@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500&display=swap");

/* ExamPros portal — brand blues from the logo (cyan #0ab4ff → royal #1f5eff → deep #0a3fd1), navy sidebar */
:root{
--bg:#f3f6fb;--card:#fff;--line:#e4e9f2;--line-2:#eef2f8;--ink:#0f172a;--ink-2:#334155;--muted:#5b6578;--faint:#8a94a7;
--side:#0b1628;--side-2:#12223a;--side-line:#1b2c47;--side-ink:#c6d1e2;--side-muted:#7d8ca6;
--brand:#1f5eff;--brand-600:#1749d6;--brand-700:#0f3bb5;--brand-50:#eef3ff;--brand-100:#dce6ff;--cyan:#0ab4ff;
--grad:linear-gradient(135deg,#0ab4ff 0%,#1f5eff 55%,#0a3fd1 100%);
--ok:#15803d;--ok-bg:#e8f7ee;--warn:#9a5b00;--warn-bg:#fff4dd;--bad:#c0262d;--bad-bg:#feeceb;--flag:#b45309;--flag-bg:#fff0de;
--r:14px;--r-s:10px;
--sh-1:0 1px 2px rgba(15,23,42,.04),0 1px 3px rgba(15,23,42,.05);
--sh-2:0 12px 32px -14px rgba(15,23,42,.22),0 2px 6px rgba(15,23,42,.05);
--sh-brand:0 8px 20px -8px rgba(31,94,255,.55);
--ease:cubic-bezier(.2,.7,.2,1);
--side-w:252px;
/* aliases used by older markup */
--navy:#0b1628;--navy-2:#12223a;--blue:#1f5eff;--blue-2:#0f3bb5;--blue-bg:#eef3ff;--slate:#f3f6fb;--slate-2:#eef2f8;
}
[hidden]{display:none!important}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink)}
body{font:400 15px/1.55 Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased;font-feature-settings:"cv11","ss01"}
h1,h2,h3{font-family:Inter,system-ui,sans-serif;text-wrap:balance;margin:0;color:var(--ink);letter-spacing:-.015em}
h1{font-size:26px;font-weight:700;line-height:1.25}
h2{font-size:16.5px;font-weight:650}
h3{font-size:15px;font-weight:650}
p{margin:0}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-700)}
.ic{flex:none;display:block}
.eyebrow{font-size:11.5px;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--faint)}
.muted{color:var(--muted)}
.small{font-size:13.5px}
.mono{font-family:"JetBrains Mono",ui-monospace,monospace;font-size:13px}
.num{font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.big{font-size:34px;line-height:1.15}
.sr{position:absolute;left:-9999px}

