:root {
  color-scheme: light dark;
  --bg: #f7f7f8;
  --fg: #1a1a1a;
  --muted: #666;
  --border: #d8d8dc;
  --accent: #2f5fd6;
  --accent-fg: #fff;
  --card: #fff;
  --error: #c0362c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17181c;
    --fg: #eaeaea;
    --muted: #9a9a9a;
    --border: #333438;
    --card: #202126;
  }
}

* {
  box-sizing: border-box;
}

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

main {
  max-width: 820px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.logout-link {
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
  white-space: nowrap;
  margin-top: 0.3rem;
}

.logout-link:hover {
  text-decoration: underline;
}

h1 {
  margin: 0;
  font-size: 1.6rem;
}

.subtitle {
  margin: 0 0 1.5rem;
  color: var(--muted);
}

label {
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: 1rem;
}

select,
textarea,
input[type="password"] {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--fg);
  font-size: 0.95rem;
  font-family: inherit;
}

textarea {
  min-height: 220px;
  resize: vertical;
  line-height: 1.4;
}

#output-text {
  min-height: 320px;
}

button {
  align-self: flex-start;
  margin-top: 1rem;
  padding: 0.65rem 1.4rem;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-fg);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

button:disabled {
  opacity: 0.6;
  cursor: default;
}

.actions {
  display: flex;
  gap: 0.75rem;
}

.actions button {
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--border);
}

.status {
  min-height: 1.2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.status.error {
  color: var(--error);
}

.hidden {
  display: none;
}

.login-main {
  max-width: 360px;
  margin: 4rem auto 0;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 1.5rem;
}