/* csiscope — flat, sharp, dark.
 *
 * Design rules, matching the project's web and figure contracts:
 *   * tables over cards; radius 0, no shadows
 *   * numbers are monospace and right-aligned, so columns compare by eye
 *   * one accent colour, spent on state that matters (running, invalid, live)
 *   * plot colour lives in plot.js — nothing here paints data
 */

:root {
  --bg:        #070a0e;
  --panel:     #0d1117;
  --panel-2:   #11161d;
  --line:      #1c232c;
  --line-2:    #2a323d;
  --ink:       #e6e9ee;
  --ink-dim:   #98a2b0;
  --muted:     #6b7684;

  --accent:    #35b779;  /* viridis green — the live/ok state */
  --accent-2:  #56b4e9;  /* Okabe-Ito sky — selection */
  --warn:      #e69f00;
  --bad:       #d55e00;

  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font: 13px/1.45 var(--sans);
  overflow: hidden;
}

body {
  display: grid;
  grid-template-rows: auto 1fr auto;
}

/* ------------------------------------------------------------------ topbar */

#topbar {
  display: flex;
  align-items: stretch;
  gap: 0;
  background: var(--panel);
  border-bottom: 1px solid var(--line-2);
  min-height: 44px;
}

.brand {
  display: flex; align-items: center;
  padding: 0 14px;
  font: 600 15px/1 var(--mono);
  letter-spacing: .04em;
  color: var(--muted);
  border-right: 1px solid var(--line);
}
.brand b { color: var(--accent); font-weight: 600; }
.brand { text-decoration: none; }
[hidden] { display: none !important; }
.public-view [data-tab="node"], .public-view #tab-node { display: none !important; }
.public-view #p-capture { display: none; }
.help-tip {
  margin-left: 6px; padding: 0 5px; font: 11px var(--mono);
  border: 1px solid var(--line-2); background: transparent; color: var(--ink-dim);
  cursor: help;
}
.help-tip:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 2px; }
.tip-content {
  display: none; position: fixed; z-index: 100;
  bottom: 42px; right: 18px; max-width: min(470px, calc(100vw - 36px));
  padding: 14px 16px; border: 1px solid var(--accent-2);
  background: var(--panel-2); color: var(--ink); white-space: normal;
  font: 13px/1.55 var(--sans); text-align: left; letter-spacing: normal;
}
.help-tip:hover .tip-content, .help-tip:focus .tip-content { display: block; }
input:disabled, select:disabled { opacity: .65; }
#btn-settings { display: none; }

.tabs { display: flex; border-right: 1px solid var(--line); }
.tabs button {
  background: none; border: 0; border-bottom: 2px solid transparent;
  color: var(--ink-dim); font: 12px var(--sans); letter-spacing: .02em;
  padding: 0 14px; cursor: pointer;
}
.tabs button:hover { color: var(--ink); background: var(--panel-2); }
.tabs button.on { color: var(--ink); border-bottom-color: var(--accent); }

.strip { display: flex; flex: 1; overflow: hidden; }
.tile {
  display: flex; flex-direction: column; justify-content: center;
  padding: 3px 12px; min-width: 78px;
  border-right: 1px solid var(--line);
}
.tile .k { font-size: 9px; letter-spacing: .09em; text-transform: uppercase; color: var(--muted); }
.tile .v { font: 13px/1.2 var(--mono); color: var(--ink); white-space: nowrap; }
.tile.alert .v { color: var(--bad); }
.tile.warn  .v { color: var(--warn); }

.actions { display: flex; align-items: center; gap: 8px; padding: 0 12px; }
.conn {
  font: 10px var(--mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--bad); border: 1px solid currentColor; padding: 2px 6px;
}
.conn.live { color: var(--accent); }
.conn.stale { color: var(--warn); }


/* ------------------------------------------------------------------- shell */

#shell { display: flex; min-height: 0; overflow: hidden; }

#rail {
  width: 232px; flex: none;
  background: var(--panel);
  border-right: 1px solid var(--line-2);
  overflow-y: auto;
  padding-bottom: 20px;
}
body.no-rail #rail { display: none; }

