/* SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: Apache-2.0
 */

/* Dark theme tuned to roughly match lerobot's visualizer palette. */

:root {
  --bg-0: #07070a;        /* near-black, main background */
  --bg-1: #101218;        /* tile/card surface */
  --bg-2: #161922;        /* hover / elevated surface */
  --border: #20232c;
  --border-strong: #2a2e3a;
  --text-0: #e6e7eb;
  --text-1: #a4a8b4;       /* secondary */
  --text-2: #6c707c;       /* tertiary, muted */
  --accent: #4f46e5;       /* indigo-600, kept subtle */
  --accent-fg: #c7d2fe;
  --success: #34d399;
  --fail: #f87171;
}

html, body { background-color: var(--bg-0); color: var(--text-0); }

/* top nav (Scenes / Tasks / Results) */
.topnav-brand {
  color: var(--text-0);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  cursor: pointer;
}

/* Dancing robot mark.  The body sways side-to-side, the arms wave in
   opposite phase. Subtle so it doesn't pull focus from the nav. */
.ribble-icon {
  color: var(--accent-fg);
  transform-origin: 50% 80%;
  animation: ribble-sway 1.6s ease-in-out infinite;
}
/* Pivot at the shoulder (where each arm meets the body). We use
   `transform-box: fill-box` + a bbox-relative origin instead of raw SVG
   coords because browser interpretation of px values for transform-origin
   on SVG children varies with transform-box defaults.
     Left arm:  line from (5, 17) [hand] to (7.5, 17.5) [shoulder] →
                shoulder = bottom-right of the element's fill-box.
     Right arm: line from (19, 17) [hand] to (16.5, 17.5) [shoulder] →
                shoulder = bottom-left of the element's fill-box. */
.ribble-icon .ribble-arm-l {
  transform-box: fill-box;
  transform-origin: right bottom;
  animation: ribble-arm-l 1.6s ease-in-out infinite;
}
.ribble-icon .ribble-arm-r {
  transform-box: fill-box;
  transform-origin: left bottom;
  animation: ribble-arm-r 1.6s ease-in-out infinite;
}
@keyframes ribble-sway {
  0%, 100% { transform: rotate(-6deg) translateY(0); }
  50%      { transform: rotate( 6deg) translateY(-1px); }
}
@keyframes ribble-arm-l {
  0%, 100% { transform: rotate(-20deg); }
  50%      { transform: rotate( 20deg); }
}
@keyframes ribble-arm-r {
  0%, 100% { transform: rotate( 20deg); }
  50%      { transform: rotate(-20deg); }
}
/* Ribble — JS toggles .ribble-happy on the SVG (via mouseenter/mouseleave on
   the surrounding host). We deliberately avoid CSS :hover here because the
   SVG is stroke-only and direct :hover misses the empty interior; the JS
   path is dead-simple to verify in DevTools (look at the element's class
   list while you hover the icon). */
/* Mouth stays straight at all times — smile path stays hidden. Only the eyes
   swap to happy arcs on hover. */
.ribble-icon .ribble-eyes-default,
.ribble-icon .ribble-eyes-happy { transition: opacity 0.18s ease; }
.ribble-icon .ribble-smile,
.ribble-icon .ribble-eyes-happy { opacity: 0; }
.ribble-icon.ribble-happy .ribble-eyes-default { opacity: 0; }
.ribble-icon.ribble-happy .ribble-eyes-happy { opacity: 1; }
.ribble-icon.ribble-happy {
  /* One-shot bounce when ribble-happy is first applied. After the 0.4s plays
     it ends back at translateY(0) (no fill-mode) so Ribble sits still for
     the rest of the hover. */
  animation: ribble-bounce 0.4s ease-out 1;
  transform: rotate(0deg);
}
@keyframes ribble-bounce {
  0%   { transform: translateY(0) rotate(0deg); }
  45%  { transform: translateY(-4px) rotate(0deg); }
  100% { transform: translateY(0) rotate(0deg); }
}
/* Wave Ribble's right arm (.ribble-arm-l in our class naming — the left side
   of the screen, since the robot faces us). The arm's pivot is right-bottom
   of its bbox so positive (CW) rotations raise the hand overhead. */
.ribble-icon.ribble-happy .ribble-arm-r {
  animation: none;
  transform: rotate(0deg);
}
.ribble-icon.ribble-happy .ribble-arm-l {
  animation: ribble-wave 0.55s ease-in-out infinite;
}
/* scaleX lengthens the arm along its local x-axis (shoulder→hand) before the
   rotation applies, so the hand reaches further out without moving the
   shoulder. Adjust the scale factor to taste. */
@keyframes ribble-wave {
  0%, 100% { transform: rotate(15deg) scaleX(1.2); }
  50%      { transform: rotate(40deg) scaleX(1.2); }
}

