:root{--qbi-accent:#22d3ee;--qbi-accent-soft:#22d3ee1f;--qbi-sstb:#fb7185;--qbi-good:#34d399;--qbi-nest:#ffffff08;--qbi-nest-border:#ffffff14}[data-theme=light]{--qbi-accent:#0891b2;--qbi-accent-soft:#0891b21a;--qbi-sstb:#e11d48;--qbi-good:#047857;--qbi-nest:#f0f4f9;--qbi-nest-border:#0000001f}.main-container{max-width:1400px;margin:0 auto;padding:28px 20px 40px}.page-hero{text-align:center;max-width:820px;margin:26px auto 8px;padding:0 20px}.page-title{font-family:var(--calc-font-headline,"Plus Jakarta Sans", sans-serif);letter-spacing:-.02em;color:var(--calc-text-primary,#f8fafc);margin:0 0 10px;font-size:clamp(1.7rem,4vw,2.5rem);font-weight:800}.page-subtitle{color:var(--calc-text-muted,#a8b8cc);margin:0;font-size:1.02rem;line-height:1.6}.badge-year{font-family:var(--calc-font-mono,"JetBrains Mono", monospace);letter-spacing:.02em;background:var(--qbi-accent-soft);color:var(--qbi-accent);border:1px solid var(--qbi-accent-soft);border-radius:999px;padding:5px 12px;font-size:.72rem;font-weight:600;display:inline-block}.qbi-grid{grid-template-columns:minmax(0,380px) minmax(0,1fr);align-items:start;gap:22px;display:grid}@media (width<=1024px){.qbi-grid{grid-template-columns:1fr}}.qbi-panel,.qbi-results,.qbi-section-card{background:var(--calc-bg-card,#161d2b);border:1px solid var(--calc-border-default,#ffffff17);border-radius:var(--calc-radius-lg,16px);box-shadow:var(--calc-shadow-card,0 4px 20px #00000040);padding:22px}.qbi-panel__title,.qbi-results__title,.qbi-section-card__title{font-family:var(--calc-font-headline,"Plus Jakarta Sans", sans-serif);color:var(--calc-text-primary,#f8fafc);margin:0 0 16px;font-size:1.12rem;font-weight:700}.qbi-panel__subtitle{color:var(--calc-text-primary,#f8fafc);border-top:1px solid var(--calc-border-subtle,#ffffff0f);margin:22px 0 12px;padding-top:16px;font-size:.9rem;font-weight:700}.qbi-panel__hint{color:var(--calc-text-dim,#8896aa);font-size:.78rem;font-weight:500}.form-group{margin-bottom:16px}.form-group label{color:var(--calc-text-secondary,#cbd5e1);margin-bottom:6px;font-size:.86rem;font-weight:600;display:block}.qbi-panel input[type=text],.qbi-panel select{box-sizing:border-box;width:100%;font-size:.98rem;font-family:var(--calc-font-mono,"JetBrains Mono", monospace);color:var(--calc-text-primary,#f8fafc);background:var(--calc-bg-input,#0e1420);border:1px solid var(--calc-border-strong,#ffffff24);border-radius:var(--calc-radius-md,12px);padding:11px 13px;transition:border-color .18s,box-shadow .18s}.qbi-panel select{font-family:var(--calc-font-headline,"Plus Jakarta Sans", sans-serif);cursor:pointer}.qbi-panel input[type=text]:focus,.qbi-panel select:focus{border-color:var(--qbi-accent);box-shadow:0 0 0 3px var(--qbi-accent-soft);outline:none}.input-hint{color:var(--calc-text-dim,#8896aa);margin-top:5px;font-size:.76rem;line-height:1.45;display:block}.form-group--switch{background:var(--qbi-nest);border:1px solid var(--qbi-nest-border);border-radius:var(--calc-radius-md,12px);padding:14px}.switch{cursor:pointer;align-items:center;gap:12px;display:flex}.switch input{opacity:0;width:1px;height:1px;position:absolute}.switch__track{background:var(--calc-border-strong,#fff3);border-radius:999px;flex:none;width:44px;height:24px;transition:background .2s;position:relative}.switch__track:after{content:"";background:#fff;border-radius:50%;width:18px;height:18px;transition:transform .2s;position:absolute;top:3px;left:3px;box-shadow:0 1px 3px #0006}.switch input:checked+.switch__track{background:var(--qbi-accent)}.switch input:checked+.switch__track:after{transform:translate(20px)}.switch input:focus-visible+.switch__track{outline:2px solid var(--qbi-accent);outline-offset:2px}.switch__label{color:var(--calc-text-primary,#f8fafc);font-size:.9rem;font-weight:600}.qbi-results__head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.qbi-results__head .qbi-results__title{margin:0}.action-bar{flex-wrap:wrap;gap:7px;display:flex}.action-btn{font-family:var(--calc-font-headline,"Plus Jakarta Sans", sans-serif);color:var(--calc-text-secondary,#cbd5e1);background:var(--calc-bg-input,#0e1420);border:1px solid var(--calc-border-default,#ffffff1a);cursor:pointer;border-radius:999px;padding:7px 13px;font-size:.8rem;font-weight:600;transition:border-color .18s,color .18s,background .18s}.action-btn:hover{color:var(--qbi-accent);border-color:var(--qbi-accent);background:var(--qbi-accent-soft)}.action-btn--reset{color:var(--calc-text-dim,#8896aa)}.qbi-hero{text-align:center;border-radius:var(--calc-radius-md,12px);background:var(--qbi-accent-soft);border:1px solid var(--qbi-accent-soft);padding:26px 18px}.qbi-hero__label{font-family:var(--calc-font-mono,monospace);letter-spacing:.08em;text-transform:uppercase;color:var(--calc-text-muted,#a8b8cc);margin-bottom:6px;font-size:.74rem}.qbi-hero__value{font-family:var(--calc-font-mono,monospace);color:var(--qbi-accent);font-size:clamp(2.1rem,6vw,3rem);font-weight:800;line-height:1.05}.qbi-hero__sub{color:var(--calc-text-muted,#a8b8cc);margin-top:8px;font-size:.86rem}.qbi-hero[data-result-state=idle] .qbi-hero__value,.qbi-hero[data-result-state=partial] .qbi-hero__value{color:var(--calc-text-dim,#8896aa)}.qbi-interpretation{color:var(--calc-text-secondary,#cbd5e1);background:var(--qbi-nest);border-left:3px solid var(--qbi-accent);border-radius:0 var(--calc-radius-md,12px) var(--calc-radius-md,12px) 0;margin:16px 0 0;padding:14px 16px;font-size:.9rem;line-height:1.6}.qbi-interpretation:empty{display:none}.stat-grid{grid-template-columns:repeat(2,1fr);gap:10px;margin-top:16px;display:grid}@media (width>=620px){.stat-grid{grid-template-columns:repeat(4,1fr)}}.stat-card{background:var(--qbi-nest);border:1px solid var(--qbi-nest-border);border-radius:var(--calc-radius-md,12px);padding:12px 13px}.stat-label{color:var(--calc-text-dim,#8896aa);margin-bottom:5px;font-size:.72rem;line-height:1.3}.stat-value{font-family:var(--calc-font-mono,monospace);color:var(--calc-text-primary,#f8fafc);font-size:1.06rem;font-weight:700}.stat-value--text{font-family:var(--calc-font-headline,"Plus Jakarta Sans", sans-serif);color:var(--qbi-accent);font-size:.86rem;line-height:1.3}.qbi-compare{border-top:1px solid var(--calc-border-subtle,#ffffff0f);margin-top:18px;padding-top:16px}.qbi-compare__title{text-transform:uppercase;letter-spacing:.05em;color:var(--calc-text-muted,#a8b8cc);margin:0 0 12px;font-size:.82rem;font-weight:700}.qbi-compare__row{grid-template-columns:1fr 1fr auto;align-items:center;gap:10px;margin-bottom:10px;display:grid}.cmp-cell{background:var(--qbi-nest);border:1px solid