:root {
  --ink: #1a1f2b;
  --ink-soft: #5b6472;
  --line: #dde1e7;
  --bg: #f6f7f9;
  --card: #ffffff;
  --accent: #2952e3;
  --accent-ink: #ffffff;
  --danger: #b3261e;
  --ok: #1b7a3d;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.45;
}

.app {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px 16px 80px;
}

.app-header h1 {
  margin: 0 0 4px;
  font-size: 1.6rem;
}

.subtitle {
  margin: 0 0 24px;
  color: var(--ink-soft);
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.card h2 {
  margin-top: 0;
  font-size: 1.15rem;
}

.hint {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin-top: -8px;
}

label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 12px;
}

input, textarea {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 10px;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

textarea {
  resize: vertical;
}

.row {
  display: flex;
  gap: 10px;
}

.row label {
  flex: 1;
}

.row .short {
  flex: 0 0 90px;
}

button {
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

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

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

.link-button {
  border: none;
  background: none;
  color: var(--accent);
  padding: 0;
  font-weight: 600;
  font-size: 0.9rem;
}

.actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

.hidden { display: none !important; }

.saved-summary {
  background: #f0f4ff;
  border-radius: 8px;
  padding: 12px 14px;
  margin-top: 8px;
}

.saved-summary p {
  margin: 0 0 8px;
}

.official {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 10px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.official input[type="checkbox"] {
  width: auto;
  margin-top: 3px;
}

.official-info {
  flex: 1;
}

.official-name {
  font-weight: 700;
}

.official-office {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.official-meta {
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 4px;
}

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  padding: 2px 8px;
  border-radius: 999px;
  margin-left: 6px;
}

.badge.email {
  background: #e4f5e9;
  color: var(--ok);
}

.badge.web-form {
  background: #fdf0e4;
  color: #a05a12;
}

.official-actions {
  margin-top: 6px;
}

.official-actions a {
  font-size: 0.85rem;
  color: var(--accent);
}

#grammar-results {
  margin-top: 16px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.grammar-issue {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
}

.grammar-issue:last-child {
  border-bottom: none;
}

.grammar-issue .msg {
  font-weight: 600;
}

.grammar-issue .suggestions {
  color: var(--ink-soft);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 18, 26, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 10;
}

.modal-content {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  max-width: 560px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
}

.preview-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 12px;
}

.preview-item .to {
  font-weight: 700;
  margin-bottom: 6px;
}

.preview-item .subject {
  font-weight: 600;
  margin-bottom: 6px;
}

.preview-item .body {
  white-space: pre-wrap;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: #fff;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 0.9rem;
  z-index: 20;
}

.toast.error {
  background: var(--danger);
}