:root {
    --bg: #f5f6f8;
    --card: #ffffff;
    --border: #e2e4e9;
    --text: #1f2430;
    --muted: #7a8094;
    --accent: #3457d5;
    --ok: #1f9d55;
    --ok-bg: #e8f9ee;
    --diff: #c0392b;
    --diff-bg: #fdecea;
    --warn: #b3760f;
    --warn-bg: #fdf3e0;
    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);
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: var(--card);
    border-bottom: 1px solid var(--border);
}
.topbar h1 { font-size: 18px; margin: 0; }
.topbar-nav { display: flex; gap: 16px; align-items: center; }
.link-muted { color: var(--muted); text-decoration: none; font-size: 14px; }
.link-muted:hover { color: var(--accent); }

main { padding: 24px; max-width: 1200px; margin: 0 auto; }

.sources { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.sources-3 { grid-template-columns: 1fr 1fr 1fr; }
.source-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px;
}
.source-card h2 { margin: 0 0 8px; font-size: 15px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.source-card p { margin: 4px 0; }
.source-card button {
    margin-top: 10px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 8px 14px;
    cursor: pointer;
    font-size: 14px;
}
.source-card button:disabled { opacity: .6; cursor: default; }
.upload-form { display: flex; gap: 8px; align-items: center; margin-top: 10px; flex-wrap: wrap; }
.upload-form input[type=file] { flex: 1; min-width: 180px; }

.muted { color: var(--muted); font-size: 13px; }
.small { font-size: 12px; }

.alert {
    padding: 10px 14px;
    border-radius: 8px;
    background: #eef1f7;
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-error { background: var(--diff-bg); color: var(--diff); }
.alert-ok { background: var(--ok-bg); color: var(--ok); }

.stats { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; align-items: center; }
.stats-secondary { margin-top: -8px; }
.stats-label { font-size: 13px; color: var(--muted); margin-right: 2px; }
.stat-chip {
    padding: 8px 12px;
    border-radius: 20px;
    background: var(--card);
    border: 1px solid var(--border);
    color: var(--text);
    text-decoration: none;
    font-size: 13px;
}
.stat-chip.active { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.stat-ok.active { border-color: var(--ok); color: var(--ok); }
.stat-diff.active { border-color: var(--diff); color: var(--diff); }
.stat-warn.active { border-color: var(--warn); color: var(--warn); }

.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; flex-wrap: wrap; gap: 8px; }
.search-form { display: flex; gap: 8px; }
.search-form input[type=text] {
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    min-width: 240px;
}
.search-form button, .button-secondary {
    padding: 8px 14px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--card);
    cursor: pointer;
    font-size: 14px;
    text-decoration: none;
    color: var(--text);
}
.button-secondary:hover, .search-form button:hover { border-color: var(--accent); color: var(--accent); }

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    font-size: 14px;
}
.data-table th, .data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}
.data-table th {
    background: #fafbfc;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .03em;
    color: var(--muted);
}
.data-table tbody tr:hover { background: #fafbfd; }

.cell-diff { background: var(--diff-bg); }

.badge { padding: 3px 8px; border-radius: 12px; font-size: 12px; white-space: nowrap; }
.badge-ok { background: var(--ok-bg); color: var(--ok); }
.badge-diff { background: var(--diff-bg); color: var(--diff); }
.badge-missing_in_tilda, .badge-missing_in_aqsi { background: var(--warn-bg); color: var(--warn); }
.badge-link-ok { background: var(--ok-bg); color: var(--ok); }
.badge-link-mismatch { background: var(--diff-bg); color: var(--diff); }
.badge-link-missing, .badge-link-inactive { background: var(--warn-bg); color: var(--warn); }

.link-action-btn {
    margin-top: 4px;
    font-size: 12px;
    padding: 3px 8px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--card);
    cursor: pointer;
}
.link-action-btn:hover { border-color: var(--accent); color: var(--accent); }
.link-action-btn:disabled { opacity: .6; cursor: default; }

.pricetags-table .qty-input { width: 56px; padding: 4px 6px; border: 1px solid var(--border); border-radius: 4px; }
.pricetags-table th:first-child, .pricetags-table td:first-child { width: 28px; text-align: center; }

.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}
.auth-form {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px;
    width: 300px;
    text-align: center;
}
.auth-form h1 { font-size: 18px; margin: 0 0 4px; }
.auth-form label { display: block; text-align: left; font-size: 13px; color: var(--muted); margin: 16px 0 6px; }
.auth-form input { width: 100%; padding: 9px 10px; border: 1px solid var(--border); border-radius: 6px; }
.auth-form button {
    margin-top: 16px;
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 6px;
    background: var(--accent);
    color: #fff;
    cursor: pointer;
    font-size: 14px;
}
.auth-form .error { color: var(--diff); font-size: 13px; }

@media (max-width: 700px) {
    .sources, .sources-3 { grid-template-columns: 1fr; }
    .data-table { display: block; overflow-x: auto; }
}