frontend/css/app.css

/* FlowTwin — Race Control
   A restrained operations console. Dark, high-contrast, tabular numerals,
   almost no chrome: the map and the numbers are the interface. */

:root {
  --bg:            #070910;
  --bg-panel:      #0d111a;
  --bg-panel-2:    #111725;
  --bg-raised:     #161d2c;
  --line:          #1e2637;
  --line-soft:     #172032;

  --text:          #e8edf7;
  --text-dim:      #9aa6bd;
  --text-faint:    #64708a;

  --red:           #e10600;
  --red-soft:      #ff3b30;
  --amber:         #ffa415;
  --yellow:        #ffd400;
  --green:         #12d38a;
  --cyan:          #35c8f5;
  --violet:        #a78bfa;

  --lvl-clear:     #2f9e6a;
  --lvl-busy:      #d7c33a;
  --lvl-warning:   #ff9310;
  --lvl-critical:  #ff3222;

  --radius:        10px;
  --radius-sm:     7px;
  --shadow:        0 18px 40px rgba(0,0,0,.45);

  --rail-l:        304px;
  --rail-r:        392px;
  --header-h:      58px;

  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

/* Several elements below set an explicit `display`, which would otherwise beat
   the user-agent rule for [hidden]. Keep the attribute authoritative. */
[hidden] { display: none !important; }

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

body {
  background-image:
    radial-gradient(1200px 620px at 78% -12%, rgba(225,6,0,.10), transparent 62%),
    radial-gradient(900px 520px at 6% 108%, rgba(53,200,245,.07), transparent 60%);
}

h1, h2, h3, h4 { margin: 0; font-weight: 600; }
p { margin: 0; }
button { font: inherit; color: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; border-radius: 4px; }

.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ───────────────────────────── top bar ───────────────────────────── */

.topbar {
  height: var(--header-h);
  display: flex; align-items: center; gap: 20px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #0c111b, #090d15);
  position: relative; z-index: 40;
}

.brand { display: flex; align-items: center; gap: 11px; padding-right: 18px; border-right: 1px solid var(--line); }
.brand-mark { display: flex; gap: 3px; align-items: flex-end; height: 22px; }
.brand-mark span {
  width: 4px; border-radius: 2px; background: var(--red);
  animation: pulseBar 2.4s ease-in-out infinite;
}
.brand-mark span:nth-child(1) { height: 10px; animation-delay: 0s; }
.brand-mark span:nth-child(2) { height: 18px; animation-delay: .2s; background: #ff5b52; }
.brand-mark span:nth-child(3) { height: 13px; animation-delay: .4s; background: #7d1512; }
@keyframes pulseBar { 0%,100% { opacity: .55; } 50% { opacity: 1; } }

.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 14px; letter-spacing: .16em; }
.brand-text span { font-size: 10px; letter-spacing: .17em; text-transform: uppercase; color: var(--text-faint); }

.scenario-switch { display: flex; gap: 6px; flex: 1; min-width: 0; overflow: hidden; }
.scenario-switch button {
  border: 1px solid var(--line); background: var(--bg-panel);
  border-radius: 999px; padding: 6px 14px;
  font-size: 11.5px; letter-spacing: .04em; color: var(--text-dim);
  white-space: nowrap; transition: .16s ease;
}
.scenario-switch button:hover { color: var(--text); border-color: #2c384f; }
.scenario-switch button[aria-pressed="true"] {
  background: rgba(225,6,0,.14); border-color: rgba(225,6,0,.55); color: #ffd9d7;
}
.scenario-switch button .idx {
  font-family: var(--mono); font-size: 10px; color: var(--text-faint); margin-right: 7px;
}
.scenario-switch button[aria-pressed="true"] .idx { color: var(--red-soft); }

