/* ============================================================================
   web3astra — observatory console
   Dark, instrument-like UI: near-black sky, hairline panels, cyan readouts.
   All motion is opt-out under prefers-reduced-motion.
   ========================================================================== */

/* ---------------------------------------------------------------- tokens -- */
:root {
  /* surfaces */
  --sky-0: #04070d;
  --sky-1: #070c15;
  --panel: rgba(15, 24, 36, 0.58);
  --panel-solid: #0b1420;
  --panel-hi: rgba(94, 234, 212, 0.05);
  --field: rgba(4, 9, 16, 0.72);
  --field-hover: rgba(8, 16, 26, 0.85);

  /* hairlines */
  --line-0: rgba(148, 190, 205, 0.07);
  --line-1: rgba(148, 190, 205, 0.13);
  --line-2: rgba(148, 190, 205, 0.24);

  /* ink */
  --ink-0: #e9f1f5;
  --ink-1: #a6b8c4;
  --ink-2: #7d8f9c;
  --ink-3: #5b6b78;

  /* accents */
  --accent: #5eead4;
  --accent-dim: #35b8a6;
  --accent-deep: #0d4a45;
  --accent-ink: #04140f;
  --accent-soft: rgba(94, 234, 212, 0.12);
  --accent-line: rgba(94, 234, 212, 0.34);
  --warn: #f0b357;
  --warn-soft: rgba(240, 179, 87, 0.12);
  --danger: #ff8080;
  --danger-soft: rgba(255, 128, 128, 0.12);

  /* type */
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", "JetBrains Mono", Menlo,
          Consolas, "Liberation Mono", monospace;

  --fs-2xs: 10px;
  --fs-xs: 11px;
  --fs-sm: 12px;
  --fs-md: 13px;
  --fs-lg: 15px;
  --fs-xl: 19px;

  /* geometry */
  --r-sm: 5px;
  --r-md: 8px;
  --r-lg: 12px;
  --rail-w: 352px;
  --gap: 14px;
  --pad: 15px;

  --dur: 150ms;
  --dur-slow: 190ms;
  --ease: cubic-bezier(0.32, 0.72, 0.28, 1);

  color-scheme: dark;
}

/* ------------------------------------------------------------------ base -- */
*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--sky-0);
  color: var(--ink-0);
  font-family: var(--sans);
  font-size: var(--fs-md);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: 0.01em; }
p { margin: 0; }
button, input, select, output { font: inherit; color: inherit; }
svg { display: block; }

.mono, .readout b, output {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1, "zero" 1;
}

.muted { color: var(--ink-3); }
.link { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.sep { color: var(--ink-3); }

.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* sky: radial glow + faint engineering grid */
.sky-glow {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(115% 80% at 50% -12%, rgba(60, 130, 150, 0.15) 0%, rgba(60, 130, 150, 0) 58%),
    radial-gradient(80% 60% at 12% 8%, rgba(94, 234, 212, 0.05) 0%, rgba(94, 234, 212, 0) 60%),
    radial-gradient(90% 70% at 88% 96%, rgba(70, 90, 150, 0.09) 0%, rgba(70, 90, 150, 0) 62%),
    linear-gradient(180deg, var(--sky-1) 0%, var(--sky-0) 46%, #03060a 100%);
  pointer-events: none;
}

.sky-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    linear-gradient(rgba(148, 190, 205, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 190, 205, 0.028) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 0%, transparent 78%);
}

/* focus */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}
:focus:not(:focus-visible) { outline: none; }

.skip-link {
  position: fixed;
  top: 8px; left: 8px;
  z-index: 100;
  padding: 8px 12px;
  background: var(--panel-solid);
  border: 1px solid var(--accent-line);
  border-radius: var(--r-sm);
  color: var(--accent);
  font-size: var(--fs-sm);
  transform: translateY(-200%);
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus { transform: translateY(0); }

