:root {
  color-scheme: light;
  --accent: #174fe6;
  --accent-dark: #0f3fc1;
  --ink: #101114;
  --muted: #626979;
  --line: #d9dde5;
  --soft: #f5f6f8;
  --danger: #a32d21;
  --radius: 7px;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }

html { background: #fff; color: var(--ink); }

body {
  margin: 0;
  min-width: 320px;
  background: #fff;
  font-size: 15px;
  line-height: 1.5;
}

button,
input,
a { font: inherit; }

button,
a { -webkit-tap-highlight-color: transparent; }

button { color: inherit; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }

button:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(23, 79, 230, .25);
  outline-offset: 2px;
}

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

.site-header {
  min-height: 58px;
  padding: 0 24px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  color: var(--ink);
  font-size: 20px;
  font-weight: 720;
  letter-spacing: -.025em;
  text-decoration: none;
}

.brand strong { color: var(--accent); }

.site-header nav,
footer div {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-header nav button,
footer button {
  padding: 6px 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.page-grid {
  width: min(100%, 1510px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(150px, 1fr) minmax(0, 960px) minmax(150px, 1fr);
  align-items: stretch;
}

main {
  grid-column: 2;
  min-width: 0;
  padding: 32px 28px 22px;
  border-inline: 1px solid var(--line);
}

.intro { text-align: center; }

h1,
h2,
h3,
p { margin-top: 0; }

h1 {
  margin-bottom: 8px;
  font-size: clamp(28px, 3vw, 39px);
  line-height: 1.12;
  letter-spacing: -.045em;
}

.intro > p {
  max-width: 770px;
  margin: 0 auto;
  color: var(--muted);
}

#source-form { margin-top: 22px; text-align: left; }

.source-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

#source-url {
  width: 100%;
  min-height: 54px;
  padding: 0 16px;
  border: 1px solid #b9c0cc;
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  font-size: 16px;
}

#source-url::placeholder { color: #7c8492; }

.button,
.enhance button,
.viewer-controls button {
  min-height: 42px;
  border: 1px solid #b9c0cc;
  border-radius: var(--radius);
  background: #fff;
  cursor: pointer;
  text-decoration: none;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  font-weight: 680;
}

.button-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.button-primary:hover { background: var(--accent-dark); }

.button[aria-disabled="true"],
button:disabled { cursor: not-allowed; opacity: .55; }

#get-media { min-width: 148px; }

.trust-line {
  margin: 11px 2px 0;
  color: #394150;
  font-size: 13px;
}

.check-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-top: 15px;
  color: #343a45;
  font-size: 13px;
}

.check-row input {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 1px 0 0;
  accent-color: var(--accent);
}

.text-button {
  display: inline;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.form-status {
  min-height: 22px;
  margin: 8px 2px 0;
  color: var(--danger);
  font-size: 13px;
  font-weight: 620;
}

.ad-rail { padding: 30px 22px; }
.ad-rail-left { grid-column: 1; }
.ad-rail-right { grid-column: 3; }

.ad {
  border: 1px solid #e4e7ec;
  background: var(--soft);
  color: var(--ink);
  text-align: center;
  text-decoration: none;
}

.ad:hover { border-color: #bdc5d2; }

.ad span,
.ad strong,
.ad small,
.ad i { display: block; }

.ad span {
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
}

.ad strong {
  font-size: 20px;
  line-height: 1.2;
}

.ad small { color: var(--muted); }

.ad i { color: #737b89; font-style: normal; }

.ad-vertical {
  position: sticky;
  top: 24px;
  min-height: 600px;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.ad-vertical span { position: absolute; top: 15px; }
.ad-vertical i { position: absolute; bottom: 18px; }

.mobile-ad { display: none; }

.workspace {
  margin-top: 4px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
}

.empty-state {
  min-height: 300px;
  border: 1px dashed #bfc5cf;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 28px;
  text-align: center;
}

.empty-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid #aeb5c0;
  border-radius: 50%;
  color: var(--muted);
  font-size: 21px;
}

.empty-state h2 { margin: 12px 0 3px; font-size: 18px; }
.empty-state p { margin-bottom: 0; color: var(--muted); }

.result {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 284px;
  gap: 24px;
  align-items: start;
}

.media-column { min-width: 0; }

.media-stage {
  --zoom: 1;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  display: grid;
  place-items: center;
  background: #0c0d10;
  border-radius: var(--radius);
}

.media-stage video,
.media-stage img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform: scale(var(--zoom));
  transform-origin: center;
}

.media-stage img { background: #f0f2f5; }

.viewer-controls {
  margin-top: 9px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.viewer-controls button {
  min-width: 40px;
  min-height: 36px;
  padding: 0 10px;
  font-size: 13px;
}

.viewer-controls label {
  min-height: 36px;
  padding: 0 9px;
  border: 1px solid #b9c0cc;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 12px;
}

.viewer-controls input[type="number"] {
  width: 52px;
  border: 0;
  background: transparent;
  color: var(--ink);
}

.viewer-controls output { min-width: 28px; text-align: center; font-size: 13px; }

.platform-name {
  margin: 2px 0 3px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.result-info h2 {
  margin-bottom: 3px;
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: -.02em;
}

