:root {
  --tool-navy: #071a3d;
  --tool-blue: #2563eb;
  --tool-blue-dark: #174aa8;
  --tool-ink: #111827;
  --tool-muted: #5f6875;
  --tool-line: #dfe4ec;
  --tool-paper: #ffffff;
  --tool-soft: #eef1f5;
  --tool-success: #16865f;
  --tool-danger: #b4232f;
  --tool-ease: cubic-bezier(.2,.75,.2,1);
}

.tool-hero { padding: 68px 0 88px; }
.tool-hero-grid { display: grid; grid-template-columns: minmax(0,.82fr) minmax(420px,1.18fr); gap: 64px; align-items: center; }
.tool-hero-copy h1 { max-width: 680px; }
.tool-hero-copy > p { max-width: 620px; margin: 24px 0 0; color: var(--tool-muted); font-size: 18px; }
.tool-trust { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 24px; color: #4f5967; font-size: 13px; font-weight: 700; }
.tool-trust span { display: inline-flex; align-items: center; gap: 8px; }
.tool-trust span::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--tool-success); }

.tool-panel { overflow: hidden; border: 1px solid var(--tool-line); border-radius: 20px; background: var(--tool-paper); box-shadow: 0 24px 64px rgba(7,26,61,.12); }
.tool-panel-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px 22px; color: #fff; background: var(--tool-navy); }
.tool-panel-head strong { font-size: 14px; }
.tool-panel-head span { color: #bfcbe0; font-size: 12px; }
.tool-body { padding: 24px; }
.tool-upload { min-height: 260px; display: grid; place-items: center; padding: 30px; border: 2px dashed #aeb8c7; border-radius: 14px; background: #f8f9fb; text-align: center; cursor: pointer; transition: border-color .18s var(--tool-ease), background .18s var(--tool-ease), transform .18s var(--tool-ease); }
.tool-upload[hidden] { display: none; }
.tool-upload:hover, .tool-upload.is-dragging { border-color: var(--tool-blue); background: #f2f6ff; transform: translateY(-2px); }
.tool-upload:focus-visible { outline: 3px solid rgba(37,99,235,.3); outline-offset: 3px; }
.tool-upload.is-error { border-style: solid; border-color: var(--tool-danger); background: #fff6f6; }
.tool-upload-inner { max-width: 390px; }
.tool-upload-mark { width: 58px; height: 58px; display: grid; place-items: center; margin: 0 auto 18px; border-radius: 14px; color: #fff; background: var(--tool-blue); font-size: 22px; font-weight: 900; }
.tool-upload h2 { margin: 0; font-size: 24px; line-height: 1.18; letter-spacing: -.025em; }
.tool-upload p { margin: 9px 0 18px; color: var(--tool-muted); font-size: 14px; }
.tool-upload input { position: absolute; width: 1px; height: 1px; overflow: hidden; opacity: 0; pointer-events: none; }
.tool-upload-button { min-height: 46px; border: 0; border-radius: 10px; padding: 0 20px; color: #fff; background: var(--tool-blue); font: inherit; font-size: 13px; font-weight: 800; cursor: pointer; }
.tool-upload-button:hover { background: var(--tool-blue-dark); }
.tool-upload-note { display: block; margin-top: 13px; color: #77808d; font-size: 11px; }
.tool-error { margin: 14px 0 0; color: var(--tool-danger); font-size: 13px; font-weight: 700; }

.tool-result[hidden] { display: none; }
.tool-result { padding: 0 24px 26px; }
.tool-result-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; padding: 22px 0 18px; border-top: 1px solid var(--tool-line); }
.tool-result-head h2 { margin: 0; font-size: 23px; letter-spacing: -.025em; }
.tool-result-head p { margin: 5px 0 0; color: var(--tool-muted); font-size: 13px; overflow-wrap: anywhere; }
.tool-reset { min-height: 40px; flex: 0 0 auto; border: 1px solid var(--tool-line); border-radius: 9px; padding: 0 14px; color: var(--tool-ink); background: #fff; font: inherit; font-size: 12px; font-weight: 800; cursor: pointer; }
.tool-reset:hover { background: var(--tool-soft); }
.metric-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 10px; }
.metric { min-width: 0; padding: 16px; border-radius: 12px; background: var(--tool-soft); }
.metric span { display: block; color: var(--tool-muted); font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.metric strong { display: block; overflow-wrap: anywhere; margin-top: 5px; color: var(--tool-ink); font-size: 17px; line-height: 1.25; }
.metadata-result-grid { display: grid; grid-template-columns: minmax(0,1.08fr) minmax(280px,.92fr); gap: 16px; align-items: stretch; }
.metadata-preview { min-height: 330px; display: grid; place-items: center; overflow: hidden; border-radius: 14px; background: #070a10; }
.metadata-preview video { display: block; width: 100%; height: 100%; max-height: 460px; object-fit: contain; background: #070a10; }
.metadata-result .metric-grid { grid-template-columns: repeat(2,minmax(0,1fr)); align-content: start; }
.metadata-result .metric-wide { grid-column: 1 / -1; }
.tool-disclaimer { margin: 14px 0 0; color: #6a7380; font-size: 11px; line-height: 1.55; }

