:root {
  --primary: #c62828;
  --primary-dark: #8e0000;
  --accent: #ffb300;
  --bg: #fdf6f0;
  --card-bg: #ffffff;
  --text: #333;
  --border: #e0d7cf;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* ---------- ヘッダ ---------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 24px;
  background: var(--primary);
  color: #fff;
}
.brand {
  font-size: 1.3rem;
  font-weight: bold;
  color: #fff;
  text-decoration: none;
}
.top-nav { display: flex; align-items: center; gap: 16px; }
.top-nav a { color: #fff; text-decoration: none; font-size: .95rem; }
.top-nav a:hover { text-decoration: underline; }
.top-nav .user { opacity: .9; font-size: .9rem; }
.btn-login, .btn-logout {
  background: var(--accent);
  color: #5a3d00 !important;
  padding: 4px 12px;
  border-radius: 4px;
  font-weight: bold;
}

/* ---------- フラッシュ ---------- */
.flash-area { max-width: 1100px; margin: 12px auto 0; padding: 0 24px; }
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 8px; font-size: .92rem; }
.flash-success { background: #e8f5e9; color: #256029; border: 1px solid #a5d6a7; }
.flash-danger  { background: #fdecea; color: #a1362f; border: 1px solid #f5b5b0; }
.flash-warning { background: #fff8e1; color: #8a6d00; border: 1px solid #ffe082; }

/* ---------- コンテンツ ---------- */
.content { max-width: 1100px; margin: 20px auto; padding: 0 24px; }
.page-title { color: var(--primary-dark); margin-top: 0; }
.desc { color: #777; margin-top: -8px; }
.empty { color: #999; padding: 24px 0; }
.hint { color: #888; font-size: .85rem; }

/* ---------- 商品一覧 ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.product-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(0,0,0,.06);
  transition: transform .15s;
}
.product-card:hover { transform: translateY(-3px); }
.product-card.expired { opacity: .6; }
.thumb-wrap { position: relative; }
.thumb {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
  cursor: zoom-in;
  background: #f0e9e2;
}
.thumb.no-image {
  display: flex; align-items: center; justify-content: center;
  color: #aaa; cursor: default;
}
.badge-expired {
  position: absolute; top: 8px; left: 8px;
  background: #555; color: #fff; font-size: .75rem;
  padding: 2px 8px; border-radius: 4px;
}
.product-body { padding: 12px 14px; }
.product-name { margin: 0 0 6px; font-size: 1.05rem; }
.product-price { margin: 0; color: var(--primary); font-size: 1.25rem; font-weight: bold; }
.product-price .unit { font-size: .85rem; color: #888; font-weight: normal; }
.product-stock { margin: 4px 0; font-size: .9rem; }
.product-period { margin: 4px 0 0; font-size: .82rem; color: #888; }
.product-desc {
  margin: 8px 0 0; font-size: .85rem; color: #555;
  white-space: pre-wrap; border-top: 1px dashed var(--border); padding-top: 6px;
}
.inline-delete { margin-top: 10px; }
.btn-small { padding: 4px 12px; font-size: .82rem; }

/* ---------- ログイン ---------- */
.login-wrap { max-width: 380px; margin: 40px auto; }
.login-form { display: flex; flex-direction: column; gap: 14px; }
.login-form label { display: flex; flex-direction: column; gap: 4px; font-size: .9rem; }
.login-form input {
  padding: 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 1rem;
}

/* ---------- 管理レイアウト (左メニュー / 右コンテンツ) ---------- */
.admin-layout { display: flex; gap: 24px; align-items: flex-start; }
.admin-sidebar {
  flex: 0 0 200px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}
.sidebar-title { font-size: 1rem; margin: 0 0 12px; color: var(--primary-dark); }
.side-nav { display: flex; flex-direction: column; gap: 8px; }
.side-nav a {
  padding: 10px 12px; border-radius: 6px; text-decoration: none;
  color: var(--text); background: #f7f1eb;
}
.side-nav a:hover { background: #f0e6da; }
.side-nav a.active { background: var(--primary); color: #fff; }
.admin-main { flex: 1; min-width: 0; }

