/* ---------- App shell ---------- */
.topbar{
  position:sticky;top:0;z-index:90;
  padding-top:var(--safe-top);
  background:color-mix(in srgb,var(--canvas) 83%,transparent);
  border-bottom:1px solid color-mix(in srgb,var(--line) 82%,transparent);
  backdrop-filter:blur(18px) saturate(1.08);
  -webkit-backdrop-filter:blur(18px) saturate(1.08);
}
.topbar-inner{
  width:min(1600px,100%);min-height:var(--topbar-h);margin:auto;
  padding:9px max(16px,var(--safe-right)) 9px max(16px,var(--safe-left));
  display:flex;align-items:center;gap:12px;
}
.icon-btn{
  min-width:44px;height:44px;padding:0 11px;border:1px solid var(--line);
  border-radius:13px;background:var(--surface);color:var(--ink);
  display:inline-grid;place-items:center;box-shadow:var(--shadow-xs);
  transition:.18s var(--ease)
}
.icon-btn:hover{transform:translateY(-1px);border-color:var(--line-strong)}
.menu-btn{display:inline-grid;font-size:19px;font-weight:900}
.brand-mark{width:50px;height:50px;display:grid;place-items:center;flex:0 0 50px}
.brand-mark img{width:50px;height:50px;object-fit:contain;filter:drop-shadow(0 7px 12px rgba(54,39,25,.18))}
.brand-copy{min-width:0;line-height:1.08}
.brand-copy h1{margin:0;font-size:16px;letter-spacing:-.025em;font-weight:850}
.brand-copy p{margin:6px 0 0;font-size:11.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-copy b{color:var(--brand)}
.top-spacer{flex:1}
.mode-tabs{display:flex;gap:4px;padding:4px;border:1px solid var(--line);border-radius:14px;background:var(--surface-2)}
.mode-tab{min-height:36px;border:0;border-radius:10px;background:transparent;color:var(--muted);padding:0 13px;font-weight:800;font-size:12.5px;transition:.16s var(--ease)}
.mode-tab.active{background:var(--surface);color:var(--brand);box-shadow:var(--shadow-xs)}
.top-exam-btn{min-height:44px;border:0;border-radius:13px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:var(--on-brand);padding:0 15px;font-weight:850;box-shadow:0 9px 23px color-mix(in srgb,var(--brand) 25%,transparent);transition:.18s var(--ease)}
.top-exam-btn:hover{transform:translateY(-1px)}
.account-btn{min-height:38px;max-width:190px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);padding:0 11px;font-size:11px;font-weight:800}
.theme-btn svg{width:18px;height:18px}.theme-btn .moon{display:none}html[data-theme="dark"] .theme-btn .sun{display:none}html[data-theme="dark"] .theme-btn .moon{display:block}

