:root {
  color-scheme: dark;
  --bg: #14141f;
  --panel: #1e1e2e;
  --border: #33334a;
  --text: #e8e8f0;
  --muted: #8a8aa0;
  --accent: #7c6cf0;
  --danger: #e05a5a;
}

* { box-sizing: border-box; }

/* The [hidden] attribute must win over rules like `.login-screen { display:
   flex }` below — author CSS otherwise overrides the UA `[hidden]` rule at
   equal specificity, leaving "hidden" screens visible and stacked. */
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  max-width: 360px;
}

.login-title { margin: 0 0 0.5rem; }
.login-title span { color: var(--accent); }
.login-sub { color: var(--muted); margin-bottom: 1.5rem; }

.btn {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.95rem;
}
.btn:hover { border-color: var(--accent); }

.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

.oauth-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 8px;
  padding: 13px 18px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: filter 0.15s ease, box-shadow 0.15s ease;
}
.oauth-icon { display: inline-flex; align-items: center; justify-content: center; }
.oauth-btn-google {
  background: #ffffff;
  color: #3c4043;
  border-color: #dadce0;
}
.oauth-btn-google:hover { filter: brightness(0.97); box-shadow: 0 2px 8px rgba(0,0,0,0.3); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-small { padding: 0.3rem 0.7rem; font-size: 0.85rem; }
.btn-danger { border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }

.error-text { color: var(--danger); }
.muted { color: var(--muted); font-size: 0.8rem; }

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.admin-header h1 { margin: 0; font-size: 1.2rem; }
.admin-header span { color: var(--accent); }

.admin-tabs {
  display: flex;
  gap: 0.5rem;
  padding: 1rem 1.5rem 0;
}
.tab-btn {
  background: none;
  border: none;
  color: var(--muted);
  padding: 0.5rem 1rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  font-size: 1rem;
}
.tab-btn.active { color: var(--text); border-bottom-color: var(--accent); }

.tab-panel { padding: 1.5rem; }

.admin-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
}
.admin-table th, .admin-table td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.admin-table th { color: var(--muted); font-weight: 600; }

.text-input {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  margin-right: 0.5rem;
  min-width: 300px;
}