.main-container{max-width:1280px;margin:0 auto;padding:40px 20px}.page-title{font-family:var(--calc-font-headline);color:var(--calc-text-primary);margin:0 0 .5rem;font-size:clamp(1.7rem,4vw,2.5rem)}.page-subtitle{color:var(--calc-text-faded);max-width:820px;margin:0 0 1.1rem;line-height:1.55}.sf-privacy{border-radius:var(--calc-radius-md);color:var(--calc-text-faded);background:#2dd4bf14;border:1px solid #2dd4bf4d;margin:0 0 1.5rem;padding:.7rem 1rem;font-size:.88rem;line-height:1.5}.sf-privacy strong{color:var(--calc-text-primary)}.sf-tabs{border-bottom:1px solid var(--calc-border-default);flex-wrap:wrap;gap:.4rem;margin-bottom:1.5rem;display:flex}.sf-tab-btn{color:var(--calc-text-faded);font-family:var(--calc-font-headline);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;padding:.7rem 1.1rem;font-size:.95rem;transition:color .15s,border-color .15s}.sf-tab-btn:hover{color:var(--calc-text-primary)}.sf-tab-btn.active{color:var(--calc-teal);border-bottom-color:var(--calc-teal)}.sf-tab-btn:focus-visible{outline:2px solid var(--calc-teal);outline-offset:2px}.sf-tab-panel{display:none}.sf-tab-panel.active{display:block}.sf-options{flex-wrap:wrap;gap:1rem;margin-bottom:1.1rem;display:flex}.sf-field{flex-direction:column;gap:.35rem;min-width:0;display:flex}.sf-field>span{text-transform:uppercase;letter-spacing:.04em;color:var(--calc-text-dim);font-size:.74rem;font-family:var(--calc-font-mono)}.sf-field select{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);min-width:11rem;padding:.55rem .7rem;font-size:.95rem}.sf-field select:focus{border-color:var(--calc-teal);outline:none}.sf-presets{flex-wrap:wrap;align-items:center;gap:.5rem;margin-bottom:1.1rem;display:flex}.sf-presets__label{color:var(--calc-text-dim);font-size:.85rem}.sf-preset{background:var(--calc-bg-input);border:1px solid var(--calc-border-default);color:var(--calc-text-faded);font-size:.82rem;font-family:var(--calc-font-mono);cursor:pointer;border-radius:999px;padding:.35rem .85rem;transition:border-color .15s,color .15s}.sf-preset:hover,.sf-preset:focus-visible{border-color:var(--calc-teal);color:var(--calc-teal);outline:none}.sf-panes{grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1.25rem;display:grid}.sf-pane{flex-direction:column;min-width:0;display:flex}.sf-pane__head{justify-content:space-between;align-items:center;min-height:1.6rem;margin-bottom:.4rem;display:flex}.sf-pane__label{text-transform:uppercase;letter-spacing:.04em;color:var(--calc-text-dim);font-size:.74rem;font-family:var(--calc-font-mono)}.sf-mini-btn{border:1px solid var(--calc-border-default);color:var(--calc-text-dim);border-radius:var(--calc-radius-md);cursor:pointer;background:0 0;padding:.2rem .6rem;font-size:.75rem;transition:border-color .15s,color .15s}.sf-mini-btn:hover{border-color:var(--calc-teal);color:var(--calc-teal)}.sf-textarea{box-sizing:border-box;resize:vertical;background:var(--calc-bg-input);border:1px solid var(--calc-border-strong);border-radius:var(--calc-radius-md);width:100%;min-height:340px;color:var(--calc-text-primary);font-family:var(--calc-font-mono);tab-size:2;white-space:pre;padding:.85rem 1rem;font-size:.9rem;line-height:1.55;overflow:auto}.sf-textarea:focus{border-color:var(--calc-teal);outline:none}.sf-textarea--out{background:var(--calc-bg-card);color:var(--calc-teal)}.sf-textarea::placeholder{color:var(--calc-text-dim)}.sf-status{font-size:.78rem;font-family:var(--calc-font-mono);color:var(--calc-text-dim)}.sf-status--ok{color:var(--calc-emerald)}.sf-status--warn{color:var(--calc-amber)}.sf-help{color:var(--calc-text-faded);margin:0 0 1.1rem;font-size:.9rem;line-height:1.55}.sf-help code,.sf-about code{font-family:var(--calc-font-mono);color:var(--calc-teal);font-size:.88em}.sf-about{max-width:760px;color:var(--calc-text-faded);line-height:1.65}.sf-about h2{font-family:var(--calc-font-headline);color:var(--calc-text-primary);margin:1.4rem 0 .5rem;font-size:1.15rem}.sf-about h2:first-child{margin-top:0}.sf-about p{margin:0 0 .8rem}.sf-about__list{margin:0 0 .8rem;padding-left:1.2rem}.sf-about__list li{margin-bottom:.4rem}.sf-about strong{color:var(--calc-text-primary)}.action-bar{margin:0 0 .5rem}.page-sections-outer{max-width:1280px;margin:0 auto;padding:0 1.5rem 3rem}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.faq-item__question{cursor:pointer;color:var(--calc-text-primary);font-weight:600}.faq-item__answer{color:var(--calc-text-faded);line-height:1.7}@media (width<=820px){.sf-panes{grid-template-columns:1fr}.sf-textarea{min-height:240px}.sf-field select{width:100%;min-width:0}.sf-field{flex:100%}}[data-theme=light] .sf-privacy{background:#ecfeff;border-color:#0f766e4d}[data-theme=light] .sf-tab-btn.active{color:#0f766e;border-bottom-color:#0f766e}[data-theme=light] .sf-tab-btn:focus-visible{outline-color:#0f766e}[data-theme=light] .sf-preset:hover,[data-theme=light] .sf-preset:focus-visible,[data-theme=light] .sf-mini-btn:hover{color:#0f766e;border-color:#0f766e}[data-theme=light] .sf-field select:focus,[data-theme=light] .sf-textarea:focus{border-color:#0f766e}[data-theme=light] .sf-textarea--out{color:#0f766e;background:#f0f4f9}[data-theme=light] .sf-help code,[data-theme=light] .sf-about code{color:#0f766e}[data-theme=light] .sf-status--ok{color:#047857}[data-theme=light] .sf-status--warn{color:#b45309}