:root {
  --admin-bg: #090d16;
  --admin-card: #131a29;
  --admin-card-hover: #1c263b;
  --admin-border: #243049;
  --admin-text: #f1f5f9;
  --admin-text-muted: #8e9cb2;
  --admin-accent: #3b82f6;
  --admin-accent-hover: #2563eb;
  --admin-danger: #ef4444;
  --admin-danger-hover: #dc2626;
  --admin-warning: #f59e0b;
  --admin-success: #10b981;
  --admin-font: -apple-system, BlinkMacSystemFont, "Pretendard", "Apple SD Gothic Neo", "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--admin-bg);
  color: var(--admin-text);
  font-family: var(--admin-font);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ==========================================================================
   Login Overlay
   ========================================================================== */
.admin-login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(9, 13, 22, 0.95);
  backdrop-filter: blur(8px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

.login-card {
  background: var(--admin-card);
  border: 1px solid var(--admin-border);
  padding: 32px 36px;
  border-radius: 16px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  text-align: center;
}

.login-icon {
  font-size: 2.8rem;
  margin-bottom: 8px;
}

.login-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.login-subtitle {
  font-size: 0.85rem;
  color: var(--admin-text-muted);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 16px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--admin-text-muted);
}

.form-input {
  width: 100%;
  padding: 12px 14px;
  background: #090d16;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  color: #ffffff;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}

.form-input:focus {
  border-color: var(--admin-accent);
}

.btn-login {
  width: 100%;
  padding: 12px;
  background: var(--admin-accent);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-login:hover {
  background: var(--admin-accent-hover);
}

/* ==========================================================================
   Admin Header
   ========================================================================== */
.admin-navbar {
  background: var(--admin-card);
  border-bottom: 1px solid var(--admin-border);
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.nav-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.badge-admin {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.4);
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 700;
}

.nav-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.btn-admin {
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.btn-admin.primary {
  background: var(--admin-accent);
  color: #fff;
}
.btn-admin.primary:hover { background: var(--admin-accent-hover); }

.btn-admin.danger {
  background: var(--admin-danger);
  color: #fff;
}
.btn-admin.danger:hover { background: var(--admin-danger-hover); }

.btn-admin.outline {
  background: transparent;
  border-color: var(--admin-border);
  color: var(--admin-text);
}
.btn-admin.outline:hover { background: var(--admin-card-hover); }

/* ==========================================================================
   Dashboard Metrics Cards
   ========================================================================== */
.admin-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  padding: 20px 24px;
}

.metric-card {
  background: var(--admin-card);
  border: 1px solid var(--admin-border);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.metric-info h4 {
  font-size: 0.8rem;
  color: var(--admin-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.metric-info .value {
  font-size: 1.7rem;
  font-weight: 800;
}

.metric-icon {
  font-size: 2rem;
  opacity: 0.8;
}

/* ==========================================================================
   Main Grid Layout
   ========================================================================== */
.admin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 0 24px 24px 24px;
  flex: 1;
}

.panel-card {
  background: var(--admin-card);
  border: 1px solid var(--admin-border);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  height: 620px;
  overflow: hidden;
}

.panel-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--admin-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.02);
}

.panel-title {
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Rooms List */
.room-item {
  background: #0d131f;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.2s;
  cursor: pointer;
}

.room-item:hover, .room-item.active {
  border-color: var(--admin-accent);
  background: #141e30;
}

.room-tag {
  display: inline-block;
  padding: 2px 6px;
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  margin-right: 6px;
}

.room-id-text {
  font-family: monospace;
  font-size: 0.85rem;
  font-weight: 600;
}

.room-meta-sub {
  font-size: 0.75rem;
  color: var(--admin-text-muted);
  margin-top: 4px;
}

/* Spy View Modal / Drawer */
.spy-container {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.spy-participants-bar {
  display: flex;
  justify-content: space-around;
  background: #090d16;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 8px;
  font-size: 0.8rem;
}

.participant-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

.participant-badge.userA {
  color: #60a5fa;
}

.participant-badge.userB {
  color: #34d399;
}

.spy-chat-body {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 10px 4px;
}

.spy-bubble {
  max-width: 82%;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 0.9rem;
  line-height: 1.45;
  word-break: break-word;
  position: relative;
}

.spy-bubble.userA {
  background: #172554;
  color: #eff6ff;
  border: 1px solid #1e40af;
  align-self: flex-start;
  border-bottom-left-radius: 2px;
}

.spy-bubble.userB {
  background: #064e3b;
  color: #ecfdf5;
  border: 1px solid #047857;
  align-self: flex-end;
  border-bottom-right-radius: 2px;
}

.spy-bubble.system {
  background: #1e293b;
  color: #cbd5e1;
  border: 1px dashed var(--admin-border);
  align-self: center;
  font-size: 0.8rem;
  padding: 6px 14px;
  border-radius: 20px;
}

.spy-sender-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  margin-bottom: 4px;
}

.spy-bubble.userA .spy-sender-badge {
  background: rgba(59, 130, 246, 0.25);
  color: #93c5fd;
}

.spy-bubble.userB .spy-sender-badge {
  background: rgba(16, 185, 129, 0.25);
  color: #a7f3d0;
}

.spy-time {
  font-size: 0.68rem;
  opacity: 0.65;
  margin-top: 4px;
  text-align: right;
}

/* Event Feed Stream */
.feed-item {
  background: #0b101b;
  border-left: 3px solid var(--admin-accent);
  padding: 10px 12px;
  border-radius: 4px;
  font-size: 0.82rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.feed-item.match { border-left-color: var(--admin-success); }
.feed-item.leave { border-left-color: var(--admin-warning); }
.feed-item.action { border-left-color: var(--admin-danger); }
.feed-item.admin_notice { border-left-color: #ec4899; }

.feed-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--admin-text-muted);
}

.feed-content {
  color: var(--admin-text);
  font-weight: 500;
  word-break: break-word;
}

/* Modal Stacking & Backdrop */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10000;
  backdrop-filter: blur(4px);
}

.modal-backdrop.nested-modal {
  z-index: 10500;
  background: rgba(0, 0, 0, 0.85);
}

.modal-backdrop.top-modal {
  z-index: 11000;
  background: rgba(0, 0, 0, 0.85);
}

.modal-content {
  background: var(--admin-card);
  border: 1px solid var(--admin-border);
  border-radius: 12px;
  width: 90%;
  max-width: 480px;
  padding: 24px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
}

@media (max-width: 900px) {
  .admin-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Telemetry & Advanced Inspector Styles
   ========================================================================== */
.telemetry-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  background: #090d16;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 10px;
  font-size: 0.78rem;
}

.telemetry-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.telemetry-card.userA {
  border-left: 3px solid #3b82f6;
}

.telemetry-card.userB {
  border-left: 3px solid #10b981;
}

.telemetry-row {
  display: flex;
  justify-content: space-between;
  gap: 6px;
  color: var(--admin-text-muted);
}

.telemetry-row b {
  color: var(--admin-text);
  font-weight: 600;
  text-align: right;
  word-break: break-all;
}

.visitor-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  text-align: left;
}

.visitor-table th {
  background: #090d16;
  color: var(--admin-text-muted);
  padding: 10px 12px;
  border-bottom: 1px solid var(--admin-border);
  font-weight: 600;
}

.visitor-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--admin-text);
}

.visitor-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.status-pill {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
}

.status-pill.online {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
}

.status-pill.offline {
  background: rgba(148, 163, 184, 0.2);
  color: #94a3b8;
}