.result-author { margin-bottom: 15px; color: var(--accent); }

.result-info dl {
  margin: 0 0 16px;
  padding-block: 12px;
  border-block: 1px solid var(--line);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 7px 14px;
  font-size: 13px;
}

.result-info dt { color: var(--muted); }
.result-info dd { margin: 0; text-align: right; font-weight: 620; }

.download-actions { display: grid; gap: 8px; }
.download-actions .button { width: 100%; min-height: 46px; }

.carousel {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}

.carousel-item {
  margin: 0;
  display: grid;
  gap: 7px;
}

.carousel-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--soft);
}

.carousel-item .button { min-height: 38px; font-size: 13px; }

.enhance {
  grid-column: 1 / -1;
  margin-top: 2px;
  padding: 14px 16px 15px;
  border: 1px solid #cbd7f5;
  border-radius: var(--radius);
  background: #fafbff;
}

.enhance-copy {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.enhance h3 { margin: 0; font-size: 17px; white-space: nowrap; }
.enhance-copy p { margin: 0; color: var(--muted); font-size: 12px; }
.enhance .check-row { margin: 12px 0; }

.enhance-options {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 18px;
}

.enhance fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.enhance legend {
  width: 100%;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}

.enhance button,
.enhance fieldset label {
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid #aeb7c5;
  border-radius: 5px;
  background: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #172033;
  font-size: 13px;
}

.enhance fieldset label:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.enhance fieldset input { position: absolute; opacity: 0; pointer-events: none; }

.progress-row {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
}

progress {
  width: 100%;
  height: 7px;
  overflow: hidden;
  border: 0;
  border-radius: 99px;
  background: #dce0e8;
}

progress::-webkit-progress-bar { background: #dce0e8; }
progress::-webkit-progress-value { background: var(--accent); }
progress::-moz-progress-bar { background: var(--accent); }

.enhance-status { margin: 7px 0 0; color: var(--muted); font-size: 12px; }

.enhanced-result {
  margin-top: 14px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
}

.enhanced-result video { width: 100%; max-height: 300px; background: #000; }

.bottom-ad { padding-top: 16px; }

.ad-horizontal {
  min-height: 84px;
  padding: 12px 20px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 2px;
}

.ad-horizontal strong { font-size: 18px; }

footer {
  width: min(100% - 48px, 960px);
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  color: var(--muted);
  font-size: 12px;
}

footer a,
footer button { color: var(--accent); }
footer p { margin: 0; text-align: right; }

dialog {
  width: min(680px, calc(100% - 32px));
  max-height: min(760px, calc(100vh - 32px));
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 24px 70px rgba(15, 23, 42, .2);
}

dialog::backdrop { background: rgba(16, 17, 20, .52); }

.dialog-card { padding: 24px; overflow: auto; }

.dialog-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 18px;
}

.dialog-head h2 { margin: 0; font-size: 25px; letter-spacing: -.03em; }

.dialog-head button {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #fff;
  cursor: pointer;
  font-size: 24px;
  line-height: 1;
}

.dialog-card p { color: #424957; }
.dialog-card > .button { min-width: 96px; }

[hidden] { display: none !important; }

@media (max-width: 1180px) {
  .page-grid { grid-template-columns: minmax(0, 960px); justify-content: center; }
  main { grid-column: 1; border-inline: 0; }
  .ad-rail { display: none; }
  .mobile-ad { display: block; margin-top: 10px; }
}

@media (max-width: 720px) {
  body { font-size: 14px; }

  .site-header { min-height: 58px; padding: 0 16px; }
  .brand { font-size: 18px; }
  .site-header nav { gap: 15px; }

  main { padding: 28px 16px 18px; }

  h1 { font-size: 31px; }
  .intro > p { font-size: 14px; }

  .source-row { grid-template-columns: 1fr; }
  #source-url,
  #get-media { width: 100%; }
  #get-media { min-height: 50px; }

  .mobile-ad { margin-top: 6px; }
  .ad-horizontal { min-height: 92px; }

  .workspace { padding-block: 16px; }
  .empty-state { min-height: 240px; }

  .result { grid-template-columns: 1fr; gap: 16px; }
  .result-info { display: contents; }
  .result-info .platform-name,
  .result-info h2,
  .result-info .result-author,
  .result-info dl,
  .result-info .download-actions { grid-column: 1; }
  .result-info dl { margin-bottom: 0; }

  .viewer-controls { display: grid; grid-template-columns: repeat(4, auto) 1fr; }
  .viewer-controls label { grid-column: span 2; }

  .carousel { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .enhance-copy { display: block; }
  .enhance h3 { margin-bottom: 4px; }
  .enhance-options { grid-template-columns: 1fr; gap: 13px; }
  .enhance button,
  .enhance fieldset label { flex: 1 1 auto; min-height: 42px; }

  .enhanced-result { grid-template-columns: 1fr; }
  .enhanced-result .button { width: 100%; }

  footer {
    width: calc(100% - 32px);
    padding: 18px 0 24px;
    display: block;
  }
  footer div { gap: 22px; }
  footer p { margin-top: 14px; text-align: left; }

  .dialog-card { padding: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}