/* ZHIBTSOEL / 10XDATA — Premium UI v1.1. Installed after the existing stylesheet. */
:root{--bg:#fcfbf9;--surface:#ffffff;--ink:#272323;--muted:#77706e;--line:#ebe5e1;--line-strong:#dcd3cf;--accent:#704d62;--accent-hover:#593c4d;--accent-wash:#f7eff3;--sidebar:#ffffff;--sidebar-muted:#8a8080;--success:#416d62;--success-wash:#edf5f1;--danger:#a84652;--shadow:0 4px 24px rgba(58,42,39,.035);color-scheme:light}
:root[data-theme=dark]{--bg:#191718;--surface:#252123;--ink:#f2ebeb;--muted:#b8aead;--line:#41383b;--line-strong:#584a50;--accent:#dfb1c8;--accent-hover:#ecc4d5;--accent-wash:#3a2934;--sidebar:#211d20;--sidebar-muted:#aca0a5;--success:#a9d1bd;--success-wash:#263a33;--danger:#eda0aa;--shadow:0 6px 24px rgba(0,0,0,.09);color-scheme:dark}
body{background:var(--bg);color:var(--ink)}
:where(a,button,input,select,textarea):focus-visible{outline-color:var(--accent);outline-offset:3px}
.app-shell .sidebar{width:244px;padding:24px 15px 20px;background:var(--sidebar);color:var(--ink);border-right:1px solid var(--line);transition:width .22s ease,padding .22s ease;z-index:30;overflow-x:hidden;overflow-y:auto;box-shadow:none}
.app-shell .brand-lockup{padding:5px 8px;margin-bottom:42px;min-width:0;gap:13px;white-space:nowrap}
.brand-icon,.brand-logo-box{display:flex;align-items:center;justify-content:center;flex:0 0 auto;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--ink);overflow:hidden}
.brand-icon .brand-asset,.brand-logo-box .brand-asset{display:block;max-height:100%;max-width:100%;width:100%;height:100%;object-fit:contain}
.brand-icon .brand-asset[hidden],.brand-logo-box .brand-asset[hidden]{display:none}
.brand-fallback{font-size:15px;font-weight:850;letter-spacing:-1.5px;color:var(--ink);line-height:1}
.brand-icon:has(.brand-asset:not([hidden])) .brand-fallback,.brand-logo-box:has(.brand-asset:not([hidden])) .brand-fallback{display:none}
.app-shell .brand-text strong{font-size:17px;font-weight:750;letter-spacing:-.5px;color:var(--ink)}
.app-shell .brand-text small{font-size:9px;font-weight:700;letter-spacing:1.4px;color:var(--muted)}
.app-shell .side-label{color:var(--muted);font-weight:800;margin-bottom:13px;padding:0 15px}
.app-shell .side-menu{gap:5px}
.app-shell .side-link{display:flex;align-items:center;gap:12px;white-space:nowrap;color:var(--muted);padding:12px 14px;font-size:13px;font-weight:600;border:1px solid transparent;transition:background .15s ease,color .15s ease}
.side-link svg,.nav-toggle svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;flex:none}
.app-shell .side-link:hover,.app-shell .side-link:focus-visible{color:var(--ink);background:var(--accent-wash);border-color:var(--line)}
.app-shell .side-link.active{background:var(--accent-wash);color:var(--accent);border-color:var(--line)}
.app-shell .sidebar-bottom{border-color:var(--line);padding:22px 14px 0;white-space:nowrap}
.app-shell .sidebar-bottom .tinycaps,.app-shell .sidebar-bottom small{color:var(--muted)}
.app-shell .topbar{background:var(--surface);border-color:var(--line);height:72px;padding:0 35px}
.topbar-leading{display:flex;align-items:center;min-width:0;gap:15px}
.nav-toggle{width:37px;height:37px;display:flex;align-items:center;justify-content:center;flex:none;border:1px solid var(--line);border-radius:10px;color:var(--ink);background:var(--surface);transition:background .15s ease}
.nav-toggle:hover{background:var(--accent-wash)}
.nav-toggle svg{width:19px;height:19px}
.app-shell .breadcrumb{color:var(--muted);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.app-shell .container{max-width:1560px;padding:35px 38px 65px}
.app-shell .page-intro{margin-bottom:26px}
.app-shell .eyebrow{color:var(--accent)}
.app-shell .stat,.app-shell .panel,.app-shell .auth-card,.app-shell .response-card{background:var(--surface);border-color:var(--line);box-shadow:var(--shadow)}