var(--qbi-nest-border);border-radius:var(--calc-radius-md,12px);min-width:0;padding:10px 12px}.cmp-cell--alt{border-style:dashed}.cmp-label{color:var(--calc-text-dim,#8896aa);margin-bottom:3px;font-size:.72rem;display:block}.cmp-val{font-family:var(--calc-font-mono,monospace);color:var(--calc-text-primary,#f8fafc);font-size:1.02rem;font-weight:700;display:block}.cmp-delta{font-family:var(--calc-font-mono,monospace);color:var(--qbi-good);white-space:nowrap;text-align:right;font-size:.82rem;font-weight:600}.qbi-compare__note{color:var(--calc-text-dim,#8896aa);margin:6px 0 0;font-size:.78rem;line-height:1.5}@media (width<=520px){.qbi-compare__row{grid-template-columns:1fr 1fr}.cmp-delta{text-align:left;grid-column:1/-1}}.qbi-section-card__lead{color:var(--calc-text-secondary,#cbd5e1);max-width:72ch;margin:0 0 18px;font-size:.95rem;line-height:1.65}.qbi-section-card__note{color:var(--calc-text-dim,#8896aa);margin:14px 0 0;font-size:.8rem;line-height:1.55}.qbi-chart-caption{color:var(--calc-text-muted,#a8b8cc);margin:12px 0 0;font-size:.86rem;line-height:1.55}.qbi-band-legend{color:var(--calc-text-muted,#a8b8cc);flex-wrap:wrap;gap:16px;margin-top:12px;font-size:.8rem;display:flex}.qbi-band-legend__item{align-items:center;gap:7px;display:inline-flex}.dot{border-radius:50%;width:12px;height:12px;display:inline-block}.dot--nonsstb{background:var(--qbi-accent)}.dot--sstb{background:var(--qbi-sstb)}.dot--marker{background:var(--qbi-good)}.solver-callout{background:var(--qbi-accent-soft);border:1px solid var(--qbi-accent-soft);border-radius:var(--calc-radius-md,12px);margin-bottom:20px;padding:18px}.solver-callout__label{font-family:var(--calc-font-mono,monospace);letter-spacing:.06em;text-transform:uppercase;color:var(--calc-text-muted,#a8b8cc);font-size:.72rem}.solver-callout__value{font-family:var(--calc-font-mono,monospace);color:var(--qbi-accent);margin:4px 0;font-size:2rem;font-weight:800}.solver-callout__sub{color:var(--calc-text-secondary,#cbd5e1);font-size:.85rem;line-height:1.55}.solver-slider{margin:18px 0}.solver-slider label{color:var(--calc-text-secondary,#cbd5e1);margin-bottom:10px;font-size:.86rem;font-weight:600;display:block}.solver-slider input[type=range]{width:100%;accent-color:var(--qbi-accent)}.solver-readout{font-family:var(--calc-font-mono,monospace);color:var(--calc-text-primary,#f8fafc);background:var(--qbi-nest);border:1px solid var(--qbi-nest-border);border-radius:var(--calc-radius-md,12px);margin-top:10px;padding:10px 12px;font-size:.92rem;font-weight:600}.solver-optimal{color:var(--calc-text-secondary,#cbd5e1);background:var(--qbi-nest);border-left:3px solid var(--qbi-good);border-radius:0 var(--calc-radius-md,12px) var(--calc-radius-md,12px) 0;padding:14px 16px;font-size:.9rem;line-height:1.6}[data-theme=light] .qbi-panel,[data-theme=light] .qbi-results,[data-theme=light] .qbi-section-card{background:#fff;border-color:#0000001f;box-shadow:0 2px 12px #00000014}[data-theme=light] .qbi-panel input[type=text],[data-theme=light] .qbi-panel select{color:#0f172a;background:#f0f4f9;border-color:#00000026}[data-theme=light] .action-btn{color:#334155;background:#f0f4f9;border-color:#0000001f}[data-theme=light] .switch__track{background:#cbd5e1}[data-theme=light] .badge-year{background:#0891b21a;border-color:#0891b240}[data-theme=light] .cmp-delta{color:#047857}