.app-layout{width:min(1600px,100%);margin:auto;display:grid;grid-template-columns:var(--sidebar-w) minmax(0,1fr);min-height:calc(100dvh - var(--topbar-h) - var(--safe-top));transition:grid-template-columns .22s var(--ease)}
.app-layout.sidebar-collapsed{grid-template-columns:0 minmax(0,1fr)}
.app-layout.sidebar-collapsed .sidebar{opacity:0;pointer-events:none;transform:translateX(-18px)}
.sidebar{
  position:sticky;top:calc(var(--topbar-h) + var(--safe-top));height:calc(100dvh - var(--topbar-h) - var(--safe-top));
  overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;
  border-right:1px solid var(--line);background:color-mix(in srgb,var(--surface) 94%,var(--canvas));
  padding:16px 12px calc(24px + var(--safe-bottom));transition:.2s var(--ease)
}
.sidebar-head{display:flex;align-items:center;gap:10px;padding:4px 5px 12px}
.sidebar-head-copy{min-width:0;flex:1}.sidebar-head-copy b{display:block;font-size:13px}.sidebar-head-copy span{display:block;color:var(--muted);font-size:10.5px;margin-top:2px}
.sidebar-close{width:34px;height:34px;border:1px solid var(--line);background:var(--surface-2);color:var(--ink);border-radius:10px;font-weight:900}
.side-progress{padding:13px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(145deg,var(--surface),var(--surface-2));margin-bottom:12px}
.side-progress-top{display:flex;align-items:baseline;justify-content:space-between;gap:8px}.side-progress-top b{font-size:12px}.side-progress-top strong{font-size:17px;color:var(--brand)}
.mini-track{height:6px;background:var(--surface-3);border-radius:99px;overflow:hidden;margin-top:9px}.mini-track span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold),var(--brand));border-radius:99px;transition:width .35s var(--ease)}
.nav-tree{display:grid;gap:8px}
.nav-group{border:1px solid var(--line);border-radius:16px;background:var(--surface);overflow:hidden}
.nav-group summary{list-style:none;display:grid;grid-template-columns:32px minmax(0,1fr) auto;align-items:center;gap:8px;padding:11px 10px;cursor:pointer;background:var(--surface-2);user-select:none}
.nav-group summary::-webkit-details-marker{display:none}
.nav-index{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:var(--surface);border:1px solid var(--line);color:var(--brand);font-weight:900;font-size:11px}
.nav-title{min-width:0}.nav-title b{display:block;font-size:11.8px;line-height:1.25}.nav-title small{display:block;color:var(--muted);font-size:9.7px;margin-top:3px}
.nav-chevron{color:var(--muted);font-size:13px;transition:transform .18s var(--ease)}.nav-group[open] .nav-chevron{transform:rotate(180deg)}
.subnav{padding:5px}
.subnav button{width:100%;min-height:37px;border:0;border-radius:10px;background:transparent;color:var(--ink-2);display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;text-align:left;gap:8px;padding:7px 8px;font-size:11.2px;line-height:1.25;transition:.15s var(--ease)}
.subnav button:hover,.subnav button.active{background:var(--brand-soft);color:var(--brand)}
.subnav .sub-count{font-size:9.5px;color:var(--muted);white-space:nowrap}
.sidebar-backdrop{display:none}

.main{min-width:0;padding:24px clamp(14px,2.5vw,34px) calc(54px + var(--safe-bottom))}
.hero{
  position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-lg);
  background:linear-gradient(135deg,color-mix(in srgb,var(--surface) 98%,transparent) 0%,var(--surface) 58%,var(--brand-soft) 100%);
  box-shadow:var(--shadow);padding:clamp(21px,3vw,34px);margin-bottom:17px
}
.hero::after{content:"";position:absolute;width:330px;height:330px;right:-105px;top:-145px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--gold) 20%,transparent),transparent 68%);pointer-events:none}
.hero-copy{position:relative;z-index:2;max-width:870px;padding-right:clamp(0px,11vw,145px)}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:10.5px;font-weight:900;letter-spacing:.15em;text-transform:uppercase}
.hero-kicker::before{content:"";width:25px;height:2px;border-radius:9px;background:linear-gradient(90deg,var(--gold),var(--brand))}
.hero h2{margin:8px 0 9px;font-size:clamp(29px,4vw,48px);line-height:1.02;letter-spacing:-.05em;font-weight:900}
.hero p{margin:0;color:var(--ink-2);max-width:780px}
.hero-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}
.hero-action{min-height:44px;border-radius:13px;padding:0 15px;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;font-weight:850;font-size:12.5px;transition:.18s var(--ease)}
.hero-action.primary{border:0;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:var(--on-brand);box-shadow:0 10px 25px color-mix(in srgb,var(--brand) 23%,transparent)}
.hero-action.secondary{border:1px solid var(--line-strong);background:var(--surface);color:var(--ink)}
.hero-action:hover{transform:translateY(-1px)}
.hero-mascot{position:absolute;right:clamp(18px,3.4vw,46px);bottom:-10px;width:clamp(92px,10vw,138px);z-index:1;filter:drop-shadow(0 14px 24px rgba(46,32,21,.2));pointer-events:none}
.stats-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,minmax(115px,1fr));gap:9px;margin-top:20px;max-width:790px}
.stat{min-width:0;padding:12px 13px;border:1px solid var(--line);border-radius:15px;background:color-mix(in srgb,var(--surface) 92%,transparent);box-shadow:var(--shadow-xs)}
.stat b{display:block;font-size:21px;line-height:1.05;color:var(--brand);font-weight:900}.stat span{display:block;font-size:10.5px;color:var(--muted);margin-top:4px}
.hero-progress{position:relative;z-index:2;max-width:790px;margin-top:13px}.hero-progress-head{display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:10.5px;font-weight:800}.hero-track{height:8px;margin-top:6px;border-radius:99px;background:var(--surface-3);border:1px solid var(--line);overflow:hidden}.hero-track span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold),var(--brand));transition:width .4s var(--ease)}

