:root{
  --brand:#4f46e5; --brand2:#7c3aed; --brand-d:#4338ca; --brand-50:#eef2ff; --brand-100:#e0e7ff;
  --ink:#0f172a; --ink-2:#334155; --muted:#64748b; --line:#e9edf4; --line-2:#f1f4f9;
  --bg:#f5f7fc; --card:#ffffff;
  --ok:#159f5b; --ok-bg:#e7f7ee; --no:#e0433c; --no-bg:#fdecec; --warn:#e08a04; --warn-bg:#fdf3e1;
  --otimo:#159f5b; --bom:#2563eb; --regular:#e08a04; --ruim:#e0433c;
  --r-sm:10px; --r:14px; --r-lg:18px;
  --sh-sm:0 1px 2px rgba(15,23,42,.05);
  --sh:0 1px 3px rgba(15,23,42,.05), 0 10px 25px -12px rgba(15,23,42,.12);
  --sh-lg:0 10px 40px -12px rgba(79,70,229,.22);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; color:var(--ink); line-height:1.55;
  font-family:'Inter',"Segoe UI",Roboto,-apple-system,Arial,sans-serif;
  background:var(--bg);
  background-image:radial-gradient(1200px 600px at 100% -10%, #eef2ff 0%, rgba(238,242,255,0) 55%),
                   radial-gradient(1000px 500px at -10% 0%, #f3e8ff 0%, rgba(243,232,255,0) 45%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{letter-spacing:-.01em}

/* ---------- Topbar ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.nav .inner{max-width:1160px;margin:0 auto;display:flex;align-items:center;gap:6px;padding:0 20px;height:64px}
.brand{font-weight:800;font-size:1.18rem;color:var(--ink);display:flex;align-items:center;gap:9px;margin-right:16px;letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.brand .logo{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:flex;align-items:center;justify-content:center;color:#fff;font-size:1rem;box-shadow:0 4px 10px -2px rgba(79,70,229,.5)}
.nav a.link{color:var(--muted);font-weight:600;font-size:.9rem;padding:8px 13px;border-radius:9px;transition:.15s}
.nav a.link:hover{background:var(--line-2);text-decoration:none;color:var(--ink)}
.nav a.link.active{color:var(--brand);background:var(--brand-50)}
.navspacer{flex:1}
.who-link{display:flex;align-items:center;gap:8px}
.who-link b{color:var(--ink)}
.avatar-mini{display:inline-flex;flex:0 0 auto}
.menutoggle{display:none;background:none;border:1px solid var(--line);font-size:1.35rem;cursor:pointer;color:var(--ink);width:42px;height:42px;border-radius:10px;margin-left:auto;line-height:1}
.menutoggle:hover{background:var(--line-2)}
.links{display:flex;align-items:center;gap:3px;flex:1;margin-left:6px}
@media(max-width:860px){
  .menutoggle{display:inline-flex;align-items:center;justify-content:center}
  .nav .links{
    display:none;position:absolute;top:64px;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;
    padding:12px;gap:4px;box-shadow:var(--sh);max-height:calc(100vh - 64px);overflow:auto;
    animation:slidedown .18s ease;margin-left:0
  }
  .nav .links.open{display:flex}
  .nav a.link{padding:14px 14px;font-size:1rem;border-radius:10px}
  .navspacer{display:none}
  .who-link{border-top:1px solid var(--line);margin-top:6px;padding-top:16px!important}
}
@keyframes slidedown{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ---------- Layout ---------- */
.wrap{max-width:1160px;margin:28px auto;padding:0 20px}
.narrow{max-width:440px}
h1.page{font-size:1.6rem;margin:0 0 4px;font-weight:800}
.sub{color:var(--muted);margin:0 0 24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh)}
.card + .card{margin-top:18px}
a.card{display:block;color:inherit;transition:.16s}
a.card:hover{text-decoration:none;transform:translateY(-2px);box-shadow:var(--sh-lg);border-color:var(--brand-100)}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:1fr 1fr}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:860px){.g3,.g4{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.g2,.g3,.g4{grid-template-columns:1fr}}

