:root {
  color-scheme: light;
  --bg: #f5f7f4;
  --ink: #1f2428;
  --muted: #626d78;
  --panel: #ffffff;
  --line: #d8ded6;
  --accent: #245f73;
  --accent-soft: #e1eef1;
  --good: #1a6b3d;
  --warn: #a05a00;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", sans-serif;
  line-height: 1.55;
}

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

header {
  background: #ffffff;
  border-bottom: 1px solid var(--line);
  padding: 32px 0 20px;
}

h1 {
  margin: 0 0 6px;
  font-size: 26px;
}

.subtitle {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 14px;
}

.lang-switch {
  margin-top: 8px;
}

.lang-switch button {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  padding: 4px 12px;
  margin-right: 6px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 13px;
}

.lang-switch button.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

main {
  padding: 32px 0 80px;
}

.step {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px 26px;
  margin: 20px 0;
}

.step h2 {
  margin: 0 0 8px;
  font-size: 19px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 600;
}

.step-help {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 14px;
}

label {
  display: block;
  margin: 12px 0;
}

label > span {
  display: block;
  font-size: 13.5px;
  margin-bottom: 4px;
  color: var(--ink);
}

label.radio,
label.checkbox {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: #fafbfa;
  border: 1px solid var(--line);
  padding: 12px 14px;
  border-radius: 6px;
  margin: 10px 0;
  cursor: pointer;
}

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

label.radio span,
label.checkbox span {
  flex: 1;
  display: block;
  margin-bottom: 0;
}

label.radio strong,
label.checkbox strong {
  display: block;
  margin-bottom: 4px;
}

label.radio small,
label.checkbox small {
  color: var(--muted);
  font-size: 12.5px;
}

input[type="text"],
textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family: inherit;
  font-size: 14px;
  background: #fff;
}

textarea {
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.5;
}

input:focus,
textarea:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}

button {
  background: #fff;
  border: 1px solid var(--line);
  padding: 9px 18px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  color: var(--ink);
  font-family: inherit;
}

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

button:hover:not(:disabled) {
  filter: brightness(0.95);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

#output {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

#output.hidden {
  display: none;
}

.hidden {
  display: none;
}

.success {
  color: var(--good);
  font-weight: 500;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 14px 0;
}

.note {
  font-size: 12.5px;
  color: var(--muted);
  margin-top: 8px;
}

details {
  margin-top: 14px;
}

details summary {
  cursor: pointer;
  font-size: 13.5px;
  color: var(--accent);
}

#preview-files .file-block {
  margin: 10px 0;
}

#preview-files h4 {
  margin: 12px 0 4px;
  font-size: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: var(--accent);
}

pre {
  background: #f1f3f5;
  padding: 12px 14px;
  border-radius: 4px;
  overflow-x: auto;
  font-size: 12.5px;
  line-height: 1.5;
  max-height: 240px;
}

.agent-checkboxes {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 6px;
  margin: 12px 0;
}

.agent-checkboxes label {
  background: #fafbfa;
  border: 1px solid var(--line);
  padding: 6px 10px;
  border-radius: 4px;
  font-size: 13px;
  margin: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
}

.agent-checkboxes label small {
  color: var(--muted);
  font-size: 11.5px;
}

code {
  background: #f1f3f5;
  padding: 1px 5px;
  border-radius: 3px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12.5px;
}

footer {
  background: #ffffff;
  border-top: 1px solid var(--line);
  padding: 22px 0;
  color: var(--muted);
  font-size: 13px;
}

footer p {
  margin: 4px 0;
}

footer a {
  color: var(--accent);
}

.footer-privacy {
  font-size: 12px;
  font-style: italic;
}

@media (max-width: 720px) {
  .container { padding: 0 16px; }
  .step { padding: 18px 18px; }
  h1 { font-size: 22px; }
}