/* ---------- Shell ---------- */
.app{display:grid;grid-template-columns:var(--side-w) minmax(0,1fr);min-height:100vh;transition:grid-template-columns .28s var(--ease)}
.side{background:var(--side);color:var(--side-ink);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto;overflow-x:hidden;border-right:1px solid #0e1b31;z-index:40}
.side-brand{display:flex;align-items:center;gap:12px;padding:20px 18px 18px max(18px,env(safe-area-inset-left,0px));border-bottom:1px solid var(--side-line);text-decoration:none;min-height:76px}
.logo-tile{width:38px;height:38px;border-radius:10px;background:#fff;display:grid;place-items:center;flex:none;box-shadow:0 4px 14px -4px rgba(10,180,255,.45)}
.logo-tile img{width:30px;height:30px}
.side-brand b{display:block;color:#fff;font-weight:700;font-size:15.5px;letter-spacing:-.01em;line-height:1.2}
.side-brand span{display:block;color:var(--side-muted);font-size:12.5px;line-height:1.3}
.side-scroll{flex:1;padding:16px 12px;display:flex;flex-direction:column;gap:2px}
.nav-label{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--side-muted);margin:12px 12px 8px;font-weight:650;white-space:nowrap}
.nav-label:first-child{margin-top:2px}
.nav{display:flex;flex-direction:column;gap:3px}
.nav a{position:relative;display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;color:var(--side-ink);font-weight:500;font-size:14.5px;white-space:nowrap;transition:background .18s var(--ease),color .18s var(--ease),box-shadow .2s var(--ease)}
.nav a .ic{color:#8fa0bb;transition:color .18s}
.nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.nav a:hover .ic{color:#fff}
.nav a[aria-current="page"]{background:var(--brand);color:#fff;box-shadow:var(--sh-brand)}
.nav a[aria-current="page"] .ic{color:#fff}
.nav .sep{height:1px;background:var(--side-line);margin:10px 6px}
.side-foot{padding:12px;border-top:1px solid var(--side-line);display:flex;flex-direction:column;gap:8px}
.plan-card{border:1px solid var(--side-line);background:linear-gradient(160deg,rgba(31,94,255,.18),rgba(10,180,255,.05));border-radius:12px;padding:12px 14px;display:flex;flex-direction:column;gap:6px}
.plan-card b{color:#fff;font-size:13.5px;font-weight:650}
.plan-card span{color:var(--side-muted);font-size:12.5px}
.plan-card a{color:#9cc2ff;font-size:13px;font-weight:600}
.side-btn{display:flex;align-items:center;gap:12px;width:100%;padding:10px 12px;border-radius:10px;background:none;border:0;color:var(--side-ink);font:500 14.5px Inter,sans-serif;cursor:pointer;text-align:left;white-space:nowrap;transition:background .18s}
.side-btn:hover{background:rgba(255,255,255,.06);color:#fff}
.side-btn.admin{border:1px solid var(--side-line);background:rgba(31,94,255,.12);color:#cfe0ff}
.side-btn .ic{color:#8fa0bb}
.collapse-btn{position:absolute;top:24px;right:-14px;width:28px;height:28px;border-radius:50%;background:#fff;border:1px solid var(--line);display:grid;place-items:center;color:var(--ink-2);cursor:pointer;box-shadow:var(--sh-1);z-index:45;transition:transform .28s var(--ease)}
.collapse-btn:hover{color:var(--brand)}
.side-wrap{position:relative}

/* collapsed rail */
.collapsed .app{grid-template-columns:76px minmax(0,1fr)}
.collapsed .side-brand{justify-content:center;padding-left:18px;padding-right:18px}
.collapsed .side-brand div,.collapsed .nav a span,.collapsed .nav-label,.collapsed .plan-card,.collapsed .side-btn span{display:none}
.collapsed .nav a,.collapsed .side-btn{justify-content:center;padding:11px}
.collapsed .collapse-btn{transform:rotate(180deg)}

.topbar{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.88);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line);height:64px;display:flex;align-items:center;gap:16px;padding:0 max(28px,env(safe-area-inset-right,0px)) 0 32px}
.crumb{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:14px;font-weight:500;white-space:nowrap}
.crumb .ic{color:var(--brand)}
.crumb b{color:var(--ink);font-weight:600}
.top-search{flex:1;max-width:440px;margin-left:auto;position:relative}
.top-search .ic{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--faint)}
.top-search input[type=text]{width:100%;height:40px;border:1px solid var(--line);border-radius:10px;background:var(--bg);padding:0 12px 0 38px;font:14px Inter,sans-serif;color:var(--ink);transition:border-color .18s,background .18s,box-shadow .18s}
.top-search input[type=text]:focus{outline:none;background:#fff;border-color:#b9cbff;box-shadow:0 0 0 4px rgba(31,94,255,.12)}
.top-right{display:flex;align-items:center;gap:14px}
.user-chip{display:flex;align-items:center;gap:10px;text-decoration:none;padding:4px 4px 4px 12px;border-radius:12px;transition:background .18s}
.user-chip:hover{background:var(--line-2)}
.user-chip .who{text-align:right;line-height:1.25}
.user-chip .who b{display:block;color:var(--ink);font-size:14px;font-weight:600}
.user-chip .who span{display:block;color:var(--muted);font-size:12px}
.avatar{width:36px;height:36px;border-radius:10px;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:700;font-size:13px;letter-spacing:.02em;flex:none}
.menu-btn{display:none!important}

