:root {
  --bg: #f5f5f3;
  --surface: #ffffff;
  --text: #1f1f1f;
  --muted: #6f6f6f;
  --line: #d8d8d4;
  --strong-line: #bdbdb7;
}

* { box-sizing: border-box; }

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

.shell {
  width: min(880px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 36px;
}

.header {
  margin-bottom: 28px;
}

h1 {
  margin: 0 0 8px;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.header p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.input-block,
.result-section {
  background: var(--surface);
  border: 1px solid var(--line);
}

.input-block {
  padding: 18px;
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 650;
}

textarea {
  width: 100%;
  min-height: 92px;
  resize: vertical;
  border: 1px solid var(--strong-line);
  border-radius: 0;
  background: #fff;
  color: var(--text);
  padding: 12px;
  outline: none;
  font: 17px/1.6 "Noto Sans TC", "Noto Sans KR", sans-serif;
}

textarea:focus {
  border-color: #444;
}

.actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

button {
  appearance: none;
  border: 1px solid var(--strong-line);
  border-radius: 0;
  background: #fff;
  color: var(--text);
  padding: 7px 12px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

button:hover { background: #f1f1ee; }
button:disabled { opacity: .45; cursor: wait; }

.primary {
  background: #222;
  border-color: #222;
  color: #fff;
}

.primary:hover { background: #000; }

#status {
  margin-left: 4px;
  color: var(--muted);
  font-size: 13px;
}

.results {
  display: grid;
  gap: 16px;
}

.hidden { display: none; }

.result-section h2 {
  margin: 0;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  font-weight: 700;
}

.han {
  color: var(--muted);
  font-weight: 500;
}

.row {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  min-height: 48px;
  padding: 11px 12px 11px 14px;
  border-top: 1px solid #ecece8;
}

.result-section h2 + .row { border-top: 0; }

.row.single {
  grid-template-columns: minmax(0, 1fr) auto;
}

.label {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

code {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-family: "SFMono-Regular", Consolas, "Noto Sans Mono", monospace;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text);
}

.copy {
  padding: 4px 7px;
  color: var(--muted);
  font-size: 11px;
}

.notes {
  margin: 18px 2px 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
}

.notes p { margin: 4px 0; }

footer {
  margin-top: 28px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: #8a8a84;
  font-size: 11px;
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 20px, 880px);
    padding-top: 26px;
  }

  h1 { font-size: 25px; }

  .row {
    grid-template-columns: 1fr auto;
    gap: 7px 10px;
  }

  .row .label {
    grid-column: 1 / 3;
  }
}

.external-tools {
  margin-top: 14px;
  font-size: 13px;
}

.external-tools a,
.license-dialog a {
  color: var(--text);
  text-underline-offset: 3px;
}

footer {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

footer strong { font-weight: 600; }

.footer-link {
  border: 0;
  padding: 0;
  background: transparent;
  color: inherit;
  font-size: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-link:hover { background: transparent; color: var(--text); }

.license-dialog {
  width: min(620px, calc(100% - 28px));
  padding: 0;
  border: 1px solid var(--strong-line);
  border-radius: 0;
  background: var(--surface);
  color: var(--text);
}

.license-dialog::backdrop { background: rgba(0, 0, 0, .28); }

.license-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

.license-head h2 { margin: 0; font-size: 14px; }
.dialog-close { padding: 4px 8px; }
.license-body { padding: 14px; font-size: 12px; line-height: 1.65; }
.license-body section + section { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.license-body h3 { margin: 0 0 6px; font-size: 13px; }
.license-body p { margin: 4px 0; }
.license-note { margin-top: 18px !important; color: var(--muted); }