:root {
  --bg: #f3f5fa;
  --surface: #ffffff;
  --surface2: #f7f9fc;
  --text: #11142a;
  --text-muted: #6c7390;
  --border: #e3e7f1;
  --primary: #4f63ff;
  --primary-hover: #3b4fe6;
  --badge: #e8ecff;
  --badge-text: #4f63ff;
  --accent: #16c79a;
  --warn: #f59e0b;
  --danger: #e05a6c;
  --shadow-sm: 0 1px 2px rgba(17, 20, 42, .04), 0 1px 4px rgba(17, 20, 42, .04);
  --shadow: 0 4px 16px rgba(17, 20, 42, .06), 0 1px 3px rgba(17, 20, 42, .04);
  --shadow-lg: 0 14px 40px rgba(17, 20, 42, .10), 0 4px 12px rgba(17, 20, 42, .06);
  --radius: 14px;
  --radius-sm: 8px;
  --drag-over: #eef1ff;
  --layout-min: 1180px;
}
[data-theme=dark] {
  --bg: #0b0d17;
  --surface: #161a26;
  --surface2: #1f2436;
  --text: #e8eaf0;
  --text-muted: #8b95b0;
  --border: #2a2f44;
  --primary: #7d92ff;
  --primary-hover: #95a7ff;
  --badge: #1f2547;
  --badge-text: #95a7ff;
  --accent: #2ad8a4;
  --warn: #fbbf24;
  --danger: #ff7a8a;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);
  --shadow: 0 4px 16px rgba(0, 0, 0, .4), 0 1px 3px rgba(0, 0, 0, .3);
  --shadow-lg: 0 14px 40px rgba(0, 0, 0, .5), 0 4px 12px rgba(0, 0, 0, .35);
  --drag-over: #1e2540;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter, Roboto, sans-serif;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  display: flex;
  min-height: 100vh;
  transition: background .2s, color .2s;
}
/* Desktop keeps the fixed minimum layout width (scrolls below the floor). */
@media (min-width: 901px) {
  body { min-width: var(--layout-min); }
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

/* Sidebar */
.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 18px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 10;
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  width: 38px; height: 38px;
  border-radius: 9px;
  font-size: 1.1rem;
  cursor: pointer;
  align-items: center; justify-content: center;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.05rem; font-weight: 700;
  padding: 6px 10px 22px;
  letter-spacing: -.01em;
}
.brand .brand-mark {
  width: 30px; height: 30px; border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.brand .brand-mark .icon { width: 17px; height: 17px; }

/* Icon sprite usage */
.icon { width: 18px; height: 18px; flex-shrink: 0; vertical-align: middle; }
.icon-lg { width: 24px; height: 24px; }
.icon-xs { width: 14px; height: 14px; }
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav-section {
  margin-top: 14px;
  padding: 0 11px 4px;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
}
.nav-group { display: flex; flex-direction: column; gap: 2px; }
.nav-group-toggle {
  display: flex; align-items: center; gap: 11px;
  width: 100%;
  padding: 9px 11px;
  border: none;
  background: none;
  border-radius: 9px;
  color: var(--text);
  font-size: .89rem;
  font-weight: 500;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  transition: background .12s, color .12s;
}
.nav-group-toggle:hover { background: var(--surface2); }
.nav-group-toggle .nav-icon { width: 18px; height: 18px; opacity: .85; }
.nav-group-label { flex: 1; }
.nav-group-toggle .nav-caret {
  width: 14px; height: 14px; opacity: .6;
  transition: transform .15s;
}
.nav-group.open > .nav-group-toggle .nav-caret { transform: rotate(90deg); }
/* Direct-child selectors: an open parent must not reveal a closed nested group's children. */
.nav-group > .nav-group-children { display: none; flex-direction: column; gap: 2px; }
.nav-group.open > .nav-group-children { display: flex; }
.nav-group-children { margin-left: 16px; padding-left: 8px; border-left: 1px solid var(--border); }
/* Second-level groups read as subordinate: lighter label, tighter row. */
.nav-group-children .nav-group-toggle { padding: 7px 11px; font-size: .84rem; color: var(--muted); }
.nav-group-children .nav-group-toggle:hover { color: var(--text); }
.nav-group-children .nav-group-toggle .nav-icon { width: 16px; height: 16px; }
.nav a {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 11px;
  border-radius: 9px;
  color: var(--text);
  font-size: .89rem;
  font-weight: 500;
  text-decoration: none;
  transition: background .12s, color .12s, transform .12s;
}
.nav a .nav-icon { width: 18px; height: 18px; opacity: .85; }
.nav a:hover .nav-icon, .nav a.active .nav-icon { opacity: 1; }
.nav a:hover { background: var(--surface2); color: var(--text); }
.nav a.active {
  background: var(--badge);
  color: var(--badge-text);
  font-weight: 600;
}
.sidebar-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding-top: 12px;
  display: flex; align-items: center; justify-content: space-between;
  font-size: .75rem;
  color: var(--text-muted);
}
/* Signed-in footer: who you are, plus sign out. */
.sidebar-account { gap: 8px; }
.account-link { display: flex; align-items: center; gap: 7px; min-width: 0; flex: 1; color: var(--text); }
.account-link:hover { color: var(--primary); }
.account-avatar {
  width: 26px; height: 26px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-size: .66rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.account-name { font-size: .78rem; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.logout-btn {
  background: none; border: 1px solid var(--border); color: var(--text-muted);
  border-radius: 9px; padding: 6px 9px; font-size: .72rem; font-family: inherit;
  cursor: pointer; flex-shrink: 0; transition: background .12s, color .12s;
}
.logout-btn:hover { background: var(--surface2); color: var(--text); }

