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.2s;position:relative;overflow:hidden}.history-entry:hover .history-thumb-wrap{border-color:var(--primary-cyan);box-shadow:0 0 8px #22d3ee4d}.history-thumb{object-fit:cover;width:100%;height:100%;display:block}.history-thumb-placeholder{width:100%;height:100%;color:var(--calc-text-muted);background:var(--card-bg);justify-content:center;align-items:center;font-size:.7rem;display:flex}.history-delete-btn{color:#fff;cursor:pointer;opacity:0;background:#000000b3;border:none;border-radius:50%;justify-content:center;align-items:center;width:16px;height:16px;padding:0;font-size:.6rem;line-height:1;transition:opacity .2s;display:flex;position:absolute;top:2px;right:2px}.history-entry:hover .history-delete-btn{opacity:1}.history-type-badge{letter-spacing:.5px;color:var(--primary-cyan);text-transform:uppercase;text-align:center;margin-top:3px;font-size:.55rem;font-weight:700}.history-value-preview{color:var(--calc-text-muted);text-align:center;text-overflow:ellipsis;white-space:nowrap;width:68px;font-size:.6rem;line-height:1.3;overflow:hidden}.kbd-hint{color:var(--calc-text-muted);border:1px solid var(--glass-border);vertical-align:middle;background:#ffffff0f;border-radius:3px;margin-left:4px;padding:1px 4px;font-family:Courier New,monospace;font-size:.58rem;display:none}.download-btn:hover .kbd-hint,#copy-btn:hover .kbd-hint{display:inline}.preset-btn[data-preset=forest]{background:linear-gradient(135deg,#166534,#84cc16)}.preset-btn[data-preset=lava]{background:linear-gradient(135deg,#991b1b,#f97316)}.preset-btn[data-preset=ice]{background:linear-gradient(135deg,#1e3a5f,#93c5fd)}.preset-btn[data-preset=gold]{background:linear-gradient(135deg,#78350f,#fbbf24)}.glass-textarea{resize:vertical;min-height:52px}@media (width<=900px){.qr-intel-panel{grid-template-columns:repeat(4,1fr)}.scan-meter-breakdown{grid-template-columns:1fr 1fr}.bg-preview-toggle{margin-bottom:4px}.history-entry{width:70px}.history-thumb-wrap{width:62px;height:62px}.history-value-preview{width:62px}}@media (width<=480px){.qr-intel-panel{grid-template-columns:repeat(2,1fr)}.scan-meter-breakdown{grid-template-columns:minmax(0,1fr);overflow:hidden}}.batch-intro{background:#22d3ee0d;border:1px solid #22d3ee26;border-radius:10px;margin-bottom:16px;padding:16px}.batch-intro__title{color:var(--primary-cyan);letter-spacing:.5px;margin:0 0 8px;font-size:14px;font-weight:600}.batch-intro__desc{color:var(--calc-text-dim);margin:0;font-size:13px;line-height:1.5}.batch-intro__desc strong{color:var(--calc-text-primary)}.batch-steps{gap:6px;margin-bottom:16px;display:flex}.batch-step{text-align:center;background:#ffffff08;border:1px solid #ffffff0f;border-radius:8px;flex:1;padding:10px 6px}.batch-step__num{color:var(--primary-cyan);margin-bottom:2px;font-size:18px;font-weight:700}.batch-step__text{color:var(--calc-text-dim);font-size:11px}.batch-hint{margin-top:6px}.batch-link{color:var(--primary-cyan)}.batch-example-details{margin-bottom:14px}.batch-example-summary{color:var(--calc-text-dim);cursor:pointer;user-select:none;padding:6px 0;font-size:12px}.batch-example-code{color:var(--calc-text-dim);background:#0000004d;border-radius:8px;margin-top:6px;padding:12px;font-family:Courier New,monospace;font-size:12px;line-height:1.7}.batch-example-comment{color:var(--calc-text-muted);margin-bottom:4px}.batch-example-spacer{margin-top:8px}.batch-example-note{color:var(--primary-cyan);margin-top:8px;font-family:Inter,sans-serif}.batch-generate-group{align-items:flex-end;display:flex}.batch-generate-btn{width:100%}.batch-progress-track{margin-top:8px}.batch-status{margin-top:4px}.batch-footer-hint{color:var(--calc-text-muted);margin-top:12px}.reset-btn{color:#ef4444}.faq-list{flex-direction:column;display:flex}.faq-item__question{cursor:pointer;color:var(--calc-text-primary);user-select:none;justify-content:space-between;align-items:center;padding:14px 4px;font-size:.9rem;font-weight:600;list-style:none;transition:color .2s;display:flex}.faq-item__question::-webkit-details-marker{display:none}.faq-item__question:after{content:"+";color:var(--calc-text-dim);flex-shrink:0;margin-left:16px;font-family:JetBrains Mono,monospace;font-size:1.1rem;transition:color .2s}.faq-item-enhanced[open] .faq-item__question:after{content:"−";color:var(--primary-cyan)}.faq-item__question:hover{color:var(--primary-cyan)}.faq-item__answer{color:var(--calc-text-muted);padding:0 4px 14px;font-size:.85rem;line-height:1.75}[data-theme=light]{--bg-dark:#e8edf5;--card-bg:#fff;--border-color:#0000001f;--primary-cyan:#0891b2;--primary-purple:#7c3aed;--glass-border:#0000001f;--glass-bg:#00000008;--text-main:#0f172a;--text-dim:#64748b;--text-muted:#475569}[data-theme=light] body{color:#0f172a;background-color:#e8edf5;background-image:none}[data-theme=light] .glass-navbar{backdrop-filter:blur(12px);background:#fffffff2;border-bottom-color:#00000014}[data-theme=light] .dashboard-container{background:#fff;border-color:#0000001f;box-shadow:0 2px 12px #00000017}[data-theme=light] .settings-column{border-right-color:#0000001a}[data-theme=light] .settings-column::-webkit-scrollbar-thumb{background:#00000026}[data-theme=light] .preview-column{background:#f0f4f9}[data-theme=light] .card{background:0 0}[data-theme=light] .page-title{background:linear-gradient(90deg,#0f172a,#475569);-webkit-background-clip:text;background-clip:text}[data-theme=light] .section-desc{color:#475569}[data-theme=light] input,[data-theme=light] select{color-scheme:light}[data-theme=light] .glass-select,[data-theme=light] .glass-textarea{color:#0f172a;background:#edf2f9;border-color:#00000026}[data-theme=light] .glass-select:focus,[data-theme=light] .glass-textarea:focus{background:#0891b20f;border-color:#0891b2}[data-theme=light] .glass-select option{color:#0f172a;background-color:#fff}[data-theme=light] .input-group label{color:#334155}[data-theme=light] .input-hint,[data-theme=light] .input-icon{color:#64748b}[data-theme=light] input::placeholder{color:#0006}[data-theme=light] .glass-checkbox{background:#edf2f9;border-color:#0003}[data-theme=light] .glass-checkbox:checked{background:#0891b2;border-color:#0891b2}[data-theme=light] .checkbox-label{color:#0f172a}[data-theme=light] .tab-nav{border-bottom-color:#0000001a}[data-theme=light] .tab-btn{color:#64748b}[data-theme=light] .tab-btn:hover{color:#0f172a;background:#0000000a}[data-theme=light] .tab-btn.active{color:#0891b2;background:#0891b20f;border-bottom-color:#0891b2}[data-theme=light] .color-picker-wrapper{color:#475569;background:#edf2f9;border-color:#0000001f}[data-theme=light] .pattern-btn,[data-theme=light] .eye-btn,[data-theme=light] .inner-eye-btn{color:#475569;background:#edf2f9;border-color:#0000001a}[data-theme=light] .pattern-btn:hover,[data-theme=light] .eye-btn:hover,[data-theme=light] .inner-eye-btn:hover{background:#e2e8f0}[data-theme=light] .pattern-btn.active,[data-theme=light] .eye-btn.active,[data-theme=light] .inner-eye-btn.active{color:#0891b2;background:#0891b226;border-color:#0891b2}[data-theme=light] .pattern-btn:not(.active) .shape-icon,[data-theme=light] .eye-btn:not(.active) .shape-icon,[data-theme=light] .inner-eye-btn:not(.active) .shape-icon{background:#475569}[data-theme=light] .preset-btn{border-color:#00000026}[data-theme=light] .preset-btn:hover{box-shadow:0 2px 8px #0000001f}[data-theme=light] .format-btn{color:#475569;background:#edf2f9;border-color:#0000001a}[data-theme=light] .format-btn.active{color:#fff;background:#0891b2;border-color:#0891b2}[data-theme=light] .format-btn:disabled{opacity:.4}[data-theme=light] .download-btn{color:#fff;background:linear-gradient(135deg,#0891b2,#0891b2)}[data-theme=light] .download-btn:hover{background:linear-gradient(135deg,#0c6577,#0891b2)}[data-theme=light] .secondary-btn{color:#334155;background:#edf2f9;border-color:#0000001f}[data-theme=light] .secondary-btn:hover{background:#e2e8f0}[data-theme=light] .reset-btn{color:#dc2626}[data-theme=light] .bg-prev-btn{color:#475569;background:#edf2f9;border-color:#0000001a}[data-theme=light] .bg-prev-btn.active{color:#fff;background:#0891b2;border-color:#0891b2}[data-theme=light] 