:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --border: #e2e5ea;
  --text: #1c2330;
  --muted: #667085;
  --accent: #2f6fed;
  --accent-text: #ffffff;
  --success: #12805c;
  --success-bg: #e6f4ee;
  --danger: #b42318;
  --danger-bg: #fbeae9;
  --warn: #92400e;
  --warn-bg: #fdf1df;
  --info: #175cd3;
  --info-bg: #e8f0fd;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .10);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f141b;
    --surface: #171e28;
    --border: #2a3341;
    --text: #e6eaf0;
    --muted: #8a94a6;
    --accent: #4d8bff;
    --success: #4cc38a;
    --success-bg: #12291f;
    --danger: #f0716a;
    --danger-bg: #33201e;
    --warn: #e0a457;
    --warn-bg: #2f2515;
    --info: #6ea8fe;
    --info-bg: #16233a;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14.5px;
  line-height: 1.5;
}
code { font-family: ui-monospace, Consolas, monospace; font-size: .92em; background: var(--bg); padding: 1px 5px; border-radius: 4px; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.right { text-align: right; }

/* ---------- header ---------- */
header {
  display: flex; align-items: center; gap: 28px;
  padding: 14px 28px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 26px; color: var(--accent); }
.brand h1 { margin: 0; font-size: 17px; line-height: 1.2; }
.subtitle { font-size: 12px; color: var(--muted); }
.tabs { display: flex; gap: 6px; margin-left: 12px; }
.tab {
  border: none; background: transparent; color: var(--muted);
  font: inherit; font-weight: 600; padding: 8px 16px; cursor: pointer;
  border-radius: 8px;
}
.tab:hover { color: var(--text); background: var(--bg); }
.tab.active { color: var(--accent); background: var(--info-bg); }
.stack-links { margin-left: auto; display: flex; gap: 16px; font-size: 13px; }
.stack-links a { color: var(--muted); text-decoration: none; }
.stack-links a:hover { color: var(--accent); }

/* ---------- auth ---------- */
.user-area { display: flex; align-items: center; gap: 10px; }
.user-chip {
  font-size: 13px; font-weight: 600;
  background: var(--info-bg); color: var(--info);
  border-radius: 999px; padding: 4px 12px;
}
.login-gate {
  position: fixed; inset: 0; background: var(--bg);
  display: flex; align-items: center; justify-content: center; z-index: 100;
}
.login-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 40px 56px; text-align: center;
}
.login-box .logo { font-size: 40px; }
.login-box h2 { margin: 10px 0 6px; }
.login-box p { margin: 0 0 20px; }

/* ---------- layout ---------- */
.tab-panel { display: none; padding: 24px 28px; max-width: 1200px; margin: 0 auto; }
.tab-panel.active { display: block; }
#tab-bi.active { display: flex; flex-direction: column; max-width: none; height: calc(100vh - 61px); padding: 0; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 24px;
  margin-bottom: 24px;
}
.card h2 { margin: 0 0 14px; font-size: 15px; }
.card-head { display: flex; align-items: baseline; gap: 10px; }

/* ---------- upload form ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 20px; }
.form-grid label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; font-weight: 600; color: var(--muted); }
.span-2 { grid-column: span 2; }
input[type="text"], select {
  font: inherit; color: var(--text);
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 11px;
}
input[type="text"]:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.cron-row { display: flex; gap: 8px; }
.cron-row select { flex: 0 0 auto; }
.cron-row input { flex: 1; }
.file-label {
  border: 1.5px dashed var(--border); border-radius: 8px;
  padding: 18px; text-align: center; cursor: pointer; font-weight: 500 !important;
}
.file-label:hover { border-color: var(--accent); }
.file-label input[type="file"] { display: none; }
.form-actions { display: flex; align-items: center; gap: 14px; margin-top: 16px; }
.status-msg { font-size: 13px; }
.status-msg.error { color: var(--danger); }
.status-msg.ok { color: var(--success); }

/* ---------- buttons ---------- */
.btn {
  font: inherit; font-weight: 600; font-size: 13px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  border-radius: 8px; padding: 7px 14px; cursor: pointer; text-decoration: none;
  display: inline-block;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.primary:hover { filter: brightness(1.08); color: var(--accent-text); }
.btn.subtle { border: none; background: transparent; color: var(--muted); }
.btn.subtle:hover { color: var(--text); }
.btn.danger:hover { border-color: var(--danger); color: var(--danger); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.small { padding: 4px 10px; font-size: 12.5px; }

/* ---------- table ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .04em;
  color: var(--muted); font-weight: 600; padding: 8px 10px; border-bottom: 1px solid var(--border);
}
td { padding: 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
.wf-name { font-weight: 600; }
.wf-desc { font-size: 12.5px; color: var(--muted); }
.actions { display: flex; gap: 6px; justify-content: flex-end; flex-wrap: wrap; }