.main{min-width:0;display:flex;flex-direction:column}
.content{width:100%;max-width:1320px;margin:0 auto;padding:28px max(32px,env(safe-area-inset-right,0px)) 56px max(32px,env(safe-area-inset-left,0px));animation:enter .45s var(--ease) both}
@keyframes enter{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.page-head h1{margin-top:6px}
.page-head p.muted{margin-top:6px;max-width:72ch}
.back{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-weight:500;font-size:14px}
.back:hover{color:var(--brand)}

/* top progress bar for page changes */
#progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--grad);z-index:100;opacity:0;transition:width .4s var(--ease),opacity .3s}
#progress.on{opacity:1;width:70%;transition:width 6s cubic-bezier(.1,.6,.1,1),opacity .2s}

/* ---------- Building blocks ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;min-width:0;box-shadow:var(--sh-1);transition:box-shadow .25s var(--ease),transform .25s var(--ease),border-color .25s}
.card.lift:hover,a.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#d6deec}
a.card{color:inherit;display:block}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.stack{display:flex;flex-direction:column;gap:16px;min-width:0}
.stack-s{display:flex;flex-direction:column;gap:8px;min-width:0}
.grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(270px,1fr))}
.grid-3{display:grid;gap:18px;grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{display:grid;gap:18px;grid-template-columns:repeat(4,minmax(0,1fr))}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.between{justify-content:space-between}
.split{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:18px}
.mt{margin-top:18px}.mt-s{margin-top:8px}.mt-l{margin-top:26px}
.push{margin-top:auto}
.empty{padding:36px 24px;text-align:center;color:var(--muted);border:1px dashed #d3dbe8;border-radius:var(--r);background:#fff;display:flex;flex-direction:column;align-items:center;gap:10px}
.empty .badge{margin-bottom:4px}

.badge{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;flex:none;background:var(--brand-50);color:var(--brand)}
.badge.cyan{background:#e6f7ff;color:#0284c7}
.badge.green{background:var(--ok-bg);color:var(--ok)}
.badge.amber{background:var(--warn-bg);color:#b26a00}
.badge.violet{background:#f1edff;color:#6d4aff}
.badge.red{background:var(--bad-bg);color:var(--bad)}
.badge.sm{width:32px;height:32px;border-radius:9px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:0 16px;border-radius:var(--r-s);border:1px solid var(--line);font:600 14px Inter,system-ui,sans-serif;text-decoration:none;cursor:pointer;background:#fff;color:var(--ink);white-space:nowrap;transition:background .18s,border-color .18s,box-shadow .2s,transform .12s,color .18s}
.btn:hover{border-color:#c8d3e6;background:#fbfcfe;color:var(--ink)}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 1px 2px rgba(15,23,42,.08),inset 0 1px 0 rgba(255,255,255,.15)}
.btn-primary:hover{background:var(--brand-600);border-color:var(--brand-600);color:#fff;box-shadow:var(--sh-brand)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--brand);padding:0 8px;box-shadow:none}
.btn-ghost:hover{background:var(--brand-50);border-color:transparent;color:var(--brand-700)}
.btn-danger{background:#fff;color:var(--bad);border-color:#f2c4c2}
.btn-danger:hover{background:var(--bad-bg);border-color:#eba7a4;color:var(--bad)}
.btn-sm{min-height:34px;padding:0 12px;font-size:13.5px;border-radius:9px}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}
.btn:focus-visible,.nav a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible,a:focus-visible{outline:3px solid rgba(31,94,255,.35);outline-offset:2px}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.chip{display:inline-flex;align-items:center;gap:6px;min-height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink-2);font-weight:550;font-size:13.5px;transition:all .18s var(--ease)}
.chip:hover{border-color:#c4d2ec;color:var(--ink)}
.chip[aria-current="true"]{background:var(--ink);border-color:var(--ink);color:#fff}

