.main-container{max-width:1400px;margin:0 auto;padding:40px 20px}.page-header{margin-bottom:20px}.page-title{font-family:var(--calc-font-headline);color:var(--calc-text-primary);letter-spacing:-.02em;margin:0 0 8px;font-size:clamp(1.7rem,3.5vw,2.4rem);font-weight:800}.page-subtitle{color:var(--calc-text-dim);max-width:70ch;margin:0;font-size:1rem;line-height:1.6}.action-bar{flex-wrap:wrap;gap:10px;margin:18px 0 24px;display:flex}.action-btn{background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-md);color:var(--calc-text-primary);font-family:var(--calc-font-headline);cursor:pointer;align-items:center;gap:6px;padding:.55rem 1rem;font-size:.85rem;font-weight:600;transition:border-color .15s,background-color .15s;display:inline-flex}.action-btn:hover{border-color:var(--calc-indigo)}.action-btn--reset{margin-left:auto}.action-btn--reset:hover{border-color:var(--calc-rose)}.card{background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-lg);margin-bottom:1.25rem;padding:1.25rem 1.5rem}.card-title{font-family:var(--calc-font-headline);text-transform:uppercase;letter-spacing:.05em;color:var(--calc-text-faded);margin:0 0 1rem;font-size:.95rem}.input-row{flex-wrap:wrap;align-items:flex-end;gap:14px;margin-bottom:14px;display:flex}.form-group{flex-direction:column;flex:1;gap:.4rem;min-width:150px;max-width:260px;margin-bottom:0;display:flex}.form-group label{color:var(--calc-text-faded);font-size:.85rem}.form-group input,.glass-input{background:var(--calc-bg-input);border:1px solid var(--calc-border-strong);border-radius:var(--calc-radius-md);color:var(--calc-text-primary);font-family:var(--calc-font-mono);width:100%;padding:.6rem .8rem;font-size:1rem;transition:border-color .15s}.form-group input:focus,.glass-input:focus{border-color:var(--calc-indigo);outline:none}.field-hint{color:var(--calc-text-dim);margin:0;font-size:.85rem;line-height:1.6}.tab-bar{border-bottom:1px solid var(--calc-border-default);flex-wrap:wrap;gap:6px;margin:20px 0;display:flex}.tab-btn{color:var(--calc-text-dim);font-family:var(--calc-font-headline);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;padding:.7rem 1rem;font-size:.9rem;font-weight:600;transition:color .15s,border-color .15s}.tab-btn:hover{color:var(--calc-text-primary)}.tab-btn.active{color:var(--calc-indigo);border-bottom-color:var(--calc-indigo)}.tab-content[hidden]{display:none}.hero-result{margin-bottom:16px}.hero-label{font-family:var(--calc-font-mono);text-transform:uppercase;letter-spacing:.06em;color:var(--calc-text-dim);margin-bottom:4px;font-size:.75rem}.hero-value{font-family:var(--calc-font-mono);color:var(--calc-indigo);font-size:clamp(1.8rem,5vw,2.5rem);font-weight:700;line-height:1.15}.hero-sub{color:var(--calc-text-faded);margin-top:4px;font-size:.9rem;line-height:1.5}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px;margin:16px 0;display:grid}.stat-cell{background:color-mix(in srgb, var(--calc-bg-input) 60%, transparent);border:1px solid var(--calc-border-subtle);border-radius:var(--calc-radius-md);text-align:center;padding:10px 12px}.stat-val{font-family:var(--calc-font-mono);color:var(--calc-text-primary);font-size:1.1rem;font-weight:700}.stat-label{color:var(--calc-text-dim);margin-top:2px;font-size:.72rem}.interp-panel{border:1px solid #818cf83d;border-left:3px solid var(--calc-indigo);border-radius:var(--calc-radius-md);background:#818cf814;margin-top:14px;padding:14px 16px}.interp-text{color:var(--calc-text-faded);margin:0;font-size:.88rem;line-height:1.65}[data-theme=light] .page-subtitle{color:#475569}[data-theme=light] .action-btn{color:#0f172a;background:#fff;border-color:#00000026}[data-theme=light] .action-btn:hover{border-color:#4f46e5}[data-theme=light] .action-btn--reset:hover{border-color:#e11d48}[data-theme=light] .card{background:#fff;border-color:#0000001f;box-shadow:0 1px 4px #0000000f}[data-theme=light] .form-group input,[data-theme=light] .glass-input{color:#0f172a;background:#f0f4f9;border-color:#00000026}[data-theme=light] .form-group input:focus,[data-theme=light] .glass-input:focus{border-color:#4f46e5}[data-theme=light] .form-group label,[data-theme=light] .field-hint{color:#64748b}[data-theme=light] .tab-bar{border-bottom-color:#0000001f}[data-theme=light] .tab-btn{color:#64748b}[data-theme=light] .tab-btn:hover{color:#0f172a}[data-theme=light] .tab-btn.active{color:#4f46e5;border-bottom-color:#4f46e5}[data-theme=light] .hero-label{color:#64748b}[data-theme=light] .hero-value{color:#4f46e5}[data-theme=light] .hero-sub{color:#475569}[data-theme=light] .stat-cell{background:#edf2f9;border-color:#0000001a}[data-theme=light] .stat-val{color:#0f172a}[data-theme=light] .stat-label{color:#64748b}[data-theme=light] .interp-panel{background:#eef2ff;border-color:#4f46e54d #4f46e54d #4f46e54d #4f46e5}[data-theme=light] .interp-text{color:#334155}.faq-list{flex-direction:column;display:flex}.faq-item{border-bottom:1px solid #ffffff0f}.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:"+";font-family:var(--calc-font-mono);color:var(--calc-text-dim);flex-shrink:0;margin-left:16px;font-size:1.1rem;transition:color .2s}.faq-item[open] .faq-item__question:after{content:"−";color:var(--calc-indigo)}.faq-item__question:hover{color:var(--calc-indigo)}.faq-item__answer{color:var(--calc-text-dim);padding:0 4px 14px;font-size:.85rem;line-height:1.75}[data-theme=light] .faq-list{gap:8px}[data-theme=light] .faq-item{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:hover{border-color:#4f46e559;box-shadow:0 2px 10px #4f46e514}[data-theme=light] .faq-item[open]{border-color:#4f46e566 #4f46e566 #4f46e566 #4f46e5;border-left-style:solid;border-left-width:3px;box-shadow:0 2px 12px #4f46e51a}[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[open] .faq-item__question:after,[data-theme=light] .faq-item__question:hover{color:#4f46e5}[data-theme=light] .faq-item__answer{color:#475569;border-top:1px solid #0000000f;padding:12px 16px 16px}@media print{.action-bar,.glass-navbar,.calc-back-to-top,.nav-toggle{display:none}}