.theme-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  width: 34px; height: 34px;
  border-radius: 9px;
  cursor: pointer;
  font-size: .95rem;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background .12s, transform .12s;
}
.theme-btn:hover { background: var(--surface2); transform: translateY(-1px); }

/* Page shell */
.page {
  flex: 1;
  min-width: 0;
  padding: 28px 32px 56px;
}
.page-inner { margin: 0 auto; }
.page-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 16px; margin-bottom: 24px;
}
.page-title { font-size: 1.5rem; font-weight: 700; letter-spacing: -.015em; }
.page-subtitle { color: var(--text-muted); font-size: .9rem; margin-top: 4px; }

/* Common components */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.card-pad { padding: 22px; }
.card-hover { transition: transform .15s, box-shadow .15s, border-color .15s; }
.card-hover:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--primary) 35%, var(--border)); }

.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 14px;
  border-radius: 9px;
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  transition: background .12s, border-color .12s, transform .12s;
}
.btn:hover { background: var(--surface2); }
.btn-primary {
  background: var(--primary); border-color: var(--primary); color: #fff;
  box-shadow: 0 1px 0 rgba(255,255,255,.18) inset, var(--shadow-sm);
}
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); color: #fff; }
.btn-ghost { background: transparent; }

.pill {
  display: inline-flex; align-items: center; gap: 5px;
  background: var(--badge); color: var(--badge-text);
  font-size: .78rem; font-weight: 700;
  padding: 3px 10px; border-radius: 999px;
}

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: .72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; font-weight: 600; }
.field input[type=date], .field input[type=text], .field input[type=search], .field input[type=number], .field input[type=email], .field input[type=password], .field select {
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 9px;
  padding: 8px 11px; font-size: .9rem; font-family: inherit;
  outline: none; transition: border-color .12s, box-shadow .12s;
}
.field input:focus, .field select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent); }

/* Login and self-service account forms. Pages using these render no sidebar. */
.auth-wrap { flex: 1; display: flex; align-items: center; justify-content: center; padding: 32px; }
.auth-card {
  width: 100%; max-width: 380px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 30px;
  display: flex; flex-direction: column; gap: 16px;
}
.auth-card .auth-title { font-size: 1.15rem; font-weight: 700; }
.auth-card .auth-sub { font-size: .85rem; color: var(--text-muted); }
.auth-error {
  display: none; font-size: .85rem; padding: 9px 12px; border-radius: 9px;
  background: color-mix(in srgb, var(--danger) 14%, var(--surface));
  color: var(--danger); border: 1px solid color-mix(in srgb, var(--danger) 30%, var(--border));
}

/* Flatpickr theme bridges */
.flatpickr-input { cursor: pointer; }
[data-theme=dark] .flatpickr-calendar { background: var(--surface); color: var(--text); box-shadow: var(--shadow-lg); border: 1px solid var(--border); }
[data-theme=dark] .flatpickr-calendar.arrowTop:before, [data-theme=dark] .flatpickr-calendar.arrowTop:after { border-bottom-color: var(--border); }
[data-theme=dark] .flatpickr-months .flatpickr-month, [data-theme=dark] .flatpickr-current-month, [data-theme=dark] .flatpickr-monthDropdown-months, [data-theme=dark] .flatpickr-current-month input.cur-year { color: var(--text); background: transparent; }
[data-theme=dark] .flatpickr-monthDropdown-months option { background: var(--surface); color: var(--text); }
[data-theme=dark] .flatpickr-weekdays, [data-theme=dark] span.flatpickr-weekday { background: transparent; color: var(--text-muted); }
[data-theme=dark] .flatpickr-day { color: var(--text); }
[data-theme=dark] .flatpickr-day.prevMonthDay, [data-theme=dark] .flatpickr-day.nextMonthDay { color: var(--text-muted); }
[data-theme=dark] .flatpickr-day:hover, [data-theme=dark] .flatpickr-day.today:hover { background: var(--surface2); border-color: var(--border); }
[data-theme=dark] .flatpickr-day.today { border-color: var(--primary); color: var(--primary); }
[data-theme=dark] .flatpickr-day.selected, [data-theme=dark] .flatpickr-day.selected:hover, [data-theme=dark] .flatpickr-day.startRange, [data-theme=dark] .flatpickr-day.endRange { background: var(--primary); border-color: var(--primary); color: #fff; }
[data-theme=dark] .flatpickr-months .flatpickr-prev-month, [data-theme=dark] .flatpickr-months .flatpickr-next-month { fill: var(--text); color: var(--text); }
[data-theme=dark] .flatpickr-months .flatpickr-prev-month:hover svg, [data-theme=dark] .flatpickr-months .flatpickr-next-month:hover svg { fill: var(--primary); }

