:root {
  --bg: #f4efe7;
  --panel: #fffaf2;
  --text: #1f1a16;
  --muted: #6f6357;
  --line: #d8cbb9;
  --accent: #7d4f35;
  --accent-dark: #59331f;
  --danger: #9a342c;
  --soft: #eadfcc;
  --shadow: 0 18px 45px rgba(59, 43, 31, 0.12);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  background: radial-gradient(circle at top left, #fff8eb 0, var(--bg) 42%, #e9ddce 100%);
  color: var(--text);
  line-height: 1.5;
}

.app-header,
.app-footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 20px 20px;
}

.app-header h1 {
  margin: 0;
  font-size: clamp(2.1rem, 5vw, 4.2rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  font-size: 0.78rem;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 700;
}

.subtitle {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.08rem;
}

.layout {
  max-width: 1180px;
  margin: 0 auto 48px;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.panel {
  background: color-mix(in srgb, var(--panel) 92%, white 8%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}

.panel h2 {
  margin: 0 0 14px;
  font-size: 1.45rem;
}

.help {
  color: var(--muted);
  margin-top: -4px;
}

.form-grid,
.trim-controls {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.trim-controls {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

label,
.textarea-label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--muted);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 650;
}

input,
textarea,
button {
  font: inherit;
}

input,
textarea {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 11px 12px;
  background: #fffdf8;
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

input:focus,
textarea:focus {
  outline: 3px solid rgba(125, 79, 53, 0.18);
  border-color: var(--accent);
}

textarea {
  min-height: 220px;
  resize: vertical;
  line-height: 1.45;
}

#jsonPreview {
  min-height: 260px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.86rem;
}

.file-row,
.button-row,
.table-tools,
.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin: 12px 0;
}

.file-picker {
  display: inline-flex;
  color: var(--text);
  background: var(--soft);
  border: 1px dashed var(--accent);
  border-radius: 14px;
  padding: 12px 14px;
  cursor: pointer;
}

.file-picker input {
  display: none;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 11px 16px;
  background: var(--accent);
  color: white;
  cursor: pointer;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 750;
}

button:hover {
  background: var(--accent-dark);
}

button.secondary {
  background: var(--soft);
  color: var(--accent-dark);
  border: 1px solid var(--line);
}

button.secondary:hover {
  background: #dfcfba;
}

button.danger {
  background: var(--danger);
}

.stats span {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--accent-dark);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
}

.table-tools {
  justify-content: space-between;
}

.table-tools input {
  flex: 1 1 280px;
}

.sentence-table-wrap {
  overflow: auto;
  max-height: 520px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fffdf8;
}

.sentence-table {
  width: 100%;
  border-collapse: collapse;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.9rem;
}

.sentence-table th,
.sentence-table td {
  border-bottom: 1px solid var(--line);
  padding: 8px;
  vertical-align: top;
}

.sentence-table th {
  position: sticky;
  top: 0;
  background: #f2e6d5;
  z-index: 2;
  text-align: left;
}

.sentence-table td:first-child {
  white-space: nowrap;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.sentence-table textarea {
  min-height: 52px;
  width: 100%;
  resize: vertical;
  padding: 8px;
  border-radius: 9px;
  font-size: 0.9rem;
}

.sentence-table input[type="number"] {
  width: 78px;
  padding: 8px;
}

.delete-row {
  padding: 7px 10px;
  background: transparent;
  color: var(--danger);
  border: 1px solid rgba(154, 52, 44, 0.3);
}

.delete-row:hover {
  background: rgba(154, 52, 44, 0.08);
  color: var(--danger);
}

.app-footer {
  padding-top: 0;
  color: var(--muted);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.9rem;
}

@media (max-width: 850px) {
  .form-grid,
  .trim-controls {
    grid-template-columns: 1fr;
  }

  .panel {
    padding: 18px;
  }

  .sentence-table {
    min-width: 760px;
  }
}

.split-options {
  display: grid;
  gap: 0.85rem;
  margin: 1rem 0;
}

.small-textarea textarea {
  min-height: 7.5rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: #3f3a35;
  font-size: 0.95rem;
}

.check-row input {
  width: auto;
}