:root[data-theme="light"],body[data-theme="light"]{
  color-scheme:light;
  --bg:#f2f4f6;--surface:#fff;--panel:#fff;--panel-soft:#e8edf1;--line:#d2d9df;--ink:#172027;--muted:#586570;--mint:#087f68;--mint-dim:#d9f1e9;--qbg:#f2f4f6;--qpanel:#fff;--qraised:#e9edf0;--qline:#d2d9df;--qink:#172027;--qmuted:#586570;--qaccent:#087f68;--qaccent-soft:#d9f1e9;--red:#b42335;
}
body[data-theme="light"]{background:#f2f4f6;color:var(--ink)}
body[data-theme="light"] .site-nav,body[data-theme="light"] .top{background:#f7f8f9ed;border-color:var(--line)}
body[data-theme="light"] .panel,body[data-theme="light"] .auth-panel,body[data-theme="light"] .profile-card,body[data-theme="light"] .sample-card,body[data-theme="light"] .format-card,body[data-theme="light"] .design-grid article,body[data-theme="light"] .workflow-grid article,body[data-theme="light"] .stat-card,body[data-theme="light"] .codes-panel{background:#fff;border-color:var(--line);box-shadow:0 12px 36px #1b27310d}
body[data-theme="light"] .way-card,body[data-theme="light"] .style-picker,body[data-theme="light"] .qr-manager,body[data-theme="light"] .qr-image-tools,body[data-theme="light"] .tracking-choice,body[data-theme="light"] .guide-note,body[data-theme="light"] .privacy-callout,body[data-theme="light"] .owner-project-card{background:#e9eef1;border-color:var(--line)}
body[data-theme="light"] .account-menu{background:#fff;border-color:var(--line);box-shadow:0 16px 44px #1b273122}
body[data-theme="light"] .account-menu>a:hover,body[data-theme="light"] .account-menu>button:hover,body[data-theme="light"] .button:not(.primary){background:#edf0f2;color:var(--ink)}
body[data-theme="light"] .editor input,body[data-theme="light"] .editor select,body[data-theme="light"] .editor textarea,body[data-theme="light"] .auth-panel input,body[data-theme="light"] .profile-fields input,body[data-theme="light"] .profile-fields select,body[data-theme="light"] .qr-manager-form input{background:#fff;color:var(--ink);border-color:var(--line)}
body[data-theme="light"] .style-choice{background:#f7f8f9;color:var(--muted);border-color:var(--line)}
body[data-theme="light"] .style-choice.selected{background:#e1f3ed;color:var(--ink);border-color:var(--mint)}
body[data-theme="light"] .qr-stage{background:transparent;border-color:transparent}
body[data-theme="light"] .empty-qr{background:#fff;border-color:#bdc8d0}
body[data-theme="light"] .profile-color{border-color:#bac4cc}
body[data-theme="light"] .button.primary,body[data-theme="light"] .nav-cta{background:#172027;color:#fff;border-color:#172027}
body[data-theme="light"] .button.primary:hover,body[data-theme="light"] .nav-cta:hover{background:#303c45}
body[data-theme="light"] .code-row:hover{background:#15202a08}
body[data-theme="light"] footer,body[data-theme="light"] .site-footer{border-color:var(--line)}