:root {
  color-scheme: light dark;
  --bg: #f5f6f8;
  --card-bg: #ffffff;
  --text: #1b1f24;
  --muted: #5c6570;
  --border: #d7dbe0;
  --accent: #2f6fed;
  --accent-contrast: #ffffff;
  --error-bg: #fdecec;
  --error-text: #a4262c;
  --ok: #1a7f37;
  --danger: #c53030;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171a;
    --card-bg: #1e2226;
    --text: #e7eaee;
    --muted: #9aa4af;
    --border: #33393f;
    --error-bg: #3a1f20;
    --error-text: #ff9a9a;
    --ok: #57d778;
    --danger: #ff8080;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
}

.page { max-width: 640px; margin: 0 auto; padding: 24px 16px 64px; }

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.brand { font-weight: 700; font-size: 17px; }

.account-bar { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--muted); }

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

.language-select {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  font-size: 12px;
  padding: 3px 5px;
  cursor: pointer;
}

.link-button {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 13px;
  cursor: pointer;
  padding: 0;
}
.link-button:hover { text-decoration: underline; }

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 16px;
}

h1 { margin: 0 0 4px; font-size: 16px; }
.hint { margin: 8px 0 16px; color: var(--muted); font-size: 13px; line-height: 1.5; }

form { display: flex; flex-direction: column; gap: 4px; }
label { font-size: 12px; font-weight: 600; margin-top: 10px; }

input[type="email"], input[type="password"] {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  font-size: 14px;
  width: 100%;
}

.primary-button {
  margin-top: 16px;
  background: var(--accent);
  color: var(--accent-contrast);
  border: none;
  border-radius: 6px;
  padding: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
}
.primary-button:disabled { opacity: 0.5; cursor: not-allowed; }

.secondary-button {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 12px;
  color: var(--text);
  cursor: pointer;
}

.danger-button {
  background: transparent;
  border: 1px solid var(--danger);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 12px;
  color: var(--danger);
  cursor: pointer;
}

.error {
  background: var(--error-bg);
  color: var(--error-text);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 13px;
  margin-top: 10px;
}

.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; margin: 0; }
.kv dt { color: var(--muted); font-size: 12px; }
.kv dd { margin: 0; font-weight: 600; word-break: break-all; }

.status-list, .devices-list { display: flex; flex-direction: column; gap: 10px; }

.status-row, .device-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
}

.status-row-main, .device-row-main { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.status-row-title, .device-row-title { font-weight: 600; font-size: 13px; }
.status-row-detail, .device-row-detail { color: var(--muted); font-size: 12px; }

.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; }
.dot-ok { background: var(--ok); }
.dot-empty { background: var(--muted); }

.this-device-badge {
  display: inline-block;
  margin-left: 6px;
  font-size: 11px;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 1px 5px;
}

.never-used-badge {
  display: inline-block;
  margin-left: 6px;
  font-size: 11px;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
}

.devices-header { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.devices-header h1 { margin: 0; }

.empty-hint { color: var(--muted); font-size: 13px; }

input[type="password"] { margin-top: 4px; }

.bookmarks-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.bookmarks-toolbar-actions { display: flex; gap: 12px; }

.tree {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  max-height: 50vh;
  overflow-y: auto;
  font-size: 13px;
}
ul.tree-root, .tree ul { list-style: none; margin: 0; padding-left: 20px; }
ul.tree-root { padding-left: 0; }
.tree li { margin: 3px 0; }
.tree-row { display: flex; align-items: center; gap: 6px; }
.tree-icon { font-size: 13px; }
.folder-label { font-weight: 600; }
.tree a { color: var(--text); text-decoration: none; }
.tree a:hover { text-decoration: underline; color: var(--accent); }