:root {
  color-scheme: light;
  --ink: #17151c;
  --muted: #5d5966;
  --line: #e4e0ea;
  --paper: #fbfaf7;
  --card: #ffffff;
  --accent: #2b2240;
  --error: #b3261e;
  font-family:
    system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    sans-serif;
  line-height: 1.5;
  color: var(--ink);
  background: var(--paper);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--accent);
}

.site-header,
main,
.site-footer {
  width: 100%;
  max-width: 44rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-header {
  padding-top: 1.5rem;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.18em;
  text-decoration: none;
  color: var(--ink);
}

main {
  flex: 1;
  padding-top: 2.5rem;
  padding-bottom: 3rem;
}

h1 {
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  line-height: 1.15;
  margin: 0 0 0.75rem;
}

.lead {
  color: var(--muted);
  margin: 0 0 2rem;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.field,
.share {
  display: flex;
  gap: 0.5rem;
}

input[type='text'] {
  flex: 1;
  min-width: 0;
  font: inherit;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  background: var(--card);
  color: var(--ink);
}

input[type='text']:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 3px solid #8f7cc4;
  outline-offset: 2px;
}

button {
  font: inherit;
  font-weight: 600;
  padding: 0.75rem 1.1rem;
  border: 0;
  border-radius: 0.6rem;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  white-space: nowrap;
}

button:disabled {
  opacity: 0.6;
  cursor: progress;
}

.hint,
.notice,
.site-footer {
  color: var(--muted);
  font-size: 0.9rem;
}

.hint {
  margin: 0.5rem 0 0;
}

.status {
  min-height: 1.5rem;
  margin: 1rem 0;
}

.status.error {
  color: var(--error);
}

.result {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.5rem;
}

.song {
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: var(--card);
}

.song-name {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
}

.song-by {
  color: var(--muted);
  font-weight: 400;
}

.video {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 0.9rem;
  align-items: start;
}

.video-top {
  grid-template-columns: minmax(0, 320px) 1fr;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: var(--card);
  margin-bottom: 0.75rem;
}

.thumb img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0.5rem;
}

.details {
  display: grid;
  gap: 0.2rem;
}

.video-title {
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}

.video-title:hover {
  text-decoration: underline;
}

.channel {
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.watch {
  font-size: 0.9rem;
  margin-top: 0.3rem;
}

.share {
  margin-bottom: 1.5rem;
}

.share input {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9rem;
}

.more-videos {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.attribution {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.75rem;
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.youtube {
  display: inline-flex;
  align-items: center;
  margin-right: 0.5rem;
}

.site-footer {
  padding-top: 1.5rem;
  padding-bottom: 2rem;
  border-top: 1px solid var(--line);
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.1rem;
}

.site-footer p {
  margin: 0.75rem 0 0;
}

.policy h1 {
  margin-bottom: 0.25rem;
}

.policy h2 {
  font-size: 1.15rem;
  margin: 2rem 0 0.5rem;
}

.policy .updated {
  color: var(--muted);
  margin: 0 0 1.5rem;
}

@media (max-width: 34rem) {
  .field,
  .share {
    flex-direction: column;
  }

  .video {
    grid-template-columns: 120px 1fr;
  }

  .video-top {
    grid-template-columns: 1fr;
  }
}