/* --------------------------------------------------------------- topbar -- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 18px;
  border-bottom: 1px solid var(--line-0);
  background: linear-gradient(180deg, rgba(10, 17, 26, 0.72), rgba(10, 17, 26, 0.28));
  backdrop-filter: blur(10px) saturate(115%);
  -webkit-backdrop-filter: blur(10px) saturate(115%);
}

.brand { display: flex; align-items: center; gap: 11px; }
.brand-mark { width: 26px; height: 26px; color: var(--accent); }
.brand-text h1 {
  font-size: var(--fs-lg);
  letter-spacing: 0.06em;
  font-weight: 600;
}
.brand-text h1::first-letter { color: var(--accent); }
.brand-text p {
  font-size: var(--fs-2xs);
  color: var(--ink-3);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-top: -1px;
}

.topbar-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: var(--fs-xs);
  white-space: nowrap;
}
.chip-ghost {
  border: 1px solid var(--line-1);
  background: rgba(8, 14, 22, 0.5);
  color: var(--ink-1);
}
.dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ink-3);
  flex: none;
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.dot.is-ok { background: var(--accent); box-shadow: 0 0 0 3px rgba(94, 234, 212, 0.13); }
.dot.is-warn { background: var(--warn); box-shadow: 0 0 0 3px rgba(240, 179, 87, 0.13); }
.dot.is-bad { background: var(--danger); box-shadow: 0 0 0 3px rgba(255, 128, 128, 0.13); }
.dot.is-busy { background: var(--warn); animation: pulse 1.1s ease-in-out infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.32; }
}

/* --------------------------------------------------------------- layout -- */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--rail-w);
  gap: var(--gap);
  padding: var(--gap) var(--gap) 10px;
  min-height: 0;
}

.stage {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  min-height: 0;
}

.stage-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.stage-bar-left { display: flex; align-items: baseline; gap: 10px; min-width: 0; }
.stage-bar-left h2 {
  font-size: var(--fs-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-2);
  font-weight: 600;
}
.hint {
  font-size: var(--fs-xs);
  color: var(--ink-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 40ch;
}
.stage-bar-right { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; }

.readout {
  font-size: var(--fs-2xs);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding: 4px 9px;
  border: 1px solid var(--line-0);
  border-radius: var(--r-sm);
  background: rgba(6, 12, 20, 0.45);
  white-space: nowrap;
}
.readout b {
  color: var(--ink-0);
  font-size: var(--fs-xs);
  letter-spacing: 0.02em;
  text-transform: none;
  margin-left: 2px;
}

/* ---------------------------------------------------------------- stage -- */
.stage-viewport {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
}

.canvas-wrap {
  position: relative;
  /* content-box so an inline `width` means the *frame* size: the canvas fills
     the content box exactly and the rule-of-thirds overlay (inset: 0 on the
     padding box) lines up with the canvas to the pixel. */
  box-sizing: content-box;
  border: 1px solid var(--line-1);
  border-radius: var(--r-lg);
  background: #01030a;
  overflow: hidden;
  transition: border-color var(--dur-slow) var(--ease), box-shadow var(--dur-slow) var(--ease);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.5), 0 18px 44px -28px rgba(0, 0, 0, 0.95);
}
.canvas-wrap.is-live { border-color: var(--line-2); }
.canvas-wrap.is-drop {
  border-color: var(--accent-line);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.canvas-wrap.is-empty { border-style: dashed; border-color: var(--line-1); }

[hidden] { display: none !important; }

#stage-canvas {
  display: block;
  width: 100%;
  height: 100%;
  background: #01030a;
  cursor: crosshair;
}

.stage-video { display: block; width: 100%; height: 100%; object-fit: contain; background: #01030a; }
#stage-canvas[hidden], .stage-video[hidden] { display: none; }

