/* ==========================================================================
   Kinesis Subtitle Lab
   Tokens match the homepage (styles.css); change colours here.
   ========================================================================== */

:root {
  --bg: #0f1113;
  --bg-deep: #0a0b0d;
  --surface: #16191d;
  --surface-2: #1c2025;
  --line: #262b31;
  --line-strong: #3a4048;
  --text: #eceee9;
  --muted: #a4aab2;
  --lime: #c8f03c;
  --lime-strong: #d8ff57;
  --error: #ff7a6b;
  --warning: #f2b54a;
  --info: #7cb6ff;

  --font: "Segoe UI Variable Text", "Segoe UI Variable", -apple-system, BlinkMacSystemFont,
    "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Mono", "Cascadia Code", Consolas, "SF Mono", Menlo, "Liberation Mono", monospace;

  --wrap: 92rem;
  --gutter: clamp(1rem, 3vw, 2rem);
  --radius: 14px;
  --radius-small: 8px;
  color-scheme: dark;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }
code, kbd { font-family: var(--mono); font-size: 0.9em; }
kbd { padding: 0.05rem 0.35rem; border: 1px solid var(--line-strong); border-bottom-width: 2px; border-radius: 5px; background: var(--surface); }

:focus-visible { outline: 2px solid var(--lime); outline-offset: 2px; border-radius: 6px; }

[hidden] { display: none !important; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 1rem; top: -4rem; z-index: 30;
  padding: 0.6rem 1rem; background: var(--lime); color: var(--bg);
  font-weight: 600; border-radius: var(--radius-small);
}
.skip-link:focus { top: 0.5rem; }

.lab-wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

/* ---------- Kinesis Tools site bar (same as the other tools) ---------- */

#sitebar { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 40px; padding: 0 20px; background: var(--bg); border-bottom: 1px solid var(--line); font-size: 13.5px; line-height: 1.2; }
#sitebar a { color: var(--muted); text-decoration: none; }
#sitebar a:hover { color: var(--text); }
#sitebar .site-brand { display: inline-flex; align-items: center; gap: 9px; color: var(--text); font-weight: 600; letter-spacing: -0.01em; white-space: nowrap; }
#sitebar .site-links { display: flex; gap: 4px; }
#sitebar .site-links a { padding: 5px 11px; border-radius: 999px; white-space: nowrap; }
#sitebar .site-links a:hover { background: var(--surface); }
#sitebar a:focus-visible { outline: 2px solid var(--lime); outline-offset: 2px; border-radius: 999px; }
@media (max-width: 560px) { #sitebar .site-links a:not(.keep) { display: none; } }

/* ---------- Page head ---------- */

.lab-head { border-bottom: 1px solid var(--line); background: var(--bg-deep); }
.lab-head-inner { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1rem 2rem; padding-block: 1.6rem 1.4rem; }
.kicker { color: var(--lime); font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
.lab-head h1 { margin-top: 0.2rem; font-size: clamp(1.6rem, 2.2vw + 1rem, 2.3rem); line-height: 1.15; letter-spacing: -0.02em; }
.lede { margin-top: 0.4rem; max-width: 44rem; color: var(--muted); font-size: 1rem; }
.local-note { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.45rem 0.85rem; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--text); font-size: 0.85rem; }
.local-note svg { flex: none; fill: none; stroke: var(--lime); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- Buttons and fields ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  min-height: 2.25rem; padding: 0 0.95rem;
  border: 1px solid var(--line-strong); border-radius: 999px;
  background: transparent; color: var(--text);
  font-size: 0.88rem; font-weight: 600; white-space: nowrap;
  cursor: pointer; transition: background-color 0.15s, border-color 0.15s;
}
.btn:hover:not(:disabled) { background: var(--surface-2); border-color: var(--muted); }
.btn:disabled { opacity: 0.4; cursor: default; }
.btn--primary { background: var(--lime); border-color: transparent; color: #12160a; }
.btn--primary:hover:not(:disabled) { background: var(--lime-strong); border-color: transparent; }
.btn--danger:hover:not(:disabled) { border-color: var(--error); color: var(--error); background: transparent; }
.btn--danger.is-confirming { border-color: var(--error); background: var(--error); color: #1a0b08; }
.btn--small { min-height: 1.9rem; padding: 0 0.75rem; font-size: 0.82rem; }

