:root {
  color-scheme: light;
  font-family: Arial, "Malgun Gothic", sans-serif;
  background: #f5f6f2;
  color: #1f2623;
}
* { box-sizing: border-box; }
body { margin: 0; }
.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0 56px;
}
.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  border-bottom: 1px solid #cbd4cd;
  padding-bottom: 28px;
}
.eyebrow { margin: 0 0 8px; font-size: 14px; color: #456257; }
h1 { margin: 0; font-size: clamp(32px, 5vw, 56px); line-height: 1.04; letter-spacing: 0; }
.lead { max-width: 680px; font-size: 18px; line-height: 1.6; color: #3c4742; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.button, button {
  border: 1px solid #1f2623;
  background: #fff;
  color: #1f2623;
  border-radius: 6px;
  padding: 12px 16px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}
.button.primary { background: #1f5b45; color: #fff; border-color: #1f5b45; }
.tool, .sample, article {
  margin-top: 24px;
  border: 1px solid #cbd4cd;
  border-radius: 8px;
  background: #fff;
  padding: 22px;
}
label { display: block; margin-bottom: 8px; font-weight: 700; }
.inputrow { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
input {
  width: 100%;
  border: 1px solid #9aa8a1;
  border-radius: 6px;
  padding: 12px 14px;
  font-size: 16px;
}
.result { min-height: 24px; color: #4c5b55; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
h2 { margin: 0 0 12px; font-size: 22px; }
ul { margin: 0; padding-left: 20px; line-height: 1.8; }
@media (max-width: 760px) {
  .hero, .inputrow, .grid { grid-template-columns: 1fr; }
  .actions { justify-content: flex-start; }
}