.topbar-right { display: flex; align-items: center; gap: 10px; }

.status-chip {
  display: flex; flex-direction: column; gap: 1px;
  padding: 4px 11px; border: 1px solid var(--line);
  border-radius: var(--radius-sm); background: var(--bg-panel); min-width: 78px;
}
.status-chip label { font-size: 8.5px; letter-spacing: .15em; text-transform: uppercase; color: var(--text-faint); }
.status-chip strong { font-size: 12.5px; font-weight: 600; }
.status-chip.clock strong { font-family: var(--mono); letter-spacing: .02em; }
.status-chip.conn { flex-direction: row; align-items: center; gap: 7px; min-width: 0; }
.status-chip.conn strong { font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--text-dim); font-weight: 500; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--text-faint); }
.dot.live { background: var(--green); box-shadow: 0 0 0 3px rgba(18,211,138,.16); animation: blip 2s ease-in-out infinite; }
.dot.error { background: var(--red-soft); box-shadow: 0 0 0 3px rgba(255,59,48,.18); }
@keyframes blip { 0%,100% { opacity: 1; } 50% { opacity: .45; } }

.transport { display: flex; align-items: center; gap: 8px; }
.btn-icon {
  width: 32px; height: 32px; display: grid; place-items: center;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--bg-panel); transition: .16s ease;
}
.btn-icon:hover { border-color: #33425e; background: var(--bg-raised); }
.btn-icon svg { width: 13px; height: 13px; fill: currentColor; }
#btn-play .ico-pause { display: none; }
#btn-play[data-playing="true"] { background: rgba(225,6,0,.15); border-color: rgba(225,6,0,.5); color: #ffb3af; }
#btn-play[data-playing="true"] .ico-play { display: none; }
#btn-play[data-playing="true"] .ico-pause { display: block; }

.speed-group { display: flex; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; }
.speed-group button {
  border: 0; background: var(--bg-panel); padding: 6px 9px;
  font-family: var(--mono); font-size: 10.5px; color: var(--text-faint);
  border-right: 1px solid var(--line-soft); transition: .14s ease;
}
.speed-group button:last-child { border-right: 0; }
.speed-group button:hover { color: var(--text); }
.speed-group button[aria-pressed="true"] { background: var(--bg-raised); color: var(--cyan); }

/* ───────────────────────────── layout ───────────────────────────── */

.layout {
  height: calc(100vh - var(--header-h));
  display: grid;
  grid-template-columns: var(--rail-l) minmax(0, 1fr) var(--rail-r);
  gap: 12px; padding: 12px;
}

.rail { display: flex; flex-direction: column; gap: 12px; overflow-y: auto; overflow-x: hidden; padding-right: 2px; }
.rail::-webkit-scrollbar, .panel-body::-webkit-scrollbar,
.drawer-col::-webkit-scrollbar, .modal-body::-webkit-scrollbar { width: 8px; }
.rail::-webkit-scrollbar-thumb, .panel-body::-webkit-scrollbar-thumb,
.drawer-col::-webkit-scrollbar-thumb, .modal-body::-webkit-scrollbar-thumb {
  background: #1d2637; border-radius: 4px;
}
.rail::-webkit-scrollbar-track { background: transparent; }

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  flex-shrink: 0;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 9px 13px; border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(255,255,255,.022), transparent);
}
.panel-head h2 { font-size: 10px; letter-spacing: .17em; text-transform: uppercase; color: var(--text-dim); font-weight: 600; }
.panel-body { padding: 13px; }
.panel-body.tight { padding: 8px; }

.tag {
  font-family: var(--mono); font-size: 9.5px; letter-spacing: .09em; text-transform: uppercase;
  padding: 2.5px 8px; border-radius: 999px;
  background: var(--bg-raised); color: var(--text-faint); border: 1px solid var(--line);
}
.tag.warn { background: rgba(255,164,21,.12); color: var(--amber); border-color: rgba(255,164,21,.3); }
.tag.live { background: rgba(18,211,138,.12); color: var(--green); border-color: rgba(18,211,138,.3); }
.tag.busy { background: rgba(53,200,245,.12); color: var(--cyan); border-color: rgba(53,200,245,.3); }

