:root {
  color-scheme: light;
  --paper: #e9e7df;
  --ink: #141512;
  --muted: #6d6d65;
  --line: #b9b8b0;
  --signal: #d8ff3e;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  background:
    linear-gradient(rgba(20, 21, 18, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 21, 18, .035) 1px, transparent 1px),
    var(--paper);
  background-size: 24px 24px;
  color: var(--ink);
  font-family: "Manrope", sans-serif;
}
button { font: inherit; }

.video-board { width: min(1180px, calc(100% - 32px)); min-height: 100vh; margin: 0 auto; padding: 22px 0 18px; }
.video-header { min-height: 116px; display: grid; grid-template-columns: 180px minmax(0, 1fr) 150px; align-items: center; gap: 24px; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--ink); }
.back-link { color: var(--ink); font: 500 10px "DM Mono", monospace; letter-spacing: .08em; text-decoration: none; }
.back-link:hover, .back-link:focus-visible { text-decoration: underline; text-underline-offset: 4px; outline: 0; }
.section-label { color: var(--muted); font: 500 10px "DM Mono", monospace; letter-spacing: .1em; }
.section-label span { margin-right: 9px; color: var(--ink); }
.video-title h1 { margin: 5px 0 2px; font-size: clamp(29px, 4vw, 45px); line-height: .95; letter-spacing: -.055em; }
.video-title p { margin: 7px 0 0; color: var(--muted); font: 500 9px "DM Mono", monospace; letter-spacing: .05em; text-transform: uppercase; }
.chart-tools { display: flex; align-items: center; gap: 10px; margin-top: 9px; }
.chart-tabs, .region-tabs { display: flex; flex: 0 0 auto; gap: 4px; }
.region-tabs[hidden] { display: none; }
.chart-tabs button, .region-tabs button { padding: 4px 7px; border: 1px solid var(--ink); background: transparent; color: var(--ink); cursor: pointer; font: 500 7px "DM Mono", monospace; }
.chart-tabs button[aria-selected="true"], .region-tabs button[aria-pressed="true"] { background: var(--signal); }
.chart-tabs button:hover, .chart-tabs button:focus-visible, .region-tabs button:hover, .region-tabs button:focus-visible { outline: 1px solid var(--ink); outline-offset: 2px; }
.chart-search { min-width: 0; display: flex; align-items: center; gap: 6px; border-bottom: 1px solid var(--ink); }
.chart-search span { color: var(--muted); font: 500 7px "DM Mono", monospace; letter-spacing: .08em; }
.chart-search input { width: 155px; padding: 3px 1px; border: 0; outline: 0; background: transparent; color: var(--ink); font: 500 8px "DM Mono", monospace; }
.chart-search input::placeholder { color: var(--muted); opacity: .7; }
.chart-summary { justify-self: end; text-align: right; }
.chart-summary strong, .chart-summary span { display: block; }
.chart-summary strong { font-size: 31px; line-height: .9; letter-spacing: -.04em; }
.chart-summary span { margin-top: 4px; color: var(--muted); font: 500 8px "DM Mono", monospace; letter-spacing: .08em; }
.chart-summary button { margin-top: 9px; padding: 4px 7px; border: 1px solid var(--ink); background: transparent; color: var(--ink); cursor: pointer; font: 500 7px "DM Mono", monospace; }
.chart-summary button:hover, .chart-summary button:focus-visible { background: var(--signal); outline: 1px solid var(--ink); outline-offset: 2px; }
.chart-summary button:disabled { opacity: .45; cursor: wait; }

