:root {
  color-scheme: light dark;
  --fg: #1a1a1a;
  --bg: #fafafa;
  --card-bg: #ffffff;
  --border: #dddddd;
  --accent: #3366cc;
  --muted: #666666;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e8e8e8;
    --bg: #15161a;
    --card-bg: #202229;
    --border: #33353d;
    --accent: #6c9bff;
    --muted: #9a9ca3;
  }
}

* {
  box-sizing: border-box;
}

/* Class rules like `.whoami { display: flex }` would otherwise override the
   hidden attribute (it showed "Log out" on the login screen). */
[hidden] {
  display: none !important;
}

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

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

header h1 {
  margin: 0;
  font-size: 1.3rem;
}

.whoami {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--muted);
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 1.5rem;
}

#login-view {
  max-width: 420px;
  margin: 3rem auto;
  text-align: center;
}

.login-methods {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.login-row {
  display: flex;
  gap: 0.5rem;
  margin: 1rem 0;
}

#code-input {
  letter-spacing: 0.3em;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button.link {
  background: none;
  border: none;
  color: var(--accent);
  padding: 0.25rem 0.5rem;
}

.muted {
  color: var(--muted);
}

input[type="text"] {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--fg);
}

button {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

button.secondary,
.whoami button {
  background: transparent;
  color: var(--fg);
}

.error {
  color: #d64545;
}

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.tab-button {
  background: none;
  border: none;
  border-radius: 0;
  color: var(--muted);
  padding: 0.6rem 0.9rem;
  border-bottom: 2px solid transparent;
}

.tab-button.active {
  color: var(--fg);
  border-bottom-color: var(--accent);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.card-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.card-list li {
  border: 1px solid var(--border);
  background: var(--card-bg);
  border-radius: 8px;
  padding: 0.85rem 1rem;
}

.card-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
}

.badges {
  display: flex;
  gap: 0.35rem;
}

.badge {
  font-size: 0.7rem;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}

.badge.on {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

.card-body {
  margin-top: 0.4rem;
  font-size: 0.9rem;
  color: var(--muted);
  white-space: pre-wrap;
}

.card-meta {
  margin-top: 0.4rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.empty {
  color: var(--muted);
  font-style: italic;
}