:root {
  --bg: #0B1220;
  --surface: #141C2E;
  --border: #243352;
  --text: #E7EEF7;
  --muted: #8FA6C2;
  --accent: #3B82C4;
  --accent-soft: #BBD5EE;
  --danger: #F08A85;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Inter", "Helvetica Neue", Arial, sans-serif;
}

.topbar {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--border);
}
.word { font-weight: 800; letter-spacing: 0.04em; font-family: "JetBrains Mono", monospace; }
.sub { color: var(--muted); font-size: 13px; letter-spacing: 0.04em; text-transform: uppercase; }

main { max-width: 900px; margin: 0 auto; padding: 16px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 14px;
}

h1 { font-size: 20px; margin: 0 0 8px; }
h2 { font-size: 15px; margin: 0 0 10px; color: var(--accent-soft); font-family: "JetBrains Mono", monospace; letter-spacing: 0.02em; }

.hint { color: var(--muted); font-size: 13px; }
.error { color: var(--danger); font-size: 13px; }

input[type=text], select {
  width: 100%;
  padding: 10px;
  margin-bottom: 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

button {
  border: none;
  border-radius: 8px;
  padding: 10px 14px;
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
}
.btn-primary { background: var(--accent); color: white; width: 100%; }
.btn-secondary { background: var(--border); color: var(--text); width: 100%; }
.btn-link { background: none; color: var(--muted); text-decoration: underline; padding: 0; }
.btn-danger { background: #3A2733; color: var(--danger); }

.user-row { display: flex; justify-content: space-between; align-items: center; padding: 4px 4px 12px; font-size: 13px; color: var(--muted); }

.screen-card { display: flex; flex-direction: column; gap: 4px; }
.screen-card .row { display: flex; justify-content: space-between; align-items: baseline; }
.screen-card .name { font-weight: 700; font-size: 16px; }
.screen-card .meta { font-size: 11px; color: var(--muted); font-family: "JetBrains Mono", monospace; }
.btn-row { display: flex; gap: 8px; margin-top: 6px; }
.btn-row button { flex: 1; }

.card .row { display: flex; justify-content: space-between; align-items: baseline; }

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
}
.preview-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg);
}
.preview-card .preview-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 8px 10px;
  gap: 6px;
}
.preview-card .preview-head .name { font-weight: 700; font-size: 13px; }
.preview-card .preview-head .mode {
  font-size: 10px;
  font-family: "JetBrains Mono", monospace;
  color: var(--muted);
  text-transform: uppercase;
}
.preview-card iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: none;
  display: block;
  background: #0B1220;
  overflow: hidden;
}
.preview-card .preview-unavailable {
  aspect-ratio: 16 / 9;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
}
.preview-card .preview-unavailable a {
  color: var(--accent-soft);
  font-size: 12px;
  word-break: break-all;
}
.preview-card .preview-note {
  padding: 6px 10px 10px;
  font-size: 11px;
  color: var(--muted);
}
.preview-empty { color: var(--muted); font-size: 13px; }