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.icon-btn:hover{background:#fff1f2;border-color:#ef44444d}[data-theme=light] .history-panel{background:#fff;border-color:#00000014}[data-theme=light] .history-header{border-bottom-color:#0000000f}[data-theme=light] .history-toggle-btn,[data-theme=light] .history-title{color:#0f172a}[data-theme=light] .history-chevron,[data-theme=light] .history-clear-btn{color:#64748b}[data-theme=light] .history-clear-btn:hover{color:#dc2626}[data-theme=light] .history-item{background:#f0f4f9;border-color:#00000014}[data-theme=light] .history-item:hover{background:#edf2f9;border-color:#0891b233}[data-theme=light] .history-empty{color:#64748b}[data-theme=light] .history-type-badge{color:#0891b2;background:#0891b21a}[data-theme=light] .history-delete-btn{color:#94a3b8}[data-theme=light] .history-delete-btn:hover{color:#dc2626}[data-theme=light] .batch-intro{background:#0891b20f;border-color:#0891b233}[data-theme=light] .batch-intro__title{color:#0891b2}[data-theme=light] .batch-intro__desc{color:#475569}[data-theme=light] .batch-intro__desc strong{color:#0f172a}[data-theme=light] .batch-step{background:#edf2f9;border-color:#00000014}[data-theme=light] .batch-step__num{color:#0891b2}[data-theme=light] .batch-step__text{color:#475569}[data-theme=light] .batch-link{color:#0891b2}[data-theme=light] .batch-example-summary{color:#475569}[data-theme=light] .batch-example-code{color:#475569;background:#f0f4f9;border:1px solid #00000014}[data-theme=light] .batch-example-comment{color:#94a3b8}[data-theme=light] .batch-example-note{color:#0891b2}[data-theme=light] .content-divider{background:#00000014}[data-theme=light] .gradient-grid{border-top-color:#00000014}[data-theme=light] .glass-range{accent-color:#0891b2}[data-theme=light] .result-summary{background:#fff}[data-theme=light] .qr-scan-overlay{background:#0891b226}[data-theme=light] .card-header-cyan{color:#0891b2}[data-theme=light] .card-header-purple{color:#7c3aed}[data-theme=light] .kbd-hint kbd{color:#334155;background:#e2e8f0;border-color:#00000026}[data-theme=light] .calc-breadcrumb{color:#475569;background:#00000008}[data-theme=light] .calc-breadcrumb a{color:#475569}[data-theme=light] .calc-breadcrumb a:hover{color:#0891b2}[data-theme=light] table{border-color:#0000001f}[data-theme=light] th{color:#334155;background:#f0f4f9;border-color:#0000001a}[data-theme=light] td{color:#0f172a;border-color:#0000000f}[data-theme=light] tr:hover td{background:#f8fafc}[data-theme=light] .faq-list{gap:8px}[data-theme=light] .faq-item-enhanced{background:#fff;border:1px solid #0000001a;border-radius:10px;transition:box-shadow .2s,border-color .2s;overflow:hidden;box-shadow:0 1px 4px #0000000f}[data-theme=light] .faq-item-enhanced:hover{border-color:#0891b259;box-shadow:0 2px 10px #0891b214}[data-theme=light] .faq-item-enhanced[open]{border-color:#0891b266 #0891b266 #0891b266 #0891b2;border-left-style:solid;border-left-width:3px;box-shadow:0 2px 12px #0891b21a}[data-theme=light] .faq-item__question{color:#0f172a;padding:14px 16px}[data-theme=light] .faq-item__question:after{color:#64748b}[data-theme=light] .faq-item-enhanced[open] .faq-item__question:after,[data-theme=light] .faq-item__question:hover{color:#0891b2}[data-theme=light] .faq-item__answer{color:#475569;border-top:1px solid #0000000f;padding:12px 16px 16px}[data-theme=light] .calc-section__title{color:#0f172a}[data-theme=light] .calc-section__icon{opacity:.85}[data-theme=light] .glossary-chip{background:#f0f4f9;border-color:#00000014}[data-theme=light] .glossary-chip__term{color:#0f172a}[data-theme=light] .glossary-chip__def{color:#475569}[data-theme=light] .example-card-enhanced{background:#fff;border-color:#0000001a;box-shadow:0 1px 4px #0000000f}[data-theme=light] .example-card__result-banner{background:#f0f4f9}[data-theme=light] .example-card__result-label{color:#64748b}[data-theme=light] .example-card__result-value{color:#0f172a}[data-theme=light] 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