/* Default (dark) palette. Also applied when [data-theme="dark"] is set. */
:root,
[data-theme="dark"] {
  --bg: #0f1320;
  --panel: #1a2033;
  --panel2: #222a42;
  --text: #e8ecf3;
  --muted: #8a93a6;
  --accent: #4da3ff;
  --accent-hover: #6fb3ff;
  --accent-soft: rgba(77, 163, 255, 0.16);
  /* Text color for solid accent buttons. Kept as a variable so dark/light
     themes pick their own high contrast fg without hardcoding ``color:
     white`` in per component rules. Dark mode uses pure white for legibility
     on the bright accent blue; older builds briefly set this to near-black
     which left some buttons (apply, pick log) unreadable. */
  --btn-fg: #ffffff;
  /* Chat panel docking threshold. Below this viewport width the chat panel
     floats as a right side drawer and overlays the page; at or above it the
     body shifts left by ``--chat-panel-width`` so the charts, briefing and
     chat never overlap. 1100px was picked because the main grid needs
     roughly 680px to keep the 2 column chart layout readable and the chat
     panel itself is 380px, leaving ~40px for the topbar + briefing side
     margins. Above 1400px we still dock (same value, no extra query), so
     only one breakpoint needs updating when the panel width changes. */
  --chat-dock-min: 1100px;
  --chat-panel-width: 380px;
  --accent2: #8be9a8;
  --warn: #ffb454;
  --danger: #ff6b6b;
  --border: #2b3350;
  --chart-grid: #2b3350;
  --chart-tick: #8a93a6;
  /* System memory stack palette (used / cache / buff / slab / free) */
  --mem-used: #ff8a65;
  --mem-cache: #4da3ff;
  --mem-buff: #9fbfff;
  --mem-slab: #8a93a6;
  --mem-free: #8be9a8;
  --mem-avail: #4da3ff;
  --mem-swap-used: #ff8a65;
  --mem-swap-cached: #ffb454;
  --mem-swap-free: #8be9a8;
  /* System CPU stack palette (user / nice / system / irq / softirq /
     steal / guest / iowait / idle). Order matches the stack ordering. */
  --cpu-user: #4da3ff;
  --cpu-nice: #8be9a8;
  --cpu-sys: #ff8a65;
  --cpu-irq: #ffb454;
  --cpu-softirq: #e8b86b;
  --cpu-steal: #b06bff;
  --cpu-guest: #ff6bc5;
  --cpu-wait: #6bd6e8;
  --cpu-idle: #3a4466;
  /* Disk read / write series */
  --dsk-read: #4da3ff;
  --dsk-write: #ff8a65;
}

/* Light palette is applied when an explicit data-theme="light" is set. */
[data-theme="light"] {
  --bg: #f5f6fa;
  --panel: #ffffff;
  --panel2: #eceff6;
  --text: #1a1f2b;
  --muted: #5b6577;
  --accent: #1f6feb;
  --accent-hover: #1b5fd1;
  --accent-soft: rgba(31, 111, 235, 0.12);
  --btn-fg: #ffffff;
  --accent2: #1f9d55;
  --warn: #b27300;
  --danger: #d43f3f;
  --border: #d0d5dd;
  --chart-grid: #d0d5dd;
  --chart-tick: #5b6577;
  --mem-used: #d94f2b;
  --mem-cache: #1f6feb;
  --mem-buff: #6f9bff;
  --mem-slab: #737b8a;
  --mem-free: #1f9d55;
  --mem-avail: #1f6feb;
  --mem-swap-used: #d94f2b;
  --mem-swap-cached: #b27300;
  --mem-swap-free: #1f9d55;
  --cpu-user: #1f6feb;
  --cpu-nice: #1f9d55;
  --cpu-sys: #d94f2b;
  --cpu-irq: #b27300;
  --cpu-softirq: #915a00;
  --cpu-steal: #7a3fa6;
  --cpu-guest: #b42978;
  --cpu-wait: #1a7a8a;
  --cpu-idle: #c7cdd6;
  --dsk-read: #1f6feb;
  --dsk-write: #d94f2b;
}