.text-button { padding: 0.2rem 0; border: 0; background: none; color: var(--lime); font-size: 0.85rem; font-weight: 600; cursor: pointer; text-decoration: underline; text-underline-offset: 0.2em; }

input[type="text"], input[type="search"], input[type="number"], select, textarea {
  width: 100%;
  min-height: 2.25rem;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-small);
  background: var(--bg-deep);
  color: var(--text);
}
select { padding-right: 1.8rem; }
textarea { resize: vertical; line-height: 1.45; }
input:hover, select:hover, textarea:hover { border-color: #4a525c; }
input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--lime); outline-offset: 0; border-color: transparent; }
input[aria-invalid="true"] { border-color: var(--error); }
input[type="checkbox"], input[type="radio"] { accent-color: var(--lime); width: 1rem; height: 1rem; margin: 0; flex: none; }

.field { display: grid; gap: 0.3rem; }
.field > span { color: var(--muted); font-size: 0.8rem; font-weight: 600; }
.field small { font-weight: 400; }
.field--inline { grid-template-columns: 1fr 6.5rem; align-items: center; gap: 0.75rem; }
.field--inline select { width: auto; min-width: 10rem; }
.inline-field { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--muted); font-size: 0.82rem; }
.inline-field select { width: auto; min-height: 2rem; padding-block: 0.2rem; }
.field-error { color: var(--error); font-size: 0.82rem; min-height: 0; }
.field-error:empty { display: none; }

/* ---------- Toolbar ---------- */

.lab { padding-block: 1.25rem 2.5rem; }
.lab:focus { outline: none; }

.toolbar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 0.75rem 1.25rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface);
}
.toolbar-group { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.file-info { gap: 0.25rem 1rem; min-width: 0; }
.file-name { font-weight: 700; overflow-wrap: anywhere; }
.file-meta { color: var(--muted); font-size: 0.82rem; }

.segmented { display: inline-flex; margin: 0; padding: 2px; border: 1px solid var(--line-strong); border-radius: 999px; }
.segmented label { position: relative; }
.segmented input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; cursor: pointer; }
.segmented span { display: block; padding: 0.25rem 0.85rem; border-radius: 999px; font-size: 0.82rem; font-weight: 700; color: var(--muted); }
.segmented input:checked + span { background: var(--surface-2); color: var(--text); box-shadow: inset 0 0 0 1px var(--line-strong); }
.segmented input:focus-visible + span { outline: 2px solid var(--lime); outline-offset: 1px; }

.status-line { min-height: 1.5rem; margin: 0.6rem 0.2rem; color: var(--muted); font-size: 0.88rem; }
.status-line.is-success { color: var(--lime); }
.status-line.is-error { color: var(--error); }
.status-line.is-busy::before { content: ""; display: inline-block; width: 0.75rem; height: 0.75rem; margin-right: 0.5rem; vertical-align: -0.05rem; border: 2px solid var(--muted); border-top-color: transparent; border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Import (empty state) ---------- */

.import { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1.25rem; }
.dropzone {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.4rem;
  min-height: 18rem; padding: 2rem 1.25rem;
  border: 1.5px dashed var(--line-strong); border-radius: var(--radius);
  background: var(--surface); text-align: center;
  transition: border-color 0.15s, background-color 0.15s;
}
.dropzone svg { fill: none; stroke: var(--lime); stroke-width: 1.6; stroke-linecap: round; margin-bottom: 0.4rem; }
.dropzone-title { font-size: 1.1rem; font-weight: 700; }
.dropzone-sub, .dropzone-hint { color: var(--muted); font-size: 0.85rem; }
.dropzone-hint { margin-top: 0.4rem; }
.file-button { min-height: 2.7rem; padding-inline: 1.3rem; font-size: 0.95rem; }
.file-button:focus-within { outline: 2px solid var(--lime); outline-offset: 3px; }
body.is-dragging .dropzone, body.is-dragging .workspace { border-color: var(--lime); }
body.is-dragging .dropzone { background: #1a1f12; }

