:root {
  --bg-primary: #2E473B;
  --bg-secondary: #1E3229;
  --bg-card: #3A5A4A;
  --bg-card-hover: #456B57;
  --text-primary: #F5F5DC;
  --text-secondary: #C4C4A8;
  --text-muted: #8A8A72;
  --status-allowed: #4CAF50;
  --status-blocked: #DC3545;
  --status-nuke: #FF1744;
  --accent: #6B8F71;
  --border: #4A6B55;
  --shadow: rgba(0, 0, 0, 0.3);
}

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

html, body {
  height: 100%;
  font-family: 'Courier New', 'Consolas', monospace;
  background: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

body {
  background-image:
    radial-gradient(circle at 20% 50%, rgba(107, 143, 113, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(107, 143, 113, 0.05) 0%, transparent 50%),
    linear-gradient(rgba(107, 143, 113, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(107, 143, 113, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
}

#root {
  height: 100%;
}

.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  max-width: 600px;
  margin: 0 auto;
}

.app-content {
  flex: 1;
  padding: 16px;
  padding-bottom: 80px;
  overflow-y: auto;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
  transition: background 0.2s;
}

.card:hover {
  background: var(--bg-card-hover);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-allowed {
  background: var(--status-allowed);
  color: #fff;
}

.btn-blocked {
  background: var(--status-blocked);
  color: #fff;
}

.btn-nuke {
  background: var(--status-nuke);
  color: #fff;
  box-shadow: 0 0 15px rgba(255, 23, 68, 0.4);
}

.btn-nuke:hover {
  box-shadow: 0 0 25px rgba(255, 23, 68, 0.6);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.status-dot.online {
  background: var(--status-allowed);
  box-shadow: 0 0 6px var(--status-allowed);
}

.status-dot.offline {
  background: var(--text-muted);
}

.toggle-switch {
  position: relative;
  width: 52px;
  height: 28px;
  background: var(--status-blocked);
  border-radius: 14px;
  cursor: pointer;
  transition: background 0.3s;
  border: none;
  padding: 0;
}

.toggle-switch.active {
  background: var(--status-allowed);
}

.toggle-switch .toggle-knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.3s;
}

.toggle-switch.active .toggle-knob {
  transform: translateX(24px);
}

.loading-spinner {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px;
  color: var(--text-muted);
}

.error-message {
  background: rgba(220, 53, 69, 0.1);
  border: 1px solid var(--status-blocked);
  border-radius: 8px;
  padding: 12px;
  color: var(--status-blocked);
  margin-bottom: 12px;
}

@media (min-width: 768px) {
  .app-content {
    padding: 24px;
    padding-bottom: 80px;
  }
}