/* ---------- KPI ---------- */
.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:18px 20px;box-shadow:var(--sh);transition:.16s}
.kpi:hover{transform:translateY(-2px);box-shadow:var(--sh-lg)}
.kpi .lbl{color:var(--muted);font-size:.76rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px}
.kpi .val{font-size:2rem;font-weight:800;margin-top:6px;letter-spacing:-.02em}
.kpi .hint{font-size:.8rem;color:var(--muted);margin-top:2px}
.kpi.grad{background:linear-gradient(135deg,var(--brand) 0%,var(--brand2) 100%);color:#fff;border:none;box-shadow:var(--sh-lg)}
.kpi.grad .lbl,.kpi.grad .hint{color:rgba(255,255,255,.85)}
.kpi.grad a{color:#fff;text-decoration:underline}

/* ---------- Forms ---------- */
label{display:block;font-weight:600;font-size:.85rem;margin:14px 0 6px;color:var(--ink-2)}
input,select,textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:var(--r-sm);font-size:1rem;background:#fff;color:var(--ink);font-family:inherit;transition:.15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-50)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--r-sm);padding:12px 20px;font-size:1rem;font-weight:700;cursor:pointer;transition:.15s;font-family:inherit;line-height:1.2}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;width:100%;box-shadow:0 8px 18px -8px rgba(79,70,229,.6)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 10px 22px -8px rgba(79,70,229,.7)}
.btn-ghost{background:var(--line-2);color:var(--ink)}
.btn-ghost:hover{background:var(--line)}
.btn-sm{padding:8px 14px;font-size:.88rem}
.btn:active{transform:translateY(1px)}
.alert{padding:12px 15px;border-radius:var(--r-sm);font-size:.9rem;margin-bottom:8px;border:1px solid transparent}
.alert-err{background:var(--no-bg);color:#b3312b;border-color:#f6cfcd}
.alert-ok{background:var(--ok-bg);color:#0f7a45;border-color:#bce8cf}

/* ---------- Badges / chips ---------- */
.badges{display:flex;flex-wrap:wrap;gap:7px}
.badge{background:var(--brand-50);color:var(--brand-d);font-size:.7rem;font-weight:700;padding:5px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.4px}
.pill{display:inline-block;padding:3px 11px;border-radius:999px;font-size:.78rem;font-weight:700}
.pill.otimo{background:var(--ok-bg);color:var(--otimo)} .pill.bom{background:#e6efff;color:var(--bom)}
.pill.regular{background:var(--warn-bg);color:var(--regular)} .pill.ruim{background:var(--no-bg);color:var(--ruim)}

/* ---------- Progress bars ---------- */
.bar{height:8px;background:#eceff5;border-radius:999px;overflow:hidden}
.bar>i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--brand2));transition:width .5s cubic-bezier(.4,0,.2,1)}
.bar.otimo>i{background:linear-gradient(90deg,#16a34a,#22c55e)} .bar.bom>i{background:linear-gradient(90deg,#2563eb,#3b82f6)}
.bar.regular>i{background:linear-gradient(90deg,#d97706,#f59e0b)} .bar.ruim>i{background:linear-gradient(90deg,#dc2626,#f05252)}

/* ---------- Table ---------- */
table.tb{width:100%;border-collapse:collapse}
table.tb th,table.tb td{text-align:left;padding:12px 12px;border-bottom:1px solid var(--line);font-size:.92rem}
table.tb th{color:var(--muted);font-size:.72rem;text-transform:uppercase;letter-spacing:.5px;font-weight:700}
table.tb tbody tr:hover,table.tb tr:hover{background:var(--line-2)}
table.tb tr:last-child td{border-bottom:none}