.tag{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--line-2);color:var(--ink-2);white-space:nowrap;line-height:1.5}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.55}
.tag.plain::before{display:none}
.tag.ok{background:var(--ok-bg);color:var(--ok)}
.tag.warn{background:var(--warn-bg);color:var(--warn)}
.tag.bad{background:var(--bad-bg);color:var(--bad)}
.tag.blue{background:var(--brand-50);color:var(--brand-700)}
.tag.flag{background:var(--flag-bg);color:var(--flag)}

.bar{height:8px;background:var(--line-2);border-radius:99px;overflow:hidden}
.bar>i{display:block;height:100%;background:var(--grad);border-radius:inherit;transform-origin:left;animation:grow .9s var(--ease) both}
@keyframes grow{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.meter{display:flex;flex-direction:column;gap:7px;font-size:14px}

.tablewrap{overflow-x:auto;min-width:0;margin:0 -22px -22px;border-top:1px solid var(--line)}
.card>.tablewrap:first-child{margin-top:-22px;border-top:0}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:13px 22px;border-bottom:1px solid var(--line-2);vertical-align:middle}
th{font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);font-weight:650;white-space:nowrap;background:#fafbfd}
tbody tr{transition:background .15s}
tbody tr:hover{background:#f8faff}
tr:last-child td{border-bottom:0}
td.r,th.r{text-align:right}

.flash{border-radius:12px;padding:12px 16px;margin-bottom:20px;font-weight:550;border:1px solid;display:flex;gap:10px;align-items:flex-start;animation:enter .35s var(--ease) both}
.flash.ok{background:var(--ok-bg);color:var(--ok);border-color:#c0e7cf}
.flash.warn{background:var(--warn-bg);color:var(--warn);border-color:#f3dba9}
.flash.bad{background:var(--bad-bg);color:var(--bad);border-color:#f5c6c3}

/* Forms */
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field>span{font-weight:600;font-size:13.5px;color:var(--ink-2)}
.field small{color:var(--muted);font-size:12.5px}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=url],input[type=date],select,textarea{width:100%;min-height:42px;border:1px solid var(--line);border-radius:10px;padding:9px 12px;font:15px Inter,sans-serif;background:#fff;color:var(--ink);transition:border-color .18s,box-shadow .18s}
input:focus,select:focus,textarea:focus{outline:none;border-color:#9fb8ff;box-shadow:0 0 0 4px rgba(31,94,255,.12)}
input:disabled{background:var(--bg);color:var(--muted)}
textarea{min-height:110px;resize:vertical;line-height:1.55}
textarea.code{font:13px/1.55 "JetBrains Mono",ui-monospace,monospace;min-height:260px}
.check{display:flex;gap:10px;align-items:center;font-weight:500;font-size:14.5px}
.check input{width:18px;height:18px;accent-color:var(--brand)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.form-grid .full{grid-column:1/-1}
.danger-zone{border-color:#f2c9c6}

/* Stat tiles */
.stat{display:flex;flex-direction:column;gap:6px}
.stat .badge{margin-bottom:10px}
.stat .num{font-size:28px;line-height:1.15}
.stat .eyebrow{color:var(--muted);letter-spacing:.02em;text-transform:none;font-size:13.5px;font-weight:550}

/* Dashboard hero */
.hero{position:relative;overflow:hidden;border-radius:18px;padding:28px 30px;color:#fff;background:radial-gradient(1200px 300px at 90% -40%,rgba(10,180,255,.55),transparent 60%),linear-gradient(120deg,#0b1628 0%,#0f2a5c 55%,#1f5eff 130%);box-shadow:0 20px 40px -24px rgba(15,42,92,.7);margin-bottom:22px;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:center}
.hero::after{content:"";position:absolute;right:-60px;bottom:-90px;width:300px;height:300px;border-radius:50%;border:42px solid rgba(255,255,255,.06)}
.hero h1{color:#fff;font-size:28px}
.hero p{color:#c9d8f2;margin-top:6px;max-width:58ch}
.hero .eyebrow{color:#8fb4ff}
.hero .btn{position:relative;z-index:1}
.hero-stats{display:flex;gap:28px;position:relative;z-index:1}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats b{font-size:26px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.hero-stats span{font-size:12.5px;color:#a9bfe3}
.action-card{display:flex;flex-direction:column;gap:12px}
.action-card .go{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--brand);margin-top:auto;transition:gap .2s var(--ease)}
.action-card:hover .go{gap:10px}

