:root {
  --surface-1: #fcfcfb;
  --page: #f9f9f7;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --baseline: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --series-1: #2a78d6;
  --series-2: #1baf7a;
  --good: #0ca30c;
  --good-text: #006300;
  --warning: #eda100;
  --serious: #ec835a;
  --critical: #d03b3b;
  --accent: #2a78d6;
  --shadow: 0 1px 2px rgba(11, 11, 11, 0.06), 0 4px 16px rgba(11, 11, 11, 0.06);
  --radius: 12px;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --surface-1: #1a1a19;
    --page: #0d0d0d;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --baseline: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --series-1: #3987e5;
    --series-2: #199e70;
    --good: #0ca30c;
    --good-text: #0ca30c;
    --warning: #c98500;
    --serious: #ec835a;
    --critical: #d03b3b;
    --accent: #3987e5;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 16px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  background: var(--page);
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}
.muted { color: var(--muted); }
.tnum { font-variant-numeric: tabular-nums; }
h1, h2, h3 { margin: 0; font-weight: 650; }

/* ---------- buttons ---------- */
.btn {
  font-family: inherit;
  font-size: 14px;
  border: 1px solid var(--border);
  background: var(--surface-1);
  color: var(--text-primary);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: background .12s, border-color .12s, opacity .12s;
}
.btn:hover { border-color: var(--baseline); }
.btn-primary { background: var(--accent); color: #fff; border-color: transparent; }
.btn-primary:hover { opacity: .9; }
.btn-ghost { background: transparent; }
.btn-danger { background: transparent; color: var(--critical); border-color: var(--critical); }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-block { width: 100%; padding: 11px; font-size: 15px; }
.spacer { flex: 1; }

/* ---------- login ---------- */
.login-screen {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--page); padding: 20px;
}
.login-card {
  width: 100%; max-width: 360px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 26px;
  display: flex; flex-direction: column; gap: 14px;
}
.login-brand { text-align: center; margin-bottom: 6px; }
.login-brand h1 { font-size: 20px; margin-top: 8px; }
.login-brand p { margin: 2px 0 0; font-size: 13px; }
.login-mark { font-size: 34px; }
.field { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: var(--text-secondary); }
.field input {
  font-family: inherit; font-size: 15px;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--page);
  color: var(--text-primary);
}
.field input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.login-error { color: var(--critical); font-size: 13px; margin: 0; text-align: center; }
.login-hint { font-size: 12px; text-align: center; margin: 2px 0 0; }

/* ---------- topbar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px;
  background: var(--surface-1);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
  flex-wrap: wrap; gap: 8px;
}
.topbar-left { display: flex; align-items: center; gap: 9px; font-size: 16px; }
.brand-mark { font-size: 20px; }
.topbar-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.today { font-size: 13px; color: var(--muted); }
.badge {
  font-size: 12px; font-weight: 650; text-transform: uppercase; letter-spacing: .04em;
  padding: 3px 9px; border-radius: 20px;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
}
.badge.admin { background: color-mix(in srgb, var(--good) 16%, transparent); color: var(--good-text); }

/* ---------- controls ---------- */
.controls {
  max-width: 1120px; margin: 18px auto 0; padding: 0 20px;
  display: flex; flex-direction: column; gap: 10px;
}
.controls-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.ctrl { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-secondary); }
.ctrl input[type=date] {
  font-family: inherit; font-size: 14px; padding: 6px 9px;
  border: 1px solid var(--border); border-radius: 7px;
  background: var(--surface-1); color: var(--text-primary);
}
.presets { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  font-family: inherit; font-size: 13px;
  border: 1px solid var(--border); background: var(--surface-1);
  color: var(--text-secondary); padding: 5px 11px; border-radius: 20px; cursor: pointer;
}
.chip:hover { border-color: var(--baseline); }
.chip.active { background: var(--accent); color: #fff; border-color: transparent; }
.train-filter { display: flex; gap: 8px; flex-wrap: wrap; }
.tf-item { display: flex; align-items: center; gap: 6px; font-size: 13px;
  border: 1px solid var(--border); padding: 4px 10px; border-radius: 20px; cursor: pointer; }
.tf-item input { accent-color: var(--accent); }
.range-note { font-size: 12.5px; margin: 0; }

/* ---------- train cards ---------- */
.train-list { max-width: 1120px; margin: 16px auto 0; padding: 0 20px; display: flex; flex-direction: column; gap: 12px; }
.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card-head {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px; cursor: pointer; user-select: none;
  flex-wrap: wrap;
}
.card-head:hover { background: color-mix(in srgb, var(--accent) 4%, transparent); }
.card-caret { color: var(--muted); font-size: 12px; transition: transform .15s; width: 14px; }
.card.open .card-caret { transform: rotate(90deg); }
.card-title { font-size: 16px; font-weight: 650; min-width: 90px; }
.head-kpis { display: flex; gap: 18px; flex-wrap: wrap; margin-left: auto; }
.head-kpi { display: flex; flex-direction: column; }
.head-kpi .k-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.head-kpi .k-val { font-size: 15px; font-weight: 600; }
.card-body { padding: 0 18px 18px; display: none; }
.card.open .card-body { display: block; }

/* kpi tiles */
.kpi-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px; margin: 6px 0 16px;
}
.tile {
  border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px;
  background: var(--page);
}
.tile .t-label { font-size: 11.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.tile .t-value { font-size: 20px; font-weight: 650; margin-top: 3px; font-variant-numeric: tabular-nums; }
.tile .t-sub { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.t-value.pos { color: var(--good-text); }
.t-value.neg { color: var(--critical); }

