h1 {
  margin-top: 32px;
  margin-bottom: 8px;
  font-size: 2rem;
}

.lede {
  color: var(--muted);
  margin-top: 0;
  margin-bottom: 28px;
  max-width: 60ch;
}

.tool--gpa {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  display: block;
  margin-bottom: 6px;
}

select, input[type="number"], input[type="text"] {
  width: 100%;
  font: inherit;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--ink);
}

.course-row-header {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1fr 32px;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  padding: 0 0 6px;
}

.course-row {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1fr 32px;
  gap: 10px;
  align-items: center;
  padding: 6px 0;
}

.remove-row-btn {
  background: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  cursor: pointer;
  width: 32px;
  height: 38px;
  font-size: 1rem;
  line-height: 1;
}

.remove-row-btn:hover {
  border-color: #c0392b;
  color: #c0392b;
}

.add-row-btn {
  font: inherit;
  font-weight: 600;
  padding: 10px 16px;
  margin: 12px 0 24px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--accent);
  cursor: pointer;
}

.add-row-btn:hover { border-color: var(--accent); }

.tool__output {
  border-top: 1px solid var(--line);
  padding-top: 20px;
  text-align: center;
}

.result {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 160px;
  min-height: 64px;
  font-size: 1.75rem;
  font-weight: 700;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 24px;
}

.sentence {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.faq { margin-top: 48px; max-width: 70ch; }

.faq h2 { font-size: 1.3rem; margin-top: 32px; }

details {
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
}

details summary {
  cursor: pointer;
  font-weight: 600;
}

@media (max-width: 640px) {
  .course-row-header { display: none; }
  .course-row {
    grid-template-columns: 1fr 1fr auto;
    grid-template-areas: "name name remove" "grade credits remove";
    row-gap: 6px;
  }
  .course-row input[type="text"] { grid-area: name; }
  .course-row select { grid-area: grade; }
  .course-row input[type="number"] { grid-area: credits; }
  .course-row .remove-row-btn { grid-area: remove; }
}