:root {
  color-scheme: light dark;
  --text: #1d1d1f;
  --text-secondary: rgba(0,0,0,0.55);
  --border: rgba(0,0,0,0.1);
  --card-bg: rgba(0,0,0,0.03);
  --input-bg: rgba(0,0,0,0.04);
  --input-border: rgba(0,0,0,0.12);
  --toolbar-border: rgba(0,0,0,0.08);
  --overlay-bg: rgba(255,255,255,0.8);
  --btn-sm-bg: rgba(0,0,0,0.06);
  --btn-sm-border: rgba(0,0,0,0.15);
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e6e6e6;
    --text-secondary: rgba(255,255,255,0.55);
    --border: rgba(255,255,255,0.1);
    --card-bg: rgba(255,255,255,0.04);
    --input-bg: rgba(255,255,255,0.06);
    --input-border: rgba(255,255,255,0.15);
    --toolbar-border: rgba(255,255,255,0.08);
    --overlay-bg: rgba(0,0,0,0.75);
    --btn-sm-bg: rgba(255,255,255,0.08);
    --btn-sm-border: rgba(255,255,255,0.2);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  color: var(--text);
  min-height: 100vh;
}

/* Pages */
.page {
  max-width: 600px;
  margin: 0 auto;
  padding: 32px 20px;
}

.page-title {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 6px;
}

.page-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0 0 28px;
}

/* Cards */
.cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card {
  padding: 20px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card-bg);
}

.card h2 {
  font-size: 16px;
  margin: 0 0 6px;
}

.card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0 0 14px;
  line-height: 1.5;
}

.input-row {
  display: flex;
  gap: 8px;
}

.input-row input {
  flex: 1;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: inherit;
  font-size: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  outline: none;
}

.input-row input:focus {
  border-color: rgba(10,132,255,0.6);
}

/* Buttons */
button {
  font-family: inherit;
  cursor: pointer;
}

.btn-primary {
  padding: 10px 20px;
  border-radius: 8px;
  border: none;
  background: #0a84ff;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}

.btn-primary:hover {
  background: #0070e0;
}

#btn-connect {
  padding: 8px 16px;
  border-radius: 8px;
  border: none;
  background: #30d158;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}

.btn-back {
  padding: 6px 0;
  border: none;
  background: none;
  color: #0a84ff;
  font-size: 14px;
  margin-bottom: 16px;
}

.btn-sm {
  padding: 4px 12px;
  border-radius: 6px;
  border: 1px solid var(--btn-sm-border);
  background: var(--btn-sm-bg);
  color: inherit;
  font-size: 13px;
}

.btn-danger {
  padding: 6px 12px;
  border-radius: 6px;
  border: none;
  background: rgba(255,59,48,0.85);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
}

/* Status box */
.status-box {
  text-align: center;
  padding: 32px 0;
}

.status-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.status-icon.large {
  font-size: 56px;
}

.status-label {
  font-size: 16px;
  color: var(--text-secondary);
}

/* ID section */
.id-section {
  margin-top: 20px;
}

.id-section label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 6px;
}

.id-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 14px;
  word-break: break-all;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  flex: 1;
}

.qr-wrap {
  margin-top: 20px;
  text-align: center;
}

.qr-wrap canvas,
.qr-wrap img {
  display: inline-block;
  border-radius: 8px;
}

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--toolbar-border);
}

.conn-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
}

.conn-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.conn-indicator.connected .conn-dot {
  background: #30d158;
  box-shadow: 0 0 6px #30d158;
}

.conn-indicator.connected #conn-label {
  color: #30d158;
}

.conn-indicator.disconnected .conn-dot {
  background: #ff453a;
  box-shadow: 0 0 6px #ff453a;
}

.conn-indicator.disconnected #conn-label {
  color: #ff453a;
}

#btn-save {
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid var(--btn-sm-border);
  background: var(--btn-sm-bg);
  color: inherit;
  font-size: 13px;
}

#btn-save:disabled {
  opacity: 0.35;
  cursor: default;
}

/* Sync status */
.sync-status {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 4px;
}

.sync-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: inline-block;
}

.sync-dot.synced {
  background: #30d158;
}

.sync-status.synced #sync-label {
  color: #30d158;
}

.sync-dot.dirty {
  background: #ff9f0a;
}

.sync-status.dirty #sync-label {
  color: #ff9f0a;
}

.sync-dot.error {
  background: #ff453a;
}

.sync-status.error #sync-label {
  color: #ff453a;
}

/* Editor */
.editor-root {
  height: calc(100vh - 49px);
  width: 100%;
}

#editor-panel {
  max-width: none;
  padding: 0;
}

/* Overlay */
.overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay-bg);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.overlay-content {
  text-align: center;
  padding: 40px;
}

.overlay-content h2 {
  font-size: 22px;
  margin: 12px 0 6px;
}

.overlay-content p {
  color: var(--text-secondary);
  margin: 0 0 24px;
}

/* Language toggle */
.lang-toggle {
  position: fixed;
  bottom: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  z-index: 900;
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lang-toggle:hover {
  border-color: #0a84ff;
  color: #0a84ff;
}

.hidden {
  display: none !important;
}