/* ---------- Simulado ---------- */
.q-context{background:var(--line-2);border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:var(--r-sm);padding:15px 17px;font-size:.95rem;line-height:1.7;white-space:pre-wrap;max-height:280px;overflow:auto;margin-bottom:16px;color:var(--ink-2)}
.q-enun{font-size:1.1rem;line-height:1.6;margin:6px 0 20px;white-space:pre-wrap;font-weight:600;color:var(--ink)}
.alt{display:flex;gap:13px;align-items:flex-start;width:100%;text-align:left;background:#fff;border:1.5px solid var(--line);border-radius:var(--r);padding:14px 16px;margin-bottom:11px;cursor:pointer;font-size:.98rem;line-height:1.5;transition:.13s;color:var(--ink)}
.alt:hover{border-color:var(--brand);background:var(--brand-50);transform:translateX(2px)}
.alt .k{flex:0 0 28px;height:28px;border-radius:50%;background:var(--line-2);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.85rem;transition:.13s}
.alt.correct{border-color:var(--ok);background:var(--ok-bg)} .alt.correct .k{background:var(--ok);color:#fff}
.alt.wrong{border-color:var(--no);background:var(--no-bg)} .alt.wrong .k{background:var(--no);color:#fff}
.alt.sel{border-color:var(--brand);background:var(--brand-50)} .alt.sel .k{background:var(--brand);color:#fff}
.alt.disabled{cursor:default;pointer-events:none}
.alt.disabled:hover{transform:none}
.feedback{margin:4px 0 14px;font-weight:700;font-size:1rem}
.feedback.ok{color:var(--ok)} .feedback.no{color:var(--no)}
.q-top{display:flex;justify-content:space-between;align-items:center;font-size:.85rem;color:var(--muted);margin-bottom:10px;font-weight:600}
.rowbtns{display:flex;gap:10px;margin-top:8px}
.rowbtns .btn{flex:1}
.score-big,.score{font-size:3rem;font-weight:800;letter-spacing:-.02em}
.hide{display:none!important}
.center{text-align:center}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.tip{display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border:1px solid var(--line);border-radius:var(--r);background:#fff;margin-bottom:10px}
.tip .ic{flex:0 0 36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.15rem;background:var(--warn-bg)}
.foot{text-align:center;margin:34px 0 24px;font-size:.78rem;color:#94a3b8;line-height:1.7}

/* ---------- Footer do site ---------- */
.site-footer{margin-top:40px;background:#0f172a;color:#cbd5e1}
.foot-inner{max-width:1160px;margin:0 auto;padding:40px 20px 24px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:28px}
@media(max-width:820px){.foot-inner{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-inner{grid-template-columns:1fr;gap:22px}}
.foot-col h5{margin:0 0 12px;font-size:.78rem;text-transform:uppercase;letter-spacing:.6px;color:#94a3b8;font-weight:700}
.foot-col a{display:block;color:#cbd5e1;font-size:.9rem;padding:5px 0;text-decoration:none}
.foot-col a:hover{color:#fff}
.foot-col p{font-size:.86rem;line-height:1.65;color:#94a3b8;margin:0}
.foot-brand .fb{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.2rem;color:#fff;margin-bottom:10px}
.foot-brand .fb .logo{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:flex;align-items:center;justify-content:center;color:#fff}
.foot-bottom{border-top:1px solid #1e293b;padding:18px 20px;text-align:center;font-size:.82rem;color:#94a3b8}
.foot-bottom b{color:#e2e8f0}

/* tabs de tipo de simulado */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}
.tab{border:1.5px solid var(--line);background:#fff;color:var(--muted);border-radius:999px;padding:9px 16px;font-weight:600;font-size:.9rem;cursor:pointer;transition:.14s}
.tab:hover{border-color:var(--brand);color:var(--ink)}
.tab.active{background:linear-gradient(135deg,var(--brand),var(--brand2));border-color:transparent;color:#fff;box-shadow:0 6px 14px -6px rgba(79,70,229,.6)}
.fld.hide{display:none}

/* botões de ícone (favoritar / reportar) */
.iconbtn{width:40px;height:40px;border:1.5px solid var(--line);background:#fff;border-radius:var(--r-sm);font-size:1.1rem;cursor:pointer;transition:.13s;line-height:1;color:var(--muted)}
.iconbtn:hover{border-color:var(--brand);background:var(--brand-50);color:var(--brand)}
.iconbtn.on{color:#f59e0b;border-color:#f5c04a;background:#fffaf0}

/* justificativa / comentários */
.justif{background:#eff6ff;border:1px solid #d6e6ff;border-left:4px solid var(--bom);border-radius:var(--r-sm);padding:13px 15px;font-size:.93rem;line-height:1.65;margin-bottom:14px;color:#1e3a5f}
.coments{margin-top:10px;border-top:1px solid var(--line);padding-top:12px}
.coment{background:var(--line-2);border-radius:var(--r-sm);padding:10px 13px;margin-bottom:8px;font-size:.9rem}

/* modo cards */
.modo-card{border:2px solid var(--line);border-radius:var(--r);padding:15px 17px;cursor:pointer;transition:.15s;background:#fff}
.modo-card:hover{border-color:var(--brand)}
.modo-card.active{border-color:var(--brand);background:var(--brand-50)}
.modo-card .mtitle{font-weight:700;margin-bottom:3px}

/* timer states */
#timerWrap.warn b{color:var(--warn)}
#timerWrap.danger b{color:var(--no)}
#timerWrap.danger{animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.45}}

