line);
  background: #fff;
  transition: background 0.2s, border-color 0.2s;
}

button:hover {
  background: #f3f4f6;
}

#clearCartBtn {
  color: var(--danger);
  border-color: #fecaca;
}

#clearCartBtn:hover {
  background: #fee2e2;
}

#toInquiryBtn {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

#toInquiryBtn:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

/* ---------------------------------------------------------
   Messages
--------------------------------------------------------- */
.cart-message {
  margin-top: 12px;
  font-size: 15px;
  color: var(--muted);
}

/* ---------------------------------------------------------
   Responsive
--------------------------------------------------------- */
@media (max-width: 700px) {
  .cart-table th, .cart-table td {
    padding: 10px 6px;
    font-size: 14px;
  }

  .cart-totals p {
    font-size: 15px;
  }

  #cartEmptyMessage {
    font-size: 16px;
  }
}

/* ---------------------------------------------------------
   Purchase button
--------------------------------------------------------- */
.btn-purchase {
  display: inline-block;
  padding: 12px 24px;
  background: #0ea5e9;
  color: #fff;
  border-radius: 8px;
  font-size: 16px;
  text-decoration: none;
  margin-left: 10px;
}

.btn-purchase:hover {
  background: #0284c7;
}