/* Ribble host span. Sized to the SVG it wraps; gives JS a reliable
   rectangular hit-area for mouseenter (the bare SVG's hit-area is only the
   strokes, so cursoring into the head/body interior wouldn't fire). */
.ribble-host {
  display: inline-flex;
  line-height: 0;
}

@media (prefers-reduced-motion: reduce) {
  .ribble-icon, .ribble-icon * { animation: none; }
}
.topnav-tab {
  padding: 0.3rem 0.5rem;
  margin-top: 0.25rem;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  color: var(--text-2);
  border-radius: 4px;
  cursor: pointer;
  transition: background 80ms, color 80ms;
}
.topnav-tab.active { color: white; background: rgba(79, 70, 229, 0.25); }

/* ---- Tasks sidebar: combined folder list (active + greyed) ---- */
.task-folder-groups { display: flex; flex-direction: column; gap: 0.6rem; }
.task-folder-group { display: flex; flex-direction: column; gap: 0.15rem; }
.task-folder-group-header {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-2);
  font-family: ui-monospace, monospace;
  padding: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.task-folder-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex; flex-direction: column;
  gap: 1px;
}
.task-folder-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 0.35rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-family: ui-monospace, monospace;
}
.task-folder-row-ok       { background: rgba(79, 70, 229, 0.12); color: var(--text-0); }
.task-folder-row-warn     { background: rgba(217, 119, 6, 0.10); color: var(--text-0); }
.task-folder-row-fail     { background: rgba(248, 113, 113, 0.10); color: var(--text-0); }
.task-folder-row-inactive {
  /* Greyed-out — listed but not currently contributing to the union. Click
     anywhere on the row to re-activate. */
  color: var(--text-2);
  opacity: 0.65;
}
.task-folder-row-inactive:hover {
  background: var(--bg-2);
  opacity: 1;
}
.task-folder-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  min-width: 0;
}
.task-folder-row-right {
  display: inline-flex; align-items: center; gap: 0.3rem;
  flex-shrink: 0;
}
.task-folder-count {
  font-size: 0.7rem;
  color: var(--text-2);
  font-variant-numeric: tabular-nums;
}
.task-folder-warn-icon { color: #d97706; font-size: 0.85rem; }
.task-folder-fail-icon { color: var(--fail);  font-size: 0.85rem; }
.task-folder-x {
  background: transparent;
  border: none;
  color: var(--text-2);
  cursor: pointer;
  padding: 0 0.15rem;
  font-size: 0.95rem;
  line-height: 1;
}
.task-folder-x:hover { color: var(--text-0); }

/* mini bucket cards (clickable filters under Tasks summary) */
.mini-card {
  border-radius: 6px;
  padding: 0.4rem 0.65rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  min-width: 110px;
  cursor: pointer;
  transition: border-color 80ms, background 80ms, transform 80ms;
}
.mini-card:hover { border-color: var(--accent); transform: translateY(-1px); }
.mini-card.active {
  border-color: var(--accent);
  background: rgba(79, 70, 229, 0.18);
}

/* sortable column headers — only the active column shows an arrow. */
.sort-th { cursor: pointer; user-select: none; }
.sort-th:hover { color: var(--text-0); }
.sort-th.active { color: var(--text-0); }
.sort-th .arrow {
  font-size: 0.7em;
  color: var(--accent-fg);
  margin-left: 0.15rem;
}

/* home tile grid */
.home-tile {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  cursor: pointer;
  transition: border-color 100ms, background 100ms;
  display: flex; flex-direction: column;
  gap: 0.5rem;
  min-height: 180px;
}
.home-tile:hover { border-color: var(--accent); background: var(--bg-2); }
.home-tile h3 { font-size: 1.25rem; font-weight: 600; }
.home-tile p { font-size: 0.85rem; color: var(--text-2); line-height: 1.45; }
.home-tile .arrow { color: var(--accent-fg); font-size: 0.85rem; margin-top: auto; }