/* If the user has not picked a theme explicitly, honor the OS preference.
   The JavaScript side also reads prefers-color-scheme on first load but the
   media query keeps pure no-JS rendering reasonable as well. */
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --bg: #f5f6fa;
    --panel: #ffffff;
    --panel2: #eceff6;
    --text: #1a1f2b;
    --muted: #5b6577;
    --accent: #1f6feb;
    --accent-hover: #1b5fd1;
    --accent-soft: rgba(31, 111, 235, 0.12);
    --btn-fg: #ffffff;
    --accent2: #1f9d55;
    --warn: #b27300;
    --danger: #d43f3f;
    --border: #d0d5dd;
    --chart-grid: #d0d5dd;
    --chart-tick: #5b6577;
    --mem-used: #d94f2b;
    --mem-cache: #1f6feb;
    --mem-buff: #6f9bff;
    --mem-slab: #737b8a;
    --mem-free: #1f9d55;
    --mem-avail: #1f6feb;
    --mem-swap-used: #d94f2b;
    --mem-swap-cached: #b27300;
    --mem-swap-free: #1f9d55;
    --cpu-user: #1f6feb;
    --cpu-nice: #1f9d55;
    --cpu-sys: #d94f2b;
    --cpu-irq: #b27300;
    --cpu-softirq: #915a00;
    --cpu-steal: #7a3fa6;
    --cpu-guest: #b42978;
    --cpu-wait: #1a7a8a;
    --cpu-idle: #c7cdd6;
    --dsk-read: #1f6feb;
    --dsk-write: #d94f2b;
  }
}

.disk-device {
  background: var(--panel2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 8px;
  font: inherit;
  font-size: 12px;
  max-width: 180px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  font-size: 14px;
}

.topbar {
  padding: 12px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 12px 20px;
  align-items: center;
  flex-wrap: wrap;
}

.topbar-title {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.topbar h1 {
  margin: 0;
  font-size: 18px;
  color: var(--accent);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.file-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--panel2);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  max-width: 260px;
  overflow: hidden;
}

.file-label span {
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}

.file-label input[type="file"] {
  display: none;
}

button {
  background: var(--accent);
  color: var(--btn-fg);
  border: 0;
  padding: 6px 14px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
}

button:hover {
  background: var(--accent-hover);
}

button[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

button.primary {
  background: var(--accent);
  color: var(--btn-fg);
}

button.linkish {
  background: transparent;
  color: var(--accent);
  padding: 2px 6px;
  font-weight: 500;
  font-size: 12px;
}

button.linkish:hover {
  background: var(--accent-soft);
}

/* Pill toggles (chart unit selectors) */

.pill-group {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  margin-left: 8px;
}

.pill-group .pill {
  background: transparent;
  color: var(--muted);
  border: 0;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 500;
  border-radius: 0;
  cursor: pointer;
}

.pill-group .pill:hover {
  color: var(--text);
  background: var(--accent-soft);
}

.pill-group .pill.active {
  background: var(--accent);
  color: var(--btn-fg);
}

.tz-picker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

#theme-toggle,
.icon-toggle {
  background: var(--panel2);
  color: var(--text);
  border: 1px solid var(--border);
  font-weight: 500;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 4px;
}

#theme-toggle:hover,
.icon-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.icon-toggle[hidden] {
  display: none;
}

.icon-toggle[aria-pressed="true"] {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

.tz-picker select {
  background: var(--panel2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 8px;
  font: inherit;
}

.sysinfo {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.sysinfo strong {
  color: var(--text);
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 11px;
}

/* Modal ---------------------------------------------------------------- */

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal[hidden] {
  display: none;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
}

