ytdlp/app/static/styles.css

:root {
  color-scheme: dark;
  --background: #090a0c;
  --surface: #101216;
  --surface-raised: #15181d;
  --border: #242830;
  --border-strong: #363c47;
  --text: #f1f3f5;
  --muted: #9299a4;
  --quiet: #626974;
  --accent: #d9ff43;
  --accent-text: #111408;
  --danger: #ff6b6b;
  --radius: 14px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--background);
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 50% -20%, rgba(217, 255, 67, 0.07), transparent 34rem),
    var(--background);
}

button,
input {
  font: inherit;
}

a {
  color: inherit;
}

.site-header,
.page-shell,
footer {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  border-bottom: 1px solid var(--border);
}

.brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--text);
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.brand-mark {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 16px rgba(217, 255, 67, 0.45);
}

.environment {
  padding: 6px 9px;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.page-shell {
  min-height: calc(100vh - 142px);
}

.hero {
  max-width: 900px;
  padding: 104px 0 82px;
  transition: opacity 180ms ease, transform 180ms ease;
}

.hero.is-leaving {
  opacity: 0;
  transform: translateY(-10px);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(42px, 6vw, 74px);
  font-weight: 560;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.intro {
  max-width: 590px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.inspect-form {
  margin-top: 48px;
}

.input-shell {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding: 8px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.input-shell:focus-within {
  border-color: #59626f;
  box-shadow: 0 0 0 3px rgba(217, 255, 67, 0.08);
}

input {
  min-width: 0;
  padding: 15px 14px;
  color: var(--text);
  background: transparent;
  border: 0;
  outline: 0;
}

input::placeholder {
  color: var(--quiet);
}

button {
  position: relative;
  min-width: 142px;
  padding: 13px 18px;
  color: var(--accent-text);
  font-size: 13px;
  font-weight: 700;
  background: var(--accent);
  border: 0;
  border-radius: 9px;
  cursor: pointer;
  transition: filter 140ms ease, transform 140ms ease;
}

button:hover {
  filter: brightness(0.92);
}

button:active {
  transform: translateY(1px);
}

button:disabled {
  color: transparent;
  cursor: wait;
  filter: saturate(0.6);
}

.button-progress {
  position: absolute;
  top: calc(50% - 8px);
  left: calc(50% - 8px);
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(17, 20, 8, 0.3);
  border-top-color: var(--accent-text);
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

button:disabled .button-progress {
  display: block;
}

.form-note {
  margin: 12px 2px 0;
  color: var(--quiet);
  font-size: 12px;
}

.notice {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  padding: 14px 16px;
  color: #ffb4b4;
  background: rgba(255, 107, 107, 0.07);
  border: 1px solid rgba(255, 107, 107, 0.22);
  border-radius: 10px;
  font-size: 13px;
}

.notice-label {
  flex: none;
  color: var(--danger);
  font-weight: 700;
}

.result {
  padding: 72px 0 100px;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 220ms ease, transform 220ms ease;
}

.result.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.result.is-leaving {
  opacity: 0;
  transform: translateY(8px);
}

.result-heading {
  display: flex;
  gap: 24px;
  align-items: flex-end;
  justify-content: space-between;
  padding: 58px 0 30px;
}

.result-heading .eyebrow,
.formats-heading .eyebrow {
  margin-bottom: 12px;
}

h2 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 560;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.source-link {
  flex: none;
  padding-bottom: 3px;
  color: var(--muted);
  border-bottom: 1px solid var(--border-strong);
  font-size: 12px;
  text-decoration: none;
}

.result-actions {
  display: flex;
  flex: none;
  gap: 18px;
  align-items: center;
}

.text-button {
  min-width: 0;
  padding: 0 0 3px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 400;
  background: transparent;
  border-bottom: 1px solid var(--border-strong);
  border-radius: 0;
}

.text-button:hover {
  color: var(--text);
  filter: none;
}

.source-link:hover {
  color: var(--text);
  border-color: var(--text);
}

.source-card {
  display: grid;
  grid-template-columns: minmax(300px, 0.85fr) minmax(380px, 1.15fr);
  max-width: 920px;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.thumbnail-shell {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--surface-raised);
}

.thumbnail-shell img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumbnail-shell.no-image::after {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--quiet);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  content: "NO PREVIEW";
}

.duration {
  position: absolute;
  right: 12px;
  bottom: 12px;
  padding: 6px 8px;
  color: var(--text);
  background: rgba(9, 10, 12, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
}

.metadata {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 0;
  padding: 8px;
}

.metadata div {
  min-width: 0;
  padding: 18px 16px;
  border-bottom: 1px solid var(--border);
}

.metadata div:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.metadata dt {
  margin-bottom: 10px;
  color: var(--quiet);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.metadata dd {
  overflow: hidden;
  margin: 0;
  color: var(--text);
  font-size: 14px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.formats-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  margin-top: 68px;
}

h3 {
  margin: 0;
  font-size: 26px;
  font-weight: 570;
  letter-spacing: -0.03em;
}

.formats-heading > p {
  margin: 0 0 2px;
  color: var(--quiet);
  font-size: 12px;
}

.output-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 22px;
}

.output-option {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 22px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.option-index {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.option-copy h4 {
  margin: 0;
  font-size: 17px;
  font-weight: 620;
  letter-spacing: -0.02em;
}

.option-copy p {
  max-width: 370px;
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.option-specs {
  display: flex;
  grid-column: 1 / -1;
  gap: 8px;
  flex-wrap: wrap;
  margin: 2px 0 0 32px;
}

.option-specs div {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  padding: 7px 9px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border);
  border-radius: 7px;
}

.option-specs dt,
.option-specs dd {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
}

.option-specs dt {
  color: var(--quiet);
  text-transform: uppercase;
}

.option-specs dd {
  color: var(--text);
}

footer {
  display: flex;
  justify-content: space-between;
  padding: 24px 0 30px;
  color: var(--quiet);
  border-top: 1px solid var(--border);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

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

[hidden] {
  display: none !important;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 760px) {
  .site-header,
  .page-shell,
  footer {
    width: min(100% - 28px, 1180px);
  }

  .hero {
    padding: 72px 0 62px;
  }

  h1 {
    font-size: clamp(40px, 13vw, 58px);
  }

  .input-shell {
    grid-template-columns: 1fr;
  }

  button {
    min-height: 48px;
  }

  .result-heading,
  .formats-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .result-actions {
    margin-top: -8px;
  }

  .source-card {
    grid-template-columns: 1fr;
  }

  .output-options {
    grid-template-columns: 1fr;
  }

  .metadata div {
    padding: 20px 14px;
  }

  .formats-heading > p {
    margin-top: -10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}