:root {
  --bg: #f7f7f5;
  --card: #ffffff;
  --border: #e5e5e2;
  --text: #1c1c1c;
  --muted: #6b6b66;
  --accent: #0e6a4d;
  --accent-hover: #0b5a40;
  --warn: #b45309;
  --error: #b91c1c;
}

* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

header {
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 24px 16px;
}

h1 {
  font-size: 28px;
  margin: 0 0 8px;
  letter-spacing: -0.5px;
}

h2 {
  font-size: 16px;
  margin: 0 0 16px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.subtitle {
  color: var(--muted);
  margin: 0;
  max-width: 640px;
}

section {
  max-width: 960px;
  margin: 16px auto;
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.input-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  align-items: stretch;
}

textarea {
  width: 100%;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  resize: vertical;
  background: #fafafa;
}

textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

.or {
  align-self: center;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.file-area {
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 24px;
  background: #fafafa;
}

.file-label {
  display: block;
  margin-bottom: 12px;
  font-size: 13px;
}

.file-label .hint {
  display: block;
  margin-top: 4px;
  font-weight: 400;
}

.hint {
  color: var(--muted);
  font-size: 12px;
}

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}

.checkbox input {
  margin-top: 4px;
}

.checkbox .hint {
  display: block;
  margin-top: 2px;
}

button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

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

button:disabled {
  background: #aaa;
  cursor: not-allowed;
}

button.secondary {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

button.secondary:hover:not(:disabled) {
  background: var(--bg);
  color: var(--text);
}

.action-card {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status {
  color: var(--muted);
  font-size: 13px;
}

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

.summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 8px;
  margin-bottom: 16px;
  padding: 12px;
  background: var(--bg);
  border-radius: 8px;
  font-size: 12px;
}

.summary .stat {
  display: flex;
  flex-direction: column;
}

.summary .stat-label {
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.summary .stat-value {
  font-weight: 600;
  font-size: 18px;
  font-feature-settings: "tnum";
}

.actions {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

th, td {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

th {
  background: var(--bg);
  font-weight: 600;
  position: sticky;
  top: 0;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 11px;
}

tr:last-child td {
  border-bottom: none;
}

.pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}

.pill.ok { background: #ddead4; color: #1c5132; }
.pill.no { background: #efefea; color: var(--muted); }
.pill.warn { background: #fde6c4; color: var(--warn); }
.pill.err { background: #fcd6d6; color: var(--error); }