.bt-mcm{border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-ink);border-radius:2px;margin-block:2.5rem}.bt-mcm-head{border-bottom:1px solid var(--color-border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;padding:.75rem 1rem;display:flex}.bt-mcm-label{font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;font-size:11px;font-weight:500}.bt-mcm-chip{border:1px solid var(--color-border);font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--color-ink-soft);border-radius:2px;padding:3px 7px;font-size:10px}.bt-mcm-body{grid-template-columns:minmax(0,1fr);display:grid}@media (width>=720px){.bt-mcm-body{grid-template-columns:minmax(0,5fr) minmax(0,6fr)}.bt-mcm-inputs{border-right:1px solid var(--color-border);border-bottom:0!important}}.bt-mcm-inputs{border:0;border-bottom:1px solid var(--color-border);background:#fcfbf9;gap:.9rem;margin:0;padding:1rem;display:grid}.bt-mcm-field{gap:.35rem;display:grid}.bt-mcm-flabel{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--color-ink-soft);font-size:11px}.bt-mcm-control{border:1px solid var(--color-border);background:var(--color-surface);min-height:44px;transition:border-color var(--duration-ui) var(--ease-respond);border-radius:2px;align-items:center;gap:.5rem;padding-inline:.75rem;display:flex}.bt-mcm-control:focus-within{border-color:var(--color-ink)}.bt-mcm-affix{font-family:var(--font-mono);color:var(--color-ink-soft);white-space:nowrap;font-size:14px}.bt-mcm-input{min-width:0;font-family:var(--font-mono);color:var(--color-ink);background:0 0;border:0;outline:none;flex:1;padding:.5rem 0;font-size:16px}.bt-mcm-hint{color:var(--color-ink-soft);font-size:13px;line-height:1.4}.bt-mcm-out{padding:.5rem 1.25rem 1rem}.bt-mcm-row{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:baseline;gap:1rem;padding:.85rem 0;display:flex}.bt-mcm-rname{color:var(--color-ink);margin:0;font-size:15px;font-weight:500;line-height:1.35}.bt-mcm-math{font-family:var(--font-mono);color:var(--color-ink-soft);margin:.2rem 0 0;font-size:11px;line-height:1.4}.bt-mcm-val{font-family:var(--font-mono);white-space:nowrap;color:var(--color-ink);margin:0;font-size:15px}.bt-mcm-total{border-top:1px solid var(--color-ink);justify-content:space-between;align-items:baseline;gap:1rem;margin-top:-1px;padding-top:1rem;display:flex}.bt-mcm-tlabel{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--color-ink);max-width:22ch;margin:0;font-size:11px}.bt-mcm-tval{font-family:var(--font-display);letter-spacing:-.02em;color:var(--color-ink);margin:0;font-size:40px;line-height:1}.bt-mcm-src{border-top:1px solid var(--color-border);font-family:var(--font-mono);color:var(--color-ink-soft);padding:.85rem 1rem;line-height:1.5;letter-spacing:.02em!important;text-transform:none!important;margin:0!important;font-size:11px!important}.bt-mcm input[type=number]::-webkit-inner-spin-button{opacity:.4}.bt-sms{color:var(--color-ink);margin-block:2rem 2.5rem}.bt-sms-name{gap:.35rem;max-width:26rem;margin-bottom:1.25rem;display:grid}.bt-sms-namelabel{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--color-ink-soft);font-size:11px}.bt-sms-nameinput{border:1px solid var(--color-border);background:var(--color-surface);min-height:44px;font-family:var(--font-body);color:var(--color-ink);transition:border-color var(--duration-ui) var(--ease-respond);border-radius:2px;outline:none;padding:.5rem .75rem;font-size:16px}.bt-sms-nameinput:focus{border-color:var(--color-ink)}.bt-sms-namehint{color:var(--color-ink-soft);font-size:13px}.bt-sms-grid{gap:.75rem;display:grid}.bt-sms-card{border:1px