:root {
  --bg: #f4f7fb;
  --panel: #ffffff;
  --panel-alt: #eef4ff;
  --text: #142033;
  --muted: #66758c;
  --primary: #1459c4;
  --primary-soft: #dce9ff;
  --danger: #c93d4f;
  --success: #16795a;
  --warning: #b17a18;
  --border: #d8e0ee;
  --shadow: 0 20px 50px rgba(20, 32, 51, 0.08);
  --radius: 20px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(20, 89, 196, 0.09), transparent 30%),
    linear-gradient(180deg, #f7faff 0%, var(--bg) 100%);
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
input, select, button {
  font: inherit;
}
input, select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.9rem 1rem;
  background: #fff;
}
button { cursor: pointer; border: 0; }

.app-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}
.sidebar {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.5rem;
  background: linear-gradient(180deg, #0f1c32 0%, #182948 100%);
  color: #eef4ff;
}
.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}
.brand-badge {
  width: 52px;
  height: 52px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #2e86ff, #7ec8ff);
  color: white;
  font-weight: 700;
}
.brand small,
.sidebar-user small,
.muted,
.mono {
  color: #8090aa;
}
.nav {
  display: grid;
  gap: 0.5rem;
}
.nav a {
  padding: 0.95rem 1rem;
  border-radius: 14px;
  color: #dce8ff;
}
.nav a.active,
.nav a:hover {
  background: rgba(255,255,255,0.08);
}
.sidebar-user {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1rem;
}
.main {
  padding: 2rem;
}
.page-top {
  margin-bottom: 1.5rem;
}
.eyebrow {
  margin: 0 0 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 700;
}
.card,
.hero-card,
.stat-card,
.player-card,
.login-card {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(216, 224, 238, 0.8);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card,
.player-card {
  padding: 1.4rem;
}
.hero-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.6rem;
  margin-bottom: 1.5rem;
}
.hero-metrics {
  display: flex;
  gap: 1rem;
}
.hero-metrics div {
  min-width: 110px;
  padding: 1rem;
  border-radius: 16px;
  background: var(--panel-alt);
}
.hero-metrics strong,
.stat-card strong {
  display: block;
  font-size: 2rem;
}
.stats-grid,
.content-grid,
.players-grid {
  display: grid;
  gap: 1rem;
}
.stats-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 1rem;
}
.content-grid {
  grid-template-columns: 1.35fr 1fr;
}
.stat-card {
  padding: 1.4rem;
}
.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.section-head h2,
.section-head h3,
.page-top h1,
.login-card h1,
.hero-card h2 {
  margin: 0;
}
.section-head p,
.hero-card p,
.login-card p {
  margin: 0.3rem 0 0;
  color: var(--muted);
}
.toolbar,
.filters-grid,
.search-grid,
.form-grid {
  display: grid;
  gap: 1rem;
}
.toolbar {
  grid-template-columns: 1.4fr auto;
  margin-bottom: 1rem;
}
.filters-grid,
.search-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.form-card {
  max-width: 960px;
}
.form-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.form-grid label,
.checkbox {
  display: grid;
  gap: 0.45rem;
}
.checkbox {
  grid-column: 1 / -1;
  grid-template-columns: auto 1fr;
  align-items: center;
}
.checkbox input {
  width: auto;
}
.form-actions {
  grid-column: 1 / -1;
  display: flex;
  gap: 0.75rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.2rem;
  border-radius: 14px;
  font-weight: 600;
}
.btn-sm {
  padding: 0.55rem 0.85rem;
  font-size: 0.9rem;
}
.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #2b7bff);
}
.btn-outline {
  color: var(--primary);
  background: #fff;
  border: 1px solid var(--border);
}
.btn-danger {
  color: #fff;
  background: linear-gradient(135deg, var(--danger), #ef6075);
}
.alert {
  margin-bottom: 1rem;
  padding: 1rem 1.2rem;
  border-radius: 16px;
}
.alert-success { background: #e8fff5; color: var(--success); }
.alert-error { background: #fff0f2; color: var(--danger); }

.table-wrap {
  overflow: auto;
}
table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  padding: 0.9rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th {
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
}
.status-online { background: #e7fbf2; color: var(--success); }
.status-offline { background: #fff1f3; color: var(--danger); }
.status-unknown { background: #fff8e9; color: var(--warning); }
.activity-list {
  display: grid;
  gap: 0.75rem;
}
.activity-item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 16px;
}
.channel-cell {
  display: flex;
  gap: 0.8rem;
  align-items: center;
}
.channel-cell img {
  width: 42px;
  height: 42px;
  object-fit: cover;
  border-radius: 10px;
  background: var(--panel-alt);
}
.search-result-group + .search-result-group {
  margin-top: 1.25rem;
}
.players-grid {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.player-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.8rem;
}
.player-head p,
.player-meta p {
  margin: 0.3rem 0 0;
  color: var(--muted);
}
.player-wrap video {
  width: 100%;
  min-height: 220px;
  background: #091120;
  border-radius: 18px;
}
.player-meta {
  margin-top: 0.8rem;
}
.mono {
  font-family: Consolas, monospace;
  word-break: break-all;
}
.pagination {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}
.pagination a {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
}
.pagination a.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}
.login-card {
  width: min(980px, 100%);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
}
.login-card__intro {
  padding: 1.5rem;
  border-radius: 18px;
  background: linear-gradient(135deg, #edf4ff, #ffffff);
}
.form-hint {
  color: var(--muted);
}
.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

@media (max-width: 1080px) {
  .app-shell,
  .content-grid,
  .login-card,
  .stats-grid,
  .form-grid,
  .filters-grid,
  .search-grid {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: sticky;
    top: 0;
  }
}

@media (max-width: 780px) {
  .app-shell {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: static;
  }
  .main {
    padding: 1rem;
  }
  .hero-card,
  .section-head,
  .activity-item,
  .sidebar-user {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-metrics,
  .settings-grid {
    grid-template-columns: 1fr;
    display: grid;
  }
}