/* sidebar pane: collapse toggle + drag-to-resize handle */
#sidebar-pane { transition: width 140ms ease; }
#sidebar-pane.is-resizing { transition: none; }
#sidebar-pane.collapsed { width: 32px !important; }
#sidebar-pane.collapsed #sidebar-content,
#sidebar-pane.collapsed #sidebar-resize-handle { display: none; }

#sidebar-toggle {
  position: absolute;
  top: 4px;
  right: 4px;
  z-index: 2;
  width: 28px;
  height: 28px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 4px;
  background: transparent;
  color: var(--text-2);
  font-family: ui-monospace, monospace;
  font-size: 18px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: background 80ms, color 80ms;
}
#sidebar-toggle:hover { background: var(--bg-2); color: var(--text-0); }
#sidebar-pane.collapsed #sidebar-toggle {
  position: static;
  margin: 4px auto 0;
}

#sidebar-resize-handle {
  position: absolute;
  top: 0; bottom: 0; right: -2px;
  width: 6px;
  cursor: col-resize;
  z-index: 3;
  background: transparent;
  transition: background 120ms;
}
#sidebar-resize-handle:hover,
#sidebar-pane.is-resizing #sidebar-resize-handle {
  background: rgba(79, 70, 229, 0.35);
}

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

/* sidebar tree */
.tree-row { cursor: pointer; transition: background-color 80ms ease; }
.tree-row:hover { background-color: var(--bg-2); }
.tree-row.selected {
  background-color: rgba(79, 70, 229, 0.18);  /* accent @ ~18% */
  border-left: 2px solid var(--accent);
}
.tree-row.compared {
  box-shadow: inset 0 0 0 1px rgba(79, 70, 229, 0.45);
}

/* sticky compare bar at top of main pane */
.compare-bar {
  position: sticky; top: 0; z-index: 10;
  margin: 0.75rem 1.5rem 0;
  padding: 0.5rem 0.75rem;
  background: rgba(79, 70, 229, 0.10);
  border: 1px solid rgba(79, 70, 229, 0.5);
  border-radius: 6px;
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.8rem;
  min-width: 0;
  /* When the main pane is narrow, let buttons wrap onto a second line
     instead of bursting past the right edge of the box. */
  flex-wrap: wrap;
}
/* Label text on the left of the compare bar — let it shrink and truncate
   with ellipsis instead of pushing the Combine/Compare/Clear buttons past
   the right edge when the main pane is narrow. */
.compare-bar > span:first-child {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.compare-bar button { flex-shrink: 0; }
.compare-bar button {
  padding: 0.25rem 0.625rem;
  border-radius: 4px;
  background: var(--accent);
  color: white;
  font-weight: 500;
}
.compare-bar button.ghost {
  background: transparent;
  color: var(--text-1);
  border: 1px solid var(--border);
}

/* matrix table for compare report */
.matrix {
  /* fixed layout = column widths declared in CSS are authoritative.
     Width is intentionally NOT 100% — the table sizes to the sum of its
     column widths so per-run columns stay compact instead of soaking up
     a wide container. */
  table-layout: fixed;
}
.matrix th, .matrix td {
  padding: 0.4rem 0.65rem;
  font-size: 0.78rem;
  text-align: left;  /* default; numeric columns override via .cell-num */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.matrix th { color: var(--text-2); font-weight: 500; border-bottom: 1px solid var(--border); }
.matrix tbody tr { border-top: 1px solid var(--border); }
.matrix td.best { color: var(--success); font-weight: 600; }
.matrix td.cell-num,
.matrix th.cell-num {
  text-align: right;
  font-variant-numeric: tabular-nums;
  /* Numeric columns are sized to fit a stacked value + ±half CI line (e.g.
     "29.7%" / "±5.4"). 50px is the empirically-tight estimate (paired with
     a 100px cap on the colspan=2 header below). Bump it if you add wider
     per-cell content later. */
  width: 50px;
}