/* ---------- フォーム ---------- */
.product-form { background: var(--card-bg); border: 1px solid var(--border);
  border-radius: 10px; padding: 20px; margin-bottom: 16px; }
.field { margin-bottom: 16px; display: flex; flex-direction: column; gap: 6px; }
.field label { font-weight: bold; font-size: .9rem; }
.field input[type=text], .field input[type=number], .field input[type=date],
.field textarea {
  padding: 9px; border: 1px solid var(--border); border-radius: 6px; font-size: 1rem;
  font-family: inherit;
}
.field textarea { resize: vertical; }
.field-row { display: flex; gap: 16px; }
.field-row .field { flex: 1; }
.form-actions { margin-top: 8px; }

.btn-primary {
  background: var(--primary); color: #fff; border: none;
  padding: 10px 20px; border-radius: 6px; font-size: 1rem; cursor: pointer;
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger {
  background: #fff; color: var(--primary); border: 1px solid var(--primary);
  padding: 8px 16px; border-radius: 6px; cursor: pointer; margin-top: 8px;
}
.btn-danger:hover { background: var(--primary); color: #fff; }

/* ---------- 編集 ---------- */
.search-bar { display: flex; gap: 8px; margin-bottom: 20px; }
.search-bar input {
  flex: 1; padding: 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 1rem;
}
.edit-card {
  border: 1px solid var(--border); border-radius: 10px; padding: 16px;
  margin-bottom: 24px; background: #fffdfb;
}
.image-list { display: flex; flex-wrap: wrap; gap: 12px; }
.image-item { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.image-item img {
  width: 90px; height: 90px; object-fit: cover;
  border: 1px solid var(--border); border-radius: 6px;
}
.del-check { font-size: .8rem; color: #a1362f; }

/* ---------- フッタ ---------- */
.site-footer { text-align: center; padding: 24px; color: #aaa; }
.access-counter {
  margin-bottom: 10px; font-size: .9rem; color: #777;
  display: inline-flex; align-items: center; gap: 8px;
}
.counter-digits { display: inline-flex; gap: 2px; }
.counter-digits .digit {
  background: #222; color: #7CFC00; font-family: "Courier New", monospace;
  font-weight: bold; padding: 2px 6px; border-radius: 3px; min-width: 14px;
  text-align: center; box-shadow: inset 0 0 3px rgba(0,0,0,.6);
}

/* ---------- ライトボックス (ポップアップ) ---------- */
.lightbox {
  position: fixed; inset: 0; background: rgba(0,0,0,.8);
  display: none; align-items: center; justify-content: center; z-index: 1000;
}
.lightbox.open { display: flex; }
.lightbox-inner { position: relative; max-width: 90vw; max-height: 90vh; text-align: center; }
.lb-title { color: #fff; margin: 0 0 10px; }
.lb-main { display: flex; align-items: center; gap: 12px; }
.lb-image {
  max-width: 80vw; max-height: 72vh; border-radius: 8px; background: #fff;
}
.lb-nav {
  background: rgba(255,255,255,.85); border: none; font-size: 1.6rem;
  width: 44px; height: 44px; border-radius: 50%; cursor: pointer;
}
.lb-nav:hover { background: #fff; }
.lb-close {
  position: absolute; top: -40px; right: 0; background: none; border: none;
  color: #fff; font-size: 2rem; cursor: pointer; line-height: 1;
}
.lb-counter { color: #fff; margin-top: 10px; font-size: .9rem; }

@media (max-width: 700px) {
  .admin-layout { flex-direction: column; }
  .admin-sidebar { flex: none; width: 100%; }
  .field-row { flex-direction: column; }
}