:root {
  --bg: #090d1a;
  --bg-accent: #0d1530;
  --surface: #10182b;
  --surface-muted: #0f1f3b;
  --surface-soft: #16213d;
  --text: #e5e7eb;
  --text-muted: #9aa7bd;
  --border: #243554;
  --primary: #4f8cff;
  --primary-hover: #3f79e6;
  --danger: #f05252;
  --danger-hover: #e04444;
  --success: #10b981;
  --shadow: 0 18px 40px rgba(2, 6, 23, 0.5);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(circle at 10% 10%, rgba(79, 140, 255, 0.18) 0%, transparent 35%),
    radial-gradient(circle at 90% 0%, rgba(16, 185, 129, 0.12) 0%, transparent 25%),
    linear-gradient(180deg, var(--bg-accent) 0%, var(--bg) 60%);
  color: var(--text);
}

.page {
  min-height: 100vh;
  padding: 28px;
}

.container {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.brand {
  font-size: 22px;
  font-weight: 700;
}

.actions {
  display: flex;
  gap: 10px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 20px;
  backdrop-filter: blur(4px);
}

.grid {
  display: grid;
  gap: 16px;
}

.grid-2-1 {
  grid-template-columns: 2fr 1fr;
}

.grid-1-1 {
  grid-template-columns: 1fr 1fr;
}

h1, h2, h3 {
  margin: 0 0 12px;
}

h1 { font-size: 28px; }
h2 { font-size: 20px; }
h3 { font-size: 16px; }

p.muted, .muted {
  color: var(--text-muted);
  margin: 0;
}

.row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

label {
  font-size: 13px;
  color: var(--text-muted);
}

input, select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--surface-soft);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus, select:focus {
  border-color: #6fa3ff;
  box-shadow: 0 0 0 3px rgba(79, 140, 255, 0.25);
}

button {
  border: none;
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, filter 0.15s ease;
}

button:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

button.primary {
  background: var(--primary);
  color: #fff;
}

button.primary:hover { background: var(--primary-hover); }

button.ghost {
  background: #1a2a4b;
  color: #b9d1ff;
}

button.danger {
  background: var(--danger);
  color: #fff;
}

button.danger:hover { background: var(--danger-hover); }

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.list li {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  margin-bottom: 8px;
  background: var(--surface-soft);
}

.message-box {
  height: 320px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  background: var(--surface-muted);
}

.message-box::-webkit-scrollbar,
.list::-webkit-scrollbar {
  width: 10px;
}

.message-box::-webkit-scrollbar-thumb,
.list::-webkit-scrollbar-thumb {
  background: #2a3f66;
  border-radius: 999px;
}

.message-box::-webkit-scrollbar-track,
.list::-webkit-scrollbar-track {
  background: transparent;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
}

.video-box {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  background: var(--surface-muted);
}

.video-box p {
  margin: 0 0 6px;
  color: var(--text-muted);
  font-size: 13px;
}

video {
  width: 100%;
  border-radius: 8px;
  background: #000;
}

.auth-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}

.auth-card {
  width: min(460px, 100%);
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  font-size: 12px;
  padding: 4px 10px;
  background: #11335f;
  color: #b9d1ff;
}

.error {
  color: var(--danger);
  font-size: 14px;
}

.success {
  color: var(--success);
  font-size: 14px;
}

@media (max-width: 950px) {
  .grid-2-1,
  .grid-1-1 {
    grid-template-columns: 1fr;
  }
}