.modal-panel {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: min(720px, 94vw);
  max-height: 90vh;
  max-height: 90dvh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
  overflow: hidden;
}

.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.modal-head h2 {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.modal-tabs {
  display: flex;
  gap: 4px;
  padding: 8px 16px 0;
  border-bottom: 1px solid var(--border);
  background: var(--panel2);
}

.modal-tabs .tab {
  background: transparent;
  color: var(--muted);
  padding: 8px 14px;
  font-weight: 500;
  border: 1px solid transparent;
  border-bottom: 0;
  border-radius: 6px 6px 0 0;
}

.modal-tabs .tab:hover {
  color: var(--text);
}

.modal-tabs .tab.active {
  background: var(--panel);
  color: var(--text);
  border-color: var(--border);
}

.tab-panel {
  padding: 14px 16px;
  overflow: auto;
  flex: 1;
}

.tab-panel[hidden] {
  display: none;
}

.browser-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.browser-path {
  color: var(--muted);
  font-size: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.browser-body {
  max-height: 50vh;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 4px;
}

.browser-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.browser-table thead th {
  background: var(--panel2);
  position: sticky;
  top: 0;
  padding: 6px 10px;
  text-align: left;
  color: var(--muted);
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}

.browser-table tbody td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.browser-table tbody tr {
  cursor: pointer;
}

.browser-table tbody tr:hover {
  background: var(--accent-soft);
}

.browser-table tbody tr.selected {
  background: var(--accent-soft);
  outline: 1px solid var(--accent);
  outline-offset: -1px;
}

.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 6px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  text-align: center;
  transition: border-color 150ms, background 150ms;
}

.drop-zone.hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--text);
}

.drop-zone p {
  margin: 0;
}

.drop-zone-note {
  max-width: 480px;
}

/* Progress + range ----------------------------------------------------- */

.progress-bar-wrap {
  padding: 8px 20px 10px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.progress-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

.progress-track {
  background: var(--panel2);
  height: 6px;
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill {
  background: var(--accent);
  height: 100%;
  width: 0%;
  transition: width 150ms linear;
}

.progress-fill.error {
  background: var(--danger);
}

.progress-error {
  color: var(--danger);
  font-size: 12px;
  margin-top: 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.progress-detail {
  color: var(--muted);
  font-size: 11px;
  margin-top: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.progress-detail[hidden] {
  display: none;
}

.time-range {
  padding: 8px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}

.time-range label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.range-input {
  background: var(--panel2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 8px;
  font: inherit;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  width: 180px;
}

.range-input.invalid {
  border-color: var(--danger);
}

.range-presets {
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

.range-error {
  color: var(--danger);
}

#range-apply {
  background: var(--accent);
}

.briefing {
  padding: 10px 20px 12px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.briefing[hidden] {
  display: none;
}

.briefing-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.briefing-head h2 {
  margin: 0;
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.briefing-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.briefing-issue {
  background: var(--panel2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.briefing-issue.severity-warning {
  border-left-color: var(--warn);
}

.briefing-issue.severity-critical {
  border-left-color: var(--danger);
}

.briefing-issue .briefing-title {
  font-weight: 600;
  font-size: 13px;
  display: flex;
  gap: 8px;
  align-items: center;
}

.briefing-issue .briefing-title .severity-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 1px 6px;
  border-radius: 3px;
  background: var(--accent);
  color: var(--btn-fg);
  letter-spacing: 0.03em;
}

.briefing-issue.severity-warning .severity-badge {
  background: var(--warn);
}

.briefing-issue.severity-critical .severity-badge {
  background: var(--danger);
  color: #fff;
}

.briefing-issue .briefing-detail {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.briefing-issue .briefing-hint {
  color: var(--muted);
  font-size: 11px;
  font-style: italic;
}

.briefing-empty {
  color: var(--muted);
  font-size: 12px;
  font-style: italic;
}