solid var(--color-border);background:var(--color-surface);border-radius:2px}.bt-sms-cardhead{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;gap:1rem;padding:.6rem .75rem .6rem 1rem;display:flex}.bt-sms .bt-sms-cardlabel{font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--color-ink);border:0;margin:0;padding:0;font-size:11px;font-weight:500;line-height:1.2}.bt-sms-copy{border:1px solid var(--color-ink);background:var(--color-surface);min-height:36px;font-family:var(--font-sans-tight);color:var(--color-ink);cursor:pointer;transition:background-color .14s var(--ease-respond), color .14s var(--ease-respond);border-radius:2px;padding:0 .75rem;font-size:13px;font-weight:600}.bt-sms-copy:hover,.bt-sms-copy.is-done{background:var(--color-ink);color:var(--color-cream)}.bt-sms .bt-sms-text{color:var(--color-ink);margin:0;padding:1rem;font-size:17px;line-height:1.55}.bt-sms-ph{background:var(--color-cream-deep);border-bottom:1px dashed var(--color-border-hover);padding:0 2px}.bt-sms .bt-sms-badge{border-top:1px solid var(--color-border);font-family:var(--font-mono);letter-spacing:.04em;color:var(--color-ink-soft);margin:0;padding:.5rem 1rem;font-size:11px}.bt-sms .bt-sms-badge.is-over{color:var(--color-red-deep)}@media (prefers-reduced-motion:reduce){.bt-sms-copy,.bt-sms-nameinput{transition:none}}.bt-fn{border:1px solid var(--color-ink);background:var(--color-surface);color:var(--color-ink);border-radius:2px;margin-block:2.5rem}.bt-fn-head{border-bottom:1px solid var(--color-ink);background:var(--color-ink);align-items:center;gap:.6rem;padding:.6rem 1rem;display:flex}.bt-fn-tag{font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--color-cream);font-size:11px;font-weight:500}.bt-fn-head:before{content:"";background:var(--color-brand-red);width:8px;height:8px}.bt-fn-body{padding:1.1rem 1.25rem 1.2rem}.bt-fn .bt-fn-title{font-family:var(--font-sans-tight);letter-spacing:-.01em;color:var(--color-ink);margin:0 0 .6rem;font-size:1.25rem;font-weight:600;line-height:1.25}.bt-fn-copy{color:var(--color-ink-soft);font-size:1.0625rem;line-height:1.6}.bt-fn-copy>*+*{margin-top:.8em}.bt-fn-copy strong{color:var(--color-ink);font-weight:600}.bt-fn .bt-fn-src{font-family:var(--font-mono);letter-spacing:.02em;color:var(--color-ink-soft);margin:.9rem 0 0;font-size:11px}.bt-fn-src a{color:var(--color-ink);text-underline-offset:.2em;text-decoration:underline}.bt-faq{border-top:1px solid var(--color-ink);margin-top:1.5rem}.bt-faq-item{border-bottom:1px solid var(--color-border)}.bt-faq-q{cursor:pointer;min-height:56px;font-family:var(--font-sans-tight);color:var(--color-ink);justify-content:space-between;align-items:center;gap:1rem;padding:.9rem 0;font-size:1.125rem;font-weight:600;line-height:1.3;list-style:none;display:flex}.bt-faq-q::-webkit-details-marker{display:none}.bt-faq-q:hover{color:var(--color-brand-red-hover)}.bt-faq-icon{flex:none;width:14px;height:14px;position:relative}.bt-faq-icon:before,.bt-faq-icon:after{content:"";width:14px;height:1px;transition:transform var(--duration-ui) var(--ease-respond);background:currentColor;position:absolute;top:6.5px;left:0}.bt-faq-icon:after{transform:rotate(90deg)}.bt-faq-item[open] .bt-faq-icon:after{transform:rotate(0)}.bt-faq .bt-faq-a{max-width:62ch;color:var(--color-ink-soft);margin:0;padding:0 0 1.1rem;font-size:1.0625rem;line-height:1.6}@media (prefers-reduced-motion:reduce){.bt-faq-icon:before,.bt-faq-icon:after{transition:none}}