/* rule-of-thirds overlay */
.thirds {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--dur-slow) var(--ease);
}
.thirds.is-on { opacity: 1; }
.thirds span {
  position: absolute;
  background: rgba(233, 241, 245, 0.13);
}
.thirds .v1, .thirds .v2 { top: 0; bottom: 0; width: 1px; }
.thirds .h1, .thirds .h2 { left: 0; right: 0; height: 1px; }
.thirds .v1 { left: 33.333%; }
.thirds .v2 { left: 66.666%; }
.thirds .h1 { top: 33.333%; }
.thirds .h2 { top: 66.666%; }

/* empty state */
.canvas-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
  padding: 24px;
  background:
    radial-gradient(60% 50% at 50% 42%, rgba(94, 234, 212, 0.05), transparent 70%),
    rgba(3, 6, 12, 0.35);
}
.canvas-empty[hidden] { display: none; }
.canvas-empty h3 { font-size: var(--fs-xl); font-weight: 600; letter-spacing: 0.01em; }
.canvas-empty p { font-size: var(--fs-sm); color: var(--ink-2); max-width: 42ch; }
.empty-actions { display: flex; gap: 9px; margin-top: 10px; flex-wrap: wrap; justify-content: center; }

.empty-orb {
  width: 76px; height: 76px;
  border-radius: 50%;
  margin-bottom: 6px;
  background:
    radial-gradient(circle at 50% 50%, rgba(94, 234, 212, 0.5) 0%, rgba(94, 234, 212, 0.06) 34%, transparent 62%),
    radial-gradient(circle at 68% 30%, rgba(240, 179, 87, 0.4) 0%, transparent 26%);
  border: 1px solid var(--line-1);
  animation: orb 7s ease-in-out infinite;
}
@keyframes orb {
  0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.85; }
  50% { transform: scale(1.05) rotate(180deg); opacity: 1; }
}

/* busy overlay */
.canvas-busy {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(4, 8, 14, 0.66);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}
.canvas-busy[hidden] { display: none; }
.canvas-busy p { font-size: var(--fs-md); color: var(--ink-0); }
.canvas-busy .mono { font-size: var(--fs-xs); color: var(--ink-3); }

.spinner {
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 2px solid var(--line-2);
  border-top-color: var(--accent);
  animation: spin 0.85s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.badge-corner {
  position: absolute;
  left: 10px; bottom: 10px;
  max-width: calc(100% - 20px);
  padding: 4px 9px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line-1);
  background: rgba(4, 9, 16, 0.74);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  font-family: var(--mono);
  font-size: var(--fs-2xs);
  color: var(--ink-1);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  pointer-events: none;
}
.badge-corner[hidden] { display: none; }

/* ------------------------------------------------------------- scrubber -- */
.scrubber {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 9px 14px;
  border: 1px solid var(--line-0);
  border-radius: var(--r-md);
  background: var(--panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.scrub-label {
  font-size: var(--fs-2xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-2);
  flex: none;
}
.scrub-track { position: relative; flex: 1; min-width: 60px; display: flex; align-items: center; }
.scrub-out {
  font-size: var(--fs-xs);
  color: var(--ink-1);
  min-width: 5.4ch;
  text-align: right;
  flex: none;
}
.scrub-sep { width: 1px; height: 14px; background: var(--line-1); flex: none; }

/* ---------------------------------------------------------------- rail -- */
.rail {
  display: flex;
  flex-direction: column;
  gap: 11px;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: 3px;
  scrollbar-width: thin;
  scrollbar-color: var(--line-2) transparent;
}
.rail::-webkit-scrollbar { width: 8px; }
.rail::-webkit-scrollbar-thumb {
  background: var(--line-1);
  border-radius: 4px;
  border: 2px solid transparent;
  background-clip: content-box;
}
.rail::-webkit-scrollbar-thumb:hover { background: var(--line-2); background-clip: content-box; }