/* SR/Score value followed by a small CI annotation on the next line */
.val-with-ci {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.15;
}
/* Inside numeric matrix cells, stretch the val-with-ci block to fill the
   cell so the `title` attribute (which carries the full CI range / n) fires
   from anywhere in the cell — not just over the few px of value text. */
.matrix td.cell-num > .val-with-ci {
  display: flex;
  width: 100%;
}
.val-with-ci .val { font-variant-numeric: tabular-nums; }
.val-with-ci .ci {
  font-size: 0.65rem;
  color: var(--text-2);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
/* In the policy cards we want the value left-aligned (under the SR/Score label),
   not right-aligned like in tables. .metric-block is the wrapper that flips it. */
.metric-block .val-with-ci { align-items: flex-start; }
.matrix td.label-col,
.matrix th.label-col {
  /* Label column — fixed at a sensible reading width; long names truncate
     with ellipsis (full text in tooltip via the `title` attribute).
     Targeted via class (not :first-child) because header rows with
     rowspan/colspan mis-identify the first body column under :first-child. */
  width: 240px;
  max-width: 240px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
/* Inner wrapper for label cells: pins the actual rendered width to 240px
   regardless of table-layout:auto column distribution, so every matrix's
   Experiment/Task column has the same width. */
.matrix td.label-col > .label-cell,
.matrix th.label-col > .label-cell {
  display: inline-block;
  width: 240px;
  max-width: 240px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: middle;
}

/* Clickable task names in the per-task matrix — visually hint the link. */
.matrix td.label-col.task-link {
  cursor: pointer;
  color: var(--accent-fg);
}
.matrix td.label-col.task-link:hover {
  text-decoration: underline;
  color: white;
}

/* Paired SR/Score columns per run.  The SR% cell ("pair-start") is the start
   of a run's column-group; we put a faint vertical rule on its left edge to
   separate it from the previous run, and tighten the horizontal padding
   between SR% and Score so the pair reads as one unit. */
.matrix td.pair-start, .matrix th.pair-start {
  border-left: 1px solid var(--border);
  padding-left: 0.7rem;
  padding-right: 0.15rem;
}
/* Header that labels a paired (SR%, Score) column. Capped at the sum of the
   two underlying cell widths (2 × 50px = 100px) so a long experiment ID
   ellipsis-truncates instead of stretching the column pair. Full text via
   `title`. */
.matrix th.pair-start {
  max-width: 100px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.matrix td.pair-end, .matrix th.pair-end {
  padding-left: 0.15rem;
  padding-right: 0.6rem;
}

/* chips */
.chip {
  display: inline-flex; align-items: center;
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.7rem; font-weight: 500;
  background-color: var(--bg-1);
  color: var(--text-1);
  border: 1px solid var(--border);
}
.chip.success { background-color: rgba(52,211,153,0.10); color: var(--success); border-color: rgba(52,211,153,0.35); }
.chip.fail    { background-color: rgba(248,113,113,0.10); color: var(--fail);    border-color: rgba(248,113,113,0.35); }
.chip.accent  { background-color: rgba(79,70,229,0.15);  color: var(--accent-fg); border-color: rgba(79,70,229,0.4); }

/* lerobot-style bar */
.bar {
  height: 6px; border-radius: 3px;
  background: linear-gradient(90deg, var(--success) var(--rate, 0%), var(--border) var(--rate, 0%));
}

/* Combined SR + Score bar — solid green fill up to SR, then a hatched/striped
   overlay from SR up to Score (since score >= SR by construction). The grey
   track from Score → 100% is the bar's own background. Each region has its
   own title for hover-to-see-value. */
.sr-score-bar {
  position: relative;
  height: 8px;
  border-radius: 4px;
  background: var(--border);
  overflow: hidden;
}
.sr-score-bar .stripe {
  position: absolute; left: 0; top: 0; bottom: 0;
  /* Lower layer — gets covered by the solid SR fill in the 0→SR region,
     visible only in the SR→Score region. A flat lighter green reads more
     cleanly than a hatched pattern at 8px tall. */
  background: rgba(52, 211, 153, 0.45);
}
.sr-score-bar .fill {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: var(--success);
}

/* camera tile */
.cam-tile {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  display: flex; flex-direction: column;
}
.cam-tile-label {
  font-family: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, monospace;
  font-size: 11px;
  color: var(--text-1);
  padding: 4px 8px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-0);
  display: flex; align-items: center; gap: 6px;
}
.cam-tile-label .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--text-2);
}
/* Camera tile grid. Two layout modes:
   - Narrow (default): width-bound grid; each video keeps natural aspect, so
     tile heights vary with the mp4 dimensions.
   - Wide (>= 1024px, lerobot-style): all tiles share a fixed height; widths
     follow each video's true aspect, just like the lerobot screenshot.
   No CSS aspect-ratio on <video>, so native fullscreen renders unclamped. */
.cam-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.5rem;
  align-items: start;
}
.cam-tile-video-wrap {
  background: #000;
  min-height: 60px;
  position: relative;
}
.cam-tile-video-wrap video {
  display: block;
  width: 100%;
  height: auto;
}

