:root { color: var(--tools-text); background: var(--tools-bg); font-family: var(--tools-sans); font-synthesis: none; text-rendering: optimizeLegibility; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: default; opacity: .55; }
[v-cloak] { display: none; }
.brand { display: inline-flex; align-items: center; color: inherit; text-decoration: none; }
main { width: min(1040px, calc(100% - 40px)); margin: 0 auto; }
.hero { max-width: 850px; margin: 42px auto 54px; text-align: center; }
.eyebrow, .step-label { margin: 0 0 12px; color: var(--tools-green-strong); font: 700 .75rem/1.3 var(--tools-mono); letter-spacing: .1em; text-transform: uppercase; }
.hero h1 { margin: 0; font: 500 clamp(2.75rem, 6vw, 5rem)/.99 var(--tools-serif); letter-spacing: -.055em; }
.hero-copy { max-width: 680px; margin: 24px auto 0; color: var(--tools-muted); font-size: 1.1rem; line-height: 1.7; }
.hero-proof { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 22px; padding: 0; margin: 22px 0 0; list-style: none; color: var(--tools-green-strong); font-size: .85rem; }
.hero-proof li { display: inline-flex; align-items: center; gap: 6px; }
.hero-proof svg { width: 16px; height: 16px; }
.workspace { border: 1px solid var(--tools-line); border-radius: 24px; background: var(--tools-surface); box-shadow: var(--tools-shadow); overflow: hidden; }
.empty-state { min-height: 430px; display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 16px 28px; padding: 38px 48px; align-content: center; }
.empty-state > :not(.empty-visual) { grid-column: 2; }
.empty-visual { grid-column: 1; grid-row: 1 / 7; align-self: center; width: 170px; height: auto; }
h2 { margin: 0 0 12px; font: 500 clamp(1.5rem, 3vw, 2rem)/1.15 var(--tools-serif); }
h3 { margin: 0 0 14px; font-size: 1.1rem; }
p { line-height: 1.6; }
.empty-copy > p:last-child, .hint { color: var(--tools-muted); margin: 8px 0 14px; }
.file-action { display: flex; justify-content: center; align-items: center; gap: 12px; min-height: 86px; padding: 16px; border: 0; border-radius: 12px; background: var(--tools-action); color: var(--tools-on-action); }
.file-action span:last-child { display: grid; gap: 5px; text-align: start; }
.file-action small { font-size: .85rem; }
.file-action svg { width: 26px; height: 26px; }
.example-action { justify-self: start; background: none; border: 0; min-height: 44px; padding: 0; color: var(--tools-green-strong); text-decoration: underline; }
summary { cursor: pointer; padding: 12px 0; color: var(--tools-green-strong); font-weight: 650; min-height: 44px; }
label { display: block; line-height: 1.5; font-weight: 600; }
input:not([type=checkbox]), select, textarea { display: block; width: 100%; min-width: 0; min-height: 46px; margin: 8px 0 14px; padding: 10px 12px; border: 1px solid var(--tools-line); border-radius: 9px; color: var(--tools-text); background: var(--tools-surface); }
input[type=file] { display: none; }
textarea { resize: vertical; font: .92rem/1.6 var(--tools-mono); }
.work-area { padding: 30px; }
.source-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-bottom: 24px; }
.filename { margin: 0; color: var(--tools-muted); overflow-wrap: anywhere; }
.option-panel { margin: 0 0 24px; padding: 22px; border: 1px solid var(--tools-line); border-radius: 14px; min-width: 0; }
legend { padding: 0 8px; font-weight: 700; }
.choice { display: flex; align-items: flex-start; gap: 10px; min-height: 44px; padding: 10px 0; font-weight: 500; }
input[type=checkbox] { width: 19px; height: 19px; flex-shrink: 0; margin: 2px 0; accent-color: var(--tools-action); }
.field-grid, .anchor-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 16px; }
.anchor-grid fieldset { min-width: 0; border: 1px solid var(--tools-line); border-radius: 10px; padding: 16px; }
.notice, .result-panel { padding: 18px; background: var(--tools-green-soft); border: 1px solid var(--tools-line); border-radius: 12px; }
.notice p { margin-top: 0; }
.notice label { margin-bottom: 0; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.button, .pager button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 46px; padding: 10px 18px; border: 1px solid var(--tools-line); border-radius: 10px; font-weight: 700; }
.button-primary { color: var(--tools-on-action); background: var(--tools-action); border-color: transparent; }
.button-secondary, .pager button { color: var(--tools-text); background: var(--tools-surface); }
.button-primary:hover, .file-action:hover { background: var(--tools-action-hover); }
.button svg { width: 19px; height: 19px; }
.issue-panel, .preview-panel, .result-panel { margin: 24px 0 0; }
.issue-list { list-style: none; padding: 0; }
.issue-list li { padding: 12px 0; border-bottom: 1px solid var(--tools-line); line-height: 1.5; }
.issue-list strong { color: var(--tools-green-strong); }
.issue-list .error strong, .error-message { color: var(--tools-red); }
.cue-list { list-style: none; padding: 0; }
.cue-list li { border-bottom: 1px solid var(--tools-line); padding: 16px 0; }
.cue-timing { display: flex; flex-wrap: wrap; gap: 8px 20px; color: var(--tools-muted); font-size: .86rem; }
.cue-timing > span { display: inline-flex; align-items: center; gap: 7px; font-family: var(--tools-mono); }
.cue-timing svg { width: 16px; height: 16px; }
pre { white-space: pre-wrap; overflow-wrap: anywhere; font: 1rem/1.6 var(--tools-mono); margin: 8px 0; }
.output-text { max-height: 360px; overflow: auto; }
.pager { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.pager span { white-space: nowrap; color: var(--tools-muted); }
.scope-note { max-width: 850px; margin: 24px auto 50px; color: var(--tools-muted); font-size: .92rem; }
.scope-note p { margin: 8px 0; }
.status, .error-message { margin: 20px 30px; }
:focus-visible { outline: 3px solid var(--tools-green-strong); outline-offset: 4px; }
@media (max-width: 620px) {
  main { width: calc(100% - 24px); }
  .hero { margin: 30px auto; }
  .hero h1 { font-size: clamp(2.4rem, 12vw, 3.4rem); }
  .hero-copy { font-size: 1rem; }
  .empty-state { padding: 24px 20px; grid-template-columns: 1fr; gap: 12px; }
  .empty-state > :not(.empty-visual), .empty-visual { grid-column: 1; }
  .empty-visual { grid-row: auto; width: 150px; justify-self: center; }
  .work-area { padding: 20px 16px; }
  .source-toolbar { align-items: start; flex-direction: column; }
  .field-grid, .anchor-grid { grid-template-columns: 1fr; gap: 8px; }
  .option-panel { padding: 16px; }
  .actions .button { width: 100%; }
  .pager button { padding: 10px; font-size: .9rem; }
}