.panel {
  border: 1px solid var(--line-0);
  border-radius: var(--r-lg);
  background: var(--panel);
  backdrop-filter: blur(12px) saturate(112%);
  -webkit-backdrop-filter: blur(12px) saturate(112%);
  overflow: hidden;
  /* The rail is a flex column with overflow-y: auto. Without this, flex
     shrink squeezes panels below their content height (the export panel
     collapses to ~19px) instead of letting the rail scroll. */
  flex: 0 0 auto;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px var(--pad);
  border-bottom: 1px solid var(--line-0);
  background: linear-gradient(180deg, rgba(94, 234, 212, 0.035), transparent);
}
.panel-head h2 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-xs);
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--ink-1);
  font-weight: 600;
}
.step {
  font-family: var(--mono);
  font-size: var(--fs-2xs);
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-radius: 4px;
  padding: 1px 5px;
  letter-spacing: 0.04em;
}
.panel-tag {
  font-size: var(--fs-2xs);
  letter-spacing: 0.1em;
  color: var(--ink-3);
  padding: 2px 7px;
  border: 1px solid var(--line-0);
  border-radius: 999px;
}
.panel-tag.is-ok { color: var(--accent); border-color: var(--accent-line); background: var(--accent-soft); }
.panel-tag.is-warn { color: var(--warn); border-color: rgba(240, 179, 87, 0.3); background: var(--warn-soft); }
.panel-body { padding: var(--pad); display: flex; flex-direction: column; gap: 11px; }

/* -------------------------------------------------------------- buttons -- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 13px;
  border: 1px solid var(--line-1);
  border-radius: var(--r-sm);
  background: rgba(12, 20, 30, 0.6);
  color: var(--ink-0);
  font-size: var(--fs-sm);
  cursor: pointer;
  white-space: nowrap;
  transition:
    background var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}
.btn:hover:not(:disabled) { background: rgba(22, 36, 50, 0.82); border-color: var(--line-2); }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: 0.38; cursor: not-allowed; }
.btn svg { width: 14px; height: 14px; flex: none; }

.btn-primary {
  background: linear-gradient(180deg, #6ff0dc 0%, var(--accent-dim) 100%);
  border-color: rgba(94, 234, 212, 0.5);
  color: var(--accent-ink);
  font-weight: 600;
}
.btn-primary:hover:not(:disabled) {
  background: linear-gradient(180deg, #86f5e4 0%, #3cc9b6 100%);
  border-color: rgba(94, 234, 212, 0.8);
}
.btn-primary:disabled { background: rgba(20, 34, 44, 0.7); color: var(--ink-3); border-color: var(--line-0); }

.btn-primary-ghost {
  color: var(--accent);
  border-color: var(--accent-line);
  background: var(--accent-soft);
}
.btn-primary-ghost:hover:not(:disabled) { background: rgba(94, 234, 212, 0.19); }

.btn-block { width: 100%; }
.btn-lg { padding: 11px 16px; font-size: var(--fs-md); }
.btn-icon { padding: 6px 10px; font-size: var(--fs-xs); color: var(--ink-1); }
.btn-tiny { padding: 3px 9px; font-size: var(--fs-2xs); color: var(--ink-2); }
.btn-tiny:hover:not(:disabled) { color: var(--ink-0); }
.btn-danger { color: var(--danger); border-color: rgba(255, 128, 128, 0.26); }
.btn-danger:hover:not(:disabled) { background: var(--danger-soft); border-color: rgba(255, 128, 128, 0.5); }

.btn-spin {
  width: 12px; height: 12px;
  border-radius: 50%;
  border: 1.5px solid rgba(4, 20, 15, 0.28);
  border-top-color: currentColor;
  animation: spin 0.7s linear infinite;
  display: none;
  flex: none;
}
.btn.is-busy .btn-spin { display: block; }
.btn.is-busy { cursor: progress; }