.video-workspace { display: grid; gap: 16px; }
.tool-video { width: 100%; max-height: 470px; border-radius: 14px; background: #06080d; }
.timeline-control { display: grid; grid-template-columns: 72px minmax(0,1fr) 72px; gap: 12px; align-items: center; }
.timeline-control span { color: var(--tool-muted); font-size: 12px; font-weight: 800; font-variant-numeric: tabular-nums; }
.timeline-control span:last-child { text-align: right; }
.timeline-control input { width: 100%; accent-color: var(--tool-blue); }
.tool-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.tool-action { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; border: 0; border-radius: 10px; padding: 0 18px; color: #fff; background: var(--tool-blue); font: inherit; font-size: 13px; font-weight: 800; cursor: pointer; }
.tool-action:hover { background: var(--tool-blue-dark); }
.tool-action.secondary { color: var(--tool-ink); background: var(--tool-soft); }
.tool-action.secondary:hover { background: #dfe5ed; }
.tool-action:disabled { opacity: .48; cursor: not-allowed; }
.frame-output { overflow: hidden; border: 1px solid var(--tool-line); border-radius: 14px; background: #0a0d14; }
.frame-output canvas { display: block; width: 100%; height: auto; }
.frame-placeholder { min-height: 180px; display: grid; place-items: center; padding: 24px; color: #aab4c4; text-align: center; font-size: 13px; }

.safe-stage { --video-aspect: 9 / 16; --stage-max-width: 315px; position: relative; width: min(100%, var(--stage-max-width)); aspect-ratio: var(--video-aspect); margin-inline: auto; overflow: hidden; border-radius: 14px; background: #070a10; }
.safe-stage video { display: block; width: 100%; height: 100%; object-fit: contain; }
.safe-overlay { --safe-top: 10%; --safe-right: 16%; --safe-bottom: 20%; --safe-left: 6%; position: absolute; inset: 0; pointer-events: none; }
.unsafe { position: absolute; background: rgba(7,26,61,.58); backdrop-filter: blur(1px); }
.unsafe.top { top: 0; right: 0; left: 0; height: var(--safe-top); }
.unsafe.right { top: var(--safe-top); right: 0; bottom: var(--safe-bottom); width: var(--safe-right); }
.unsafe.bottom { right: 0; bottom: 0; left: 0; height: var(--safe-bottom); }
.unsafe.left { top: var(--safe-top); bottom: var(--safe-bottom); left: 0; width: var(--safe-left); }
.safe-outline { position: absolute; top: var(--safe-top); right: var(--safe-right); bottom: var(--safe-bottom); left: var(--safe-left); border: 2px solid rgba(255,255,255,.92); box-shadow: 0 0 0 1px rgba(7,26,61,.35); }
.safe-outline span { position: absolute; top: 9px; left: 10px; padding: 5px 8px; border-radius: 6px; color: #fff; background: rgba(7,26,61,.82); font-size: 10px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.preset-row { display: flex; flex-wrap: wrap; gap: 8px; }
.preset-button { min-height: 40px; border: 1px solid var(--tool-line); border-radius: 9px; padding: 0 14px; color: var(--tool-ink); background: #fff; font: inherit; font-size: 12px; font-weight: 800; cursor: pointer; }
.preset-button:hover, .preset-button[aria-pressed="true"] { border-color: var(--tool-blue); color: var(--tool-blue-dark); background: #edf4ff; }
.preset-note { margin: -7px 0 0; color: var(--tool-muted); font-size: 11px; line-height: 1.45; }
.safe-controls { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; padding: 16px; border-radius: 14px; background: var(--tool-soft); }
.safe-control { display: grid; grid-template-columns: 68px minmax(0,1fr) 38px; gap: 9px; align-items: center; }
.safe-control label, .safe-control output { font-size: 11px; font-weight: 800; }
.safe-control output { text-align: right; font-variant-numeric: tabular-nums; }
.safe-control input { width: 100%; accent-color: var(--tool-blue); }

.tool-hub-hero { padding: 76px 0 62px; }
.tool-hub-hero h1 { max-width: 880px; }
.tool-hub-hero p { max-width: 720px; margin: 24px 0 0; color: var(--tool-muted); font-size: 19px; }
.tool-directory { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
.tool-directory-card { min-height: 310px; display: flex; flex-direction: column; padding: 28px; border: 1px solid var(--tool-line); border-radius: 18px; background: #fff; transition: transform .18s var(--tool-ease), box-shadow .18s var(--tool-ease); }
.tool-directory-card:hover { transform: translateY(-4px); box-shadow: 0 18px 42px rgba(7,26,61,.1); }
.tool-directory-card small { color: var(--tool-blue-dark); font-size: 11px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.tool-directory-card h2 { margin: 42px 0 12px; font-size: 27px; line-height: 1.08; letter-spacing: -.035em; }
.tool-directory-card p { margin: 0; color: var(--tool-muted); font-size: 14px; }
.tool-directory-card span { margin-top: auto; padding-top: 28px; color: var(--tool-blue-dark); font-size: 13px; font-weight: 800; }

@media (max-width: 920px) {
  .tool-hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .tool-directory { grid-template-columns: 1fr 1fr; }
  .metadata-result-grid { grid-template-columns: 1fr; }
  .metadata-preview { min-height: 280px; }
}

@media (max-width: 640px) {
  .tool-hero { padding: 48px 0 68px; }
  .tool-hero-grid { grid-template-columns: minmax(0,1fr); }
  .tool-panel-head { align-items: flex-start; flex-direction: column; gap: 3px; }
  .tool-body, .tool-result { padding-inline: 16px; }
  .tool-upload { min-height: 230px; padding: 22px 16px; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .metadata-result .metric-grid { grid-template-columns: 1fr 1fr; }
  .metadata-preview { min-height: 220px; }
  .timeline-control { grid-template-columns: 55px minmax(0,1fr) 55px; }
  .tool-actions .tool-action { flex: 1 1 150px; }
  .safe-controls, .tool-directory { grid-template-columns: 1fr; }
  .tool-hub-hero { padding: 50px 0 46px; }
}

@media (prefers-reduced-motion: reduce) {
  .tool-upload, .tool-directory-card { transition-duration: .01ms !important; }
}