:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1d212b;
  --border: #2a2f3a;
  --text: #e6e9ef;
  --muted: #8b93a3;
  --accent: #5b9dff;
  --accent-2: #3a7bd5;
  --danger: #ff6b6b;
  --ok: #54d18c;
  --radius: 10px;
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas,
    monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.app {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

header h1 {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
}

header .sub {
  margin: 0.25rem 0 1.5rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.controls {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1 1 200px;
}

label,
.field-label {
  font-size: 0.8rem;
  color: var(--muted);
}

.field-label {
  display: block;
  margin: 1.25rem 0 0.4rem;
}

.muted {
  color: var(--muted);
  font-weight: normal;
}

.persona-desc {
  margin: 0.75rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
  min-height: 1.2em;
}

select,
textarea,
input[type="text"] {
  width: 100%;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.6rem 0.7rem;
  font: inherit;
  font-size: 0.9rem;
  resize: vertical;
}

select:focus,
textarea:focus,
input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
}

.actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.25rem;
}

button {
  font: inherit;
  font-size: 0.9rem;
  border-radius: var(--radius);
  padding: 0.55rem 1.1rem;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: background 0.12s, border-color 0.12s, opacity 0.12s;
}

button.primary {
  background: var(--accent-2);
  border-color: var(--accent-2);
  color: white;
}

button.primary:hover:not(:disabled) {
  background: var(--accent);
}

button.ghost {
  background: var(--panel-2);
  color: var(--text);
}

button.ghost:hover:not(:disabled) {
  border-color: var(--accent);
}

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

.status {
  font-size: 0.8rem;
  color: var(--muted);
}

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

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

#result {
  margin-top: 0.4rem;
}

.result-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.5rem;
}

.charcount {
  font-size: 0.8rem;
  color: var(--muted);
}

.charcount.over {
  color: var(--danger);
  font-weight: bold;
}

footer {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.72rem;
  color: var(--muted);
  text-align: center;
}