/* ----------------------------------------------------------- dropzone --- */
.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 18px 12px;
  border: 1px dashed var(--line-2);
  border-radius: var(--r-md);
  background: var(--field);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.dropzone:hover, .dropzone:focus-visible { border-color: var(--accent-line); background: var(--field-hover); }
.dropzone.is-drop { border-color: var(--accent); background: var(--accent-soft); border-style: solid; }
.dz-ico { width: 22px; height: 22px; color: var(--accent); opacity: 0.85; margin-bottom: 2px; }
.dz-title { font-size: var(--fs-sm); color: var(--ink-1); }
.dz-sub { font-size: var(--fs-2xs); color: var(--ink-3); }

/* --------------------------------------------------------------- fields -- */
.row { display: flex; gap: 8px; }
.row-2 > * { flex: 1; }

.field { display: flex; flex-direction: column; gap: 5px; }
.field > label, .field-label {
  font-size: var(--fs-xs);
  color: var(--ink-1);
  letter-spacing: 0.02em;
}
.field-note { font-size: var(--fs-2xs); color: var(--ink-3); margin-top: -4px; }

select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  padding: 8px 30px 8px 11px;
  border: 1px solid var(--line-1);
  border-radius: var(--r-sm);
  background-color: var(--field);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='7' viewBox='0 0 10 7'%3E%3Cpath d='M1 1.5L5 5.5l4-4' fill='none' stroke='%237d8f9c' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 11px center;
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
select:hover { border-color: var(--line-2); background-color: var(--field-hover); }

/* range */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 18px;
  margin: 0;
  background: transparent;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(
    to right,
    var(--accent) 0 var(--pct, 0%),
    rgba(148, 190, 205, 0.16) var(--pct, 0%) 100%
  );
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px; height: 12px;
  margin-top: -4.5px;
  border-radius: 50%;
  background: #061019;
  border: 2px solid var(--accent);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
input[type="range"]:hover::-webkit-slider-thumb { transform: scale(1.14); box-shadow: 0 0 0 4px rgba(94, 234, 212, 0.1); }
input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.05); }
input[type="range"]::-moz-range-track {
  height: 3px;
  border-radius: 2px;
  background: rgba(148, 190, 205, 0.16);
}
input[type="range"]::-moz-range-progress { height: 3px; border-radius: 2px; background: var(--accent); }
input[type="range"]::-moz-range-thumb {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: #061019;
  border: 2px solid var(--accent);
}
input[type="range"]:disabled { opacity: 0.4; cursor: not-allowed; }

/* the big scrubber */
#scrub { height: 20px; }
#scrub::-webkit-slider-thumb { width: 14px; height: 14px; margin-top: -5.5px; }
#scrub::-moz-range-thumb { width: 14px; height: 14px; }

/* ------------------------------------------------------------- source --- */
.source-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 11px;
  border: 1px solid var(--line-0);
  border-radius: var(--r-md);
  background: rgba(4, 9, 16, 0.5);
}
.source-meta[hidden] { display: none; }
.kv { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; font-size: var(--fs-xs); }
.kv > span { color: var(--ink-3); flex: none; }
.kv > b {
  color: var(--ink-0);
  font-weight: 500;
  font-size: var(--fs-xs);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: right;
}
.warnings {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 6px;
  border-top: 1px solid var(--line-0);
  font-size: var(--fs-2xs);
  color: var(--warn);
}
.warnings[hidden] { display: none; }
.warnings li { list-style: none; }
.warnings ul { margin: 0; padding: 0; }

/* --------------------------------------------------------------- stats --- */
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 10px;
  border: 1px solid var(--line-0);
  border-radius: var(--r-sm);
  background: rgba(4, 9, 16, 0.44);
}
.stat-k { font-size: var(--fs-2xs); color: var(--ink-3); letter-spacing: 0.06em; }
.stat b { font-size: var(--fs-lg); font-weight: 500; color: var(--accent); letter-spacing: 0.01em; }
.stat b.is-null { color: var(--ink-3); }