.paste { display: flex; flex-direction: column; gap: 0.5rem; padding: 1.25rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.paste-label { font-weight: 700; }
.paste textarea { flex: 1; min-height: 11rem; font-family: var(--mono); font-size: 0.85rem; }
.paste-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; }

/* ---------- Workspace ---------- */

.workspace {
  display: grid;
  grid-template-columns: minmax(16rem, 22rem) minmax(0, 1fr) minmax(17rem, 23rem);
  gap: 1rem;
  align-items: start;
  border-radius: var(--radius);
}
.pane { min-width: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.pane-head { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; padding: 0.75rem 1rem; border-bottom: 1px solid var(--line); }
.pane-head h2, .side-section h2 { font-size: 0.95rem; font-weight: 700; }
.pane-actions { display: flex; gap: 0.35rem; }
.count { color: var(--muted); font-weight: 600; font-size: 0.82rem; margin-left: 0.25rem; }
.pane-hint { padding: 0.5rem 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.78rem; }

/* Cue list */
.cue-pane { position: sticky; top: 0.75rem; display: flex; flex-direction: column; max-height: calc(100vh - 1.5rem); }
.cue-filters { display: grid; grid-template-columns: 1fr auto; gap: 0.4rem; padding: 0.6rem; border-bottom: 1px solid var(--line); }
.cue-filters select { width: auto; }
.cue-list { flex: 1; min-height: 12rem; overflow-y: auto; overscroll-behavior: contain; padding: 0.3rem; }
.cue-list li { content-visibility: auto; contain-intrinsic-size: auto 3.6rem; }
.cue-row {
  display: grid; grid-template-columns: auto 1fr auto; gap: 0.1rem 0.6rem; width: 100%;
  padding: 0.45rem 0.6rem; border: 1px solid transparent; border-radius: var(--radius-small);
  background: none; text-align: left; cursor: pointer;
}
.cue-row:hover { background: var(--surface-2); }
.cue-row[aria-current="true"] { background: #20261a; border-color: #4d5a26; }
.cue-num { grid-row: span 2; color: var(--muted); font-family: var(--mono); font-size: 0.78rem; min-width: 2.5ch; text-align: right; padding-top: 0.05rem; }
.cue-time { font-family: var(--mono); font-size: 0.76rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cue-text { grid-column: 2 / span 2; font-size: 0.86rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cue-text.is-empty { color: var(--muted); font-style: italic; }
.cue-flag { justify-self: end; width: 0.6rem; height: 0.6rem; margin-top: 0.3rem; border-radius: 50%; }
.cue-flag--error { background: var(--error); }
.cue-flag--warning { background: var(--warning); }
.cue-flag--info { border: 1.5px solid var(--info); }
.cue-list-empty { padding: 1.5rem 1rem; color: var(--muted); text-align: center; font-size: 0.88rem; }

/* Editor */
.editor { display: grid; gap: 0.8rem; padding: 1rem; }
.time-row { display: grid; grid-template-columns: 1fr 1fr auto; gap: 0.75rem; align-items: end; }
.time-row input { font-family: var(--mono); font-size: 0.9rem; }
.duration output { display: block; min-height: 2.25rem; padding: 0.45rem 0.2rem; font-family: var(--mono); font-size: 0.9rem; white-space: nowrap; }
.vtt-row { display: grid; grid-template-columns: 1fr 1.6fr; gap: 0.75rem; }
.editor textarea { min-height: 6.5rem; font-size: 1rem; }
.line-stats { display: flex; flex-wrap: wrap; gap: 0.3rem 1rem; color: var(--muted); font-size: 0.8rem; font-family: var(--mono); margin-top: -0.4rem; }
.line-stats .over { color: var(--warning); font-weight: 700; }
.cue-findings { display: grid; gap: 0.4rem; }
.cue-findings:empty { display: none; }
.editor-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.editor.is-disabled { opacity: 0.5; pointer-events: none; }