.briefing-error {
  color: var(--danger);
  font-size: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

main {
  display: grid;
  /* Two row layout: charts on top, processes table below. Rows size to
     their content so the process panel can grow once populated. */
  grid-template-columns: 1fr;
  grid-template-rows: auto auto;
  gap: 12px;
  padding: 12px;
  min-height: calc(100vh - 90px);
  min-height: calc(100dvh - 90px);
}

#charts {
  overflow: visible;
  display: grid;
  /* Narrow default: single column stack. Wider modes below switch to
     5 columns or a 3+2 layout based on the container's inline size, so
     an open chat panel (which shrinks the effective main width) also
     downgrades the layout without a viewport media query. */
  grid-template-columns: 1fr;
  grid-auto-rows: 320px;
  gap: 12px;
  align-content: start;
  container-type: inline-size;
}

/* Mid (>=1100px container width): 6 column track with 3 cards spanning
   2 columns each on row 1 and 2 cards spanning 3 columns each on row 2.
   Yields the 3+2 layout without awkward orphans. */
@container (min-width: 1100px) {
  #charts {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    grid-auto-rows: 300px;
  }
  #charts > .chart-card:nth-child(1),
  #charts > .chart-card:nth-child(2),
  #charts > .chart-card:nth-child(3) {
    grid-column: span 2;
  }
  #charts > .chart-card:nth-child(4),
  #charts > .chart-card:nth-child(5) {
    grid-column: span 3;
  }
}

/* Wide (>=1600px container width): all 5 charts on a single row. The
   later rule wins over the mid mode because container queries cascade
   in source order, so this block must follow the mid one. */
@container (min-width: 1600px) {
  #charts {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    grid-auto-rows: 300px;
  }
  #charts > .chart-card:nth-child(1),
  #charts > .chart-card:nth-child(2),
  #charts > .chart-card:nth-child(3),
  #charts > .chart-card:nth-child(4),
  #charts > .chart-card:nth-child(5) {
    grid-column: auto;
  }
}

.chart-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.chart-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.chart-head-toggles {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.chart-placeholder {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 12px;
  font-style: italic;
  padding: 24px 10px;
  text-align: center;
}

.chart-placeholder[hidden] {
  display: none;
}

.chart-card h2 {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h2[data-tip] {
  cursor: help;
}

h2[data-tip]:hover,
h2[data-tip]:focus {
  color: var(--text);
  outline: none;
}

/* Canvas must live inside a sized wrapper so Chart.js with
   maintainAspectRatio:false does not enter a ResizeObserver loop with the
   flex parent. The wrapper gives it a deterministic height; the canvas
   fills 100% of that box without leaking size back to the grid. */
.chart-canvas-wrap {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
}

.chart-card canvas {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
}

#side {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.panel h2 {
  margin: 0 0 8px;
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.proc-meta {
  color: var(--muted);
  font-size: 11px;
  margin-bottom: 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.proc-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 12px;
}

.table-wrap {
  overflow: auto;
  flex: 1;
  min-height: 0;
  border: 1px solid var(--border);
  border-radius: 4px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

thead th {
  background: var(--panel2);
  position: sticky;
  top: 0;
  padding: 6px 8px;
  text-align: left;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  white-space: nowrap;
}

thead th.sortable {
  cursor: pointer;
  user-select: none;
}

thead th.sortable:hover {
  color: var(--text);
}

thead th .sort-arrow {
  margin-left: 4px;
  color: var(--accent);
  font-size: 10px;
}

thead th.num {
  text-align: right;
}

thead th[data-tip] {
  cursor: help;
}

thead th[data-tip] .th-label {
  border-bottom: 2px dotted var(--muted);
  padding-bottom: 1px;
}

thead th[data-tip]:hover .th-label,
thead th[data-tip]:focus .th-label {
  border-bottom-color: var(--accent);
  color: var(--text);
}

thead th[data-tip]:focus {
  outline: 1px solid var(--accent);
  outline-offset: -1px;
}