.video-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 18px; }
.video-card { min-width: 0; display: grid; grid-template-columns: 30px 136px minmax(0, 1fr); gap: 10px; align-items: center; min-height: 132px; padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.video-card:hover .video-copy h2, .video-card:focus-visible .video-copy h2 { text-decoration: underline; text-underline-offset: 3px; }
.video-card:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
.tag-card { min-width: 0; display: grid; grid-template-columns: 30px minmax(0, 1fr) auto; gap: 10px; align-items: center; min-height: 88px; padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; }
.tag-card:hover .tag-copy strong, .tag-card:focus-visible .tag-copy strong { text-decoration: underline; text-underline-offset: 3px; }
.tag-card:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
.tag-copy { min-width: 0; }
.tag-copy strong, .tag-copy span { display: block; }
.tag-copy strong { overflow: hidden; font-size: 16px; line-height: 1.05; letter-spacing: -.025em; white-space: nowrap; text-overflow: ellipsis; }
.tag-copy strong::before { content: "#"; color: var(--muted); }
.tag-copy span, .tag-views { margin-top: 5px; color: var(--muted); font: 500 7px "DM Mono", monospace; white-space: nowrap; }
.tag-views { margin-top: 0; text-align: right; }
.ideas-panel { grid-column: 1 / -1; padding: 18px 0 6px; border-bottom: 1px solid var(--ink); }
.ideas-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 11px; }
.ideas-heading strong { font-size: 18px; letter-spacing: -.035em; }
.ideas-heading span { color: var(--muted); font: 500 7px "DM Mono", monospace; text-align: right; }
.idea-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.idea-card { min-width: 0; min-height: 108px; padding: 11px; border: 1px solid var(--line); background: transparent; color: var(--ink); text-align: left; cursor: pointer; }
.idea-card:hover, .idea-card:focus-visible { border-color: var(--ink); background: rgba(216, 255, 62, .18); outline: 1px solid var(--ink); outline-offset: 2px; }
.idea-card span, .idea-card small { display: block; font: 500 7px "DM Mono", monospace; }
.idea-card span { color: var(--muted); letter-spacing: .08em; }
.idea-card strong { display: block; margin-top: 7px; font-size: 13px; line-height: 1.2; letter-spacing: -.02em; }
.idea-card small { margin-top: 8px; color: var(--muted); line-height: 1.35; }
.rank { align-self: start; padding-top: 2px; color: var(--muted); font: 500 10px "DM Mono", monospace; }
.thumb { position: relative; overflow: hidden; aspect-ratio: 16 / 9; background: var(--line); }
.thumb img { width: 100%; height: 100%; display: block; object-fit: cover; filter: saturate(.75) contrast(1.05); }
.duration { position: absolute; right: 4px; bottom: 4px; padding: 2px 4px; background: var(--ink); color: var(--paper); font: 500 7px "DM Mono", monospace; }
.live { position: absolute; left: 4px; top: 4px; padding: 2px 4px; background: var(--signal); color: var(--ink); font: 500 7px "DM Mono", monospace; }
.video-copy { min-width: 0; }
.video-copy h2 { display: -webkit-box; overflow: hidden; margin: 0; font-size: 13px; line-height: 1.2; letter-spacing: -.02em; -webkit-box-orient: vertical; -webkit-line-clamp: 3; }
.channel { overflow: hidden; margin: 7px 0 0; color: var(--ink); font: 500 8px "DM Mono", monospace; white-space: nowrap; text-overflow: ellipsis; }
.channel::before { content: "CHANNEL · "; color: var(--muted); }
.video-meta { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; margin-top: 7px; }
.video-meta strong { font-size: 13px; line-height: 1; }
.video-meta span { color: var(--muted); font: 500 7px "DM Mono", monospace; white-space: nowrap; }
.chart-message { grid-column: 1 / -1; min-height: 300px; display: grid; place-items: center; color: var(--muted); font: 500 11px "DM Mono", monospace; text-transform: uppercase; }
footer { min-height: 32px; display: flex; align-items: center; gap: 16px; color: var(--muted); font: 500 8px "DM Mono", monospace; letter-spacing: .08em; text-transform: uppercase; }
footer span:first-child { margin-right: auto; color: var(--ink); }
.refresh-dot { width: 7px; height: 7px; border: 1px solid var(--muted); border-radius: 50%; background: var(--signal); animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: .35; } }

@media (max-width: 980px) {
  .video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .video-header { grid-template-columns: 140px minmax(0, 1fr) 110px; }
}

@media (max-width: 650px) {
  .video-board { width: min(100% - 20px, 1180px); padding-top: 10px; }
  .video-header { grid-template-columns: 1fr auto; gap: 10px; padding: 12px 0; }
  .back-link { grid-column: 1; grid-row: 1; }
  .chart-summary { grid-column: 2; grid-row: 1 / 3; }
  .video-title { grid-column: 1; grid-row: 2; }
  .video-title h1 { font-size: 28px; }
  .video-title p { max-width: 270px; line-height: 1.5; }
  .chart-tools { flex-wrap: wrap; }
  .chart-search input { width: 112px; }
  .video-grid { display: block; }
  .ideas-panel { padding-top: 12px; }
  .idea-list { grid-template-columns: 1fr; }
  .idea-card { min-height: 0; }
  .video-card { grid-template-columns: 26px 120px minmax(0, 1fr); min-height: 112px; padding: 11px 0; }
  .tag-card { grid-template-columns: 26px minmax(0, 1fr); min-height: 78px; padding: 10px 0; }
  .tag-views { grid-column: 2; text-align: left; }
  .video-copy h2 { font-size: 12px; -webkit-line-clamp: 2; }
}

@media (width: 800px) and (height: 480px) {
  .video-board { width: 784px; height: 480px; min-height: 480px; padding: 7px 0; overflow: hidden; }
  .video-header { min-height: 64px; grid-template-columns: 105px minmax(0, 1fr) 90px; gap: 12px; }
  .section-label, .back-link { font-size: 7px; }
  .video-title h1 { margin-top: 2px; font-size: 25px; }
  .video-title p { margin-top: 3px; font-size: 6px; }
  .chart-tools { gap: 4px; margin-top: 3px; }
  .chart-tabs, .region-tabs { gap: 2px; }
  .chart-tabs button, .region-tabs button { padding: 2px 4px; font-size: 5px; }
  .chart-search { gap: 3px; }
  .chart-search span { display: none; }
  .chart-search input { width: 86px; padding: 1px 0; font-size: 5px; }
  .chart-summary strong { font-size: 21px; }
  .chart-summary span { font-size: 6px; }
  .chart-summary button { display: none; }
  .video-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 10px; }
  .ideas-panel { display: none; }
  .video-card { grid-template-columns: 18px 80px minmax(0, 1fr); gap: 5px; min-height: 119px; padding: 7px 0; }
  .tag-card { grid-template-columns: 18px minmax(0, 1fr); gap: 5px; min-height: 88px; padding: 6px 0; }
  .tag-card:nth-child(n+13) { display: none; }
  .tag-copy strong { font-size: 10px; }
  .tag-copy span, .tag-views { margin-top: 3px; font-size: 5px; }
  .tag-views { grid-column: 2; text-align: left; }
  .video-card:nth-child(n+10) { display: none; }
  .rank { font-size: 7px; }
  .duration, .live { font-size: 5px; }
  .video-copy h2 { font-size: 8px; line-height: 1.15; -webkit-line-clamp: 3; }
  .channel { margin-top: 4px; font-size: 5px; }
  .video-meta { margin-top: 4px; }
  .video-meta strong { font-size: 8px; }
  .video-meta span { font-size: 5px; }
  footer { min-height: 20px; font-size: 6px; }
}

@media (prefers-reduced-motion: reduce) { .refresh-dot { animation: none; } }