.analytics-panel{margin-top:14px;border:1px solid var(--line);border-radius:17px;background:color-mix(in srgb,var(--surface) 88%,transparent);overflow:hidden}
.analytics-panel summary{list-style:none;display:flex;align-items:center;gap:10px;cursor:pointer;padding:11px 13px;font-weight:850;font-size:12px}.analytics-panel summary::-webkit-details-marker{display:none}.analytics-panel summary small{display:block;font-weight:600;color:var(--muted);font-size:10px}.analytics-summary{min-width:0;flex:1}.analytics-total{color:var(--brand);font-size:10.5px}.analytics-chevron{transition:transform .18s var(--ease)}.analytics-panel[open] .analytics-chevron{transform:rotate(180deg)}
.analytics-body{padding:0 12px 13px}.analytics-insights{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:8px}.insight-card,.insight-empty{padding:10px 11px;border:1px solid var(--line);border-radius:12px;background:var(--surface-2);font-size:10.5px}.insight-card span{display:block;color:var(--muted)}.insight-card b{display:block;margin-top:3px}.insight-card.good b{color:var(--green)}.insight-card.focus b{color:var(--red)}
.analytics-table{display:grid;gap:7px}.analytics-row{display:grid;grid-template-columns:minmax(150px,1fr) auto;gap:6px 10px;padding:9px 10px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}.analytics-name b{display:block;font-size:10.8px}.analytics-name small{display:block;color:var(--muted);font-size:9.5px;margin-top:2px}.analytics-metrics{display:flex;align-items:center;gap:7px;font-size:9.8px}.analytics-metrics .ok{color:var(--green)}.analytics-metrics .bad{color:var(--red)}.analytics-bar{grid-column:1/-1;height:5px;background:var(--surface-3);border-radius:99px;overflow:hidden;display:flex}.analytics-bar .ok-fill{background:var(--green)}.analytics-bar .bad-fill{background:var(--red)}.analytics-foot{margin:8px 2px 0;color:var(--muted);font-size:9.5px}

.toolbar-wrap{position:sticky;top:calc(var(--topbar-h) + var(--safe-top) + 8px);z-index:50;margin-bottom:15px;transition:transform .22s var(--ease)}
.toolbar{display:grid;grid-template-columns:1.15fr 1.15fr 1.5fr auto;gap:10px;padding:10px;border:1px solid var(--line);border-radius:18px;background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:var(--shadow-sm)}
.field label{display:block;margin:0 0 4px 3px;color:var(--muted);font-size:9px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.field select,.field input{width:100%;height:44px;border:1px solid var(--line-strong);border-radius:12px;background:var(--surface);color:var(--ink);padding:0 12px;outline:none;font-size:16px}.field select:focus,.field input:focus{border-color:var(--gold);box-shadow:0 0 0 3px color-mix(in srgb,var(--gold) 18%,transparent)}
.view-switch{align-self:end;height:44px;display:flex;gap:3px;padding:3px;border:1px solid var(--line-strong);border-radius:12px;background:var(--surface)}.view-switch button{border:0;border-radius:9px;background:transparent;color:var(--muted);padding:0 10px;font-size:10.5px;font-weight:850}.view-switch button.active{background:var(--brand);color:var(--on-brand)}
.results-bar{display:flex;align-items:center;gap:10px;margin:6px 2px 14px;color:var(--muted);font-size:11.5px}.results-bar b{color:var(--brand)}.results-bar .line{height:1px;background:var(--line);flex:1}.reset-btn{min-height:36px;border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:10px;padding:0 10px;font-size:10.5px;font-weight:800}.reset-btn:hover{color:var(--red);border-color:var(--red-line)}