/* Frame preview */
.frame { padding: 0 1rem 1rem; }
.frame-screen { position: relative; aspect-ratio: 16 / 9; overflow: hidden; border-radius: var(--radius-small); background: radial-gradient(ellipse at 50% 40%, #232830, #050607 75%); container-type: inline-size; }
.frame-safe { position: absolute; inset: 10% 10%; border: 1px dashed rgba(255, 255, 255, 0.14); }
.frame-cue {
  position: absolute; left: 10%; right: 10%; bottom: 8%;
  text-align: center; color: #fff;
  font-family: Arial, Helvetica, sans-serif; font-size: max(12px, 4.2cqw); line-height: 1.25;
  text-shadow: 0 0 3px #000, 0 1px 3px #000, 0 0 8px rgba(0, 0, 0, 0.8);
  white-space: pre-wrap; overflow-wrap: anywhere;
}
.frame-cue.is-top { bottom: auto; top: 8%; }
.frame-cue span.line { display: inline; background: rgba(0, 0, 0, 0.35); padding: 0 0.2em; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.frame figcaption { margin-top: 0.5rem; color: var(--muted); font-size: 0.78rem; }

/* Side pane */
.side-pane { display: grid; }
.side-section { padding: 0.9rem 1rem; border-bottom: 1px solid var(--line); }
.side-section:last-child { border-bottom: 0; }
details.side-section > summary { display: flex; align-items: center; justify-content: space-between; cursor: pointer; list-style: none; }
details.side-section > summary::-webkit-details-marker { display: none; }
details.side-section > summary::after { content: ""; width: 0.5rem; height: 0.5rem; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: rotate(45deg); margin-right: 0.2rem; transition: transform 0.15s; }
details.side-section[open] > summary::after { transform: rotate(-135deg); }
details.side-section[open] > summary { margin-bottom: 0.75rem; }
.side-help { color: var(--muted); font-size: 0.82rem; margin-bottom: 0.6rem; }
.side-result { margin-top: 0.6rem; font-size: 0.84rem; color: var(--muted); }
.side-result:empty { display: none; }
.side-result ul { margin-top: 0.3rem; display: grid; gap: 0.15rem; }

.qc-counts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.4rem; margin: 0.7rem 0; }
.qc-count { display: grid; justify-items: start; padding: 0.45rem 0.6rem; border: 1px solid var(--line-strong); border-radius: var(--radius-small); background: var(--bg-deep); cursor: pointer; text-align: left; }
.qc-count strong { font-size: 1.25rem; line-height: 1.1; font-variant-numeric: tabular-nums; }
.qc-count span { color: var(--muted); font-size: 0.76rem; }
.qc-count--error strong { color: var(--error); }
.qc-count--warning strong { color: var(--warning); }
.qc-count--info strong { color: var(--info); }
.qc-count[aria-pressed="false"] { opacity: 0.45; }
.qc-count[aria-pressed="false"] strong { text-decoration: line-through; }

.findings { display: grid; gap: 0.35rem; max-height: 26rem; overflow-y: auto; overscroll-behavior: contain; }
.finding { border-left: 3px solid var(--line-strong); border-radius: 4px; background: var(--bg-deep); }
.finding--error { border-left-color: var(--error); }
.finding--warning { border-left-color: var(--warning); }
.finding--info { border-left-color: var(--info); }
.finding button, .finding > div { display: block; width: 100%; padding: 0.45rem 0.6rem; border: 0; background: none; text-align: left; font-size: 0.82rem; line-height: 1.4; }
.finding button { cursor: pointer; }
.finding button:hover { background: var(--surface-2); }
.finding .hint { display: block; margin-top: 0.15rem; color: var(--muted); font-size: 0.78rem; }
.finding .sev { font-weight: 700; text-transform: uppercase; font-size: 0.68rem; letter-spacing: 0.06em; margin-right: 0.35rem; }
.finding--error .sev { color: var(--error); }
.finding--warning .sev { color: var(--warning); }
.finding--info .sev { color: var(--info); }
.findings-empty { color: var(--lime); font-size: 0.86rem; }

