:root {
  color-scheme: light;
  --ink: #202326;
  --muted: #697178;
  --paper: #f6f4ef;
  --panel: #fffefa;
  --line: #d9d5cc;
  --blue: #1e5b75;
  --blue-soft: #e3f0f2;
  --amber: #a85a18;
  --amber-soft: #fff0d9;
  --red: #9b3632;
  --green: #31715a;
  --row-height: 70px;
}

* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; }
body {
  color: var(--ink);
  background: var(--paper);
  font: 14px/1.45 "Avenir Next", "Segoe UI", sans-serif;
  letter-spacing: 0;
}
body.font-mono { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
body.font-subtitle { font-family: "Trebuchet MS", "Gill Sans", sans-serif; }
.app { height: 100%; display: grid; grid-template-rows: auto auto minmax(0, 1fr) auto; overflow: hidden; }
.masthead { border-bottom: 1px solid var(--line); background: var(--panel); }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 15px 28px 12px; }
.title { display: flex; align-items: baseline; gap: 12px; min-width: 0; }
h1 { margin: 0; overflow: hidden; font: 700 18px/1.1 Georgia, serif; text-overflow: ellipsis; white-space: nowrap; }
.eyebrow { color: var(--muted); font-size: 11px; font-weight: 700; text-transform: uppercase; }
.status { display: flex; align-items: center; gap: 16px; color: var(--muted); font-size: 12px; white-space: nowrap; }
.status strong { color: var(--ink); font-size: 13px; }
.validity { color: var(--green); font-weight: 700; }
.validity.invalid { color: var(--red); }
.controls { display: flex; align-items: center; justify-content: flex-end; gap: 8px; padding: 0 28px 11px; }
select, button, .file-control { border: 1px solid var(--line); border-radius: 3px; background: var(--panel); color: var(--ink); font: inherit; }
select { padding: 6px 28px 6px 9px; }
button, .file-control { cursor: pointer; padding: 6px 11px; }
button:hover, .file-control:hover { border-color: var(--blue); color: var(--blue); }
#package-file { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; clip-path: inset(50%); }
#package-file:focus-visible + .file-control { outline: 2px solid var(--blue); }
.cue-headers { display: grid; grid-template-columns: 60px minmax(0, 1fr) minmax(0, 1fr) 116px; gap: 18px; width: calc(100% - 56px); max-width: 1440px; margin: 0 auto; padding: 10px 16px 7px; color: var(--muted); font-size: 10px; font-weight: 700; text-transform: uppercase; }
.cue-list { min-height: 0; overflow: auto; padding: var(--edge-padding, 0) 28px; scroll-behavior: smooth; scrollbar-color: #a9aaa5 transparent; }
.cue-row { display: grid; grid-template-columns: 60px minmax(0, 1fr) minmax(0, 1fr) 116px; gap: 18px; min-height: var(--row-height); max-width: 1440px; margin: 0 auto; padding: 7px 16px; border: 0; border-bottom: 1px solid var(--line); background: transparent; transition: background .15s, outline .15s; }
.cue-row.active { outline: 2px solid var(--blue); outline-offset: -2px; background: #fbffff; }
.cue-number { display: grid; grid-template-columns: 4ch auto; align-items: start; justify-content: start; column-gap: 4px; color: var(--blue); font: 700 16px Georgia, serif; }
.cue-id { display: block; text-align: right; font-variant-numeric: lining-nums tabular-nums; }
.cue-duration { display: block; grid-column: 1; text-align: right; color: var(--muted); font: 10px/1.25 "SFMono-Regular", Consolas, monospace; }
.cue-meta { grid-column: 2; grid-row: 1 / span 2; margin-top: 3px; color: var(--muted); font: 10px/1.25 "SFMono-Regular", Consolas, monospace; white-space: pre; writing-mode: vertical-rl; transform: rotate(180deg); }
.fit-box { position: relative; width: 100%; padding: 10px 11px; border: 1px solid #c9c5bc; background: #faf9f5; font-size: 15px; line-height: 1.35; white-space: pre-wrap; overflow-wrap: anywhere; }
.fit-box > .line { display: block; min-height: 20px; }
.fit-box .overflow { background: #ffc989; color: #7d3b10; text-decoration: underline wavy #b65b18; }
.extra-line { display: block; width: 100%; margin: 8px 0 0; padding: 7px 11px; border: 1px dashed #d88b3a; background: var(--amber-soft); color: #7d3b10; }
.fit-badge { position: absolute; top: -9px; right: 7px; padding: 1px 5px; border: 1px solid #d88b3a; border-radius: 2px; background: var(--amber-soft); color: #8c4812; font-size: 10px; font-weight: 700; }
