/* HD Concursos — interface do site (landing, login, área do aluno) */
:root{
  --navy:#0B1B33; --navy2:#12284A; --ink:#0F1C33; --soft:#56657D; --mute:#8592A8;
  --bg:#F5F8FC; --white:#FFFFFF; --line:#E3E9F2; --line2:#D2DBE8;
  --blue:#0B6FE8; --blue2:#38A3F8; --blue-soft:#EAF3FF; --gold:#C9A227; --gold2:#E7C866; --green:#16A34A; --wa:#25D366;
  --grad:linear-gradient(92deg,#0B6FE8 0%,#38A3F8 100%);
  --r:18px; --sh:0 1px 2px rgba(15,28,51,.04),0 14px 38px -22px rgba(15,28,51,.28); --sh-hover:0 2px 4px rgba(11,111,232,.06),0 26px 50px -26px rgba(11,111,232,.45);
  --ease:cubic-bezier(.2,.7,.2,1);
  --f:"Plus Jakarta Sans",Inter,system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.65 var(--f);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--blue);text-decoration:none}
img{max-width:100%;height:auto;display:block}
.hdw{width:100%;max-width:1200px;margin:0 auto;padding:0 28px}
h1,h2,h3{font-family:var(--f);letter-spacing:-.025em;color:var(--ink);margin:0}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.kicker{display:inline-flex;align-items:center;gap:8px;font:700 12px/1 var(--f);letter-spacing:.14em;text-transform:uppercase;color:var(--blue)}
.kicker::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--grad)}
.pill{display:inline-flex;align-items:center;gap:8px;padding:7px 14px 7px 8px;border-radius:999px;background:rgba(255,255,255,.75);border:1px solid var(--line);font:600 13px/1 var(--f);color:var(--soft);backdrop-filter:blur(6px)}
.pill b{display:inline-grid;place-items:center;height:22px;padding:0 9px;border-radius:999px;background:var(--navy);color:#fff;font-size:11px;letter-spacing:.06em}
.sec{padding:110px 0}
.sec-h{text-align:center;max-width:720px;margin:0 auto 54px}
.sec-h h2{font-size:clamp(30px,3.6vw,44px);font-weight:800;margin-top:14px;line-height:1.12}
.sec-h p{margin:14px 0 0;color:var(--soft);font-size:17px}

/* botões */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;padding:0 24px;border-radius:12px;border:0;cursor:pointer;font:700 15px/1 var(--f);text-decoration:none;transition:transform .2s var(--ease),box-shadow .25s var(--ease),background .25s,color .2s,border-color .2s}
.btn svg{width:18px;height:18px;transition:transform .25s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn-p{background:var(--navy);color:#fff;box-shadow:0 10px 24px -12px rgba(11,27,51,.7)}
.btn-p:hover{background:#0F2546;transform:translateY(-2px);box-shadow:0 18px 34px -16px rgba(11,111,232,.75);color:#fff}
.btn-b{background:var(--grad);color:#fff;box-shadow:0 12px 26px -14px rgba(11,111,232,.9)}
.btn-b:hover{transform:translateY(-2px);box-shadow:0 20px 38px -16px rgba(11,111,232,.95);color:#fff}
.btn-g{background:#fff;color:var(--ink);border:1px solid var(--line2)}
.btn-g:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}
.btn-w{background:var(--wa);color:#fff}
.btn-w:hover{background:#1EBE5A;transform:translateY(-2px);color:#fff;box-shadow:0 16px 30px -16px rgba(37,211,102,.9)}

/* navegação */
.nav{position:sticky;top:0;z-index:50;background:rgba(245,248,252,.72);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid transparent;transition:border-color .3s,background .3s,box-shadow .3s}
.nav.sombra{border-bottom-color:var(--line);background:rgba(255,255,255,.86);box-shadow:0 8px 24px -20px rgba(15,28,51,.4)}
.nav .hdw{display:flex;align-items:center;gap:28px;height:76px}
.nav .logo img{height:44px;width:auto}
.nav nav{display:flex;gap:6px;margin-left:auto}
.nav nav a{position:relative;padding:8px 12px;border-radius:9px;color:var(--soft);font:600 14.5px/1 var(--f);transition:color .2s,background .2s}
.nav nav a:hover{color:var(--ink);background:rgba(11,111,232,.06)}
.nav .acoes{display:flex;gap:10px}
.nav .acoes .btn{min-height:42px;padding:0 18px;font-size:14px}
.nav .menu{display:none}

/* cartões */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s}
.card.hv:hover{transform:translateY(-6px);box-shadow:var(--sh-hover);border-color:#CFE0FB}
.ic{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:var(--blue-soft);color:var(--blue)}
.ic svg{width:24px;height:24px}

/* aparecer ao rolar */
.rv{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.on{opacity:1;transform:none}
.rv-l{opacity:0;transform:translateX(-30px);transition:opacity .8s var(--ease),transform .8s var(--ease)} .rv-l.on{opacity:1;transform:none}
.rv-r{opacity:0;transform:translateX(30px);transition:opacity .8s var(--ease),transform .8s var(--ease)} .rv-r.on{opacity:1;transform:none}

/* rodapé */
.foot{background:var(--navy);color:#AFC0DA;padding:56px 0 34px}
.foot .hdw{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:center}
.foot img{height:46px;width:auto}
.foot small{font-size:13px}
.foot a{color:#DCE7F7}

