:root {
  color-scheme: dark;
  --bg: #080b14;
  --bg-soft: #0d1220;
  --panel: #11182a;
  --panel-2: #151e34;
  --line: #26314e;
  --line-strong: #35456b;
  --text: #e9eefb;
  --muted: #93a0bd;
  --muted-2: #6b7895;
  --accent: #63e6ff;
  --accent-2: #9d8cff;
  --ok: #5ee2a0;
  --warn: #ffd166;
  --bad: #ff6b7a;
  --mock: #d7a6ff;
  --shadow: 0 18px 50px rgba(0, 0, 0, .35);
  --radius: 16px;
}
* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  background:
    radial-gradient(1100px 600px at 85% -10%, rgba(99, 230, 255, .12), transparent 55%),
    radial-gradient(900px 500px at 0% 100%, rgba(157, 140, 255, .10), transparent 55%),
    var(--bg);
  color: var(--text);
  font: 14px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans JP", sans-serif;
}
button, input, select { font: inherit; }
button { cursor: pointer; }
a { color: var(--accent); }
.app-shell { display: grid; grid-template-columns: 236px minmax(0, 1fr); min-height: 100vh; }
.sidebar {
  position: sticky; top: 0; height: 100vh; padding: 22px 16px;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(17, 24, 42, .96), rgba(8, 11, 20, .98));
  display: flex; flex-direction: column; gap: 22px;
}
.brand { display: flex; gap: 12px; align-items: center; padding: 2px 8px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #061018; font-weight: 900; font-size: 20px;
  box-shadow: 0 0 28px rgba(99, 230, 255, .25);
}
.brand-title { font-weight: 800; letter-spacing: .02em; }
.brand-sub { color: var(--muted-2); font-size: 11px; text-transform: uppercase; letter-spacing: .16em; }
.nav { display: grid; gap: 6px; }
.nav-item {
  display: flex; align-items: center; gap: 10px; width: 100%; padding: 10px 12px;
  color: var(--muted); background: transparent; border: 1px solid transparent; border-radius: 10px; text-align: left;
}
.nav-item:hover { color: var(--text); background: rgba(255, 255, 255, .03); }
.nav-item.active { color: var(--text); background: linear-gradient(90deg, rgba(99, 230, 255, .12), rgba(157, 140, 255, .06)); border-color: rgba(99, 230, 255, .22); }
.nav-icon { width: 20px; text-align: center; color: var(--accent); }
.sidebar-foot { margin-top: auto; display: grid; gap: 10px; }
.mini-label, .eyebrow { color: var(--muted-2); font-size: 10px; letter-spacing: .16em; text-transform: uppercase; font-weight: 700; }
.side-health { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 12px; min-height: 20px; }
.main { min-width: 0; padding: 0 28px 64px; }
.topbar { display: flex; justify-content: space-between; align-items: flex-end; gap: 18px; padding: 26px 0 20px; border-bottom: 1px solid var(--line); margin-bottom: 22px; }
h1 { font-size: 26px; line-height: 1.15; margin: 4px 0 0; letter-spacing: -.02em; }
h2 { font-size: 18px; margin: 0; }
h3 { font-size: 15px; margin: 0; }
.topbar-actions, .toolbar, .row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.topbar-actions { align-items: center; }
.clock { font: 12px ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--muted); padding: 8px 10px; border: 1px solid var(--line); border-radius: 9px; background: rgba(0, 0, 0, .18); }
.view { display: grid; gap: 18px; }
.btn {
  border: 1px solid var(--line-strong); color: var(--text); background: #17213a;
  border-radius: 9px; padding: 8px 12px; transition: .15s ease;
}
.btn:hover { border-color: var(--accent); background: #1b2948; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-accent { background: linear-gradient(135deg, #1a7d91, #4b5bb5); border-color: #3ea8bb; color: #fff; font-weight: 700; }
.btn-danger { border-color: #7b2a38; background: #321821; color: #ffb4bd; }
.btn-block { width: 100%; }
.icon-btn { background: transparent; border: 1px solid transparent; color: var(--muted); font-size: 20px; border-radius: 8px; width: 34px; height: 34px; }
.icon-btn:hover { color: var(--text); border-color: var(--line); }
input, select {
  background: #0b1120; color: var(--text); border: 1px solid var(--line-strong); border-radius: 8px; padding: 8px 10px; min-width: 0;
}
input:focus, select:focus { outline: 2px solid rgba(99, 230, 255, .25); border-color: var(--accent); }
.panel {
  background: linear-gradient(180deg, rgba(21, 30, 52, .88), rgba(13, 18, 32, .92));
  border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
}
.panel-pad { padding: 18px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.panel-body { padding: 18px; }
