/* Dark palette and the graph/table classes are carried over from the local
   tool app (web/style.css) so the Space reads as the same project.

   Anomalies are drawn in amber, not red: the model only ever says "this does
   not sound like the healthy recordings", which is a reason to look, not a
   confirmed fault. Red is kept for actual errors. */

:root {
  color-scheme: light;
  --bg: #12141a;
  --panel: #1b1e27;
  --border: #2c3040;
  --text: #e6e8ef;
  --muted: #9aa1b2;
  --accent: #5b8def;
  --healthy: #3ddc84;
  --caution: #f5a524;
  --defective: #f2545b;
}

* {
  box-sizing: border-box;
}

/* The boot panel and the form are toggled with the hidden attribute, and both
   carry a display of their own that would otherwise win over it. */
[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

main {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1.5rem;
}

.app-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.app-header h1 {
  font-size: 1.1rem;
  margin: 0;
}

.subtitle {
  color: var(--muted);
  font-size: 0.85rem;
}

/* --- loading state -------------------------------------------------------- */

.boot-panel {
  max-width: 26rem;
  margin: 0 auto;
  padding: 3rem 0;
  color: var(--muted);
  text-align: center;
}

.boot-message {
  margin: 0 0 0.7rem;
  font-size: 0.95rem;
  color: var(--text);
}

.boot-detail {
  margin: 0.55rem 0 0;
  font-size: 0.8rem;
  min-height: 1.2em;
}

.boot-bar {
  height: 6px;
  border-radius: 3px;
  background: var(--panel);
  border: 1px solid var(--border);
  overflow: hidden;
}

.boot-bar-fill {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
  transition: width 0.25s ease;
}

/* Until the first content-length lands there is no percentage to show, so the
   bar sweeps instead of filling. */
.boot-bar.is-indeterminate .boot-bar-fill {
  width: 35%;
  transition: none;
  animation: sweep 1.4s ease-in-out infinite;
}

@keyframes sweep {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(286%);
  }
}

.boot-panel.is-error .boot-message {
  color: var(--defective);
}

@media (prefers-reduced-motion: reduce) {
  .boot-bar.is-indeterminate .boot-bar-fill {
    animation-duration: 4s;
  }

  .boot-bar-fill {
    transition: none;
  }
}

/* --- upload --------------------------------------------------------------- */

.upload-panel {
  margin-top: 1rem;
}

.drop-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding: 2.5rem 1rem;
  border: 1px dashed var(--border);
  border-radius: 8px;
  background: var(--panel);
  cursor: pointer;
  text-align: center;
}

.drop-zone.is-dragover,
.drop-zone:focus-visible {
  border-color: var(--accent);
  outline: none;
}

.drop-zone strong {
  font-size: 1.05rem;
}

.drop-zone .hint {
  color: var(--muted);
  font-size: 0.85rem;
}

.hint-tip {
  margin-top: 0.6rem;
}

/* Only a real file name is worth the accent colour - the placeholder in accent
   reads as a link the user is meant to click. */
.file-name {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.file-name.has-file {
  color: var(--accent);
  font-weight: 600;
}

/* A fieldset is left as a block box - a legend does not participate in a flex
   container's flow - and the radios get their own flex row. */
.controls {
  margin: 1.1rem 0 0;
  padding: 0;
  border: 0;
}

.controls legend {
  padding: 0;
  margin-bottom: 0.5rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.choices {
  display: flex;
  align-items: center;
  gap: 0.5rem 1.5rem;
  flex-wrap: wrap;
}

.choice {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  font-size: 0.9rem;
}

.choice input {
  accent-color: var(--accent);
  margin: 0;
}

button {
  font: inherit;
  margin-top: 1.1rem;
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 0.55rem 1.4rem;
  color: #0b1020;
  font-weight: 600;
  cursor: pointer;
}

button:disabled {
  background: var(--panel);
  border-color: var(--border);
  color: var(--muted);
  cursor: default;
}

.status {
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
  min-height: 1.3em;
}