.badge {
  display: inline-block; font-size: 12px; font-weight: 600;
  border-radius: 999px; padding: 2px 10px;
}
.badge.success { color: var(--success); background: var(--success-bg); }
.badge.failed  { color: var(--danger);  background: var(--danger-bg); }
.badge.running, .badge.queued { color: var(--warn); background: var(--warn-bg); }
.badge.none { color: var(--muted); background: var(--bg); }
.badge.manual { color: var(--info); background: var(--info-bg); }

.cron-edit { width: 130px; font-size: 13px; }

/* toggle */
.switch { position: relative; display: inline-block; width: 36px; height: 20px; }
.switch input { display: none; }
.slider {
  position: absolute; inset: 0; background: var(--border); border-radius: 999px;
  transition: .15s; cursor: pointer;
}
.slider::before {
  content: ""; position: absolute; width: 16px; height: 16px; border-radius: 50%;
  background: var(--surface); top: 2px; left: 2px; transition: .15s;
}
.switch input:checked + .slider { background: var(--accent); }
.switch input:checked + .slider::before { transform: translateX(16px); }

/* ---------- data tab ---------- */
.data-toolbar { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 10px; }
.data-toolbar h2 { margin: 0; }
.breadcrumbs { flex: 1; font-size: 13px; color: var(--muted); min-width: 120px; }
.breadcrumbs a { color: var(--accent); text-decoration: none; font-weight: 600; }
.breadcrumbs a:hover { text-decoration: underline; }
.data-actions { display: flex; gap: 8px; align-items: center; }
.data-actions input[type="text"] { width: 170px; font-size: 13px; }
.folder-icon { margin-right: 2px; }
.data-hint { font-size: 12.5px; margin-bottom: 0; }
#data-status.hidden { display: none; }

/* ---------- data products ---------- */
.domain-form { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; flex-wrap: wrap; }
.domain-form input { width: 260px; }
.conn-info { background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 14px; font-size: 13px; }
.conn-info h4 { margin: 12px 0 6px; font-size: 12px; text-transform: uppercase;
  letter-spacing: .04em; color: var(--muted); }
.conn-info h4:first-child { margin-top: 0; }
.conn-row { display: flex; gap: 8px; padding: 3px 0; align-items: center; }
.conn-row .k { color: var(--muted); min-width: 150px; flex: 0 0 auto; }
.conn-row code { user-select: all; }
.conn-actions { display: inline-flex; gap: 4px; margin-left: auto; }
.btn.tiny { padding: 1px 7px; font-size: 11.5px; line-height: 1.6; }
.conn-reveal.active { color: var(--accent); border-color: var(--accent); }

/* ---------- pipeline runs ---------- */
.pl-run-group { border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; margin-bottom: 12px; }
.pl-run-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; flex-wrap: wrap; }
.pl-run-group table { font-size: 13px; }
.pl-run-group td { padding: 5px 8px; }

/* ---------- warehouse preview ---------- */
.col-type { font-size: 10.5px; font-weight: 500; text-transform: none; letter-spacing: 0; color: var(--muted); }
.preview-wrap { max-height: 55vh; overflow: auto; border: 1px solid var(--border); border-radius: 8px; }
.preview-wrap table { font-size: 13px; }
.preview-wrap th { position: sticky; top: 0; background: var(--surface); z-index: 1; }
.preview-wrap td { white-space: nowrap; max-width: 320px; overflow: hidden; text-overflow: ellipsis; }

/* ---------- BI tab ---------- */
.bi-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 10px 20px; background: var(--surface); border-bottom: 1px solid var(--border);
  font-size: 13px;
}
#bi-frame { flex: 1; border: none; width: 100%; background: var(--surface); }

/* ---------- modal ---------- */
.modal {
  position: fixed; inset: 0; background: rgba(10, 14, 20, .55);
  display: flex; align-items: center; justify-content: center; z-index: 50; padding: 24px;
}
.modal-box {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  width: min(900px, 100%); max-height: 85vh; display: flex; flex-direction: column;
}
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; border-bottom: 1px solid var(--border);
}
.modal-head h3 { margin: 0; font-size: 15px; }
#modal-body { padding: 16px 20px; overflow: auto; }
#modal-body pre {
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 12px; font-size: 12px; overflow: auto; max-height: 50vh; white-space: pre-wrap;
}
.run-row { cursor: pointer; }
.run-row:hover td { background: var(--bg); }

@media (max-width: 760px) {
  header { flex-wrap: wrap; gap: 12px; }
  .stack-links { margin-left: 0; }
  .form-grid { grid-template-columns: 1fr; }
  .span-2 { grid-column: span 1; }
}