/* left rail content */

.scenario-name { font-size: 14.5px; letter-spacing: -.01em; margin-bottom: 4px; }
.scenario-headline { color: var(--text-dim); font-size: 12px; margin-bottom: 10px; }
.briefing { list-style: none; margin: 0 0 12px; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.briefing li {
  font-size: 11.5px; color: var(--text-dim);
  padding-left: 13px; position: relative; line-height: 1.4;
}
.briefing li::before {
  content: ""; position: absolute; left: 0; top: 6.5px;
  width: 5px; height: 5px; border-radius: 1px; background: var(--line);
  transform: rotate(45deg);
}
.briefing li.fact::before { background: var(--cyan); }
.briefing li.assume::before { background: var(--violet); }

.kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; margin: 0; padding-top: 10px; border-top: 1px solid var(--line-soft); }
.kv dt { font-size: 10px; letter-spacing: .09em; text-transform: uppercase; color: var(--text-faint); }
.kv dd { margin: 0; font-family: var(--mono); font-size: 11.5px; text-align: right; }

.field { margin-bottom: 12px; }
.field label {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 10px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-faint); margin-bottom: 5px;
}
.field output { font-family: var(--mono); font-size: 11.5px; color: var(--cyan); letter-spacing: 0; text-transform: none; }

input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 4px; border-radius: 2px; background: var(--bg-raised); outline: none; }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%;
  background: var(--text); border: 3px solid var(--bg-panel);
  box-shadow: 0 0 0 1px var(--line); cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%; background: var(--text);
  border: 3px solid var(--bg-panel); box-shadow: 0 0 0 1px var(--line); cursor: pointer;
}

input[type="number"], select {
  width: 100%; background: var(--bg-raised); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 6px 9px; color: var(--text);
  font-family: var(--mono); font-size: 11.5px;
}
select { font-family: var(--sans); }
.seed-row { display: flex; gap: 6px; }
.seed-row input { flex: 1; }
.seed-row .btn-ghost { width: 32px; padding: 0; }

.btn-primary {
  border: 1px solid rgba(225,6,0,.55); border-radius: var(--radius-sm);
  background: linear-gradient(180deg, #d5211c, #a91310);
  color: #fff; padding: 9px 14px; font-size: 11.5px; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase; transition: .16s ease;
}
.btn-primary:hover:not(:disabled) { filter: brightness(1.14); }
.btn-primary:disabled { opacity: .45; cursor: not-allowed; }
.btn-ghost {
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--bg-raised); color: var(--text-dim);
  padding: 7px 12px; font-size: 11px; transition: .16s ease;
}
.btn-ghost:hover { color: var(--text); border-color: #2e3a52; }
.btn-ghost.sm, .btn-primary.sm { padding: 4px 9px; font-size: 10px; }
.block { display: block; width: 100%; }
.hint { font-size: 10.5px; color: var(--text-faint); margin-top: 8px; line-height: 1.45; }

.timeline { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.timeline li { display: flex; gap: 10px; padding: 7px 0; position: relative; }
.timeline li + li { border-top: 1px solid var(--line-soft); }
.timeline .t { font-family: var(--mono); font-size: 11px; color: var(--text-faint); min-width: 46px; }
.timeline .body { flex: 1; }
.timeline .label { font-size: 11.5px; }
.timeline .detail { font-size: 10.5px; color: var(--text-faint); margin-top: 2px; line-height: 1.4; }
.timeline li.fired .label { color: var(--text); }
.timeline li.fired .t { color: var(--red-soft); }
.timeline li.pending { opacity: .55; }
.timeline li.sev-critical .label::before,
.timeline li.sev-warning .label::before { content: "▲ "; color: var(--amber); font-size: 9px; }
.timeline li.sev-critical .label::before { color: var(--red-soft); }