/* Tom Select theme bridges */
.ts-control { background: var(--bg) !important; color: var(--text) !important; border-color: var(--border) !important; border-radius: 9px !important; padding: 6px 10px !important; }
.ts-control:focus-within { border-color: var(--primary) !important; box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent) !important; }
.ts-dropdown { background: var(--surface) !important; color: var(--text) !important; border-color: var(--border) !important; border-radius: 10px !important; box-shadow: var(--shadow-lg) !important; }
.ts-dropdown .active { background: var(--badge) !important; color: var(--badge-text) !important; }
.ts-dropdown .optgroup-header { background: var(--surface2) !important; color: var(--text-muted) !important; font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; }

/* Utilities */
.row { display: flex; align-items: center; gap: 12px; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.muted { color: var(--text-muted); }
.spacer { flex: 1; }

/* Mobile: no fixed minimum width; sidebar collapses into a top bar + drawer. */
@media (max-width: 900px) {
  body { flex-direction: column; min-width: 0; }

  .sidebar {
    width: 100%;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .brand { flex: 1; padding: 0; }
  .nav-toggle { display: inline-flex; }

  .sidebar .nav,
  .sidebar .sidebar-footer { display: none; width: 100%; }
  .sidebar.open .nav { display: flex; }
  .sidebar.open .sidebar-footer {
    display: flex;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
  }

  .page { padding: 20px 16px 40px; }
}


/* Ticket tables — the average-age report and the Ticket Flow drill-downs under each chart.
   These rules started as a copy inside average-age.html; they live here now because seven metric
   pages render the same table through static/ticket-table.js. */
.table-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 8px 4px; box-shadow: var(--shadow-sm); overflow-x: auto; }
table.tickets { width: 100%; border-collapse: collapse; font-size: .85rem; }
table.tickets th { text-align: left; font-size: .66rem; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; color: var(--text-muted); padding: 10px; border-bottom: 1px solid var(--border); cursor: pointer; user-select: none; white-space: nowrap; }
table.tickets th:hover { color: var(--text); }
table.tickets th .caret { opacity: 0; margin-left: 5px; }
table.tickets th.sorted .caret { opacity: 1; }
table.tickets td { padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
table.tickets tr:last-child td { border-bottom: none; }
td.key { font-weight: 700; white-space: nowrap; }
td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
td.date { white-space: nowrap; color: var(--text-muted); }
td.summary-cell { min-width: 260px; }
.muted { color: var(--text-muted); }
.tag { display: inline-block; font-size: .7rem; font-weight: 700; padding: 2px 7px; border-radius: 999px; background: var(--surface2); border: 1px solid var(--border); white-space: nowrap; }
.msg { color: var(--text-muted); padding: 24px; text-align: center; }

/* Drill-down header: the row count, and the chip naming the bucket a chart click selected. */
.ticket-table-head { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; padding: 10px 10px 4px; }
.ticket-table-head .spacer { flex: 1; }
.bucket-chip { display: inline-flex; gap: 8px; align-items: center; font-size: .78rem; font-weight: 700; padding: 4px 11px; border-radius: 999px; background: var(--badge); color: var(--badge-text); }
.bucket-chip button { background: none; border: none; color: inherit; font: inherit; cursor: pointer; opacity: .75; text-decoration: underline; padding: 0; }
.bucket-chip button:hover { opacity: 1; }
.ticket-note { color: var(--warn); font-size: .78rem; font-weight: 600; }
/* Outcome pills for the Result and Failed columns, and for a high alert priority. They reuse the
   .tag shape so a table's pills stay one family and only recolour, and they take the existing
   --accent/--danger tokens rather than the deployment-speed scatter's hardcoded hex, so both themes
   are covered for free. The scatter keeps its own colours; recolouring it is not this change. */
.tag-ok { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); color: var(--accent); }
.tag-fail { border-color: color-mix(in srgb, var(--danger) 45%, var(--border)); color: var(--danger); }

/* Pagination footer. Hidden by the component at 50 rows or fewer. */
.ticket-pager { display: flex; gap: 10px; align-items: center; justify-content: flex-end; padding: 12px 10px 8px; border-top: 1px solid var(--border); color: var(--text-muted); font-size: .8rem; }
.ticket-pager button { background: var(--surface2); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 5px 11px; font-size: .8rem; cursor: pointer; transition: background .12s, color .12s, border-color .12s; }
.ticket-pager button:hover:not(:disabled) { background: var(--badge); color: var(--badge-text); border-color: color-mix(in srgb, var(--primary) 35%, var(--border)); }
.ticket-pager button:disabled { opacity: .45; cursor: default; }