/* Protected content */
.protected{position:relative;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.wm-layer{position:absolute;inset:0;pointer-events:none;z-index:5;background-repeat:repeat}
.shield{position:fixed;inset:0;background:#000;z-index:9999;display:none;align-items:center;justify-content:center;color:#9fb0c6;font:500 15px Inter,sans-serif;text-align:center;padding:24px}
.shield.on{display:flex}
.reader{display:grid;grid-template-columns:260px minmax(0,1fr);gap:18px;align-items:start}
.qnav{display:flex;flex-direction:column;gap:4px;max-height:70vh;overflow-y:auto;margin:0 -8px;padding:0 8px}
.qnav button{display:flex;align-items:center;gap:10px;width:100%;text-align:left;border:0;background:none;padding:9px 10px;border-radius:9px;font:500 14px Inter,sans-serif;color:var(--ink-2);cursor:pointer;transition:background .15s}
.qnav button:hover{background:var(--line-2)}
.qnav button[aria-current="true"]{background:var(--brand-50);color:var(--brand-700);font-weight:600}
.qnav button .n{width:26px;height:26px;border-radius:7px;display:grid;place-items:center;background:var(--line-2);font-size:12.5px;font-weight:700;flex:none}
.qnav button[aria-current="true"] .n{background:var(--brand);color:#fff}
.qnav button.miss .n{background:var(--bad-bg);color:var(--bad)}
.paper{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px;min-width:0;position:relative;overflow:hidden;min-height:440px;box-shadow:var(--sh-1)}
.paper canvas{display:block;width:100%;animation:enter .3s var(--ease) both}
.opt{border:1px solid var(--line);border-radius:12px;padding:14px 16px;background:#fff}
.opt.correct{border-color:#8fd3a9;background:var(--ok-bg)}
.opt.wrong{border-color:#f0a6a2;background:var(--bad-bg)}
.rationale{background:var(--bg);border-radius:12px;padding:16px 18px;border:1px solid var(--line)}
.skeleton{display:flex;flex-direction:column;gap:12px}
.skeleton i{display:block;height:14px;border-radius:7px;background:linear-gradient(90deg,var(--line-2) 0%,#f7f9fd 50%,var(--line-2) 100%);background-size:200% 100%;animation:shimmer 1.2s linear infinite}
@keyframes shimmer{from{background-position:200% 0}to{background-position:-200% 0}}

