:root {
  color-scheme: dark;
  --bg: #0d1522;
  --panel: #152235;
  --panel2: #1b2a40;
  --line: #2b3d59;
  --text: #f3f7ff;
  --muted: #9fb0c8;
  --blue: #3491ff;
  --green: #38e88a;
  --red: #ff5678;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell {
  width: min(940px, 100%);
  margin: 0 auto;
  padding: 18px 14px 30px;
}

.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 14px;
}

h1, h2, p { margin-top: 0; }
h1 {
  margin-bottom: 0;
  font-size: clamp(30px, 8vw, 44px);
  line-height: 1;
}
h2 {
  margin-bottom: 4px;
  font-size: 24px;
}

.ghost {
  border: 1px solid var(--line);
  background: var(--panel2);
  color: var(--text);
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  font-size: 16px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.tile, .panel, .video {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
}

.tile {
  min-height: 92px;
  padding: 14px;
}
.tile span, .settingsGrid span {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}
.tile strong {
  font-size: 24px;
}

.panel {
  margin-top: 14px;
  padding: 16px;
}
.panelHead {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}
.panelHead p {
  color: var(--muted);
  margin-bottom: 0;
}

.settingsGrid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.formGrid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 14px;
}

label {
  display: block;
  background: #101a2a;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

label.wide {
  grid-column: 1 / -1;
}

label span {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}

input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0c1422;
  color: var(--text);
  padding: 0 12px;
  font: inherit;
}

.presetRow {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.small {
  min-height: 38px;
  font-size: 14px;
  padding: 0 12px;
}

.primary {
  width: 100%;
  min-height: 48px;
  margin-top: 12px;
  border: 0;
  border-radius: 8px;
  background: var(--blue);
  color: white;
  font: inherit;
  font-weight: 700;
}

.saveHint {
  margin: 10px 0 0;
  min-height: 22px;
  color: var(--muted);
}
.settingsGrid div {
  background: #101a2a;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

.videos {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}
.video {
  overflow: hidden;
}
.video img {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #0a101a;
}
.videoBody {
  padding: 14px;
}
.videoTitle {
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.25;
}
.meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 12px 0;
}
.meta div {
  background: #101a2a;
  border-radius: 8px;
  padding: 10px;
}
.meta span {
  color: var(--muted);
  display: block;
  font-size: 13px;
}
.meta b {
  font-size: 16px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(52, 145, 255, .14);
  color: #9ed0ff;
  border: 1px solid rgba(52, 145, 255, .25);
  font-size: 13px;
}
.videoActions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.error {
  padding: 12px;
  border: 1px solid rgba(255, 86, 120, .45);
  background: rgba(255, 86, 120, .12);
  color: #ffd7df;
  border-radius: 8px;
  margin-bottom: 12px;
}
.hidden { display: none; }

@media (max-width: 720px) {
  .grid, .settingsGrid, .formGrid {
    grid-template-columns: repeat(2, 1fr);
  }
  .panelHead {
    flex-direction: column;
  }
}

@media (max-width: 420px) {
  .grid, .settingsGrid, .formGrid, .meta {
    grid-template-columns: 1fr;
  }
}