.prov-group + .prov-group { margin-top: 12px; }
.prov-group h4 { margin-bottom: 6px; }
.pill {
  font-size: 9px; letter-spacing: .14em; text-transform: uppercase;
  padding: 2px 8px; border-radius: 999px; font-weight: 600;
}
.pill.fact { background: rgba(53,200,245,.13); color: var(--cyan); border: 1px solid rgba(53,200,245,.3); }
.pill.assume { background: rgba(167,139,250,.13); color: var(--violet); border: 1px solid rgba(167,139,250,.3); }
.prov-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.prov-list li { font-size: 11px; line-height: 1.45; padding-left: 10px; border-left: 2px solid var(--line); }
.prov-list li strong { display: block; color: var(--text); font-weight: 500; }
.prov-list li span { color: var(--text-faint); }
.prov-list li cite { display: block; color: var(--text-faint); font-style: normal; font-size: 10px; margin-top: 2px; }
.disclaimer {
  font-size: 10.5px; line-height: 1.5; color: var(--amber);
  background: rgba(255,164,21,.07); border: 1px solid rgba(255,164,21,.2);
  border-radius: var(--radius-sm); padding: 8px 10px; margin-bottom: 12px;
}

/* ───────────────────────────── stage / map ───────────────────────────── */

.stage { display: flex; flex-direction: column; gap: 12px; min-width: 0; min-height: 0; }

.map-shell {
  position: relative; flex: 1; min-height: 0;
  background:
    radial-gradient(1000px 700px at 50% 42%, #0e1523, #070a11 74%);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
#map { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

.map-overlay { position: absolute; z-index: 3; pointer-events: none; }
.map-title { top: 14px; left: 16px; display: flex; flex-direction: column; }
.map-title strong { font-size: 15px; letter-spacing: .015em; }
.map-title span { font-size: 10.5px; color: var(--text-faint); letter-spacing: .04em; }

.map-layers { top: 12px; right: 12px; display: flex; flex-wrap: wrap; gap: 5px; justify-content: flex-end; max-width: 60%; pointer-events: auto; }
.map-layers button {
  border: 1px solid var(--line); background: rgba(10,14,22,.86); backdrop-filter: blur(6px);
  border-radius: 999px; padding: 4px 10px; font-size: 10px; letter-spacing: .06em;
  color: var(--text-faint); transition: .15s ease;
}
.map-layers button[aria-pressed="true"] { color: var(--text); border-color: #33425e; background: rgba(28,38,56,.9); }
.map-layers button .sw { display: inline-block; width: 7px; height: 7px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }

.map-legend { bottom: 14px; left: 16px; }
.legend-row { display: flex; gap: 2px; margin-bottom: 5px; }
.legend-row i { width: 42px; height: 6px; display: block; position: relative; }
.legend-row i:first-child { border-radius: 3px 0 0 3px; }
.legend-row i:last-child { border-radius: 0 3px 3px 0; }
.legend-row i b {
  position: absolute; top: 9px; left: 0; font-family: var(--mono);
  font-size: 9px; font-weight: 400; color: var(--text-faint);
}
.legend-note { font-size: 9.5px; color: var(--text-faint); letter-spacing: .07em; text-transform: uppercase; margin-top: 12px; }

.map-scale { bottom: 16px; right: 16px; display: flex; flex-direction: column; align-items: flex-end; gap: 3px; }
.map-scale span { display: block; height: 5px; border: 1px solid var(--text-faint); border-top: 0; }
.map-scale label { font-family: var(--mono); font-size: 9.5px; color: var(--text-faint); }

.tooltip {
  position: absolute; z-index: 12; pointer-events: none;
  background: rgba(9,13,21,.97); border: 1px solid #2a3549;
  border-radius: var(--radius-sm); padding: 9px 11px; min-width: 190px;
  box-shadow: var(--shadow); font-size: 11px;
}
.tooltip h5 { font-size: 11.5px; margin: 0 0 6px; letter-spacing: .01em; }
.tooltip .trow { display: flex; justify-content: space-between; gap: 16px; padding: 1.5px 0; color: var(--text-dim); }
.tooltip .trow b { font-family: var(--mono); color: var(--text); font-weight: 500; }
.tooltip .tsep { height: 1px; background: var(--line); margin: 6px 0; }

