.support-card{border:1px solid var(--border);background:var(--surface-raised);width:min(520px,100%);box-shadow:var(--shadow-panel);text-align:center;transition:transform .34s var(--ease-out), box-shadow .34s var(--ease-out), border-color .34s var(--ease-out);border-radius:3px 22px;margin:clamp(26px,3.4vw,40px) auto 0;padding:clamp(30px,3vw,40px) clamp(20px,3vw,32px) clamp(22px,3vw,32px);position:relative;overflow:hidden}.support-card:hover{border-color:color-mix(in srgb, var(--accent) 30%, var(--border));box-shadow:var(--shadow-float);transform:translateY(-3px)}.support-card:before{content:"";z-index:0;pointer-events:none;opacity:0;mix-blend-mode:soft-light;background:linear-gradient(100deg,#0000 20%,#ffffff47 45%,#ffffff57 50%,#ffffff47 55%,#0000 80%);transition:transform 1.9s cubic-bezier(.23,.72,.32,.98),opacity .7s;position:absolute;inset:-1px;transform:translate(-60%)}.support-card:hover:before{opacity:1;transform:translate(60%)}.support-card>.bf-spectrum{transform-origin:0;height:5px;animation:bfStripDraw .76s var(--ease-out) .18s both;display:flex;position:absolute;top:0;left:0;right:0;overflow:hidden}.support-card>.bf-spectrum>span{flex:1}.support-card>.bf-spectrum:after{content:"";background:linear-gradient(90deg,#0000 30%,#ffffff38 44%,#fff6 50%,#ffffff38 56%,#0000 70%);animation:8.2s cubic-bezier(.45,0,.25,1) 2.2s infinite bfStripGlint;position:absolute;inset:0;transform:translate(-100%)}@keyframes bfStripDraw{0%{transform:scaleX(0)}to{transform:scaleX(1)}}@keyframes bfStripGlint{0%{transform:translate(-100%)}34%,to{transform:translate(100%)}}.bf-lede{z-index:1;font-family:var(--font-serif);color:var(--text);margin:0 0 2px;font-size:clamp(1.02rem,1.4vw,1.14rem);font-style:italic;line-height:1.4;position:relative}.bf-lede strong{color:var(--accent);font-style:normal}.bf-support{z-index:1;flex-direction:column;align-items:center;gap:18px;width:100%;display:flex;position:relative}.bf-toggle{background:var(--surface-sunken);border:1px solid var(--border);border-radius:var(--radius-pill);padding:4px;display:inline-flex;position:relative}.bf-toggle-glow{z-index:0;border-radius:var(--radius-pill);background:var(--accent);width:0;box-shadow:0 7px 18px color-mix(in srgb, var(--accent) 36%, transparent);transition:transform .34s cubic-bezier(.34,1.36,.64,1),width .34s cubic-bezier(.34,1.36,.64,1);position:absolute;top:4px;bottom:4px;left:0}.bf-seg{z-index:1;border-radius:var(--radius-pill);font-family:var(--font-sans);letter-spacing:.01em;color:var(--text-soft);cursor:pointer;white-space:nowrap;background:0 0;border:0;padding:9px 16px;font-size:.8rem;font-weight:800;transition:color .22s;position:relative}.bf-seg:hover{color:var(--text)}.bf-seg.is-active{color:var(--text-inverse)}.bf-stage{perspective:1500px;width:100%}.bf-stage-inner{transform-origin:top;transition:transform .22s cubic-bezier(.4,0,.2,1)}.bf-support.is-flipping .bf-stage-inner{transform:rotateX(-90deg)}.bf-panel{display:none}.bf-panel.is-active{flex-direction:column;align-items:center;display:flex}.bf-form{gap:10px;width:100%;max-width:430px;display:flex}.bf-form input{min-width:0;min-height:46px;font:inherit;font-family:var(--font-sans);color:var(--text);background:var(--surface-raised);border:1px solid var(--border-strong);border-radius:var(--radius-pill);outline:none;flex:1;padding:0 17px;font-size:.95rem;transition:border-color .17s,box-shadow .17s;box-shadow:inset 0 1px 2px #1021160f}.bf-form input::placeholder{color:var(--text-muted);opacity:1}.bf-form input:focus{border-color:var(--accent);box-shadow:inset 0 1px 2px #1021160f, 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent)}.bf-form button{min-height:46px;font-family:var(--font-sans);color:var(--text-inverse);background:var(--accent);border:1px solid var(--accent);border-radius:var(--radius-pill);box-shadow:0 10px 24px color-mix(in srgb, var(--accent) 24%, transparent), inset 0 1px 0 #ffffff1f;cursor:pointer;white-space:nowrap;flex:none;justify-content:center;align-items:center;padding:0 22px;font-size:.9rem;font-weight:800;transition:transform .16s,filter .16s;display:inline-flex}.bf-form button:hover{filter:brightness(1.08);transform:translateY(-1px)}.bf-form.is-busy button{opacity:.6;cursor:progress}.bf-cap{font-family:var(--font-sans);color:var(--text-muted);text-align:center;max-width:380px;margin:12px 0 0;font-size:.78rem;line-height:1.5}.bf-cap.success,.bf-cap.error{color:var(--accent);font-weight:700}.bf-support .bf-oneoff{justify-items:center;gap:9px;width:100%;max-width:430px;margin:0;display:grid}.bf-support .bf-oneoff-row,.bf-support .oneoff-amounts{flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;display:flex}.bf-support .oneoff-chip{min-height:40px;font:inherit;font-family:var(--font-sans);color:var(--ink);background:var(--paper);border:1px solid var(--rule-strong);border-radius:var(--radius-pill);cursor:pointer;padding:0 16px;font-weight:800;transition:color .15s,background .15s,border-color .15s}.bf-support .oneoff-chip:hover{border-color:var(--accent)}.bf-support .oneoff-chip.is-active{color:var(--paper-soft);background:var(--ink);border-color:var(--ink)}.bf-support .oneoff-custom{background:var(--paper);border:1px solid var(--rule-strong);border-radius:var(--radius-pill);align-items:center;gap:1px;padding-left:12px;display:inline-flex}.bf-support .oneoff-custom:focus-within{border-color:var(--accent)}.bf-support .oneoff-cur{color:var(--muted);font-weight:700}.bf-support .oneoff-custom input{width:74px;min-height:38px;font:inherit;font-family:var(--font-sans);color:var(--ink);-moz-appearance:textfield;appearance:textfield;background:0 0;border:0;outline:none;padding:0 12px 0 3px;font-weight:700}.bf-support .oneoff-custom input::placeholder{color:var(--muted);font-weight:600}.bf-support .oneoff-custom input::-webkit-outer-spin-button,.bf-support .oneoff-custom input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.bf-support .oneoff-go{min-height:44px;font:inherit;font-family:var(--font-sans);color:var(--text-inverse);background:var(--accent);border:1px solid var(--accent);border-radius:var(--radius-pill);cursor:pointer;padding:0 24px;font-weight:800;transition:transform .16s,filter .16s}.bf-support .oneoff-go:hover{filter:brightness(1.06);transform:translateY(-1px)}.bf-support .oneoff-go:disabled{opacity:.6;cursor:progress}@media (width<=560px){.bf-form{flex-direction:column;gap:12px}.bf-toggle{width:100%}.bf-seg{flex:1;padding-inline:8px}.bf-support .bf-oneoff-row{flex-direction:column;align-items:stretch}}@media (prefers-reduced-motion:reduce){.bf-toggle-glow,.bf-stage-inner,.support-card,.support-card:before{transition:none}.support-card>.bf-spectrum,.support-card>.bf-spectrum:after{animation:none}.support-card:before{display:none}.support-card:hover{transform:none}}