/* WhatsApp flutuante */
.wa{position:fixed;right:22px;bottom:22px;z-index:60;display:flex;align-items:center;gap:0;height:60px;padding:0 0 0 0;border-radius:999px;background:var(--wa);color:#fff;box-shadow:0 16px 36px -14px rgba(37,211,102,.85);text-decoration:none;overflow:hidden;transition:gap .35s var(--ease),padding .35s var(--ease),box-shadow .3s}
.wa .wi{flex:none;width:60px;height:60px;display:grid;place-items:center}
.wa .wi svg{width:30px;height:30px}
.wa .tx{max-width:0;white-space:nowrap;overflow:hidden;font:700 14px/1 var(--f);transition:max-width .45s var(--ease)}
.wa:hover{padding-right:22px;color:#fff;box-shadow:0 20px 44px -14px rgba(37,211,102,.95)}
.wa:hover .tx{max-width:320px}
.wa::before{content:"";position:absolute;inset:0;border-radius:999px;box-shadow:0 0 0 0 rgba(37,211,102,.55);animation:waPulse 2.6s infinite}
@keyframes waPulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.5)}70%{box-shadow:0 0 0 18px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}

/* entrada e saída de página */
@keyframes pgIn{from{opacity:0}to{opacity:1}}
body{animation:pgIn .45s ease both}
body.saindo{opacity:0;transition:opacity .2s}

@media (max-width:980px){
  .nav nav{display:none}
  .nav .acoes .btn-g{display:none}
  .sec{padding:80px 0}
}
@media (max-width:560px){
  .hdw{padding:0 18px}
  .nav .hdw{height:66px;gap:12px}
  .nav .logo img{height:36px}
  .nav .acoes .btn{padding:0 14px;min-height:40px}
  .wa{right:14px;bottom:14px;height:54px} .wa .wi{width:54px;height:54px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .rv,.rv-l,.rv-r{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ===================== modo escuro (ativado pelo botão) ===================== */
html[data-theme="dark"]{--ink:#E8EDF6; --soft:#9AA7BD; --mute:#7C8AA3; --bg:#0B1220; --white:#121A2B; --line:#24304A; --line2:#33415E; --blue:#5AA8FF; --blue-soft:#16294A;
  --sh:0 1px 2px rgba(0,0,0,.4),0 14px 38px -22px rgba(0,0,0,.9); --sh-hover:0 26px 50px -26px rgba(90,168,255,.45); color-scheme:dark}
html[data-theme="dark"] body{background:#0B1220; color:var(--ink)}
html[data-theme="dark"] .card,html[data-theme="dark"] .faixa,html[data-theme="dark"] .faq details,html[data-theme="dark"] .tl .dot,html[data-theme="dark"] .eu,html[data-theme="dark"] .prog,html[data-theme="dark"] .at,html[data-theme="dark"] .mbox,html[data-theme="dark"] .mod:hover{background:#121A2B!important; border-color:var(--line)!important}
html[data-theme="dark"] .boas{background:radial-gradient(60% 90% at 90% 0%,rgba(56,163,248,.18),transparent 70%),#121A2B!important; border-color:var(--line)!important}
html[data-theme="dark"] .pill{background:rgba(18,26,43,.8)} html[data-theme="dark"] .pill b{background:#1E3A66}
html[data-theme="dark"] .btn-g{background:#121A2B; color:var(--ink); border-color:var(--line2)}
html[data-theme="dark"] .nav.sombra,html[data-theme="dark"] .nav{background:rgba(11,18,32,.88)!important; border-color:var(--line)!important}
html[data-theme="dark"] .nav .logo img{content:url(hd-logo.svg)}
html[data-theme="dark"] .box input[type=text],html[data-theme="dark"] .box input[type=password]{background:#0F1726!important; color:var(--ink)}
html[data-theme="dark"] .erro{background:#2D1418!important; color:#FECDD3; border-color:#5B2530}
html[data-theme="dark"] .tl .st:hover .dot{background:#1E3A66!important; color:#fff}
html[data-theme="dark"] .ajuda,html[data-theme="dark"] .cta,html[data-theme="dark"] .escuro,html[data-theme="dark"] .lado,html[data-theme="dark"] .dist,html[data-theme="dark"] .plano.top,html[data-theme="dark"] .mat.dest{--ink:#fff; --navy:#0B1B33}
html.trocando-tema *,html.trocando-tema *::before,html.trocando-tema *::after{transition:background-color .35s ease,color .35s ease,border-color .35s ease!important}
html[data-theme="dark"] .btn-p{background:var(--grad); color:#fff}
.tema-bt{width:42px; height:42px; flex:none; border-radius:12px; border:1px solid var(--line); background:var(--white); color:var(--ink); display:inline-grid; place-items:center; cursor:pointer; transition:transform .3s var(--ease),background .3s}
.tema-bt:hover{transform:rotate(-12deg) scale(1.06)} .tema-bt svg{width:20px; height:20px}
.tema-bt .sol{display:none} html[data-theme="dark"] .tema-bt .lua{display:none} html[data-theme="dark"] .tema-bt .sol{display:block}
.tema-bt.flutua{position:fixed; right:18px; bottom:18px; z-index:60; box-shadow:var(--sh)}