.map-empty {
  position: absolute; inset: 0; z-index: 5; display: grid; place-content: center;
  text-align: center; gap: 6px; background: rgba(7,9,16,.72); backdrop-filter: blur(3px);
}
.map-empty h3 { font-size: 15px; }
.map-empty p { color: var(--text-faint); font-size: 12px; }

.map-flash {
  position: absolute; inset: 0; z-index: 6; pointer-events: none;
  display: grid; place-items: center;
}
.map-flash div {
  border: 1px solid rgba(255,50,34,.55); background: rgba(30,8,8,.9);
  border-radius: var(--radius); padding: 14px 26px; text-align: center;
  box-shadow: 0 0 40px rgba(255,50,34,.22);
  animation: flashIn .35s ease-out, flashOut .5s ease-in 3.1s forwards;
}
.map-flash strong { display: block; font-size: 13px; letter-spacing: .13em; text-transform: uppercase; color: #ff6a5e; }
.map-flash span { font-size: 11.5px; color: var(--text-dim); }
@keyframes flashIn { from { opacity: 0; transform: translateY(-8px) scale(.97); } }
@keyframes flashOut { to { opacity: 0; } }

/* metrics strip */

.metrics-strip {
  display: grid; grid-auto-flow: column; grid-auto-columns: 1fr;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--bg-panel); overflow: hidden; flex-shrink: 0;
}
.metric { padding: 9px 14px; border-right: 1px solid var(--line-soft); min-width: 0; }
.metric:last-child { border-right: 0; }
.metric label {
  display: block; font-size: 8.5px; letter-spacing: .15em; text-transform: uppercase;
  color: var(--text-faint); margin-bottom: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.metric .val { font-family: var(--mono); font-size: 17px; font-weight: 500; letter-spacing: -.02em; line-height: 1.1; }
.metric .sub { font-size: 9.5px; color: var(--text-faint); font-family: var(--mono); }
.metric.is-warning .val { color: var(--amber); }
.metric.is-critical .val { color: var(--red-soft); }
.metric.is-good .val { color: var(--green); }

/* ───────────────────────────── alerts ───────────────────────────── */

.alerts-panel .panel-body { max-height: 246px; overflow-y: auto; }
.alert {
  border: 1px solid var(--line); border-left-width: 3px;
  border-radius: var(--radius-sm); padding: 9px 11px; margin-bottom: 7px;
  background: var(--bg-panel-2); cursor: pointer; transition: .15s ease;
}
.alert:last-child { margin-bottom: 0; }
.alert:hover { background: var(--bg-raised); }
.alert.critical { border-left-color: var(--red-soft); background: rgba(255,50,34,.055); }
.alert.warning  { border-left-color: var(--amber); background: rgba(255,164,21,.05); }
.alert.watch    { border-left-color: var(--text-faint); }
.alert-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 3px; }
.alert-sev {
  font-family: var(--mono); font-size: 9px; letter-spacing: .16em; text-transform: uppercase; font-weight: 600;
}
.alert.critical .alert-sev { color: var(--red-soft); }
.alert.warning  .alert-sev { color: var(--amber); }
.alert.watch    .alert-sev { color: var(--text-faint); }
.alert-ttc { font-family: var(--mono); font-size: 11px; color: var(--text); }
.alert-name { font-size: 12.5px; font-weight: 500; margin-bottom: 2px; }
.alert-detail { font-size: 11px; color: var(--text-dim); }
.alert-causes { list-style: none; margin: 6px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px; }
.alert-causes li {
  font-size: 9.5px; color: var(--text-faint); background: rgba(255,255,255,.035);
  border: 1px solid var(--line-soft); border-radius: 999px; padding: 1.5px 7px;
}
.alert.critical { animation: alertIn .3s ease-out; }
@keyframes alertIn { from { opacity: 0; transform: translateX(10px); } }