.status.is-error {
  color: var(--defective);
}

/* --- results -------------------------------------------------------------- */

.results {
  margin-top: 2rem;
}

/* The verdict is the whole point of the page, so it gets the largest type on
   it and everything technical sits below or behind a toggle. */
.verdict {
  padding: 1.2rem 1.4rem;
  border: 1px solid var(--border);
  border-left-width: 4px;
  border-radius: 8px;
  background: var(--panel);
}

.verdict-headline {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.3;
}

.verdict-explanation {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 46rem;
}

.verdict.is-pending {
  border-left-color: var(--accent);
}

.verdict.is-pending .verdict-headline {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--muted);
}

.verdict.is-healthy {
  border-left-color: var(--healthy);
}

.verdict.is-healthy .verdict-headline {
  color: var(--healthy);
}

.verdict.is-anomaly {
  border-left-color: var(--caution);
}

.verdict.is-anomaly .verdict-headline {
  color: var(--caution);
}

.summary {
  margin: 0.8rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.summary:empty {
  display: none;
}

/* --- collapsible explainer + details -------------------------------------- */

details {
  margin-top: 1.25rem;
}

details > summary {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  color: var(--accent);
  font-size: 0.85rem;
  list-style: none;
  user-select: none;
}

details > summary::-webkit-details-marker {
  display: none;
}

details > summary::after {
  content: "▾";
  font-size: 0.75em;
  transition: transform 0.15s ease;
}

details[open] > summary::after {
  transform: rotate(180deg);
}

.explainer p {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
  max-width: 46rem;
}

.explainer {
  margin-bottom: 0.75rem;
}

.file-header {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 0.8rem 0 0.2rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.table-scroll {
  overflow-x: auto;
}

/* One box holding the two scroll viewports. Both viewports are exactly this
   box's inner width, which is what lets a shared scrollLeft mean the same
   moment in time in both - see js/ui.js. */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.scroll {
  overflow-x: auto;
  overflow-y: hidden;
}

.spectrogram-inner {
  height: 200px;
}

.spectrogram-image {
  display: block;
  width: 100%;
  height: 200px;
}

.graph-scroll {
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.graph {
  display: block;
  height: 180px;
}

.gridline {
  stroke: var(--border);
  stroke-width: 1;
}

.axis-line {
  stroke: var(--muted);
  stroke-width: 1;
}

.axis-label {
  fill: var(--muted);
  font-size: 10px;
  font-family: inherit;
}

.axis-label-y {
  text-anchor: end;
}

.axis-label-x {
  text-anchor: middle;
}

.score-line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.5;
  stroke-linejoin: round;
}

.area {
  stroke: none;
}

.area-healthy {
  fill: rgba(91, 141, 239, 0.22);
}

.area-anomaly {
  fill: rgba(245, 165, 36, 0.3);
}

.threshold-line {
  stroke: var(--caution);
  stroke-width: 1;
  stroke-dasharray: 5 4;
}

.threshold-label {
  fill: var(--caution);
  text-anchor: start;
}

.dot {
  fill: var(--accent);
}

.dot.is-anomaly {
  fill: var(--caution);
}

/* Invisible full-height column per segment: carries the tooltip and gives the
   pointer a real target instead of a 2px dot. */
.hover-band {
  fill: transparent;
}

.hover-band:hover {
  fill: rgba(230, 232, 239, 0.07);
}

.segment-table {
  width: 100%;
  margin-top: 0.6rem;
  border-collapse: collapse;
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

.segment-table th,
.segment-table td {
  padding: 0.35rem 0.6rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.segment-table th {
  color: var(--muted);
  font-weight: 500;
}

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

.segment-table tbody tr.is-anomaly {
  background: rgba(245, 165, 36, 0.14);
}

.segment-table tbody tr.is-anomaly:hover {
  background: rgba(245, 165, 36, 0.22);
}

.verdict-healthy {
  color: var(--healthy);
}

.verdict-anomaly {
  color: var(--caution);
}

.app-footer {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8rem;
}

.app-footer p {
  max-width: 46rem;
}

.app-footer a {
  color: var(--accent);
}