.ideation-hero[data-astro-cid-puz67stk]{padding-top:4rem;padding-bottom:1rem}.ideation[data-astro-cid-puz67stk] h1[data-astro-cid-puz67stk]{font-size:2.25rem;font-weight:800;letter-spacing:-1px;margin-bottom:.75rem}.accent[data-astro-cid-puz67stk]{color:var(--accent-text)}.ideation[data-astro-cid-puz67stk] h2[data-astro-cid-puz67stk]{font-size:1.25rem;margin:3rem 0 1rem}.ideation[data-astro-cid-puz67stk] h3[data-astro-cid-puz67stk]{font-size:.95rem;font-weight:600;margin-bottom:4px;color:var(--text-primary)}.ideation[data-astro-cid-puz67stk] p[data-astro-cid-puz67stk]{font-size:.95rem;color:var(--text-secondary);line-height:1.7}.subtitle[data-astro-cid-puz67stk]{font-size:1.0625rem;color:var(--text-secondary);margin-bottom:2rem;max-width:600px;line-height:1.7}.principles[data-astro-cid-puz67stk]{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-bottom:3rem}.principle[data-astro-cid-puz67stk]{background:var(--surface-1);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;transition:border-color .15s ease,background-color .15s ease}.principle[data-astro-cid-puz67stk] h3[data-astro-cid-puz67stk]{margin-bottom:.5rem}.principle[data-astro-cid-puz67stk] p[data-astro-cid-puz67stk]{font-size:.875rem;color:var(--text-secondary);line-height:1.6}.principle[data-astro-cid-puz67stk] strong[data-astro-cid-puz67stk]{color:var(--text-primary)}.divider[data-astro-cid-puz67stk]{border:none;border-top:1px solid var(--border);margin:3rem 0}.step[data-astro-cid-puz67stk]{margin-bottom:2rem;padding-left:3rem;position:relative}.step-number[data-astro-cid-puz67stk]{position:absolute;left:0;top:0;width:2rem;height:2rem;border-radius:50%;background:var(--surface-1);border:1.5px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:.875rem;font-weight:700;color:var(--text-tertiary);font-family:var(--font-mono)}.step-label[data-astro-cid-puz67stk]{font-size:.6875rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-tertiary);margin-bottom:4px;font-weight:600}.step[data-astro-cid-puz67stk] h3[data-astro-cid-puz67stk]{font-size:1.125rem;margin-bottom:.5rem}.step[data-astro-cid-puz67stk] p[data-astro-cid-puz67stk]{margin-bottom:.5rem}.hint[data-astro-cid-puz67stk]{font-size:.8125rem;color:var(--text-tertiary);font-style:italic;border-left:2px solid var(--border);padding-left:.75rem;margin-top:.75rem}.hint[data-astro-cid-puz67stk] strong[data-astro-cid-puz67stk]{color:var(--text-secondary);font-style:normal}.formula-box[data-astro-cid-puz67stk]{background:var(--accent-soft);border:1px solid var(--border);border-radius:var(--radius-sm);padding:1rem 1.25rem;font-size:.875rem;font-weight:600;color:var(--accent-text);line-height:1.8;margin-top:.75rem}.formula-box[data-astro-cid-puz67stk] .dim[data-astro-cid-puz67stk]{font-weight:400;color:var(--text-tertiary);font-size:.8125rem}.callout[data-astro-cid-puz67stk]{background:var(--surface-1);border-left:3px solid var(--accent);padding:1.25rem 1.5rem;margin:3rem 0;border-radius:0 var(--radius-sm) var(--radius-sm) 0;transition:background-color .15s ease}.callout[data-astro-cid-puz67stk] p[data-astro-cid-puz67stk]{font-size:.95rem;color:var(--text-secondary)}.callout[data-astro-cid-puz67stk] strong[data-astro-cid-puz67stk]{color:var(--text-primary)}.compare[data-astro-cid-puz67stk]{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-bottom:3rem}.compare-card[data-astro-cid-puz67stk]{padding:1.25rem;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface-1);transition:border-color .15s ease,background-color .15s ease}.compare-card[data-astro-cid-puz67stk].wrong{border-left:3px solid #ef4444}.compare-card[data-astro-cid-puz67stk].right{border-left:3px solid #22c55e}.compare-tag[data-astro-cid-puz67stk]{font-size:.6875rem;text-transform:uppercase;letter-spacing:.06em;font-weight:700;margin-bottom:.5rem}.compare-card[data-astro-cid-puz67stk].wrong .compare-tag[data-astro-cid-puz67stk]{color:#ef4444}.compare-card[data-astro-cid-puz67stk].right .compare-tag[data-astro-cid-puz67stk]{color:#22c55e}.compare-card[data-astro-cid-puz67stk] h3[data-astro-cid-puz67stk]{font-size:.95rem;margin-bottom:.5rem}.compare-card[data-astro-cid-puz67stk] p[data-astro-cid-puz67stk]{font-size:.8125rem}.worksheet[data-astro-cid-puz67stk]{background:var(--surface-1);border:1px solid var(--border);border-radius:var(--radius);padding:1.75rem;margin-top:3rem;margin-bottom:4rem;transition:border-color .15s ease,background-color .15s ease}.ws-header[data-astro-cid-puz67stk]{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:1rem;margin-bottom:1.25rem}.ws-header[data-astro-cid-puz67stk] h2[data-astro-cid-puz67stk]{margin:0;font-size:1.25rem}.ws-controls[data-astro-cid-puz67stk]{display:flex;gap:1rem}.ws-controls[data-astro-cid-puz67stk] label[data-astro-cid-puz67stk]{font-size:.6875rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-tertiary);display:flex;flex-direction:column;gap:4px;font-weight:600}.ws-controls[data-astro-cid-puz67stk] input[data-astro-cid-puz67stk]{width:4rem;padding:6px 8px;border:1px solid var(--border);border-radius:var(--radius-xs);font-size:.95rem;font-weight:600;text-align:center;color:var(--text-primary);background:var(--bg);font-family:var(--font-mono)}table[data-astro-cid-puz67stk]{width:100%;border-collapse:collapse;font-size:.875rem}thead th{font-size:.6875rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-tertiary);font-weight:600;text-align:left;padding:.5rem .625rem;border-bottom:1.5px solid var(--border)}thead th.computed-head{color:var(--accent-text)}tbody td{padding:.5rem .625rem;border-bottom:1px solid var(--border);vertical-align:top}tbody td.idx{color:var(--text-tertiary);font-size:.8125rem;width:28px;font-family:var(--font-mono)}tbody td textarea,tbody td input[type=text]{width:100%;border:none;background:transparent;font-family:inherit;font-size:.875rem;color:var(--text-primary);resize:none;outline:none;line-height:1.5;min-height:40px}tbody td textarea::placeholder,tbody td input::placeholder{color:var(--text-tertiary)}td.computed-cell{background:var(--accent-soft)}.computed-val{font-weight:700;font-size:.95rem;color:var(--accent-text);font-family:var(--font-mono)}.computed-note{font-size:.6875rem;color:var(--text-tertiary)}.del-btn{background:none;border:none;color:var(--text-tertiary);cursor:pointer;font-size:1.125rem;padding:4px 8px;transition:color .15s ease}.del-btn:hover{color:#ef4444}.add-btn[data-astro-cid-puz67stk]{margin-top:.75rem;width:100%;background:var(--bg);border:1px dashed var(--border);border-radius:var(--radius-sm);color:var(--text-tertiary);font-size:.8125rem;padding:.75rem;cursor:pointer;font-family:inherit;transition:border-color .15s ease,color .15s ease}.add-btn[data-astro-cid-puz67stk]:hover{border-color:var(--border-hover);color:var(--text-secondary)}.summary[data-astro-cid-puz67stk]{display:grid;grid-template-columns:1fr 1fr 1fr;gap:.75rem;margin-top:1.25rem}.sum-card[data-astro-cid-puz67stk]{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:1rem;transition:border-color .15s ease,background-color .15s ease}.sum-label[data-astro-cid-puz67stk]{font-size:.6875rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-tertiary);margin-bottom:6px;font-weight:600}.sum-val[data-astro-cid-puz67stk]{font-size:1.375rem;font-weight:700;font-family:var(--font-mono)}.sum-sub[data-astro-cid-puz67stk]{font-size:.75rem;color:var(--text-tertiary);margin-top:2px}.sum-card[data-astro-cid-puz67stk].tam .sum-val[data-astro-cid-puz67stk]{color:var(--text-primary)}.sum-card[data-astro-cid-puz67stk].rev .sum-val[data-astro-cid-puz67stk]{color:var(--status-active-text)}.sum-card[data-astro-cid-puz67stk].val .sum-val[data-astro-cid-puz67stk]{color:var(--accent-text)}@media(max-width:640px){.ideation-hero[data-astro-cid-puz67stk]{padding-top:3rem}.ideation[data-astro-cid-puz67stk] h1[data-astro-cid-puz67stk]{font-size:1.75rem}.principles[data-astro-cid-puz67stk],.compare[data-astro-cid-puz67stk],.summary[data-astro-cid-puz67stk]{grid-template-columns:1fr}table[data-astro-cid-puz67stk]{font-size:.8125rem}.hide-sm{display:none}}