.footer-note{text-align:center;color:var(--muted);font-size:10.5px;margin:30px 0 0}
.tanuki-footer{width:min(1600px,100%);margin:0 auto;padding:0 max(14px,var(--safe-right)) calc(30px + var(--safe-bottom)) max(14px,var(--safe-left))}
.footer-card{position:relative;overflow:hidden;display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:center;padding:27px;border-radius:25px;background:linear-gradient(130deg,#1d1510,#322319);color:#eadfd3;border:1px solid rgba(215,163,93,.22);box-shadow:var(--shadow)}
.footer-card::after{content:"";position:absolute;right:-65px;top:-90px;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(215,163,93,.24),transparent 67%)}.footer-card img{width:104px;position:relative;z-index:1}.footer-copy{position:relative;z-index:1}.footer-kicker{margin:0 0 4px;color:#d7a35d;font-size:10px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.footer-copy h3{margin:0;font-size:23px}.footer-copy p{margin:6px 0 0;color:#baa99a;font-size:12.5px;max-width:720px}.footer-links{display:flex;flex-wrap:wrap;gap:7px;margin-top:13px}.footer-links a{min-height:38px;display:inline-flex;align-items:center;text-decoration:none;border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:0 12px;color:#e9dfd6;font-size:11px;font-weight:850;background:rgba(255,255,255,.045)}.footer-links a:hover{background:#d7a35d;color:#21170f;border-color:#d7a35d}

.image-lightbox{position:fixed;inset:0;z-index:999;display:none;place-items:center;padding:max(18px,var(--safe-top)) max(18px,var(--safe-right)) max(18px,var(--safe-bottom)) max(18px,var(--safe-left));background:rgba(16,12,9,.88);backdrop-filter:blur(9px);-webkit-backdrop-filter:blur(9px)}.image-lightbox.open{display:grid}.image-lightbox img{max-width:96vw;max-height:90dvh;object-fit:contain;border-radius:16px;background:#fff;box-shadow:0 30px 100px rgba(0,0,0,.5)}
.toast{position:fixed;left:50%;bottom:calc(18px + var(--safe-bottom));z-index:1100;transform:translate(-50%,16px);opacity:0;pointer-events:none;max-width:min(92vw,520px);padding:10px 14px;border-radius:12px;background:#241911;color:#f7eee7;font-size:12px;font-weight:750;box-shadow:0 14px 40px rgba(0,0,0,.3);transition:.22s var(--ease)}.toast.show{opacity:1;transform:translate(-50%,0)}

body.auth-pending > :not(.auth-overlay):not(script){visibility:hidden}
.auth-overlay,.admin-overlay{position:fixed;inset:0;z-index:2000;display:grid;place-items:center;padding:20px;background:rgba(24,17,12,.62);backdrop-filter:blur(9px);-webkit-backdrop-filter:blur(9px)}
.auth-card,.admin-card{width:min(100%,440px);max-height:min(92dvh,740px);overflow:auto;padding:clamp(22px,4vw,34px);border:1px solid var(--line);border-radius:24px;background:var(--surface);color:var(--ink);box-shadow:0 28px 80px rgba(0,0,0,.28)}
.auth-card>img{display:block;width:78px;height:78px;object-fit:contain;margin:0 auto 15px}.auth-card{text-align:center}.auth-card h2,.admin-card h2{margin:5px 0 8px;font-size:27px;letter-spacing:-.035em}.auth-card>p,.admin-card>p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}.auth-kicker{color:var(--brand);font-size:10px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}
.auth-form{display:grid;gap:7px;margin-top:19px;text-align:left}.auth-form label{font-size:11px;font-weight:850;color:var(--ink-2)}.auth-form input{height:45px;border:1px solid var(--line-strong);border-radius:12px;background:var(--surface-2);color:var(--ink);padding:0 12px;font:inherit;outline:0}.auth-form input:focus{border-color:var(--gold);box-shadow:0 0 0 3px color-mix(in srgb,var(--gold) 18%,transparent)}.auth-form button{min-height:45px;margin-top:6px;border:0;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:var(--on-brand);font-weight:850}.auth-message{min-height:17px;margin:2px 0 0;color:var(--red);font-size:11px;font-weight:700}.auth-message.success{color:var(--green)}
.admin-card{width:min(100%,560px)}.admin-head{display:flex;justify-content:space-between;gap:15px;align-items:flex-start}.modal-close{width:38px;height:38px;border:1px solid var(--line);border-radius:10px;background:var(--surface-2);color:var(--ink);font-size:24px;line-height:1}.admin-users{margin-top:22px;padding-top:16px;border-top:1px solid var(--line)}.admin-users h3{margin:0 0 8px;font-size:13px}.admin-users ul{display:grid;gap:6px;margin:0;padding:0;list-style:none}.admin-users li{display:flex;justify-content:space-between;gap:10px;padding:9px 10px;border-radius:10px;background:var(--surface-2);font-size:11px}.admin-users small{color:var(--muted);font-weight:800}