.rail-group { padding: 10px 12px; border-bottom: 1px solid var(--line); }
.rail-group label {
  display: block; margin-bottom: 9px;
  font-size: 10px; letter-spacing: .07em; text-transform: uppercase; color: var(--muted);
}
.rail-group output { float: right; font: 11px var(--mono); color: var(--ink); text-transform: none; }
.rail-group input[type=range] { width: 100%; margin: 3px 0 0; accent-color: var(--accent-2); }
.hint { margin: 4px 0 0; font-size: 10.5px; line-height: 1.4; color: var(--muted); }

main { flex: 1; min-width: 0; overflow: auto; }
.tab { display: none; padding: 12px; }
.tab.on { display: block; }

/* ------------------------------------------------------------------- grid */

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
.panel {
  margin: 0;
  background: var(--panel);
  border: 1px solid var(--line);
  display: flex; flex-direction: column;
  min-width: 0;
  height: 216px;
}
.panel.span2 { grid-column: span 2; }
.panel.tall  { grid-row: span 2; height: 442px; }

/* Two rows, never more: title + live readout, then the standing caption.
   Everything truncates rather than wrapping, so a panel's plot area never
   shrinks because a number got longer. The full text stays in `title`. */
.panel figcaption {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  column-gap: 8px;
  padding: 5px 9px 4px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-2);
}
.panel .title   { font-size: 11.5px; font-weight: 600; letter-spacing: .02em; white-space: nowrap; }
.panel .readout { grid-column: 2; grid-row: 1; justify-self: end;
                  font: 10.5px var(--mono); color: var(--accent-2);
                  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }
.panel .sub     { grid-column: 1 / -1; grid-row: 2; font-size: 10px; color: var(--muted);
                  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.panel canvas { flex: 1 1 0; width: 100%; height: 0; min-height: 0; display: block; }
.panel canvas.legend { flex: none; height: 22px; padding: 0 8px 4px; }
.panel .scroll { flex: 1; overflow: auto; min-height: 0; }

@media (max-width: 1500px) { .grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 1100px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #rail { width: 200px; }
}

/* ------------------------------------------------------------------ tables */

table { width: 100%; border-collapse: collapse; font-size: 11.5px; }
th, td {
  text-align: left; padding: 3px 9px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
th { color: var(--muted); font-weight: 500; font-size: 9.5px; letter-spacing: .08em; text-transform: uppercase; }
td.num, th.num { text-align: right; font-family: var(--mono); }
td.mono { font-family: var(--mono); }
/* Long paths truncate in place in the narrow config column, where the value is
   a filesystem path and the column width is fixed; the full text stays in the
   cell's tooltip. Panel tables are deliberately left alone — capping width
   there collapsed short numeric values like "-1.8 dB" to an ellipsis. */
.col-narrow td.clip {
  overflow: hidden; text-overflow: ellipsis; max-width: 200px;
}
tbody tr:hover { background: var(--panel-2); }
tr.sel { background: #14202b; }
tr.click { cursor: pointer; }

.ok   { color: var(--accent); }
.warn { color: var(--warn); }
.bad  { color: var(--bad); }
.dim  { color: var(--muted); }

.pill {
  font: 9.5px var(--mono); letter-spacing: .06em; text-transform: uppercase;
  border: 1px solid currentColor; padding: 0 4px;
}

/* ------------------------------------------------------------------- forms */

button, select, input, textarea {
  background: var(--panel-2); color: var(--ink);
  border: 1px solid var(--line-2); border-radius: 0;
  font: 11.5px var(--sans); padding: 3px 8px;
}
select, input { width: 100%; font-family: var(--mono); }
button { cursor: pointer; width: auto; }
button:hover { border-color: var(--muted); background: #182029; }
button.wide { width: 100%; margin-top: 4px; }
button.primary { border-color: var(--accent); color: var(--accent); }
button.danger  { border-color: var(--bad); color: var(--bad); }
button.on { background: var(--accent-2); border-color: var(--accent-2); color: #06121b; }
button:disabled { opacity: .4; cursor: not-allowed; }

/* --------------------------------------------------------------- long tabs */

.cols { display: grid; grid-template-columns: 340px minmax(0, 1fr); gap: 14px; }
.col-narrow, .col-wide { min-width: 0; }
h2 { font-size: 12px; letter-spacing: .07em; text-transform: uppercase; color: var(--muted);
     margin: 14px 0 6px; font-weight: 500; }
h2:first-child { margin-top: 0; }
h3 { font-size: 11px; letter-spacing: .07em; text-transform: uppercase; color: var(--muted);
     margin: 14px 0 5px; font-weight: 500; }