.tooltip {
  position: absolute;
  z-index: 200;
  background: var(--panel2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px 10px;
  font-size: 11px;
  font-weight: normal;
  text-transform: none;
  letter-spacing: 0;
  max-width: 320px;
  line-height: 1.4;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  pointer-events: none;
  white-space: normal;
}

.tooltip[hidden] {
  display: none;
}

tbody td {
  padding: 4px 8px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody tr:hover {
  background: var(--accent-soft);
}

tbody td.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

tbody td .raw-hint {
  display: block;
  color: var(--muted);
  font-size: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  opacity: 0.55;
  margin-top: 1px;
}

/* ------------------------------------------------------------------------
   Touch and tap tuning
   ------------------------------------------------------------------------ */

h2[data-tip],
thead th[data-tip] {
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

/* ------------------------------------------------------------------------
   Responsive layout
   ------------------------------------------------------------------------ */

/* Tablet: charts section is already a container-queried grid, so the
   old viewport-based 2 column override is no longer needed. We only
   keep the process table height floor and let ``main`` stay 1fr. */
@media (max-width: 1024px) {
  main {
    height: auto;
    min-height: 0;
  }

  #side {
    min-height: 420px;
  }
}

/* Phone: single column, touch friendly sizing, tables scroll horizontally. */
@media (max-width: 640px) {
  main {
    padding: 8px;
    gap: 8px;
  }

  #charts {
    grid-auto-rows: 260px;
  }

  .topbar {
    padding: 10px 12px;
    gap: 8px 10px;
  }

  .topbar h1 {
    font-size: 16px;
  }

  .topbar-actions {
    flex-wrap: wrap;
    gap: 8px;
    width: 100%;
  }

  .time-range {
    flex-wrap: wrap;
    padding: 8px 12px;
    gap: 6px;
  }

  .time-range label {
    width: 100%;
  }

  .range-input {
    min-width: 0;
    width: 100%;
    box-sizing: border-box;
  }

  .range-presets {
    flex-wrap: wrap;
    gap: 6px;
    width: 100%;
  }

  .chart-head {
    flex-wrap: wrap;
    gap: 6px;
  }

  .chart-card h2 {
    font-size: 12px;
  }

  .pill-group {
    margin-left: 0;
  }

  .pill-group .pill {
    padding: 6px 12px;
    font-size: 12px;
    min-height: 32px;
  }

  button {
    min-height: 36px;
    padding: 6px 12px;
  }

  button.linkish {
    min-height: 32px;
    padding: 6px 10px;
  }

  .modal-panel {
    width: 96vw;
    max-height: calc(100vh - 20px);
    max-height: calc(100dvh - 20px);
  }

  .tab-panel {
    padding: 12px;
  }

  .drop-zone {
    padding: 18px 12px;
  }

  .table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  #proc-table {
    min-width: 640px;
    font-size: 11px;
  }

  #proc-table tbody td,
  #proc-table thead th {
    padding: 5px 6px;
  }

  #proc-table tbody td .raw-hint {
    font-size: 9px;
  }

  .browser-body {
    -webkit-overflow-scrolling: touch;
  }

  .browser-table {
    min-width: 520px;
  }
}

/* Very small phones: trim the title and button paddings a bit more. */
@media (max-width: 380px) {
  .topbar h1 {
    font-size: 14px;
  }

  .pill-group .pill {
    padding: 4px 8px;
    font-size: 11px;
  }

  #proc-table {
    min-width: 560px;
    font-size: 10px;
  }
}

/* Chat panel --------------------------------------------------------------
   Three breakpoints (see the media queries below for the rationale):