.app-shell .stat{border-radius:15px;padding:23px 24px;transition:box-shadow .15s ease}
.app-shell .stat:hover{box-shadow:0 8px 26px rgba(58,42,39,.065)}
.app-shell .btn.primary,.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.app-shell .btn.primary:hover,.btn.primary:hover{background:var(--accent-hover)}
:root[data-theme=dark] .btn.primary{color:#241c20}
.app-shell .btn.secondary:hover,.btn.secondary:hover{border-color:var(--accent);background:var(--accent-wash)}
.app-shell .avatar{background:var(--accent-wash);color:var(--accent)}
.app-shell .icon-button{color:var(--ink);border-color:var(--line)}
.app-shell .icon-button:hover{background:var(--accent-wash)}
.app-shell .app-footer{background:var(--surface);border-color:var(--line)}
.toast{background:var(--ink);color:var(--surface)}
.auth-page{background:radial-gradient(ellipse at 20% 8%,#f4e8ee 0%,#fcfaf8 55%,#f6f0ed 100%);color:var(--ink)}
.auth-page .auth-brand{color:var(--ink)}
.auth-page .auth-brand p,.auth-page .auth-note{color:var(--muted)}
.brand-logo-box.big{width:60px;height:60px;border-radius:15px}
.respondent-header .brand-logo-box{width:44px;height:44px}
.respondent-header .brand-fallback{color:var(--ink)}
.respondent-page,.respondent-header{background:var(--bg)}
:root[data-theme=dark] .auth-page{background:radial-gradient(ellipse at 20% 8%,#352733 0%,#191718 70%)}
:root[data-theme=dark] .auth-page .auth-brand{color:var(--ink)}
:root[data-theme=dark] .app-shell .btn.primary{color:#211b20}
/* Desktop icon rail state; saved per browser, without disturbing main content. */
@media(min-width:831px){
 html.nav-collapsed .app-shell .sidebar{width:76px;padding-left:9px;padding-right:9px}
 html.nav-collapsed .app-shell .brand-lockup{padding:5px 6px;justify-content:center;margin-bottom:43px}
 html.nav-collapsed .app-shell .brand-text,html.nav-collapsed .app-shell .side-label,html.nav-collapsed .app-shell .nav-text,html.nav-collapsed .app-shell .sidebar-bottom{display:none}
 html.nav-collapsed .app-shell .side-link{justify-content:center;padding:12px 6px;gap:0}
 html.nav-collapsed .app-shell .side-link svg{width:21px;height:21px}
 html.nav-collapsed .app-shell .nav-toggle svg path{transform:rotate(180deg);transform-origin:12px 12px}
}
.nav-backdrop[hidden]{display:none}
.nav-backdrop{position:fixed;inset:0;background:rgba(27,22,27,.48);z-index:25}
@media(max-width:1140px) and (min-width:831px){.app-shell .container{padding:27px}.app-shell .topbar{padding:0 26px}}
@media(max-width:830px){
 .app-shell{display:block}
 .app-shell .sidebar{position:fixed;top:0;bottom:0;left:0;width:min(280px,85vw);height:100dvh;min-height:0;display:flex;flex-direction:column;align-items:stretch;padding:24px 16px;transform:translateX(-105%);transition:transform .22s ease;z-index:31;box-shadow:0 16px 40px rgba(0,0,0,.15)}
 .app-shell.mobile-nav-open .sidebar{transform:translateX(0)}
 .app-shell .sidebar .brand-lockup{margin:0 0 43px;padding:5px 8px}
 .app-shell .sidebar .brand-text small,.app-shell .sidebar .side-label,.app-shell .sidebar .sidebar-bottom{display:block}
 .app-shell .sidebar .side-menu{display:grid;margin-left:0;gap:5px}
 .app-shell .sidebar .side-link{font-size:13px;padding:12px 14px}
 .app-shell .sidebar .side-link .nav-text{display:inline}
 .app-shell .sidebar .sidebar-bottom{margin-top:auto}
 .app-shell .topbar{padding:0 16px;height:62px}
 .app-shell .container{padding:24px 18px}
 .topbar-leading{gap:12px}
 .app-shell .top-actions{gap:9px}
 .app-shell .app-footer{padding:14px 18px}
}
@media(max-width:520px){.app-shell .topbar .breadcrumb{font-size:11px;max-width:40vw}.app-shell .stat{padding:17px}.app-shell .container{padding:23px 15px}.auth-page{padding:18px}.auth-card{padding:25px}}
@media(prefers-reduced-motion:reduce){.app-shell .sidebar,.app-shell .side-link,.nav-toggle{transition:none}}