.hist { margin: 0; display: flex; flex-direction: column; gap: 6px; }
.hist figcaption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  font-size: var(--fs-2xs);
  color: var(--ink-2);
  letter-spacing: 0.06em;
}
.hist canvas {
  width: 100%;
  height: 62px;
  display: block;
  border: 1px solid var(--line-0);
  border-radius: var(--r-sm);
  background: rgba(4, 9, 16, 0.5);
}
.notes {
  font-size: var(--fs-2xs);
  color: var(--ink-2);
  line-height: 1.6;
  padding: 8px 10px;
  border-left: 2px solid var(--accent-line);
  background: rgba(94, 234, 212, 0.035);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  white-space: pre-line;
}
.notes[hidden] { display: none; }

/* ---------------------------------------------------------------- params - */
.presets { display: flex; gap: 6px; flex-wrap: wrap; }
.chip-btn {
  padding: 4px 11px;
  border: 1px solid var(--line-1);
  border-radius: 999px;
  background: rgba(10, 17, 26, 0.5);
  color: var(--ink-2);
  font-size: var(--fs-2xs);
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: all var(--dur) var(--ease);
}
.chip-btn:hover { color: var(--ink-0); border-color: var(--line-2); }
.chip-btn.is-active {
  color: var(--accent);
  border-color: var(--accent-line);
  background: var(--accent-soft);
}

.params { display: flex; flex-direction: column; gap: 3px; }

.group-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 9px 0 4px;
  font-size: var(--fs-2xs);
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.group-head::after { content: ""; flex: 1; height: 1px; background: var(--line-0); }
.group-head:first-child { margin-top: 0; }

.param { display: flex; flex-direction: column; gap: 1px; padding: 3px 0; }
.param-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}
.param-head label { font-size: var(--fs-xs); color: var(--ink-1); cursor: pointer; }
.param-head .val {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-xs);
  color: var(--accent);
  background: rgba(94, 234, 212, 0.07);
  border: 1px solid var(--line-0);
  border-radius: 4px;
  padding: 0 5px;
  min-width: 4.2ch;
  text-align: right;
}
.param.is-disabled .param-head label,
.param.is-disabled .param-head .val { color: var(--ink-3); }
.param-note { font-size: var(--fs-2xs); color: var(--ink-3); }

.seg {
  display: flex;
  gap: 0;
  border: 1px solid var(--line-1);
  border-radius: var(--r-sm);
  overflow: hidden;
  background: var(--field);
}
.seg button {
  flex: 1;
  padding: 5px 4px;
  border: 0;
  background: transparent;
  color: var(--ink-2);
  font-size: var(--fs-2xs);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.seg button + button { border-left: 1px solid var(--line-0); }
.seg button:hover { background: rgba(94, 234, 212, 0.07); color: var(--ink-0); }
.seg button.is-active { background: var(--accent-soft); color: var(--accent); }

/* ------------------------------------------------------------- progress -- */
.progress-wrap { display: flex; flex-direction: column; gap: 7px; }
.progress-wrap[hidden] { display: none; }
.progress-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  font-size: var(--fs-xs);
  color: var(--ink-1);
}
.progress-head .mono { color: var(--accent); }
.progress {
  height: 5px;
  border-radius: 3px;
  background: rgba(148, 190, 205, 0.12);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent));
  transition: width 180ms linear;
}
.progress.is-indeterminate .progress-fill {
  width: 34% !important;
  animation: slide 1.15s ease-in-out infinite;
}
@keyframes slide {
  0% { transform: translateX(-105%); }
  100% { transform: translateX(300%); }
}
.progress-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: var(--fs-2xs);
}
.progress-foot .muted { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ------------------------------------------------------------ artifacts -- */
.artifacts { display: flex; flex-direction: column; gap: 9px; }
.artifacts[hidden] { display: none; }
.artifacts h3 {
  font-size: var(--fs-2xs);
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.artifact-preview {
  border: 1px solid var(--line-1);
  border-radius: var(--r-md);
  overflow: hidden;
  background: #01030a;
}
.artifact-preview[hidden] { display: none; }
.artifact-preview video,
.artifact-preview img { display: block; width: 100%; max-height: 250px; object-fit: contain; background: #01030a; }

