:root {
    --navy: #172847;
    --navy-2: #20375f;
    --gold: #c9a227;
    --bg: #f5f7fb;
    --text: #1c2635;
    --muted: #6f7b8f;
    --danger: #b42318;
    --success: #0b7a3b;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", Arial, sans-serif; background: var(--bg); color: var(--text); }
a { color: inherit; text-decoration: none; }
.app { display: flex; min-height: 100vh; }
.sidebar { width: 260px; background: var(--navy); color: #fff; transition: width .25s ease; flex-shrink: 0; }
.sidebar.collapsed { width: 76px; }
.sidebar-head { display: flex; align-items: center; justify-content: space-between; padding: 20px; border-bottom: 1px solid rgba(255,255,255,.12); }
.sidebar nav { display: grid; gap: 6px; padding: 14px; }
.sidebar a { padding: 12px 14px; border-radius: 12px; color: #dfe7f4; white-space: nowrap; overflow: hidden; }
.sidebar a.active, .sidebar a:hover { background: rgba(201,162,39,.18); color: #fff; }
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar { height: 72px; background: #fff; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; box-shadow: 0 8px 28px rgba(23,40,71,.08); }
.brand { display: flex; align-items: center; gap: 14px; font-weight: 700; color: var(--navy); }
.brand img { max-height: 42px; max-width: 150px; object-fit: contain; }
.top-actions { display: flex; align-items: center; gap: 18px; }
.icon-btn, .btn, button { border: 0; border-radius: 10px; cursor: pointer; }
.icon-btn { background: #edf1f7; padding: 8px 11px; }
.btn { display: inline-flex; align-items: center; gap: 8px; background: var(--navy); color: #fff; padding: 10px 14px; font-weight: 600; }
.btn.secondary { background: #e9edf5; color: var(--navy); }
.btn.gold { background: var(--gold); color: #141414; }
.btn.danger { background: var(--danger); }
.btn.success { background: var(--success); }
.content { padding: 26px; flex: 1; }
.footer { background: #fff; color: var(--muted); padding: 10px 24px; border-top: 1px solid #e5eaf2; }
.card { background: #fff; border-radius: 18px; padding: 22px; box-shadow: 0 10px 35px rgba(23,40,71,.08); margin-bottom: 20px; }
.page-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.page-head h1 { margin: 0; color: var(--navy); font-size: 28px; }
.grid { display: grid; gap: 18px; }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
label { display: grid; gap: 7px; color: var(--navy); font-weight: 600; }
input, select, textarea { width: 100%; border: 1px solid #d7deea; border-radius: 12px; padding: 11px 12px; font: inherit; background: #fff; }
textarea { min-height: 110px; resize: vertical; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; min-width: 640px; }
th, td { text-align: left; padding: 12px 13px; border-bottom: 1px solid #edf1f7; vertical-align: top; }
th { color: var(--navy); background: #f8fafc; }
.badge { display: inline-flex; padding: 5px 9px; border-radius: 99px; font-size: 12px; font-weight: 700; background: #e8edf5; color: var(--navy); }
.badge.published, .badge.active { background: #dff7e9; color: var(--success); }
.badge.draft { background: #fff4cc; color: #8a6500; }
.alert { padding: 13px 15px; border-radius: 12px; margin-bottom: 16px; }
.alert.success { background: #e8f8ef; color: var(--success); }
.alert.danger { background: #fee4e2; color: var(--danger); }
.user-menu { display: flex; gap: 10px; align-items: center; color: var(--muted); }
.user-menu span { color: var(--navy); font-weight: 700; }
.muted { color: var(--muted); }
.login-page { min-height: 100vh; display: grid; place-items: center; background: linear-gradient(135deg, var(--navy), var(--navy-2)); padding: 24px; }
.login-card { width: min(440px, 100%); background: #fff; border-radius: 24px; padding: 34px; box-shadow: 0 24px 70px rgba(0,0,0,.25); }
.login-logo { display: block; max-width: 220px; max-height: 90px; margin: 0 auto 24px; object-fit: contain; }
.check-row { display: flex; gap: 18px; flex-wrap: wrap; }
.check-row label { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.check-row input { width: auto; }
.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.tabs a { padding: 10px 14px; border-radius: 999px; background: #e9edf5; color: var(--navy); font-weight: 700; }
.tabs a.active { background: var(--navy); color: #fff; }
.photo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; }
.photo-card { border: 1px solid #e5eaf2; border-radius: 14px; overflow: hidden; background: #fff; }
.photo-card img { width: 100%; height: 150px; object-fit: cover; display: block; }
.photo-card figcaption { padding: 8px 10px; font-size: 12px; color: var(--muted); display: flex; justify-content: space-between; gap: 8px; }
.upload-panel { margin: 16px 0 8px; display: grid; gap: 14px; }
.upload-box { border: 1px dashed #c9d3e3; border-radius: 16px; padding: 14px; background: #f8fafc; cursor: pointer; }
.upload-box strong { color: var(--navy); }
.upload-box small { color: var(--muted); font-weight: 500; }
.upload-box input[type=file] { margin-top: 8px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.stat h3 { margin: 0 0 8px; color: var(--muted); font-size: 14px; }
.stat h1 { margin: 0; color: var(--navy); }
.filter-bar { display: grid; grid-template-columns: 1.2fr 1fr 1fr auto; gap: 12px; align-items: end; }
.dynamic-table input { min-width: 90px; }
.spec-sheet { max-width: 980px; margin: 0 auto; background: #fff; border: 1px solid #d7deea; }
.spec-sheet-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 22px; border-bottom: 3px solid var(--gold); }
.spec-sheet-head img { height: 46px; }
.spec-sheet-head h2 { margin: 0; color: var(--navy); font-size: 20px; }
.spec-meta { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid #d7deea; }
.spec-meta div { padding: 10px 16px; border-right: 1px solid #d7deea; }
.spec-meta div:nth-child(even) { border-right: 0; }
.spec-meta strong { display: block; color: var(--navy); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.spec-block { padding: 14px 16px; border-bottom: 1px solid #edf1f7; }
.spec-block h3 { margin: 0 0 8px; color: var(--navy); font-size: 14px; text-transform: uppercase; letter-spacing: .04em; }
.spec-block p, .spec-block pre { margin: 0; white-space: pre-wrap; font-family: inherit; line-height: 1.5; }
.spec-sheet table { min-width: 0; }
.spec-sheet th, .spec-sheet td { border: 1px solid #d7deea; }
.inline-form { display: flex; gap: 8px; flex-wrap: wrap; align-items: end; }
.inline-form input, .inline-form select { width: auto; min-width: 160px; }
@media (max-width: 900px) {
    .sidebar { position: fixed; inset: 0 auto 0 0; z-index: 30; transform: translateX(-100%); width: 260px; }
    .sidebar.open { transform: translateX(0); }
    .grid.cols-2, .grid.cols-3, .grid.cols-4, .filter-bar, .spec-meta { grid-template-columns: 1fr; }
    .topbar { align-items: flex-start; height: auto; padding: 16px; gap: 12px; flex-direction: column; }
}
@media print {
    .sidebar, .topbar, .footer, .no-print, .actions { display: none !important; }
    .app, .main, .content { display: block; background: #fff; padding: 0; }
    .spec-sheet { box-shadow: none; border: 0; }
}