.settings-panel{padding:1.5rem 2rem;background:#fafbff;border-bottom:1px solid var(--border)}.settings-label{font-size:0.7rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:1rem}.settings-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0.8rem}@media (max-width:700px){.settings-grid{grid-template-columns:1fr 1fr}}@media (max-width:420px){.settings-grid{grid-template-columns:1fr}}.check-item{display:flex;align-items:center;gap:9px;cursor:pointer;padding:9px 12px;background:#fff;border:1.5px solid var(--border2);border-radius:9px;transition:all 0.18s;user-select:none}.check-item:hover{border-color:var(--accent);background:var(--accent-lt)}.check-item input[type="checkbox"]{margin-bottom:0;width:15px;height:15px;accent-color:var(--accent);cursor:pointer;flex-shrink:0}.check-item span{font-size:0.8rem;font-weight:500;color:var(--sub)}.check-item.checked{border-color:var(--accent);background:var(--accent-lt)}.check-item.checked span{color:var(--accent)}.main-layout{display:grid;grid-template-columns:1fr 1fr;min-height:460px}@media (max-width:680px){.main-layout{grid-template-columns:1fr}}.input-side{border-right:1px solid var(--border);display:flex;flex-direction:column}@media (max-width:680px){.input-side{border-right:none;border-bottom:1px solid var(--border)}}.output-side{display:flex;flex-direction:column}.side-header{padding:0.9rem 1.4rem;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:#fafbff;gap:8px;flex-wrap:wrap}.side-title{font-size:0.72rem;font-weight:700;color:var(--sub);text-transform:uppercase;letter-spacing:1px}.side-meta{font-size:0.68rem;color:var(--muted)}.side-actions{display:flex;gap:6px}.small-btn{padding:5px 11px;background:#fff;border:1px solid var(--border2);color:var(--sub);border-radius:7px;font-size:0.73rem;font-weight:600;cursor:pointer;transition:all 0.18s;white-space:nowrap}.small-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-lt)}.small-btn.green{color:var(--green);border-color:#6ee7b7;background:var(--green-lt)}.small-btn.green:hover{background:#a7f3d0}.small-btn.danger{color:var(--red)}.small-btn.danger:hover{border-color:var(--red);background:var(--red-lt)}.small-btn.upload{color:var(--accent);border-color:#c4b5fd}.small-btn.upload:hover{background:var(--accent-lt)}.small-btn:disabled{opacity:0.6;cursor:not-allowed}.small-btn.dl-action{background:var(--green);color:#fff;border-color:var(--green);font-weight:700;box-shadow:0 2px 6px rgba(16,185,129,0.3)}.small-btn.dl-action:hover{background:#059669;border-color:#059669;color:#fff}.data-textarea{flex:1;width:100%;min-height:400px;padding:1rem 1.2rem;background:#fff;color:var(--text);border:none;outline:none;resize:none;font-size:0.78rem;line-height:1.7;tab-size:4}.data-textarea::placeholder{color:var(--muted)}.data-textarea.output{background:#f8f9ff}.action-bar{padding:1.2rem 2rem;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;background:#fafbff}.stats-row{display:flex;gap:1.2rem;flex-wrap:wrap}.stat-chip{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--border2);border-radius:8px;padding:5px 12px;font-size:0.72rem;color:var(--sub)}.stat-chip strong{color:var(--accent);font-weight:700}.stat-chip.green{border-color:#6ee7b7;background:var(--green-lt)}.stat-chip.green strong{color:var(--green)}.clean-btn{display:inline-flex;align-items:center;gap:8px;padding:11px 28px;background:linear-gradient(135deg,var(--accent) 0%,#7c3aed 100%);color:#fff;border:none;border-radius:10px;font-size:0.88rem;font-weight:700;cursor:pointer;transition:all 0.2s;box-shadow:0 3px 12px rgba(79,70,229,0.35)}.clean-btn:hover{opacity:0.92;transform:translateY(-1px)}.formula-section{border-top:1px solid var(--border);padding:1.2rem 2rem}.formula-label{font-size:0.7rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:0.8rem}.formula-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:10px}.formula-item{background:#f8f9ff;border:1px solid var(--border);border-radius:10px;padding:11px 14px;display:flex;flex-direction:column;gap:4px}.formula-name{font-size:0.75rem;font-weight:700;color:var(--accent)}.formula-code{font-size:0.72rem;color:var(--sub);word-break:break-all}.formula-desc{font-size:0.7rem;color:var(--muted)}.copy-formula-btn{align-self:flex-start;margin-top:4px;padding:3px 10px;background:var(--accent-lt);border:1px solid #c4b5fd;color:var(--accent);border-radius:6px;font-size:0.7rem;font-weight:600;cursor:pointer;transition:all 0.15s}.copy-formula-btn:hover{background:#ddd6fe}#fileInput{display:none}@media (max-width:767px){.settings-panel,.action-bar,.formula-section{padding-left:1.2rem;padding-right:1.2rem}.side-header{padding:0.8rem 1rem}.data-textarea{padding:0.8rem 1rem;font-size:0.75rem}}