.editor-bar { display: flex; gap: 6px; align-items: center; margin-bottom: 6px; }
.editor-bar .spacer, footer .spacer { flex: 1; }
.editor-bar select, .editor-bar input { width: auto; flex: 0 1 220px; }
.path { font: 10.5px var(--mono); color: var(--muted); }

textarea#editor {
  width: 100%; height: 340px;
  font: 12px/1.55 var(--mono);
  background: #05080c; border-color: var(--line-2);
  resize: vertical; white-space: pre;
}

.verdict { margin: 6px 0 0; padding: 6px 9px; font: 11.5px var(--mono);
           border-left: 2px solid var(--line-2); color: var(--muted); }
.verdict.ok  { border-left-color: var(--accent); color: var(--accent); }
.verdict.warn { border-left-color: var(--warn); color: var(--warn); }
.verdict.bad { border-left-color: var(--bad); color: var(--bad); white-space: pre-wrap; }
/* A verdict inside a panel wraps; the editor's does not. */
.panel .verdict { white-space: normal; line-height: 1.45; }
.panel .verdict:empty { display: none; }

.term {
  margin: 0; padding: 8px 10px; max-height: 320px; overflow: auto;
  background: #05080c; border: 1px solid var(--line);
  font: 11px/1.5 var(--mono); color: var(--ink-dim); white-space: pre-wrap;
}

.notes { margin: 6px 0 0; padding-left: 16px; color: var(--muted); font-size: 11px; }
.notes li { margin-bottom: 3px; }

.row-actions { display: flex; gap: 6px; margin-top: 6px; }
.row-actions input { flex: 1; }

/* --------------------------------------------------------------- statusbar */

#statusbar {
  display: flex; gap: 16px; align-items: center;
  padding: 3px 12px;
  background: var(--panel); border-top: 1px solid var(--line-2);
  font: 10.5px var(--mono); color: var(--muted);
}

#toast {
  position: fixed; right: 14px; bottom: 34px; z-index: 40;
  display: flex; flex-direction: column; gap: 6px; align-items: flex-end;
  pointer-events: none;
}
#toast div {
  background: var(--panel-2); border-left: 2px solid var(--accent);
  padding: 6px 12px; font: 11.5px var(--mono); max-width: 460px;
  white-space: pre-wrap;
}
#toast div.bad { border-left-color: var(--bad); color: var(--bad); }

/* ---------------------------------------------------------- presentation */

body.present #topbar .tabs,
body.present #topbar .actions > button,
body.present #topbar .conn,
body.present #rail,
body.present #statusbar { display: none; }
body.present .tab { padding: 8px; }
body.present .panel { height: 300px; }
body.present .panel.tall { min-height: 610px; }
body.present .grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
body.present .panel .title { font-size: 13px; }
body.present .panel .sub { font-size: 11px; }
body.present .tile .v { font-size: 16px; }
body.present .tile { min-width: 104px; }
body.present #topbar { min-height: 54px; }

/* A phone keeps the plots full-width; controls open as a separate drawer. */
@media (max-width: 700px) {
  #topbar { flex-wrap: wrap; }
  .strip { display: none; }
  .brand { padding: 10px; }
  .actions { flex: 1; justify-content: flex-end; padding: 6px; gap: 6px; }
  #btn-present { display: none; }
  #btn-settings { display: inline-block; }
  .tabs { order: 3; width: 100%; height: 32px; }
  #shell { position: relative; }
  #rail { display: none; }
  .controls-open #rail { display: block; position: absolute; inset: 0 auto 0 0;
    width: min(300px, 90vw); z-index: 20; }
  .grid { grid-template-columns: minmax(0, 1fr); }
  .panel.span2 { grid-column: auto; }
  .panel.tall { grid-row: auto; height: 320px; }
  .panel .title { font-size: 12px; }
  #statusbar { overflow: hidden; white-space: nowrap; }
  #statusbar #s-session, #statusbar #s-skip, #statusbar #s-version { display: none; }
}