   * >=1400px  body margin-right shifts so the panel docks beside the main
                grid and nothing overlaps the briefing card.
   * 768..1399  default; panel is a floating drawer that overlays the
                right edge with a shadow so the user knows it's above.
   * <768      bottom sheet drawer, full width, with the toggle anchored
                at the bottom right.
*/

.chat-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: var(--chat-panel-width);
  background: var(--panel);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 20;
  box-shadow: -4px 0 16px rgba(0, 0, 0, 0.32);
}

.chat-resize-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: -3px;
  width: 6px;
  cursor: col-resize;
  background: transparent;
  z-index: 25;
  touch-action: none;
}

.chat-resize-handle:hover,
.chat-resize-handle.dragging {
  background: var(--accent-soft);
}

body.chat-resizing {
  cursor: col-resize;
  user-select: none;
}

@media (max-width: 767px) {
  .chat-resize-handle {
    display: none;
  }
}

.chat-panel[hidden] {
  display: none;
}

/* Default (768..1399px): the chat panel floats over the page as a right
   side drawer; the underlying grid keeps its full width and is dimmed by
   the drawer shadow. We only shrink the main grid at >=1400px where we
   have enough horizontal space for both the charts and a docked panel
   without the briefing card colliding with the bubbles. */

.chat-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  gap: 8px;
}

.chat-head h2 {
  margin: 0;
  font-size: 14px;
  color: var(--text);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.chat-head-meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.chat-range-badge {
  background: var(--border);
  color: var(--text);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 10px;
  white-space: nowrap;
}

.chat-range-badge.active {
  background: var(--accent);
  color: var(--btn-fg);
}

.chat-log {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chat-empty {
  color: var(--muted);
  font-size: 12px;
  font-style: italic;
  text-align: center;
  padding: 20px 4px;
}

.chat-message {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-width: 90%;
}

.chat-message.user {
  align-self: flex-end;
}

.chat-message.assistant {
  align-self: flex-start;
}

.chat-bubble {
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.5;
  word-wrap: break-word;
  white-space: pre-wrap;
}

.chat-message.user .chat-bubble {
  background: var(--accent);
  color: var(--btn-fg);
}

.chat-message.assistant .chat-bubble {
  background: var(--border);
  color: var(--text);
  /* Markdown rendered bubbles need normal white-space so paragraph and list
     margins collapse; the plain text streaming phase keeps pre-wrap via the
     shared ``.chat-bubble`` rule above. */
  white-space: normal;
}

.chat-message.assistant .chat-bubble p {
  margin: 0 0 8px 0;
}

.chat-message.assistant .chat-bubble p:last-child {
  margin-bottom: 0;
}

.chat-message.assistant .chat-bubble ul,
.chat-message.assistant .chat-bubble ol {
  margin: 4px 0 8px 18px;
  padding: 0;
}

.chat-message.assistant .chat-bubble li {
  margin: 2px 0;
}

.chat-message.assistant .chat-bubble strong {
  color: var(--text);
  font-weight: 700;
}

.chat-message.assistant .chat-bubble em {
  color: var(--muted);
}

.chat-message.assistant .chat-bubble code {
  background: var(--panel2);
  color: var(--accent);
  padding: 1px 5px;
  border-radius: 3px;
  font-family: "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 12px;
}

.chat-message.assistant .chat-bubble pre {
  background: var(--panel2);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 6px;
  overflow-x: auto;
  margin: 6px 0;
  font-size: 12px;
  line-height: 1.45;
}

.chat-message.assistant .chat-bubble pre code {
  background: transparent;
  color: inherit;
  padding: 0;
  font-size: 12px;
}

.chat-message.assistant .chat-bubble a {
  color: var(--accent);
  text-decoration: underline;
}

.chat-message.assistant .chat-bubble h1,
.chat-message.assistant .chat-bubble h2,
.chat-message.assistant .chat-bubble h3 {
  margin: 6px 0 4px 0;
  font-size: 14px;
  font-weight: 700;
}

