:root {
  color-scheme: dark;
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1f232c;
  --border: #2a2f3a;
  --text: #e8eaed;
  --muted: #9aa1ac;
  --accent: #ff5c35;
  --accent-2: #35d67c;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

.topbar .brand { font-weight: 700; font-size: 1.1rem; }
.topbar .brand span { color: var(--accent); }

.topbar nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 18px;
  font-size: 0.9rem;
}
.topbar nav a:hover { color: var(--text); }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px;
}

.center-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

.card.narrow { max-width: 380px; width: 100%; }

h1 { font-size: 1.4rem; margin: 0 0 4px; }
h2 { font-size: 1.1rem; margin: 0 0 12px; }
p.subtitle { color: var(--muted); margin: 0 0 20px; font-size: 0.9rem; }

label { display: block; font-size: 0.85rem; color: var(--muted); margin: 14px 0 6px; }

input[type=text], input[type=password], select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 0.95rem;
}

button, .btn {
  display: inline-block;
  margin-top: 18px;
  padding: 10px 18px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.9rem;
  text-decoration: none;
}
button.secondary, .btn.secondary {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
}
button.danger { background: #c94444; }

.error {
  background: #3a1e1e;
  border: 1px solid #c94444;
  color: #ffb4b4;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-bottom: 10px;
}
.success {
  background: #16321f;
  border: 1px solid var(--accent-2);
  color: #b6f0cb;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.stat-row { display: flex; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.stat {
  flex: 1;
  min-width: 140px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}
.stat .value { font-size: 1.6rem; font-weight: 700; }
.stat .label { font-size: 0.8rem; color: var(--muted); }

table { width: 100%; border-collapse: collapse; margin-top: 8px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 0.88rem; }
th { color: var(--muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; }
tr:hover td { background: var(--panel-2); }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--muted);
}

.rank-1 td:first-child, .rank-2 td:first-child, .rank-3 td:first-child { color: var(--accent); font-weight: 700; }

.video-link { color: var(--text); text-decoration: none; }
.video-link:hover { color: var(--accent); }

.top-actions { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 10px; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }

form.inline { display: inline; }

.channel-form { display: grid; grid-template-columns: 1fr 1fr 1fr auto; gap: 10px; align-items: end; margin-bottom: 20px; }
@media (max-width: 720px) {
  .channel-form { grid-template-columns: 1fr; }
}