:root {
  color-scheme: light;
  --bg: #f3f5fb;
  --card: #ffffff;
  --ink: #1f2a44;
  --muted: #5e6a84;
  --line: #d8deed;
  --accent: #5d43d3;
  --accent-2: #2e87d7;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Rubik", "Open Sans", sans-serif;
  background: var(--bg);
  color: var(--ink);
}
.topbar {
  background: linear-gradient(to right, var(--accent), var(--accent-2));
  color: #fff;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.topbar h1 { margin: 0 0 .25rem; font-size: 1.35rem; }
.topbar p { margin: 0; opacity: .9; }
.layout {
  padding: 1rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: 1300px;
  margin: 0 auto;
}
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 12px 35px rgba(23, 28, 42, .08);
  padding: 1rem;
}
h2, h3 { margin: 0 0 .75rem; }
table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  border-bottom: 1px solid var(--line);
  text-align: right;
  padding: .5rem;
  vertical-align: top;
}
th { background: #f7f9ff; }
pre {
  background: #11162a;
  color: #d9e3ff;
  border-radius: 8px;
  padding: .75rem;
  overflow-x: auto;
}
code { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace; }
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
}
.form-grid label {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  font-size: .93rem;
  color: var(--muted);
}
.form-grid .checkbox-row {
  flex-direction: row;
  align-items: center;
  gap: .5rem;
}
input, textarea, button {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: .55rem .65rem;
  font: inherit;
}
textarea { width: 100%; resize: vertical; }
button {
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  border: 0;
}
button.secondary {
  background: rgba(255, 255, 255, .2);
  border: 1px solid rgba(255, 255, 255, .4);
}
.secondary-dark {
  background: #41516f;
}
.muted { color: var(--muted); }
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin: .6rem 0;
}
.live-layout {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: .75rem;
  margin-top: .75rem;
}
.live-frame-wrap, .live-activity-wrap {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #f9fbff;
  padding: .6rem;
}
.live-frame {
  width: 100%;
  min-height: 220px;
  max-height: 540px;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
  border: 1px solid var(--line);
}
.activity-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 540px;
  overflow: auto;
}
.activity-list li {
  padding: .4rem .45rem;
  font-size: .85rem;
  border-bottom: 1px solid #e7ecf8;
  color: #33415f;
}
.activity-list li:last-child {
  border-bottom: 0;
}
.error {
  color: #a80000;
  background: #ffe9ea;
  border: 1px solid #ffc1c4;
  padding: .5rem;
  border-radius: 8px;
}
.auth-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.auth-card {
  width: min(440px, 100%);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 14px 40px rgba(30, 38, 61, .14);
  padding: 1.2rem;
}
@media (max-width: 860px) {
  .form-grid { grid-template-columns: 1fr; }
  .live-layout { grid-template-columns: 1fr; }
}