/* ─── Design tokens (mirrors extension/tokens.css — separate deployable, ─────
   copied rather than shared, so values must be kept in sync by hand) */
:root {
  --bg: #edf4ff;
  --surface: #ffffffc9;
  --surface-2: #eef3ff;
  --surface-solid: #ffffff;
  --border: #cdd8f3;
  --text: #111827;
  --text-muted: #64748b;

  --accent: #0ea5a1;
  --accent-dark: #0f766e;
  --on-accent: #ffffff;
  --success: #16a34a;
  --success-dark: #15803d;
  --warning: #d97706;
  --warning-dark: #92400e;
  --danger: #dc2626;
  --danger-dark: #991b1b;
  --info: #38bdf8;
  --info-dark: #0284c7;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-md: 0 10px 30px rgba(15, 23, 42, .12);

  --font-sans: 'Segoe UI Variable', -apple-system, BlinkMacSystemFont,
    'Segoe UI', Roboto, 'Aptos', sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a1020;
    --surface: #151c31cc;
    --surface-2: #1d2740;
    --surface-solid: #151c31;
    --border: #30415f;
    --text: #f9fafb;
    --text-muted: #9fb0c7;
    --shadow-md: 0 12px 30px rgba(0, 0, 0, .48);
  }
}

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

/* The hidden attribute's UA-stylesheet display:none is low-specificity —
   any class below that sets its own `display` (`.card`, `.main-nav`, etc.)
   would otherwise silently win and keep the element visible. */
[hidden] { display: none !important; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body {
  font-family: var(--font-sans);
  background:
    radial-gradient(1200px 500px at 0% 0%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 70%),
    radial-gradient(900px 450px at 100% 10%, color-mix(in srgb, var(--info) 18%, transparent), transparent 68%),
    var(--bg);
  color: var(--text);
  font-size: 15px;
  min-height: 100vh;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 32px;
  flex-wrap: wrap;
}

.page-header__brand h1 { font-size: 20px; font-weight: 700; }
.page-header__brand .subtitle { font-size: 13px; color: var(--text-muted); }

.main-nav {
  display: flex;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 4px;
}

.nav-tab {
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease;
}
.nav-tab:hover { background: var(--surface-2); color: var(--text); }
.nav-tab.nav-tab--active {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--on-accent);
}
.nav-tab--logout { color: var(--danger); }

#app {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 16px 64px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.card {
  background: var(--surface);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card h2 {
  font-size: 16px;
  font-weight: 600;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

.card h3 {
  font-size: 14px;
  font-weight: 600;
  margin-top: 8px;
}

.card--danger { border-color: color-mix(in srgb, var(--danger) 55%, transparent); }
.danger-heading { color: var(--danger-dark); }

.card--auth {
  max-width: 380px;
  margin: 10vh auto 0;
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}
.toggle-row input { width: 16px; height: 16px; }

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

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.field label { font-size: 13px; font-weight: 600; }

input, select {
  font: inherit;
  color: var(--text);
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

a {
  color: var(--accent-dark);
  text-decoration: none;
}
a:hover { text-decoration: underline; }
a:visited { color: var(--accent-dark); }

.field-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

button {
  font: inherit;
  cursor: pointer;
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: background 160ms ease, transform 160ms ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--on-accent);
}
.btn-primary:hover { transform: translateY(-1px); }

.btn-secondary {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover { background: var(--border); }

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover { background: var(--danger-dark); }

.btn-sm { padding: 5px 10px; font-size: 12px; }

#auth-status,
#account-password-status,
#account-delete-status {
  font-size: 13px;
  color: var(--text-muted);
}
.status--ok { color: var(--success); }
.status--err { color: var(--danger); }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}

.stat-tile {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
}
.stat-tile__label { font-size: 12px; color: var(--text-muted); }
.stat-tile__value { font-size: 18px; font-weight: 700; margin-top: 2px; }

.item-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.item-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 13px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.data-table th, .data-table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
.data-table th { color: var(--text-muted); font-weight: 600; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}
.badge--ok { background: color-mix(in srgb, var(--success) 20%, transparent); color: var(--success-dark); }
.badge--err { background: color-mix(in srgb, var(--danger) 20%, transparent); color: var(--danger-dark); }
.badge--accent { background: color-mix(in srgb, var(--accent) 20%, transparent); color: var(--accent-dark); }

.data-tree__profile { margin-bottom: 16px; }
.data-tree__profile-name { font-weight: 700; margin-bottom: 6px; }
.data-tree__dial {
  font-size: 13px;
  padding: 4px 0 4px 12px;
  border-left: 2px solid var(--border);
  color: var(--text-muted);
}