:root {
    --primary: #0b5c8a;
    --primary-dark: #084563;
    --danger: #b3261e;
    --warn: #9a6700;
    --success: #1a7f37;
    --bg: #f5f7f9;
    --panel-bg: #ffffff;
    --border: #d9e0e5;
    --text: #1c2530;
    --muted: #5c6b78;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.5; }
a { color: var(--primary); }
h1, h2, h3 { color: var(--primary-dark); }
.muted { color: var(--muted); }
.small { font-size: 0.85em; }
.mono { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }

/* ---- Public ---- */
.public-topbar { background: var(--primary-dark); color: #fff; padding: 1rem 2rem; display: flex; align-items: baseline; gap: 1rem; }
.public-topbar .brand { color: #fff; font-weight: 700; font-size: 1.2rem; text-decoration: none; }
.public-topbar .tagline { color: #cfe3ee; font-size: 0.9rem; }
.notice-strip { background: #eaf3f8; color: var(--primary-dark); padding: 0.6rem 2rem; font-size: 0.85rem; border-bottom: 1px solid var(--border); }
.public-content { max-width: 900px; margin: 0 auto; padding: 2rem; }
.public-footer { max-width: 900px; margin: 0 auto; padding: 2rem; color: var(--muted); font-size: 0.85rem; border-top: 1px solid var(--border); }
.footer-links a { margin-right: 1.5rem; }
.eifu-symbol { height: 1.2em; vertical-align: middle; }
.search-form { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; }
.search-form input { flex: 1; padding: 0.6rem; border: 1px solid var(--border); border-radius: 4px; }
.product-list { list-style: none; padding: 0; }
.product-list li { padding: 0.9rem; background: var(--panel-bg); border: 1px solid var(--border); border-radius: 6px; margin-bottom: 0.6rem; }
.product-list a { text-decoration: none; display: flex; flex-direction: column; gap: 0.2rem; }
.product-list strong { color: var(--text); }

/* ---- Admin ---- */
body.admin { background: var(--bg); }
.admin-topbar { background: var(--primary-dark); color: #fff; padding: 0.8rem 1.5rem; display: flex; align-items: center; gap: 2rem; }
.admin-topbar .brand a { color: #fff; text-decoration: none; font-weight: 700; }
.admin-topbar nav { display: flex; gap: 1.2rem; flex: 1; }
.admin-topbar nav a { color: #cfe3ee; text-decoration: none; font-size: 0.92rem; }
.admin-topbar nav a:hover { color: #fff; }
.admin-topbar .account { color: #cfe3ee; font-size: 0.85rem; display: flex; gap: 1rem; align-items: center; }
.admin-topbar .account a { color: #fff; }
.admin-content { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }
.admin-footer { max-width: 1100px; margin: 0 auto; padding: 1rem 1.5rem; }

/* ---- Shared components ---- */
.panel { background: var(--panel-bg); border: 1px solid var(--border); border-radius: 8px; padding: 1.2rem 1.5rem; margin-bottom: 1.5rem; }
.alert { padding: 0.7rem 1rem; border-radius: 6px; margin-bottom: 1rem; }
.alert-success { background: #e6f4ea; color: var(--success); border: 1px solid #b7dfc2; }
.alert-error { background: #fbe9e7; color: var(--danger); border: 1px solid #f2c1bc; }
.alert-info { background: #eaf3f8; color: var(--primary-dark); border: 1px solid #cfe3ee; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-grid label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.9rem; font-weight: 600; }
.form-grid label.full-width { grid-column: 1 / -1; }
.form-grid label.checkbox { flex-direction: row; align-items: center; font-weight: 400; gap: 0.5rem; }
.form-grid input, .form-grid select, .form-grid textarea,
.inline-form input, .inline-form select { padding: 0.5rem; border: 1px solid var(--border); border-radius: 4px; font-size: 0.95rem; }
.inline-form { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; margin-top: 0.6rem; }

button, .btn-primary { background: var(--primary); color: #fff; border: none; padding: 0.55rem 1.1rem; border-radius: 5px; cursor: pointer; font-size: 0.9rem; text-decoration: none; display: inline-block; }
button:hover, .btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: var(--danger); }
.btn-link-danger { background: none; border: none; color: var(--danger); text-decoration: underline; cursor: pointer; padding: 0; font-size: 0.85rem; }

table.data-table { width: 100%; border-collapse: collapse; margin: 0.8rem 0; }
table.data-table th, table.data-table td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
table.data-table th { color: var(--muted); font-weight: 600; }
table.kv-table th { text-align: left; color: var(--muted); padding: 0.35rem 1rem 0.35rem 0; vertical-align: top; }
table.kv-table td { padding: 0.35rem 0; }

.badge { display: inline-block; padding: 0.15rem 0.5rem; border-radius: 20px; font-size: 0.75rem; background: #e0e7ec; }
.status-published { background: #d9f0df; color: var(--success); }
.status-pending_approval { background: #fdedd3; color: var(--warn); }
.status-draft { background: #e0e7ec; }
.status-rejected { background: #fbe0dd; color: var(--danger); }
.status-archived { background: #e5e5e5; color: var(--muted); }
tr.row-danger { background: #fdefee; }
tr.row-warn { background: #fef8ec; }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 1.5rem; }
.stat-card { background: var(--panel-bg); border: 1px solid var(--border); border-radius: 8px; padding: 1rem; display: flex; flex-direction: column; gap: 0.2rem; }
.stat-card .stat-num { font-size: 1.8rem; font-weight: 700; color: var(--primary-dark); }
.stat-card.stat-warn .stat-num { color: var(--warn); }
.stat-card.stat-danger .stat-num { color: var(--danger); }

.tabs { margin: 1rem 0; display: flex; gap: 1rem; border-bottom: 1px solid var(--border); }
.tabs a { padding: 0.5rem 0.2rem; text-decoration: none; color: var(--muted); border-bottom: 2px solid transparent; }
.tabs a.active { color: var(--primary-dark); border-color: var(--primary); font-weight: 600; }

.pagination { display: flex; gap: 1rem; align-items: center; margin-top: 1rem; }

/* ---- Auth page ---- */
body.auth-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.auth-box { background: var(--panel-bg); border: 1px solid var(--border); border-radius: 10px; padding: 2rem; width: 340px; }
.auth-box form { display: flex; flex-direction: column; gap: 0.9rem; margin: 1rem 0; }
.auth-box label { font-size: 0.9rem; font-weight: 600; display: flex; flex-direction: column; gap: 0.3rem; }
.auth-box input { padding: 0.55rem; border: 1px solid var(--border); border-radius: 4px; }

@media (max-width: 700px) {
    .form-grid, .stat-grid { grid-template-columns: 1fr; }
    .admin-topbar { flex-wrap: wrap; }
}