:root {
  --bg-primary: #f5f5f5;
  --bg-secondary: #fdfdfd;
  --text-primary: #000;
  --text-secondary: #666;
  --border-color: rgba(0, 0, 0, 0.1);
  --accent: #8159b8;
  --success: #28a745;
  --error: #dc3545;
  --spinner-track: #e0e0e0;
  --badge-signal-bg: rgba(129, 89, 184, 0.2);
  --badge-up-bg: rgba(40, 167, 69, 0.2);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --border-color: rgba(255, 255, 255, 0.1);
    --success: #28a745;
    --error: #ef4444;
    --spinner-track: #4a4a4a;
    --badge-signal-bg: #8159b8;
    --badge-up-bg: #28a745;
  }
}

[data-theme="light"] {
  --bg-primary: #f5f5f5;
  --bg-secondary: #fdfdfd;
  --text-primary: #000;
  --text-secondary: #666;
  --border-color: rgba(0, 0, 0, 0.1);
  --success: #28a745;
  --error: #dc3545;
  --spinner-track: #e0e0e0;
  --badge-signal-bg: rgba(129, 89, 184, 0.2);
  --badge-up-bg: rgba(40, 167, 69, 0.2);
}

[data-theme="dark"] {
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d2d2d;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0a0;
  --border-color: rgba(255, 255, 255, 0.1);
  --success: #28a745;
  --error: #ef4444;
  --spinner-track: #4a4a4a;
  --badge-signal-bg: #8159b8;
  --badge-up-bg: #28a745;
}

/* CSS Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

body {
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

/* Styles */
body {
  font-family: system-ui;
  max-width: 50rem;
  margin: 1.25rem auto;
  padding: 0 1.25rem 1.25rem;
  background: var(--bg-primary);
  color: var(--text-primary);
}

.card {
  background: var(--bg-secondary);
  border-radius: 0.5rem;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 0.125rem 0.25rem var(--border-color);
}

h2 {
  margin-bottom: 1.25rem;
}

.status {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.status-item {
  padding: 0.625rem 1rem;
  border-radius: 0.25rem;
  font-weight: 500;
  position: relative;
}

.status-item:has(.tooltip) {
  cursor: help;
}

.status-item .tooltip {
  visibility: hidden;
  opacity: 0;
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 0.5rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 0.375rem 0.625rem;
  border-radius: 0.25rem;
  border: 1px solid var(--border-color);
  font-size: 0.875rem;
  font-weight: 400;
  white-space: nowrap;
  transition: opacity 0.2s;
  pointer-events: none;
  z-index: 10;
  box-shadow: 0 0.25rem 0.5rem rgba(0, 0, 0, 0.2);
}

.status-item .tooltip::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 0.3125rem solid transparent;
  border-top-color: var(--bg-secondary);
}

.status-item:hover .tooltip {
  visibility: visible;
  opacity: 1;
}

.theme-toggle {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  padding: 0;
  line-height: 1;
  opacity: 0.4;
  transition: opacity 0.2s;
  z-index: 100;
}

.theme-toggle:hover {
  opacity: 0.8;
}

.status-ok {
  background: var(--success);
  color: white;
}

.status-error {
  background: var(--error);
  color: white;
}

.endpoint-list {
  list-style: none;
  padding: 0;
  max-height: 18.75rem;
  overflow-y: auto;
}

.endpoint-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem;
  background: var(--bg-primary);
  border-radius: 0.25rem;
  margin-bottom: 0.5rem;
  gap: 1rem;
}

.endpoint-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.endpoint-name {
  font-size: 1.1em;
}

.endpoint-channel {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9em;
}

.channel-badge {
  padding: 0.15rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.85em;
  font-weight: 500;
}

.channel-signal {
  background: var(--badge-signal-bg);
  color: white;
}

.channel-unifiedpush {
  background: var(--badge-up-bg);
  color: white;
}

.endpoint-detail {
  color: var(--text-secondary);
  font-size: 0.85em;
}

.endpoint-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.channel-select {
  padding: 0.375rem 0.5rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
  cursor: pointer;
  font-size: 0.9em;
}

.btn-delete {
  padding: 0.375rem 0.75rem;
  background: var(--error);
  color: white;
  border: none;
  border-radius: 0.25rem;
  cursor: pointer;
  transition: filter 0.2s;
  white-space: nowrap;
}

.btn-delete:hover {
  filter: brightness(0.9);
}

.btn-cancel {
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  background: var(--text-secondary);
  color: white;
  border: none;
  border-radius: 0.25rem;
  cursor: pointer;
  transition: filter 0.2s;
}

.btn-cancel:hover {
  filter: brightness(0.9);
}

.unlink-details {
  margin-top: 1rem;
}

.unlink-summary {
  cursor: pointer;
  font-weight: bold;
}

.unlink-instructions {
  margin-top: 1rem;
}

.unlink-instructions ol {
  margin-left: 1.25rem;
}

.qr-instructions {
  font-size: 1.05em;
}

.qr-container {
  margin-top: 1rem;
  width: 18.75rem;
  height: 18.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.qr-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.link-button {
  display: inline-block;
  padding: 0.625rem 1.25rem;
  background: var(--accent);
  color: white;
  text-decoration: none;
  border-radius: 0.25rem;
  margin-top: 0.625rem;
  border: none;
  cursor: pointer;
  transition: filter 0.2s;
}

.link-button:hover {
  filter: brightness(0.9);
}

.loading {
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.spinner {
  width: 1.25rem;
  height: 1.25rem;
  border: 0.125rem solid var(--spinner-track);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.loading-subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}