.muted { color: var(--muted); }
.faint { color: var(--muted-2); }
.small { font-size: 12px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.grid { display: grid; gap: 14px; }
.kpis { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.kpi { padding: 16px 18px; }
.kpi-label { color: var(--muted); font-size: 12px; }
.kpi-value { font-size: 28px; font-weight: 800; letter-spacing: -.03em; margin-top: 2px; }
.kpi-sub { color: var(--muted-2); font-size: 12px; margin-top: 2px; }
.provider-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.provider-card { padding: 16px; display: grid; gap: 12px; }
.provider-card-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.provider-name { font-weight: 800; font-size: 16px; }
.provider-id { color: var(--muted-2); font: 11px ui-monospace, monospace; }
.provider-stats { display: flex; gap: 14px; color: var(--muted); font-size: 12px; }
.provider-stats b { color: var(--text); font-size: 14px; }
.badge, .pill {
  display: inline-flex; align-items: center; gap: 5px; border-radius: 999px; padding: 3px 9px;
  font-size: 11px; font-weight: 700; letter-spacing: .02em; border: 1px solid transparent;
}
.badge.ok, .pill.ok { color: var(--ok); background: rgba(94, 226, 160, .10); border-color: rgba(94, 226, 160, .28); }
.badge.bad, .pill.bad { color: var(--bad); background: rgba(255, 107, 122, .10); border-color: rgba(255, 107, 122, .28); }
.badge.warn, .pill.warn { color: var(--warn); background: rgba(255, 209, 102, .10); border-color: rgba(255, 209, 102, .28); }
.badge.mock, .pill.mock { color: var(--mock); background: rgba(215, 166, 255, .10); border-color: rgba(215, 166, 255, .30); }
.badge.neutral, .pill.neutral { color: var(--muted); background: rgba(147, 160, 189, .08); border-color: var(--line); }
.card-actions { display: flex; gap: 7px; flex-wrap: wrap; }
.card-actions .btn { padding: 6px 9px; font-size: 12px; }
.table-wrap { overflow: auto; border-radius: 12px; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; min-width: 680px; }
th, td { padding: 10px 12px; border-bottom: 1px solid rgba(38, 49, 78, .8); text-align: left; vertical-align: middle; }
th { color: var(--muted-2); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; background: rgba(0, 0, 0, .15); }
tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: rgba(255, 255, 255, .02); }
.status-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: 6px; background: var(--muted); }
.status-dot.normal { background: var(--ok); box-shadow: 0 0 10px rgba(94, 226, 160, .5); }
.status-dot.delay { background: var(--warn); }
.status-dot.suspended { background: var(--bad); }
.empty { padding: 26px; text-align: center; color: var(--muted); border: 1px dashed var(--line-strong); border-radius: 12px; }
.segmented { display: inline-flex; padding: 3px; background: #0a0f1c; border: 1px solid var(--line); border-radius: 10px; }
.segmented button { border: 0; background: transparent; color: var(--muted); border-radius: 7px; padding: 6px 11px; }
.segmented button.active { background: #1b2948; color: var(--text); }
.toolbar { justify-content: space-between; }
.toolbar-left, .toolbar-right { display: flex; gap: 9px; align-items: center; flex-wrap: wrap; }
.train-graph { display: grid; gap: 12px; padding: 4px 0; }
.line-row { display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: 14px; align-items: center; }
.line-label { display: grid; gap: 3px; }
.line-name { font-weight: 700; font-size: 13px; }
.line-meta { color: var(--muted-2); font-size: 11px; }
.line-track-wrap { position: relative; padding: 16px 8px; min-height: 64px; }
.station-labels { position: absolute; inset: 0 8px auto; top: 44px; display: flex; justify-content: space-between; color: var(--muted-2); font-size: 9px; }
.station-tick { position: absolute; top: 30px; width: 1px; height: 8px; background: var(--line-strong); }
.line-track { position: absolute; left: 8px; right: 8px; top: 30px; height: 4px; border-radius: 99px; background: var(--line-strong); }
.line-track::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: var(--line-color, var(--accent)); opacity: .75; }
.train-marker {
  position: absolute; top: 22px; transform: translateX(-50%);
  border: 1px solid rgba(255, 255, 255, .25); border-radius: 7px; padding: 3px 7px;
  background: #0b1120; color: var(--text); font-size: 10px; font-weight: 700; white-space: nowrap;