/* Loading state shown while a video element fetches its first frame.
   .is-loading is set when the element is created and removed on `loadeddata`
   (or `error`, in which case the failure variant is rendered instead). */
.video-host {
  position: relative;
  background: #000;
}
.video-host.is-loading::after {
  content: "Loading…";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-2);
  font-family: ui-monospace, monospace;
  letter-spacing: 0.04em;
  background: rgba(0, 0, 0, 0.5);
  pointer-events: none;
}
.video-host.is-failed::after {
  content: "video failed";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--fail);
  font-family: ui-monospace, monospace;
  background: rgba(0, 0, 0, 0.5);
  pointer-events: none;
}

@media (min-width: 1024px) {
  .cam-grid {
    display: flex;
    flex-wrap: wrap;
  }
  .cam-tile {
    /* shrink to fit the contained video's natural width */
    flex: 0 0 auto;
    max-width: 100%;
  }
  .cam-tile-video-wrap {
    height: 200px;
    min-height: 0;
  }
  .cam-tile-video-wrap video {
    width: auto;
    height: 100%;
    max-width: 100%;
  }
}

/* tabs (lerobot-style underline) */
.tab {
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-2);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color 80ms ease, border-color 80ms ease;
}
.tab:hover { color: var(--text-1); }
.tab.active {
  color: var(--text-0);
  border-bottom-color: var(--accent);
}

/* panel surfaces */
.panel {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 6px;
}

/* "language instruction" header used in episode view */
.lang-label {
  font-family: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-2);
}

/* events timeline strip + scrollable list */
.events-strip {
  position: relative;
  height: 28px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
}
.events-strip-track {
  position: absolute; top: 50%; left: 8px; right: 8px;
  height: 2px;
  background: rgba(120, 128, 150, 0.25);
  transform: translateY(-50%);
}
.events-strip-marker {
  position: absolute; top: 4px; bottom: 4px;
  width: 3px;
  border-radius: 2px;
  background: var(--text-2);
  transform: translateX(-50%);
}
.events-strip-marker.success { background: var(--success); }
.events-strip-marker.failure { background: var(--fail); }
.events-strip-marker.active {
  outline: 2px solid white;
  outline-offset: 1px;
}
.events-strip-playhead {
  position: absolute; top: 0; bottom: 0;
  width: 2px; background: white;
  transform: translateX(-50%);
  pointer-events: none;
}

.events-list {
  max-height: 220px;
  overflow-y: auto;
  font-size: 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
}
.events-row {
  padding: 4px 8px;
  border-top: 1px solid var(--border);
  cursor: pointer;
  display: grid;
  grid-template-columns: 60px 1fr auto;
  align-items: baseline;
  gap: 0.5rem;
}
.events-row:first-child { border-top: none; }
.events-row:hover { background: var(--bg-2); }
.events-row.active {
  background: rgba(79, 70, 229, 0.18);
  border-left: 2px solid var(--accent);
}
.events-row .ev-time {
  font-family: ui-monospace, monospace;
  color: var(--text-2);
  font-size: 11px;
}
.events-row .ev-name {
  font-family: ui-monospace, monospace;
  font-size: 11px;
}
.events-row.success .ev-name { color: var(--success); }
.events-row.failure .ev-name { color: var(--fail); }
.events-row .ev-info {
  color: var(--text-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* table rows */
.tbl-row { border-top: 1px solid var(--border); }
.tbl-row-clickable:hover { background-color: var(--bg-2); }

/* episode card on task view */
.ep-card { transition: border-color 80ms ease; }
.ep-card:hover { border-color: var(--accent) !important; }
.ep-thumb { background: #000; }
.cam-empty { background: #000; color: var(--text-2); }

/* table head — subtle */
table thead { background: var(--bg-0); color: var(--text-2); }
table thead th { padding: 0.5rem 0.75rem; font-weight: 500; }

/* Plotly tweaks for dark */
.plotly .modebar-btn svg path { fill: var(--text-2) !important; }