.calc{display:grid;gap:1.25rem}.calc+.calc{margin-top:1.75rem;padding-top:1.75rem;border-top:1px solid var(--gray-200)}.calc h3{margin:0;font-size:1.08rem}.calc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:.9rem 1rem}.calc-field{display:grid;grid-template-rows:1fr auto;gap:.35rem;min-width:0;font-size:.92rem;font-weight:600;color:var(--gray-800)}.calc-field[hidden]{display:none}.calc-field>span:first-child{align-self:end}.calc-field small{font-weight:400;color:var(--gray-600)}.calc-field input,.calc-field select{width:100%;min-width:0;min-height:44px;padding:.55rem .75rem;border:1px solid var(--gray-300);border-radius:12px;background:var(--white);color:var(--gray-900);font:inherit;font-weight:500}.calc-field input:focus-visible,.calc-field select:focus-visible{outline:3px solid rgba(37,99,235,.35);outline-offset:1px;border-color:var(--primary-blue)}.calc-unit{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.4rem}.calc-unit select{width:auto}.calc-check{display:flex;align-items:center;gap:.5rem;font-weight:600;color:var(--gray-800)}.calc-check input{width:1.1rem;height:1.1rem}.calc-results{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:.75rem;padding:1rem;border-radius:18px;background:var(--very-light-blue);border:1px solid rgba(37,99,235,.14)}.calc-result{display:grid;gap:.2rem;min-width:0}.calc-result-label{font-size:.82rem;font-weight:600;color:var(--gray-600)}.calc-result output{font-size:1.15rem;font-weight:700;color:var(--gray-900);overflow-wrap:anywhere}.calc-result-main{grid-column:1 / -1}.calc-result-main output{font-size:1.6rem;color:var(--dark-blue)}.calc-note{grid-column:1 / -1;margin:0;font-size:.95rem;color:var(--gray-700)}.calc-message{margin:0;padding:.7rem .9rem;border-radius:12px;background:#fff7ed;color:#9a3412;font-size:.92rem}.calc-formula{margin:.75rem 0;padding:.8rem 1rem;border-radius:14px;background:var(--gray-100);font-family:var(--font-mono);font-size:.95rem;overflow-wrap:anywhere}.calc-hub{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;padding:0;list-style:none}.calc-hub a{display:grid;gap:.35rem;height:100%;padding:1.1rem 1.2rem;border-radius:18px;border:1px solid rgba(37,99,235,.16);background:#f8fbff;text-decoration:none}.calc-hub a:hover,.calc-hub a:focus-visible{border-color:var(--primary-blue);box-shadow:var(--shadow-md)}.calc-hub strong{color:var(--gray-900);font-size:1.05rem}.calc-hub span{color:var(--gray-700);font-size:.93rem}.scalebar-drop{display:grid;justify-items:start;gap:.6rem;padding:1.1rem;border:2px dashed rgba(37,99,235,.35);border-radius:18px;background:#f8fbff}.scalebar-drop input[type=file]{max-width:100%;font:inherit}.scalebar-stage{display:grid;gap:.75rem}.scalebar-stage[hidden]{display:none}.scalebar-stage canvas{display:block;max-width:100%;height:auto;max-height:70vh;margin:0 auto;border-radius:12px;background:var(--gray-900);cursor:crosshair}.scalebar-actions{display:flex;flex-wrap:wrap;align-items:end;gap:.75rem}.scalebar-actions .btn[disabled]{opacity:.5;cursor:not-allowed}.scalebar-status{margin:0;min-height:1.5em;color:var(--gray-700);font-size:.95rem}@media(max-width:560px){.calc-grid,.calc-results{grid-template-columns:minmax(0,1fr)}}