:root {
        color-scheme:light;
        --page-bg:#f6f7fb;--surface:#fff;--text:#222;--muted:#5d6472;
        --border:#d7dbea;--border-soft:#e5e7eb;--summary-bg:#f8f9ff;
        --pill-bg:#eef2ff;--pill-text:#334155;
        --button-bg:#222;--button-alt-bg:#111827;--button-text:#fff;
        --danger-bg:#b91c1c;--danger-text:#991b1b;--error-bg:#fef2f2;
        --link:#374151;--focus:#6366f1;--shadow:0 8px 24px rgba(0,0,0,.06);
    }
    :root[data-theme="dark"] {
        color-scheme:dark;
        --page-bg:#111827;--surface:#1f2937;--text:#f3f4f6;--muted:#b6c0ce;
        --border:#64748b;--border-soft:#475569;--summary-bg:#273449;
        --pill-bg:#343f63;--pill-text:#e0e7ff;
        --button-bg:#c7d2fe;--button-alt-bg:#c7d2fe;--button-text:#172033;
        --danger-bg:#b91c1c;--danger-text:#fecdd3;--error-bg:#4c1d2a;
        --link:#c7d2fe;--focus:#a5b4fc;--shadow:0 8px 24px rgba(0,0,0,.22);
    }
    input,select,textarea {background:var(--surface);color:var(--text);}
    input::placeholder,textarea::placeholder {color:var(--muted);opacity:1;}
    a:not(.btn-link) {color:var(--link);}
    .danger {color:#fff;}
    :focus-visible {outline:2px solid var(--focus);outline-offset:3px;}
    .page-header {display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;
        gap:16px;margin-bottom:18px;}
    .header-actions {display:flex;align-items:center;flex-wrap:wrap;gap:10px;max-width:100%;}
    .theme-control {display:flex;align-items:center;gap:8px;max-width:100%;}
    .theme-control label {margin:0;white-space:nowrap;font-size:13px;color:var(--muted);}
    .theme-control select {width:auto;max-width:100%;min-height:44px;padding:8px 10px;
        font-size:14px;letter-spacing:normal;border:1px solid var(--border);border-radius:12px;}
    .login-theme {display:flex;justify-content:flex-end;margin-bottom:24px;}
    @media print {
        :root, :root[data-theme="dark"] {color-scheme:light;
            --page-bg:#fff;--surface:#fff;--text:#222;--muted:#444;
            --border:#999;--border-soft:#bbb;--summary-bg:#fff;
            --pill-bg:#fff;--pill-text:#222;--link:#222;--shadow:none;}
        body {background:#fff;color:#222;}
        .page-header .header-actions, nav.actions, .theme-control, .skip-link {display:none !important;}
        .card {box-shadow:none;border:1px solid #999;}
    }