.qc-shell{display:flex;flex-direction:column;min-height:100dvh;font-size:16px}.qc-shell .wrap{width:100%;max-width:var(--qc-max,1240px);margin:0 auto;padding:0 var(--gutter)}.qc-shell .app-nav{background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(140%) blur(14px);-webkit-backdrop-filter:saturate(140%) blur(14px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}.qc-shell .app-nav-row{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}.qc-shell .brand{display:inline-flex;align-items:baseline;gap:0;font-family:var(--font-display);font-weight:800;font-size:19px;letter-spacing:-.025em;color:var(--g-1);flex-shrink:0}.qc-shell .brand:after{content:"";width:6px;height:6px;border-radius:50%;background:var(--m-3);margin-left:4px;align-self:center;box-shadow:0 0 0 3px var(--m-6)}.qc-shell .save-state{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-3);letter-spacing:.02em;flex-shrink:0}.qc-shell .save-state .pulse{width:6px;height:6px;border-radius:50%;background:var(--g-3);animation:qcPulseDot 2.5s var(--ease) infinite}@keyframes qcPulseDot{0%,to{opacity:1}50%{opacity:.4}}.qc-shell>main{flex:1}.qc-shell .app-foot{border-top:1px solid var(--line);padding:24px 0;background:var(--bg)}.qc-shell .app-foot-row{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--ink-3);letter-spacing:.01em}.qc-shell .app-foot-row .disclaimer{max-width:62ch;line-height:1.55}.qc-shell .qc-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:16px 26px;border-radius:999px;font-family:var(--font-sans);font-weight:600;font-size:15.5px;border:1px solid transparent;transition:transform .15s var(--ease),background .18s var(--ease),border-color .18s var(--ease),opacity .15s var(--ease);white-space:nowrap;text-decoration:none}.qc-shell .qc-btn svg{width:16px;height:16px;transition:transform .25s var(--ease)}.qc-shell .qc-btn-primary{background:var(--g-1);color:var(--bg-soft);border-color:var(--g-1)}.qc-shell .qc-btn-primary:hover:not(:disabled){background:var(--g-2);transform:translateY(-1px)}.qc-shell .qc-btn-primary:hover:not(:disabled) svg{transform:translateX(3px)}.qc-shell .qc-btn-primary:disabled{background:var(--bg-stone);border-color:var(--bg-stone);color:var(--ink-3);cursor:not-allowed;transform:none}.qc-shell .qc-btn-ghost{background:transparent;color:var(--ink-2);border-color:transparent;padding:16px 20px}.qc-shell .qc-btn-ghost:hover{color:var(--g-1)}.qc-shell .qc-btn-outline{background:transparent;color:var(--ink-2);border-color:var(--line-2);padding:13px 22px;font-size:14.5px;min-height:46px}.qc-shell .qc-btn-outline:hover:not(:disabled){border-color:var(--g-3);color:var(--ink);transform:translateY(-1px)}.qc-shell .qc-btn-outline:focus-visible{outline:none;border-color:var(--g-3);box-shadow:0 0 0 3px var(--g-6)}.qc-shell .qc-btn-outline svg{width:14px;height:14px;opacity:.85}.qc-shell .tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" on;letter-spacing:0}@keyframes qcSpin{0%{transform:rotate(0)}to{transform:rotate(1turn)}}.qc-shell .qc-spin{animation:qcSpin 1s linear infinite}