* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background: #0f0f1a;
  color: #e8e8f0;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem;
  background: #1a1a2e;
  border-bottom: 1px solid #2d2d44;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  min-width: 0;
}

.install-btn {
  display: none;
  padding: 0.45rem 0.75rem;
  font-size: 0.85rem;
  flex-shrink: 0;
}

h1 {
  margin: 0;
  font-size: 1.25rem;
}

section {
  padding: 1rem;
  max-width: 720px;
  margin: 0 auto;
}

form {
  display: grid;
  gap: 0.75rem;
}

label {
  display: grid;
  gap: 0.25rem;
}

input {
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  border: 1px solid #3a3a55;
  background: #161625;
  color: inherit;
}

button {
  padding: 0.65rem 1rem;
  border: none;
  border-radius: 8px;
  background: #4f46e5;
  color: white;
  font-weight: 600;
  cursor: pointer;
}

button.active,
.tabs button.active {
  background: #6366f1;
}

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  flex-wrap: nowrap;
  padding-bottom: 0.15rem;
}

.tabs::-webkit-scrollbar {
  display: none;
}

.tabs button {
  background: #2d2d44;
  flex-shrink: 0;
  white-space: nowrap;
}

.alert-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.alert-item {
  padding: 0.85rem 1rem;
  border-radius: 10px;
  background: #1a1a2e;
  border: 1px solid #2d2d44;
  cursor: pointer;
}

.alert-item.firing {
  border-left: 4px solid #ef4444;
}

.alert-item.resolved {
  border-left: 4px solid #22c55e;
}

.alert-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.alert-item p {
  margin: 0;
  color: #a1a1b5;
  font-size: 0.9rem;
}

.hidden {
  display: none !important;
}

.error {
  color: #f87171;
}

.mono {
  white-space: pre-wrap;
  word-break: break-word;
  background: #161625;
  padding: 0.75rem;
  border-radius: 8px;
  font-size: 0.85rem;
}

#user-bar {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  min-width: 0;
}

@media (max-width: 768px) {
  header {
    padding: 0.75rem 1rem;
  }

  h1 {
    font-size: 1.1rem;
  }

  .install-btn:not(.hidden) {
    display: inline-block;
  }

  #user-bar #username {
    display: none;
  }

  #logout-btn {
    padding: 0.45rem 0.75rem;
    font-size: 0.85rem;
  }
}

#detail-view {
  margin-top: 1rem;
}

#detail-back {
  margin-bottom: 0.75rem;
  background: #2d2d44;
}

button.danger {
  background: #dc2626;
}

button.small {
  padding: 0.4rem 0.75rem;
  font-size: 0.85rem;
}

.muted {
  color: #a1a1b5;
}

.empty-state {
  padding: 1.5rem 0;
  color: #a1a1b5;
}

.admin-section {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #2d2d44;
}

.admin-section h2,
.admin-section h3 {
  margin-top: 0;
}

.member-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: default;
}

.member-item .member-info h3 {
  margin: 0 0 0.25rem;
}

.channel-item {
  cursor: pointer;
}

#channels-message,
#channel-message,
#users-message {
  margin-top: 0.5rem;
}

#channels-message.error,
#channel-message.error,
#users-message.error {
  color: #f87171;
}

#channels-message.success,
#channel-message.success,
#users-message.success {
  color: #86efac;
}

.user-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: default;
}

.user-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.key-once-panel {
  margin-top: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  background: #161625;
  border: 1px solid #4f46e5;
}

.warning {
  color: #fbbf24;
  margin: 0 0 0.75rem;
}

.api-key-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.api-key-row code {
  flex: 1;
  min-width: 12rem;
}