.chat-message.assistant .chat-bubble blockquote {
  border-left: 3px solid var(--accent);
  margin: 6px 0;
  padding: 2px 10px;
  color: var(--muted);
}

.chat-message.error .chat-bubble {
  background: #5a1f1f;
  color: #ffd6d6;
  font-style: italic;
}

.chat-hint-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--btn-fg);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 8px;
  cursor: pointer;
  margin: 2px 2px;
  border: none;
}

.chat-hint-badge:hover {
  filter: brightness(1.15);
}

.chat-hint-badge-flash {
  animation: chat-hint-flash 700ms ease-out;
}

@keyframes chat-hint-flash {
  0%   { box-shadow: 0 0 0 0 var(--accent-soft), 0 0 0 2px var(--accent); }
  100% { box-shadow: 0 0 0 10px transparent, 0 0 0 0 transparent; }
}

.chat-toast {
  align-self: center;
  max-width: 92%;
  padding: 6px 10px;
  background: var(--accent-soft);
  color: var(--text);
  border: 1px solid var(--accent);
  border-radius: 8px;
  font-size: 11px;
  line-height: 1.4;
  transition: opacity 400ms ease-out;
}

.chat-toast.fade-out {
  opacity: 0;
}

.chat-form {
  border-top: 1px solid var(--border);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* Placeholder assistant bubble rendered immediately after the user sends
   a message. The same DOM node is later populated with the streamed
   answer (see ``swapPlaceholderToAssistant``) so the scroll position
   does not jump. The italic + muted color signals that this is not yet
   the final reply. */
.chat-bubble-thinking {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-style: italic;
}

.chat-bubble-thinking .chat-spinner {
  margin-right: 0;
}

/* Streaming text lives in its own child so token updates don't clobber
   sibling ``.chat-hint-badge`` nodes. display: block lets the markdown
   renderer's <p>/<ul>/<pre> layouts work naturally on finalize. */
.chat-bubble-text {
  display: block;
}

.chat-form textarea {
  resize: vertical;
  min-height: 44px;
  max-height: 160px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 13px;
  font-family: inherit;
}

.chat-form textarea:disabled {
  opacity: 0.6;
}

.chat-form-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.chat-form button {
  background: var(--accent);
  color: var(--btn-fg);
  border: none;
  border-radius: 6px;
  padding: 6px 14px;
  font-weight: 600;
  cursor: pointer;
}

.chat-form button:disabled {
  opacity: 0.5;
  cursor: wait;
}

.chat-spinner {
  display: inline-block;
  width: 10px;
  height: 10px;
  border: 2px solid var(--muted);
  border-top-color: transparent;
  border-radius: 50%;
  animation: chat-spin 0.8s linear infinite;
  vertical-align: middle;
  margin-right: 6px;
}

@keyframes chat-spin {
  to { transform: rotate(360deg); }
}

/* Docked mode (>=768px): shift the whole body left by the panel width so
   the topbar, briefing section, chart grid, and chat never overlap. The
   resizable splitter (see ``.chat-resize-handle``) lets operators widen
   the panel, so even narrower desktops stay usable without an overlay
   drawer (overlapping the briefing / charts was the previous regression
   this replaces). */
@media (min-width: 768px) {
  body[data-chat-open="1"] {
    margin-right: var(--chat-panel-width);
  }
  body[data-chat-open="1"] .chat-panel {
    box-shadow: none;
  }
}

/* Phone (<768px): full width bottom drawer, toggle button anchored to the
   bottom right of the viewport so it stays reachable with a thumb. */
@media (max-width: 767px) {
  .chat-panel {
    width: 100%;
    top: auto;
    height: 70vh;
    height: 70dvh;
    border-left: none;
    border-top: 1px solid var(--border);
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.32);
  }
  body[data-chat-open="1"] main {
    margin-right: 0;
    margin-bottom: 70vh;
    margin-bottom: 70dvh;
  }
}