/* navegador de questões (modo prova) */
.navgrid{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:10px}
.navcell{width:38px;height:38px;border:1.5px solid var(--line);border-radius:var(--r-sm);background:#fff;color:var(--muted);font-weight:700;cursor:pointer;font-size:.9rem;transition:.12s}
.navcell:hover{border-color:var(--brand)}
.navcell.answered{background:#e6efff;border-color:var(--bom);color:var(--bom)}
.navcell.current{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-50);color:var(--brand)}

/* conquistas */
.conqgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(122px,1fr));gap:12px}
.conq{border:1px solid var(--line);border-radius:var(--r);padding:14px 10px;text-align:center;background:var(--line-2);opacity:.6;filter:grayscale(1);transition:.16s}
.conq.on{opacity:1;filter:none;border-color:#f5c04a;background:linear-gradient(180deg,#fffdf6,#fff7e6);box-shadow:0 6px 16px -8px rgba(245,192,74,.45)}
.conq .ci{font-size:1.9rem;line-height:1}
.conq .cn{font-weight:700;font-size:.86rem;margin-top:5px}
.conq .cd{margin-top:2px;line-height:1.3}

/* botão imprimir/pdf */
.btn-print{background:#0ea5e9;color:#fff;width:auto;padding:10px 16px;box-shadow:0 8px 18px -8px rgba(14,165,233,.6)}
.btn-print:hover{filter:brightness(1.05)}

/* impressão (Salvar como PDF) */
@media print{
  .nav,.foot,.rowbtns,.btn,.iconbtn,.menutoggle,.no-print{display:none!important}
  body{background:#fff}
  .wrap{margin:0;max-width:100%}
  .card{box-shadow:none;border:1px solid #ccc;break-inside:avoid}
  a{color:#000;text-decoration:none}
}

/* ---------- Modais ---------- */
.btn-danger{background:linear-gradient(135deg,#e0433c,#f05252);color:#fff;width:auto;box-shadow:0 8px 18px -8px rgba(224,67,60,.6)}
.btn-danger:hover{filter:brightness(1.05)}
.modal-ov{position:fixed;inset:0;background:rgba(15,23,42,.55);backdrop-filter:blur(3px);display:none;align-items:center;justify-content:center;padding:20px;z-index:1000}
.modal-ov.show{display:flex;animation:fadein .16s ease}
.modal{background:#fff;border-radius:var(--r-lg);max-width:430px;width:100%;box-shadow:0 24px 70px -14px rgba(15,23,42,.5);padding:26px;animation:pop .18s ease}
@keyframes fadein{from{opacity:0}to{opacity:1}}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.97)}to{opacity:1;transform:none}}
.modal .ic-lg{font-size:2.2rem;line-height:1;margin-bottom:8px}
.modal h4{margin:0 0 8px;font-size:1.2rem;font-weight:800}
.modal .m-msg{margin:0 0 16px;color:var(--ink-2);white-space:pre-wrap;line-height:1.6}
.modal .m-field{margin-bottom:8px}
.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:10px}
.modal-actions .btn{width:auto;padding:10px 18px}
/* toasts */
.toastwrap{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);z-index:1100;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none}
.toast{background:var(--ink);color:#fff;padding:12px 18px;border-radius:12px;font-size:.9rem;font-weight:500;box-shadow:0 14px 36px -10px rgba(0,0,0,.45);opacity:0;transform:translateY(12px);transition:.28s;max-width:90vw}
.toast.show{opacity:1;transform:none}
.toast.ok{background:#159f5b}.toast.err{background:#e0433c}

/* landing hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,var(--brand) 0%,var(--brand2) 100%);color:#fff;border-radius:var(--r-lg);padding:48px 34px;text-align:center;box-shadow:var(--sh-lg)}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(600px 240px at 90% -20%, rgba(255,255,255,.22), transparent 60%);pointer-events:none}
.hero h1{font-size:2.1rem;margin:0 0 12px;font-weight:800;letter-spacing:-.02em;position:relative}
.hero p{opacity:.94;max-width:580px;margin:0 auto 22px;position:relative}
.hero .btn{background:#fff;color:var(--brand-d);display:inline-flex;width:auto;padding:13px 28px;position:relative;box-shadow:0 12px 30px -10px rgba(0,0,0,.35)}
.hero .btn:hover{filter:none;transform:translateY(-1px)}