.empty { color: var(--text-faint); font-size: 11.5px; text-align: center; padding: 14px 0; }

/* prediction */

.pred-row { padding: 7px 6px; border-bottom: 1px solid var(--line-soft); }
.pred-row:last-of-type { border-bottom: 0; }
.pred-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 5px; }
.pred-name { font-size: 11.5px; }
.pred-ttc { font-family: var(--mono); font-size: 10.5px; color: var(--amber); white-space: nowrap; }
.pred-ttc.safe { color: var(--text-faint); }
.pred-track { display: flex; gap: 3px; align-items: flex-end; height: 30px; }
.pred-cell { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px; }
.pred-cell i { display: block; width: 100%; border-radius: 2px 2px 0 0; min-height: 2px; transition: height .3s ease, background .3s ease; }
.pred-cell b { font-family: var(--mono); font-size: 8.5px; font-weight: 400; color: var(--text-faint); }
.pred-cell.now b { color: var(--text-dim); }

/* strategy */

#recommendation-card:empty { display: none; }
.rec-card {
  margin-top: 12px; border: 1px solid rgba(18,211,138,.32);
  background: linear-gradient(180deg, rgba(18,211,138,.09), rgba(18,211,138,.02));
  border-radius: var(--radius-sm); padding: 11px 12px;
  animation: alertIn .3s ease-out;
}
.rec-card .rec-label { font-size: 9px; letter-spacing: .17em; text-transform: uppercase; color: var(--green); margin-bottom: 4px; }
.rec-card h4 { font-size: 14px; margin-bottom: 3px; }
.rec-card .rec-instr { font-size: 11px; color: var(--text-dim); margin-bottom: 9px; }
.rec-card ul { list-style: none; margin: 0 0 10px; padding: 0; display: flex; flex-direction: column; gap: 3px; }
.rec-card ul li { font-size: 11px; color: var(--text-dim); display: flex; gap: 6px; }
.rec-card ul li::before { content: "▸"; color: var(--green); }
.rec-card ul li.cost::before { content: "▸"; color: var(--amber); }
.rec-actions { display: flex; gap: 6px; }
.rec-actions .btn-primary { flex: 1; }

.applied-banner {
  margin-top: 10px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 9px 11px; background: var(--bg-panel-2);
}
.applied-banner .rec-label { color: var(--cyan); }

/* ───────────────────────────── drawer ───────────────────────────── */

.drawer {
  position: fixed; left: 12px; right: 12px; bottom: 0; z-index: 30;
  background: var(--bg-panel); border: 1px solid var(--line);
  border-bottom: 0; border-radius: var(--radius) var(--radius) 0 0;
  box-shadow: var(--shadow); max-height: 62vh; display: flex; flex-direction: column;
  animation: drawerUp .28s cubic-bezier(.22,.8,.3,1);
}
@keyframes drawerUp { from { transform: translateY(24px); opacity: 0; } }
.drawer-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 16px; border-bottom: 1px solid var(--line-soft);
}
.drawer-head h2 { font-size: 11px; letter-spacing: .17em; text-transform: uppercase; color: var(--text-dim); }
.drawer-head p { font-size: 11px; color: var(--text-faint); margin-top: 2px; }
.drawer-body {
  display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, .95fr) minmax(0, .8fr);
  gap: 0; overflow: hidden; min-height: 0;
}
.drawer-col { padding: 12px 16px; overflow-y: auto; border-right: 1px solid var(--line-soft); min-width: 0; }
.drawer-col:last-child { border-right: 0; }
.drawer-col h3 { font-size: 10px; letter-spacing: .15em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 9px; }