.edit-area { margin-top: 7px; }
.edit-area textarea { display: block; width: 100%; min-height: 64px; resize: vertical; border: 1px solid var(--blue); border-radius: 2px; padding: 8px 10px; background: var(--panel); color: var(--ink); font: inherit; line-height: 1.4; }
.edit-area textarea:focus { outline: 2px solid var(--blue-soft); }
.edit-error { margin: 5px 0 0; color: var(--red); font-size: 12px; font-weight: 700; }
.flags { display: flex; align-content: flex-start; flex-wrap: wrap; gap: 5px; }
.flag { align-self: flex-start; padding: 3px 6px; border-radius: 2px; background: var(--amber-soft); color: #8c4812; font-size: 10px; font-weight: 700; text-transform: uppercase; }
.flag:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.flag.unresolved { background: #f8dfdf; color: var(--red); }
.flag.reviewer { background: var(--blue-soft); color: var(--blue); }
.empty-state { max-width: 1440px; margin: 32px auto; color: var(--muted); text-align: center; }
footer { display: grid; grid-template-columns: 1fr auto; gap: 20px; align-items: center; border-top: 1px solid var(--line); background: #ebe8e0; padding: 11px 28px; }
.help { display: flex; flex-wrap: wrap; gap: 7px 15px; color: var(--muted); font-size: 11px; }
.help [data-help] { position: relative; cursor: help; }
.help [data-help]::after { content: attr(data-help); position: absolute; bottom: calc(100% + 8px); left: 0; z-index: 10; width: max-content; max-width: 280px; padding: 7px 9px; border: 1px solid var(--line); border-radius: 4px; background: var(--panel); color: var(--ink); font-size: 12px; line-height: 1.4; white-space: normal; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15); opacity: 0; visibility: hidden; pointer-events: none; transition: opacity 0.1s; }
.help [data-help]:hover::after, .help [data-help]:focus-visible::after { opacity: 1; visibility: visible; }
kbd { display: inline-block; min-width: 20px; margin-right: 4px; padding: 1px 4px; border: 1px solid #c0bbb1; border-bottom-width: 2px; border-radius: 3px; background: var(--panel); color: var(--ink); font: 700 10px monospace; text-align: center; }
#toast { position: fixed; right: 24px; bottom: 64px; max-width: 340px; padding: 10px 13px; border: 1px solid var(--blue); border-radius: 3px; background: #f2fbfc; color: var(--blue); box-shadow: 0 3px 18px #0002; opacity: 0; pointer-events: none; transform: translateY(8px); transition: opacity .15s, transform .15s; }
#toast.show { opacity: 1; transform: translateY(0); }

@media (max-width: 800px) {
  .topbar { align-items: flex-start; flex-direction: column; gap: 8px; padding: 13px 16px 9px; }
  .status { gap: 8px 12px; flex-wrap: wrap; }
  .controls { flex-wrap: wrap; padding: 0 16px 9px; }
  .cue-headers { grid-template-columns: 34px minmax(0, 1fr); gap: 10px; width: calc(100% - 20px); padding: 8px 10px 6px; }
  .cue-headers span:nth-child(2), .cue-headers span:nth-child(3) { grid-column: 2; }
  .cue-list { padding-inline: 10px; }
  .cue-row { grid-template-columns: 34px minmax(0, 1fr); gap: 10px; padding: 6px 10px; }
  .source, .translation, .flags { grid-column: 2; }
  .flags { min-height: 22px; }
  .cue-meta { display: none; }
  .cue-number { display: block; }
  footer { grid-template-columns: 1fr; gap: 8px; padding: 10px 16px; }
}
@media (max-width: 480px) {
  .controls { justify-content: flex-start; }
  .cue-row { gap: 7px; grid-template-columns: 26px minmax(0, 1fr); padding-inline: 7px; }
  .cue-headers { gap: 7px; grid-template-columns: 26px minmax(0, 1fr); }
  .fit-box { padding: 8px 7px; font-size: 14px; }
  .help { gap: 7px 10px; }
}
.go-to-dialog { width: min(360px, calc(100% - 32px)); padding: 20px; border: 1px solid var(--line); border-radius: 4px; background: var(--panel); color: var(--ink); box-shadow: 0 12px 40px #0003; }
.go-to-dialog::backdrop { background: #20232666; }
.go-to-dialog form { display: grid; gap: 12px; }
.go-to-dialog label { font-weight: 700; }
.go-to-dialog input { width: 100%; border: 1px solid var(--line); border-radius: 3px; padding: 8px 10px; font: inherit; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; }