  box-shadow: 0 4px 16px rgba(0, 0, 0, .45); transition: .15s ease; z-index: 2;
}
.train-marker:hover, .train-marker.selected { border-color: var(--accent); transform: translateX(-50%) translateY(-3px); }
.train-marker.delay { border-color: var(--warn); color: var(--warn); }
.train-card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.train-card { padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: rgba(9, 14, 26, .6); display: grid; gap: 7px; }
.train-card-head { display: flex; justify-content: space-between; gap: 8px; align-items: start; }
.train-card-title { font-weight: 800; }
.train-card-sub { color: var(--muted); font-size: 12px; }
.progress { height: 5px; background: #1a243d; border-radius: 99px; overflow: hidden; }
.progress > span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.detail-list { display: grid; gap: 8px; }
.detail-row { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid rgba(38, 49, 78, .75); font-size: 13px; }
.detail-row:last-child { border-bottom: 0; }
.detail-row span:first-child { color: var(--muted); }
.prewrap { white-space: pre-wrap; word-break: break-word; }
.code-block { background: #070b14; border: 1px solid var(--line); border-radius: 10px; padding: 12px; overflow: auto; max-height: 260px; font: 11px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; color: #c8d5f3; }
.drawer { position: fixed; inset: 0; pointer-events: none; z-index: 20; }
.drawer.open { pointer-events: auto; }
.drawer-backdrop { position: absolute; inset: 0; background: rgba(2, 5, 12, .65); opacity: 0; transition: .2s ease; }
.drawer.open .drawer-backdrop { opacity: 1; }
.drawer-panel {
  position: absolute; top: 0; right: 0; width: min(560px, 94vw); height: 100%; overflow: auto;
  background: linear-gradient(180deg, #121b31, #0b1120); border-left: 1px solid var(--line-strong);
  transform: translateX(100%); transition: .22s ease; box-shadow: -20px 0 60px rgba(0, 0, 0, .45);
}
.drawer.open .drawer-panel { transform: none; }
.drawer-head { display: flex; justify-content: space-between; gap: 12px; align-items: start; padding: 20px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: rgba(18, 27, 49, .96); backdrop-filter: blur(8px); z-index: 2; }
.drawer-body { padding: 20px; display: grid; gap: 16px; }
.settings-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 14px; align-items: start; }
.settings-row { display: flex; justify-content: space-between; gap: 14px; align-items: center; padding: 10px 0; border-bottom: 1px solid rgba(38, 49, 78, .7); }
.settings-row:last-child { border-bottom: 0; }
.settings-row label { color: var(--muted); }
.settings-row input, .settings-row select { max-width: 200px; }
.toast { position: fixed; right: 24px; bottom: 24px; max-width: 460px; padding: 12px 14px; border: 1px solid var(--line-strong); border-radius: 11px; background: #141d34; color: var(--text); box-shadow: var(--shadow); opacity: 0; transform: translateY(8px); transition: .2s ease; pointer-events: none; z-index: 30; }
.toast.show { opacity: 1; transform: none; }
.toast.ok { border-color: rgba(94, 226, 160, .4); }
.toast.bad { border-color: rgba(255, 107, 122, .45); }
.spinner { width: 12px; height: 12px; border: 2px solid rgba(255, 255, 255, .15); border-top-color: var(--accent); border-radius: 50%; display: inline-block; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.fade-in { animation: fade .18s ease-out; }
@keyframes fade { from { opacity: .5; transform: translateY(3px); } to { opacity: 1; transform: none; } }
.breadcrumb { display: flex; gap: 8px; align-items: center; color: var(--muted-2); font-size: 12px; }
.breadcrumb button { border: 0; background: none; color: var(--accent); padding: 0; }
.banner { padding: 10px 12px; border-radius: 10px; border: 1px solid rgba(215, 166, 255, .28); background: rgba(215, 166, 255, .08); color: #e5ccff; font-size: 12px; }
.banner.warn { border-color: rgba(255, 209, 102, .28); background: rgba(255, 209, 102, .07); color: #ffe4a1; }
@media (max-width: 980px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .nav { grid-template-columns: repeat(3, 1fr); }
  .sidebar-foot { margin-top: 4px; }
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .detail-grid { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .main { padding: 0 14px 40px; }
  .topbar { align-items: start; }
  .kpis { grid-template-columns: 1fr; }
  .line-row { grid-template-columns: 92px minmax(0, 1fr); }
}