.strategy-table { width: 100%; border-collapse: collapse; font-size: 11.5px; }
.strategy-table th {
  text-align: right; font-size: 9px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--text-faint); font-weight: 500; padding: 0 8px 7px; white-space: nowrap;
  border-bottom: 1px solid var(--line);
}
.strategy-table th:first-child { text-align: left; }
.strategy-table td { padding: 7px 8px; text-align: right; font-family: var(--mono); border-bottom: 1px solid var(--line-soft); }
.strategy-table td:first-child { text-align: left; font-family: var(--sans); }
.strategy-table tr:last-child td { border-bottom: 0; }
.strategy-table tbody tr { cursor: pointer; transition: background .14s ease; }
.strategy-table tbody tr:hover { background: rgba(255,255,255,.028); }
.strategy-table tr.recommended { background: rgba(18,211,138,.075); }
.strategy-table tr.recommended td { border-color: rgba(18,211,138,.18); }
.strategy-table tr.baseline td:first-child { color: var(--text-faint); }
.strategy-table tr.selected { outline: 1px solid var(--cyan); outline-offset: -1px; }
.st-name { display: flex; align-items: center; gap: 7px; }
.st-star { color: var(--green); font-size: 11px; }
.st-family { font-size: 9px; letter-spacing: .1em; text-transform: uppercase; color: var(--text-faint); }
.delta { font-size: 9.5px; display: block; }
.delta.good { color: var(--green); }
.delta.bad { color: var(--amber); }
.delta.flat { color: var(--text-faint); }
.table-note { font-size: 10px; color: var(--text-faint); margin-top: 10px; line-height: 1.5; }

.why-block { margin-bottom: 12px; }
.why-block .k { font-size: 9px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 3px; }
.why-block .v { font-size: 13px; }
.why-block .v.big { font-size: 16px; font-family: var(--mono); }
.why-reasons { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 5px; }
.why-reasons li { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: baseline; font-size: 11.5px; }
.why-reasons .metric-name { color: var(--text-dim); }
.why-reasons .metric-val { font-family: var(--mono); }
.why-reasons .metric-val .arrow { margin-right: 4px; }
.why-reasons li.good .metric-val { color: var(--green); }
.why-reasons li.bad .metric-val { color: var(--amber); }
.why-method { font-size: 10px; color: var(--text-faint); line-height: 1.5; margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--line-soft); }

#strategy-chart { width: 100%; height: 156px; display: block; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 4px 10px; margin-top: 8px; }
.chart-legend span { font-size: 10px; color: var(--text-faint); display: flex; align-items: center; gap: 5px; }
.chart-legend i { width: 12px; height: 2px; border-radius: 1px; }

/* ───────────────────────────── modal / toast ───────────────────────────── */

.modal-backdrop {
  position: fixed; inset: 0; z-index: 60; display: grid; place-items: center;
  background: rgba(4,6,11,.74); backdrop-filter: blur(4px); padding: 24px;
}
.modal-card {
  background: var(--bg-panel); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); width: min(760px, 100%); max-height: 82vh; display: flex; flex-direction: column;
}
.modal-card header { display: flex; align-items: center; justify-content: space-between; padding: 13px 16px; border-bottom: 1px solid var(--line-soft); }
.modal-card header h2 { font-size: 13px; letter-spacing: .04em; }
.modal-body { padding: 16px; overflow-y: auto; font-size: 12px; line-height: 1.6; color: var(--text-dim); }
.modal-body h3 { font-size: 11px; letter-spacing: .13em; text-transform: uppercase; color: var(--text-faint); margin: 16px 0 7px; }
.modal-body h3:first-child { margin-top: 0; }
.modal-body table { width: 100%; border-collapse: collapse; font-size: 11.5px; margin-top: 6px; }
.modal-body th { text-align: right; font-size: 9px; letter-spacing: .11em; text-transform: uppercase; color: var(--text-faint); font-weight: 500; padding: 0 8px 6px; border-bottom: 1px solid var(--line); }
.modal-body th:first-child { text-align: left; }
.modal-body td { padding: 6px 8px; text-align: right; font-family: var(--mono); border-bottom: 1px solid var(--line-soft); color: var(--text); }
.modal-body td:first-child { text-align: left; font-family: var(--sans); color: var(--text-dim); }
.modal-body code { font-family: var(--mono); font-size: 11px; background: var(--bg-raised); padding: 1px 5px; border-radius: 4px; color: var(--cyan); }