.artifact-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.artifact-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--line-0);
  border-radius: var(--r-sm);
  background: rgba(4, 9, 16, 0.44);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.artifact-list li:hover { border-color: var(--line-1); background: rgba(8, 15, 24, 0.6); }
.artifact-info { min-width: 0; flex: 1; }
.artifact-name {
  font-size: var(--fs-xs);
  color: var(--ink-0);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.artifact-sub { font-size: var(--fs-2xs); color: var(--ink-3); font-family: var(--mono); }
.artifact-kind {
  font-size: var(--fs-2xs);
  letter-spacing: 0.08em;
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid var(--accent-line);
  color: var(--accent);
  background: var(--accent-soft);
  flex: none;
}
.artifact-dl {
  text-decoration: none;
  font-size: var(--fs-2xs);
  padding: 5px 10px;
  border: 1px solid var(--line-1);
  border-radius: var(--r-sm);
  color: var(--ink-0);
  flex: none;
  transition: all var(--dur) var(--ease);
}
.artifact-dl:hover { border-color: var(--accent-line); color: var(--accent); background: var(--accent-soft); }

/* --------------------------------------------------------------- toasts -- */
.toasts {
  position: fixed;
  right: 16px; bottom: 46px;
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: min(380px, calc(100vw - 32px));
  pointer-events: none;
}
.toast {
  display: flex;
  gap: 9px;
  padding: 10px 12px;
  border: 1px solid var(--line-1);
  border-left-width: 2px;
  border-radius: var(--r-md);
  background: rgba(10, 18, 28, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-size: var(--fs-sm);
  color: var(--ink-0);
  pointer-events: auto;
  animation: toast-in 200ms var(--ease);
}
.toast.is-out { animation: toast-out 180ms var(--ease) forwards; }
.toast-error { border-left-color: var(--danger); }
.toast-warn { border-left-color: var(--warn); }
.toast-ok { border-left-color: var(--accent); }
.toast-info { border-left-color: var(--line-2); }
.toast-body { min-width: 0; }
.toast-title { font-weight: 600; font-size: var(--fs-sm); }
.toast-msg { font-size: var(--fs-xs); color: var(--ink-1); word-break: break-word; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes toast-out { to { opacity: 0; transform: translateY(6px); } }

/* ------------------------------------------------------------ statusbar -- */
.statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 18px;
  border-top: 1px solid var(--line-0);
  background: rgba(6, 11, 18, 0.6);
  font-size: var(--fs-2xs);
  color: var(--ink-3);
  letter-spacing: 0.03em;
}
.status-msg { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.status-right { display: flex; align-items: center; gap: 8px; flex: none; }

/* ------------------------------------------------------------ responsive - */
@media (max-width: 1240px) {
  :root { --rail-w: 320px; --gap: 12px; --pad: 13px; }
  .hint { max-width: 24ch; }
}

@media (max-width: 1040px) {
  body { overflow: auto; height: auto; min-height: 100dvh; }
  .layout { grid-template-columns: minmax(0, 1fr); }
  .stage { min-height: 62vh; }
  .rail { overflow: visible; max-height: none; padding-right: 0; }
  .rail .panel { break-inside: avoid; }
  .params { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 16px; }
  .group-head { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; gap: 8px; }
  .stage-bar-right .readout { display: none; }
  .params { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .statusbar .status-right { display: none; }
}

/* --------------------------------------------------------- reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .empty-orb { animation: none; }
  .progress.is-indeterminate .progress-fill { animation: none; width: 100% !important; opacity: 0.5; }
}