@page{size:A4;margin:0}.sheet-preview{flex:1;min-height:0}.sheet-svg{display:block;width:100%;height:auto}.field-row{display:flex;flex-direction:column;gap:4px;margin-bottom:12px;font-size:13px;font-weight:700}.field-row select{border:1px solid var(--border-color);border-radius:var(--border-radius-sm);background:var(--bg-card);color:var(--text-primary);padding:6px 8px;font-size:14px}.tank-sign-in-hint{color:var(--text-secondary);margin-top:8px;font-size:12px}.aquarium-screen{position:fixed;z-index:1000;background:#04141f;inset:0}#tank-canvas{display:block;width:100%;height:100%}.tank-overlay{position:absolute;display:flex;pointer-events:none;flex-direction:column;justify-content:space-between;padding:20px;inset:0}.tank-overlay>*{pointer-events:auto}.tank-room-info{display:flex;border-radius:var(--border-radius-md);color:#f4fbff;background:#061c2c8c;border:1px solid #ffffff2e;align-self: flex-start;align-items: center;gap:12px;padding:10px 14px;box-shadow:0 8px 24px #00142859}.tank-qr{image-rendering:pixelated;width:84px;height:84px}.tank-code-block{display:flex;flex-direction:column}.tank-code-label{text-transform:uppercase;letter-spacing:.06em;color:#d2ecf8c7;font-size:11px}.tank-code-val{font-family:var(--font-heading);letter-spacing:.08em;color:#fff;font-size:22px;font-weight:800}.tank-instruction{border-radius:var(--border-radius-sm);color:#f4fbff;background:#061c2c8c;border:1px solid #ffffff29;align-self: flex-start;max-width:420px;padding:8px 14px;font-size:13px}.tank-instruction:empty{display:none}.tank-actions{display:flex;align-self: flex-end;gap:10px}.tank-actions .btn{color:#f4fbff;background:#061c2c99;border:1px solid #ffffff2e}.tank-actions .btn:hover{color:#fff;background:#0a283cc7}.tank-empty-hint{border-radius:var(--border-radius-sm);color:#f4fbff;background:#061c2c8c;border:1px solid #ffffff29;align-self: center;margin:0 auto;padding:10px 16px;font-size:14px}.tank-perf{position:absolute;color:#fff;border-radius:var(--border-radius-sm);pointer-events:none;background:#0009;padding:6px 10px;font-family:monospace;font-size:12px;top:10px;right:10px}@media screen and (max-width:640px){.tank-room-info{gap:8px;padding:8px 10px}.tank-qr{width:64px;height:64px}.tank-code-val{font-size:18px}.tank-instruction{max-width:none}}@media print{.app-container,.workspace,.workspace-body{display:block!important;overflow:visible!important;background:0 0!important;width:auto!important;height:auto!important;padding:0!important}.printable-page{box-shadow:none!important;page-break-inside:avoid!important;border:none!important;width:100%!important;min-height:0!important;margin:0!important;padding:0!important}}