.limits { display: grid; gap: 0.5rem; }
.limits input { text-align: right; font-variant-numeric: tabular-nums; }
.checks { display: grid; gap: 0.45rem; margin: 0 0 0.85rem; padding: 0; border: 0; }
.checks > label:not(.field) { display: flex; align-items: flex-start; gap: 0.55rem; font-size: 0.86rem; }
.checks > label input { margin-top: 0.15rem; }
.checks > label.sub { margin-left: 1.55rem; color: var(--muted); }
.checks .field--inline { grid-template-columns: auto 1fr; margin-top: 0.2rem; font-size: 0.86rem; }

/* ---------- Output ---------- */

.output { margin-top: 1rem; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.output-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.6rem 1rem; margin-bottom: 0.75rem; }
.output-head h2 { font-size: 0.95rem; }
.output-options { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem 1rem; }
.report { display: grid; gap: 0.35rem; margin-bottom: 0.75rem; }
.report:empty { display: none; }
.report li { padding: 0.45rem 0.7rem; border-left: 3px solid var(--info); border-radius: 4px; background: var(--bg-deep); font-size: 0.84rem; }
.report li.report--warning { border-left-color: var(--warning); }
.report li.report--error { border-left-color: var(--error); }
.output-text { min-height: 16rem; font-family: var(--mono); font-size: 0.84rem; white-space: pre; overflow-wrap: normal; overflow-x: auto; }

/* ---------- Explanatory content ---------- */

.info { padding-block: 3rem; border-top: 1px solid var(--line); background: var(--bg-deep); }
.info-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem 3rem; }
.info-block h2 { font-size: 1.15rem; margin-bottom: 0.6rem; letter-spacing: -0.01em; }
.info-block p, .info-list li { color: var(--muted); font-size: 0.95rem; }
.info-block p + p { margin-top: 0.7rem; }
.info-block strong { color: var(--text); }
.info-list { display: grid; gap: 0.4rem; margin-bottom: 0.7rem; }
.more-tools { margin-top: 2.5rem; }
.more-tools h2 { font-size: 1.15rem; margin-bottom: 0.7rem; }
.more-tools ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; }
.more-tools li { display: grid; gap: 0.2rem; padding: 0.9rem 1rem; border: 1px solid var(--line); border-radius: var(--radius-small); background: var(--surface); }
.more-tools a { font-weight: 700; color: var(--text); text-decoration-color: var(--lime); text-underline-offset: 0.2em; }
.more-tools span { color: var(--muted); font-size: 0.88rem; }

.site-footer { padding-block: 1.6rem; border-top: 1px solid var(--line); background: var(--bg-deep); color: var(--muted); font-size: 0.88rem; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem 2rem; }
.site-footer ul { display: flex; flex-wrap: wrap; gap: 0.4rem 1.4rem; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--text); text-decoration: underline; }

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

@media (max-width: 1180px) {
  .workspace { grid-template-columns: minmax(15rem, 20rem) minmax(0, 1fr); }
  .side-pane { grid-column: 1 / -1; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .side-section { border-bottom: 0; border-right: 1px solid var(--line); }
  .side-section:last-child { border-right: 0; }
}
@media (max-width: 860px) {
  .import, .info-grid, .more-tools ul { grid-template-columns: 1fr; }
  .workspace { grid-template-columns: 1fr; }
  .cue-pane { position: static; max-height: 22rem; }
  .side-pane { grid-template-columns: 1fr; }
  .side-section { border-right: 0; border-bottom: 1px solid var(--line); }
  .toolbar { align-items: stretch; }
  .export-group { width: 100%; justify-content: space-between; }
}
@media (max-width: 520px) {
  .time-row { grid-template-columns: 1fr 1fr; }
  .duration { grid-column: 1 / -1; }
  .vtt-row { grid-template-columns: 1fr; }
  .dropzone { min-height: 13rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}