/* recovery meter */
.meter-wrap { margin: 2px 0 18px; }
.meter-top { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 6px; }
.meter {
  height: 12px; border-radius: 20px; background: var(--grid);
  overflow: hidden; border: 1px solid var(--border);
}
.meter-fill { height: 100%; background: var(--series-1); border-radius: 20px 0 0 20px; transition: width .3s; }
.meter-sub { font-size: 12px; color: var(--muted); margin-top: 5px; }

/* subsections */
.sub-controls { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.sub-controls .own-range { display: flex; align-items: center; gap: 6px; }
.detail-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 18px; align-items: start; }
@media (max-width: 760px) { .detail-grid { grid-template-columns: 1fr; } }

.sched-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 10px; }
table.sched { border-collapse: collapse; width: 100%; font-size: 13px; }
table.sched th, table.sched td { padding: 7px 12px; text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
table.sched th { position: sticky; top: 0; background: var(--surface-1); color: var(--muted); font-weight: 600;
  text-transform: uppercase; font-size: 11px; letter-spacing: .03em; border-bottom: 1px solid var(--border); text-align: right; }
table.sched th:first-child, table.sched td:first-child { text-align: left; }
table.sched tbody tr:nth-child(even) { background: color-mix(in srgb, var(--grid) 35%, transparent); }
table.sched td.diff-pos { color: var(--good-text); }
table.sched td.diff-neg { color: var(--critical); }
table.sched td.note { text-align: left; color: var(--muted); font-size: 12px; white-space: normal; }
.row-edit { color: var(--accent); cursor: pointer; font-size: 12px; }
.sched-scroll { max-height: 420px; overflow-y: auto; }

.breakdown { border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; background: var(--page); }
.breakdown h3 { font-size: 12.5px; text-transform: uppercase; color: var(--muted); letter-spacing: .03em; margin-bottom: 8px; }
.breakdown table { width: 100%; border-collapse: collapse; font-size: 13px; }
.breakdown td { padding: 4px 0; }
.breakdown td:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.breakdown tr.sep td { border-top: 1px solid var(--border); }

table.partnership { width: 100%; border-collapse: collapse; font-size: 13px; }
table.partnership th { text-align: left; color: var(--muted); font-weight: 600; font-size: 11px;
  text-transform: uppercase; letter-spacing: .03em; padding: 4px 8px 6px 0; border-bottom: 1px solid var(--border); }
table.partnership th:nth-child(2) { text-align: right; }
table.partnership td { padding: 5px 0; vertical-align: middle; }
table.partnership td:nth-child(2) { text-align: right; white-space: nowrap; padding-right: 10px; }
table.partnership td:first-child { padding-right: 10px; }
table.partnership tr.sep td { border-top: 1px solid var(--border); padding-top: 8px; }
.rn-cell { width: 38%; }
.rn-cell.note { color: var(--muted); }
.rn-input { width: 100%; font-family: inherit; font-size: 12.5px; padding: 4px 7px;
  border: 1px solid var(--border); border-radius: 6px; background: var(--page); color: var(--text-primary); }
.rn-input:focus { outline: 1.5px solid var(--accent); outline-offset: -1px; }

/* ---------- cumulative ---------- */
.cumulative { max-width: 1120px; margin: 20px auto 0; padding: 0 20px; }
.cum-card {
  background: var(--surface-1); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px;
}
.cum-card h2 { font-size: 16px; margin-bottom: 4px; }
.cum-sub { font-size: 13px; color: var(--muted); margin-bottom: 14px; }

/* ---------- modal ---------- */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: flex; align-items: center; justify-content: center; z-index: 50; padding: 20px; }
.modal-card { background: var(--surface-1); border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; max-width: 460px; padding: 22px; display: flex; flex-direction: column; gap: 12px; }
.modal-card-sm { max-width: 360px; }
.modal-head { display: flex; justify-content: space-between; align-items: center; }
.modal-intro { font-size: 12.5px; margin: 0; }
.modal-intro code { font-family: var(--mono); background: var(--page); padding: 1px 4px; border-radius: 4px; }
.modal-actions { display: flex; align-items: center; gap: 8px; margin-top: 4px; }
.modal-actions-left { display: flex; gap: 8px; flex: 1; }
.field-row { display: flex; gap: 10px; }
.field-row .field { flex: 1; }
.field select {
  font-family: inherit; font-size: 15px; padding: 9px 11px;
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--page); color: var(--text-primary);
}
#notes-rows { display: flex; flex-direction: column; gap: 8px; }
.note-row { display: flex; gap: 8px; align-items: center; }
.note-row input[type=text] { flex: 2; }
.note-row input[type=number] { flex: 1; }
.note-row input { font-family: inherit; font-size: 14px; padding: 7px 9px;
  border: 1px solid var(--border); border-radius: 7px; background: var(--page); color: var(--text-primary); }
.note-row .note-del { cursor: pointer; color: var(--critical); border: none; background: none; font-size: 16px; padding: 0 4px; }
.save-status { font-size: 12.5px; padding: 4px 10px; border-radius: 7px; white-space: nowrap; }
.save-status.ok { background: color-mix(in srgb, var(--good) 16%, transparent); color: var(--good-text); }
.save-status.err { background: color-mix(in srgb, var(--critical) 16%, transparent); color: var(--critical); }

/* ---------- footer ---------- */
.footer { max-width: 1120px; margin: 24px auto; padding: 0 20px; font-size: 12.5px; display: flex; gap: 14px; align-items: center; }
.dirty-flag { color: var(--warning); font-weight: 600; }

[hidden] { display: none !important; }