/* Simulator run */
.sim{min-height:100vh;display:flex;flex-direction:column;background:var(--bg)}
.sim-head{background:var(--side);color:#fff;padding:12px max(24px,env(safe-area-inset-right,0px)) 12px max(24px,env(safe-area-inset-left,0px));display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;position:sticky;top:0;z-index:20;border-bottom:1px solid #0e1b31}
.sim-head .who{display:flex;align-items:center;gap:12px}
.sim-head .eb{font:600 11.5px Inter,sans-serif;letter-spacing:.09em;text-transform:uppercase;color:#8ea2c4}
.sim-head strong{font:700 17px Inter,sans-serif;letter-spacing:-.01em}
.timer{display:flex;align-items:center;gap:8px;font:500 22px "JetBrains Mono",monospace;background:var(--side-2);border:1px solid var(--side-line);padding:6px 14px;border-radius:10px;font-variant-numeric:tabular-nums;transition:background .3s}
.timer.low{background:#6b1a1d;border-color:#8f2a2e;animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{50%{box-shadow:0 0 0 6px rgba(192,38,45,.18)}}
.sim-body{display:grid;grid-template-columns:minmax(0,1fr) 316px;flex:1}
.sim-q{padding:32px max(32px,env(safe-area-inset-left,0px));min-width:0;position:relative}
.sim-q .stem{font-size:19px;line-height:1.65;max-width:72ch;color:var(--ink)}
.choices{display:flex;flex-direction:column;gap:10px;margin-top:24px;max-width:72ch}
.choice{display:flex;gap:14px;align-items:flex-start;border:1px solid var(--line);border-radius:12px;padding:16px 18px;background:#fff;cursor:pointer;box-shadow:var(--sh-1);transition:border-color .18s,background .18s,box-shadow .2s,transform .12s}
.choice:hover{border-color:#b9c9ec;box-shadow:var(--sh-2)}
.choice:active{transform:scale(.995)}
.choice input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);flex:none}
.choice.sel{border-color:var(--brand);background:var(--brand-50);box-shadow:0 0 0 3px rgba(31,94,255,.12)}
.palette-wrap{background:#fff;border-left:1px solid var(--line);padding:24px max(22px,env(safe-area-inset-right,0px)) 24px 22px}
.palette{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:14px;max-height:50vh;overflow-y:auto;padding:3px}
.palette button{height:40px;border-radius:9px;border:1px solid var(--line);background:#fff;font:650 13.5px Inter,sans-serif;cursor:pointer;color:var(--ink-2);transition:all .15s var(--ease)}
.palette button:hover{border-color:#b9c9ec}
.palette button.ans{background:var(--ok-bg);border-color:#8fd3a9;color:var(--ok)}
.palette button.flg{background:var(--flag-bg);border-color:#f2b56b;color:var(--flag)}
.palette button.cur{border:2px solid var(--brand);background:var(--brand-50);color:var(--brand-700)}
.legend{display:flex;flex-direction:column;gap:8px;margin-top:20px;font-size:13.5px;color:var(--ink-2)}
.legend i{display:inline-block;width:14px;height:14px;border-radius:4px;border:1px solid var(--line);margin-right:8px;vertical-align:-2px}
.modal{position:fixed;inset:0;background:rgba(11,22,40,.5);backdrop-filter:blur(3px);display:none;align-items:center;justify-content:center;padding:20px;z-index:50}
.modal.on{display:flex;animation:fade .2s ease both}
.modal.on .card{animation:pop .28s var(--ease) both}
.modal .card{max-width:480px;width:100%;box-shadow:0 30px 60px -20px rgba(11,22,40,.45)}
@keyframes fade{from{opacity:0}}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.98)}}

/* Auth */
.auth{min-height:100vh;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);background:#fff}
.auth-brand{position:relative;overflow:hidden;background:radial-gradient(900px 420px at 110% -10%,rgba(10,180,255,.45),transparent 60%),radial-gradient(700px 500px at -20% 120%,rgba(31,94,255,.45),transparent 60%),#0b1628;color:#dbe6f7;padding:44px max(52px,env(safe-area-inset-left,0px));display:flex;flex-direction:column;justify-content:space-between;gap:36px}
.auth-brand::after{content:"";position:absolute;right:-120px;top:38%;width:420px;height:420px;border-radius:50%;border:60px solid rgba(255,255,255,.04)}
.auth-brand h1{color:#fff;font-size:40px;line-height:1.12;max-width:16ch;letter-spacing:-.025em;position:relative;z-index:1}
.auth-brand p{color:#b7c8e6;font-size:17px;max-width:44ch;position:relative;z-index:1}
.auth-brand .feats{display:flex;flex-direction:column;gap:14px;position:relative;z-index:1}
.auth-brand .feat{display:flex;gap:12px;align-items:center;color:#dbe6f7;font-size:15px}
.auth-brand .feat .badge{background:rgba(255,255,255,.08);color:#8fd0ff}
.auth-form{padding:48px max(32px,env(safe-area-inset-right,0px)) 48px 32px;display:flex;align-items:center;justify-content:center}
.auth-form form,.auth-form .auth-box{width:100%;max-width:380px;display:flex;flex-direction:column;gap:16px;animation:enter .5s var(--ease) both}
.auth-logo{width:150px;height:auto;margin:0 auto 6px;display:block}
.auth-form h2{font-size:24px;font-weight:700;text-align:center}
.auth-form .lead{color:var(--muted);text-align:center;margin-top:-8px}
.auth-form .btn-primary{min-height:46px;font-size:15px}
.center-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:48px max(20px,env(safe-area-inset-right,0px)) 48px max(20px,env(safe-area-inset-left,0px));background:radial-gradient(800px 400px at 50% -10%,rgba(31,94,255,.10),transparent 70%),var(--bg)}
.center-page>*{animation:enter .45s var(--ease) both}