.toasts { position: fixed; right: 16px; bottom: 16px; z-index: 70; display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }
.toast {
  background: var(--bg-raised); border: 1px solid var(--line); border-left: 3px solid var(--cyan);
  border-radius: var(--radius-sm); padding: 9px 13px; font-size: 11.5px; box-shadow: var(--shadow);
  animation: toastIn .25s ease-out; max-width: 340px;
}
.toast.error { border-left-color: var(--red-soft); }
.toast.ok { border-left-color: var(--green); }
@keyframes toastIn { from { opacity: 0; transform: translateY(8px); } }

.spinner {
  display: inline-block; width: 11px; height: 11px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,.22); border-top-color: #fff;
  animation: spin .7s linear infinite; vertical-align: -1px; margin-right: 7px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.skeleton {
  background: linear-gradient(90deg, var(--bg-raised) 25%, #1b2434 50%, var(--bg-raised) 75%);
  background-size: 200% 100%; animation: shimmer 1.3s linear infinite; border-radius: 4px;
}
@keyframes shimmer { to { background-position: -200% 0; } }

/* ───────────────────────────── responsive ───────────────────────────── */

@media (max-width: 1500px) {
  :root { --rail-l: 268px; --rail-r: 348px; }
}
@media (max-width: 1240px) {
  .layout { grid-template-columns: 240px minmax(0, 1fr); grid-template-rows: minmax(0,1fr) auto; }
  .rail-right { grid-column: 1 / -1; flex-direction: row; max-height: 260px; }
  .rail-right .panel { flex: 1; min-width: 0; }
  .drawer-body { grid-template-columns: minmax(0, 1fr); }
  .drawer-col { border-right: 0; border-bottom: 1px solid var(--line-soft); }
}
@media (max-width: 900px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .rail-left { flex-direction: row; max-height: 220px; }
  .rail-left .panel { flex: 1; min-width: 240px; }
  .scenario-switch { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

.pred-ttc[data-trend="rising"] { color: var(--amber); }


/* ── perception modal ──────────────────────────────────────────────── */

.ascii {
  font-family: var(--mono); font-size: 10.5px; line-height: 1.6; color: var(--text-faint);
  background: var(--bg-raised); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 11px 13px; margin: 12px 0; overflow-x: auto;
}
.perc-state {
  border: 1px solid var(--line); border-left-width: 3px; border-radius: var(--radius-sm);
  padding: 11px 13px; margin: 12px 0; background: var(--bg-panel-2);
}
.perc-state.ok { border-left-color: var(--green); }
.perc-state.bad { border-left-color: var(--amber); }
.perc-state .k { font-size: 9px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-faint); }
.perc-state .v { font-size: 13px; color: var(--text); font-family: var(--mono); margin-top: 2px; }
.perc-state .v.big { font-size: 20px; }
.perc-state p { margin-top: 6px; font-size: 11px; }
.perc-state p.muted { color: var(--text-faint); }
.perc-form { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 10px 0; }
.perc-form input[type="file"] { flex: 1; min-width: 180px; font-size: 11px; color: var(--text-dim); }
.perc-form input[type="number"] { width: 190px; }
.perc-chain { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-direction: column; gap: 9px; }
.perc-chain li { border-left: 2px solid var(--line); padding-left: 10px; font-size: 11px; }
.perc-chain li strong { display: block; font-family: var(--mono); color: var(--cyan); font-weight: 400; }
.perc-chain li span { display: block; color: var(--text-dim); }
.perc-chain li span.muted { color: var(--text-faint); margin-top: 2px; }