.bk{background:var(--app-bg);min-height:100dvh;color:var(--app-text);font-family:var(--app-font-body);flex-direction:column;font-size:18px;line-height:1.5;display:flex}.bk *,.bk :before,.bk :after{box-sizing:border-box}.bk-demo-strip{background:repeating-linear-gradient(45deg, var(--stc-black) 0 12px, var(--stc-dark-grey) 12px 24px);color:var(--stc-white);letter-spacing:.06em;text-transform:uppercase;justify-content:center;align-items:center;gap:10px;padding:10px 16px;font-size:15px;font-weight:700;display:flex}.bk-demo-strip svg{flex-shrink:0}.bk-center{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:16px;width:100%;max-width:720px;margin:0 auto;padding:32px 20px;display:flex}.bk-logo{width:180px;max-width:60%;height:auto;display:block}.bk-title{overflow-wrap:anywhere;margin:0;font-size:clamp(34px,6vw,52px);line-height:1.1}.bk-lede{color:var(--app-text-secondary);overflow-wrap:anywhere;max-width:46ch;margin:0;font-size:20px}.bk-actions{flex-direction:column;gap:12px;width:100%;max-width:360px;display:flex}.bk-form{text-align:start;flex-direction:column;gap:16px;width:100%;max-width:420px;display:flex}.bk-chips{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.bk-chip{min-height:var(--touch);border:1px solid var(--app-border);border-radius:var(--radius);background:var(--app-surface);color:var(--app-text);font-family:var(--app-font-body);cursor:pointer;justify-content:center;align-items:center;padding:10px 20px;font-size:17px;font-weight:700;display:inline-flex}.bk-chip[data-selected=true]{border-color:var(--app-text);background:var(--brand-color-fill-secondary)}.bk-chip:focus-visible,.bk-input:focus-visible{outline:2px solid var(--app-text);outline-offset:2px}.bk-ring{border:6px solid var(--app-border);background:var(--app-surface);width:120px;height:120px;font-family:var(--app-font-mono);color:var(--app-text);font-variant-numeric:tabular-nums;border-radius:50%;justify-content:center;align-items:center;font-size:44px;font-weight:700;display:flex}.bk-spinner{border:6px solid var(--app-border);border-top-color:var(--app-accent);border-radius:50%;width:88px;height:88px;animation:1s linear infinite bk-spin}@keyframes bk-spin{to{transform:rotate(360deg)}}.bk-session{flex-direction:column;flex:1;min-height:0;display:flex}.bk-topbar{flex-wrap:wrap;align-items:center;gap:8px;padding:12px 16px;display:flex}.bk-info-chip{border:1px solid var(--app-border);border-radius:var(--radius);background:var(--app-surface);font-variant-numeric:tabular-nums;align-items:center;gap:6px;min-height:40px;padding:6px 14px;font-size:15px;display:inline-flex}.bk-info-chip svg{flex-shrink:0}.bk-startover{margin-inline-start:auto}.bk-wizard{flex:1;min-height:0}.bk-input{width:100%;min-height:var(--touch);border:1px solid var(--app-border);border-radius:var(--radius);background:var(--app-surface);color:var(--app-text);font-family:var(--app-font-mono);padding:10px 16px;font-size:16px}