/* Plans */
.plan{display:flex;flex-direction:column;gap:14px;padding:26px}
.plan.hl{border:2px solid var(--brand);box-shadow:0 24px 50px -28px rgba(31,94,255,.6);position:relative}
.plan ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px}
.plan li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink-2)}
.plan li .ic{color:var(--ok);margin-top:2px}

/* Chart */
.chart text{font-family:Inter,sans-serif;font-size:12.5px;fill:var(--faint)}

/* Admin */
.side.admin{background:#0a1322}
.kv{display:grid;grid-template-columns:140px minmax(0,1fr);gap:8px 16px;font-size:14px}
.kv dt{color:var(--muted)}
.kv dd{margin:0;min-width:0;overflow-wrap:anywhere}
.qpick{max-height:440px;overflow-y:auto;border:1px solid var(--line);border-radius:12px}
.qpick label{display:flex;gap:10px;padding:11px 14px;border-bottom:1px solid var(--line-2);align-items:flex-start;font-size:14px;cursor:pointer;transition:background .15s}
.qpick label:hover{background:#f8faff}
.qpick label:last-child{border-bottom:0}
.qpick input{margin-top:3px;width:16px;height:16px;flex:none;accent-color:var(--brand)}
.clip{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.secret{font:500 14px "JetBrains Mono",monospace;background:var(--line-2);padding:10px 12px;border-radius:9px;user-select:all;overflow-wrap:anywhere;color:var(--ink)}
details.diff summary{cursor:pointer;color:var(--brand);font-weight:550;font-size:13.5px}
details.diff pre{white-space:pre-wrap;font:12.5px/1.5 "JetBrains Mono",monospace;background:var(--bg);padding:10px;border-radius:8px;max-height:280px;overflow:auto}

@media print{body *{display:none!important}body::after{content:"Printing is disabled for ExamPros content.";display:block!important}}

@media (max-width:1100px){
.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
.app,.collapsed .app{grid-template-columns:minmax(0,1fr)}
.side-wrap{position:static}
.side{position:fixed;inset:0 auto 0 0;width:272px;height:100%;z-index:60;transform:translateX(-102%);transition:transform .28s var(--ease)}
.side.open{transform:none;box-shadow:0 0 0 100vmax rgba(11,22,40,.5)}
.collapse-btn{display:none}
.collapsed .side-brand div,.collapsed .nav a span,.collapsed .nav-label,.collapsed .plan-card,.collapsed .side-btn span{display:revert}
.menu-btn{display:inline-flex!important}
.topbar{padding:0 max(16px,env(safe-area-inset-right,0px)) 0 max(16px,env(safe-area-inset-left,0px));gap:10px}
.crumb,.user-chip .who{display:none}
.split,.grid-3,.reader,.sim-body,.auth,.form-grid{grid-template-columns:minmax(0,1fr)}
.auth-brand{padding:28px 20px}
.auth-brand h1{font-size:28px}
.auth-brand .feats{display:none}
.palette-wrap{border-left:0;border-top:1px solid var(--line)}
.content{padding:20px max(16px,env(safe-area-inset-right,0px)) 40px max(16px,env(safe-area-inset-left,0px))}
.hero{padding:22px}
.hero-stats{gap:18px}
.tablewrap{margin:0 -22px -22px}
}
@media (max-width:560px){.grid-4{grid-template-columns:minmax(0,1fr)}.kv{grid-template-columns:minmax(0,1fr)}.top-search{display:none}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}
.card>*+.tablewrap{margin-top:14px}