/* ---------- Tokens ---------- */
:root{
  --paper:#f4f7fb;
  --surface:#ffffff;
  --surface-2:#eaf1f8;
  --border:#d7e2ee;
  --border-strong:#b9c9dc;
  --ink:#0e2438;
  --ink-soft:#4c5f75;
  --ink-faint:#7c8ba0;

  --navy:#0a2f57;
  --navy-2:#0d3d70;
  --blue:#0076c0;
  --blue-strong:#005a97;
  --sky:#00a6eb;
  --blue-wash:#e7f2fb;
  --blue-wash-strong:#d6e9f8;

  --teal:#0e7c74;
  --teal-wash:#e4f4f2;
  --red:#b3433f;
  --red-wash:#f8e9e8;
  --amber:#b9791f;
  --amber-wash:#f8eede;
  --violet:#6a52a3;
  --violet-wash:#efe9f8;

  --shadow: 0 1px 2px rgba(9,35,64,.06), 0 10px 28px -16px rgba(9,35,64,.28);
  --radius: 10px;
  --content-max: 1180px;
  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body: "Source Sans 3", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#0b1a29;
    --surface:#122234;
    --surface-2:#17293c;
    --border:#25405a;
    --border-strong:#33526f;
    --ink:#eaf1f8;
    --ink-soft:#aec1d4;
    --ink-faint:#7f93a8;

    --navy:#081c30;
    --navy-2:#0a2947;
    --blue:#2fa3e0;
    --blue-strong:#4ab2e6;
    --sky:#4fc4ef;
    --blue-wash:#122b40;
    --blue-wash-strong:#173a53;

    --teal:#4bbdb0;
    --teal-wash:#123230;
    --red:#e28a86;
    --red-wash:#3a1f1f;
    --amber:#e0ac5f;
    --amber-wash:#3a2c14;
    --violet:#b6a1e6;
    --violet-wash:#281f3d;

    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 10px 28px -16px rgba(0,0,0,.6);
  }
}
:root[data-theme="dark"]{
  --paper:#0b1a29;
  --surface:#122234;
  --surface-2:#17293c;
  --border:#25405a;
  --border-strong:#33526f;
  --ink:#eaf1f8;
  --ink-soft:#aec1d4;
  --ink-faint:#7f93a8;

  --navy:#081c30;
  --navy-2:#0a2947;
  --blue:#2fa3e0;
  --blue-strong:#4ab2e6;
  --sky:#4fc4ef;
  --blue-wash:#122b40;
  --blue-wash-strong:#173a53;

  --teal:#4bbdb0;
  --teal-wash:#123230;
  --red:#e28a86;
  --red-wash:#3a1f1f;
  --amber:#e0ac5f;
  --amber-wash:#3a2c14;
  --violet:#b6a1e6;
  --violet-wash:#281f3d;

  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 10px 28px -16px rgba(0,0,0,.6);
}

*{box-sizing:border-box;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;}
[hidden]{display:none!important;}
a{color:var(--blue-strong);}
h1,h2,h3,h4{font-family:var(--font-display); text-wrap:balance; color:var(--ink); margin:0;}
::selection{background:var(--blue-wash-strong);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--sky); outline-offset:2px;}

/* ---------- Shell ---------- */
#app{min-height:100%;}

.topbar{
  background:linear-gradient(155deg, var(--navy) 0%, var(--navy-2) 78%);
  color:#eef5fb;
  position:relative;
  overflow:hidden;
}
.topbar::after{
  content:"";
  position:absolute; inset:0;
  background-image:
    linear-gradient(115deg, transparent 0 42%, rgba(255,255,255,.05) 42% 44%, transparent 44% 100%),
    linear-gradient(115deg, transparent 0 63%, rgba(255,255,255,.04) 63% 65%, transparent 65% 100%),
    linear-gradient(65deg, transparent 0 20%, rgba(0,166,235,.10) 20% 23%, transparent 23% 100%);
  pointer-events:none;
}
.topbar-inner{
  position:relative;
  max-width:var(--content-max); margin:0 auto;
  padding:22px clamp(20px, 4vw, 48px);
  display:flex; align-items:center; gap:14px; flex-wrap:wrap;
}
.brand{display:flex; align-items:center; gap:12px; text-decoration:none; color:inherit; margin-right:auto;}
.brand-mark{
  width:38px; height:38px; border-radius:9px; flex:none;
  background:linear-gradient(150deg, var(--sky), var(--blue));
  display:flex; align-items:center; justify-content:center;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.25);
}
.brand-name{font-family:var(--font-display); font-weight:600; font-size:1.28rem; letter-spacing:.2px;}
.brand-name small{display:block; font-family:var(--font-body); font-weight:400; font-size:.72rem; letter-spacing:.12em; text-transform:uppercase; color:#a9c3da;}

.nav-links{display:flex; gap:4px; font-size:.92rem;}
.nav-links a{
  color:#d9e8f5; text-decoration:none; padding:7px 12px; border-radius:7px;
}
.nav-links a:hover{background:rgba(255,255,255,.08);}

main{max-width:var(--content-max); margin:0 auto; padding:0 clamp(20px, 4vw, 48px) 72px;}

/* ---------- Home hero ---------- */
.hero{padding:40px 0 28px; max-width:640px;}
.eyebrow{
  font-family:var(--font-mono); font-size:.74rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--blue-strong); margin:0 0 10px;
}
.hero h1{font-size:clamp(1.7rem,3.4vw,2.35rem); font-weight:600; margin-bottom:10px;}
.hero p{color:var(--ink-soft); font-size:1.02rem; max-width:56ch;}

.toolbar{
  display:flex; gap:10px; flex-wrap:wrap; align-items:center;
  padding:14px 0 20px; border-bottom:1px solid var(--border); margin-bottom:22px;
}
.search{
  flex:1 1 220px; min-width:180px;
  display:flex; align-items:center; gap:8px;
  background:var(--surface); border:1px solid var(--border);
  border-radius:8px; padding:9px 12px;
}
.search svg{flex:none; opacity:.55;}
.search input{
  border:none; outline:none; background:transparent; color:var(--ink);
  font-size:.95rem; width:100%; font-family:var(--font-body);
}
.search input::placeholder{color:var(--ink-faint);}
.chips{display:flex; gap:7px; flex-wrap:wrap;}
.chip{
  border:1px solid var(--border); background:var(--surface); color:var(--ink-soft);
  font-size:.83rem; padding:6px 12px; border-radius:999px; cursor:pointer;
  font-family:var(--font-body); white-space:nowrap;
}
.chip.active{background:var(--blue); border-color:var(--blue); color:#fff;}
.chip:hover:not(.active){border-color:var(--border-strong);}

.grid{
  display:grid;
  /* auto-fit (não auto-fill) colapsa colunas vazias — com poucos resumos os
     cards existentes ocupam o espaço em vez de deixar colunas fantasma em
     branco; o min(340px,100%) evita que um card sozinho vire uma faixa
     esticada até a borda numa tela larga. */
  grid-template-columns:repeat(auto-fit, minmax(260px, min(340px, 100%)));
  gap:16px;
}
.card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius);
  padding:18px 18px 16px; display:flex; flex-direction:column; gap:10px;
  text-decoration:none; color:inherit; box-shadow:var(--shadow);
  transition:transform .12s ease, border-color .12s ease;
}
.card:hover{transform:translateY(-2px); border-color:var(--border-strong);}
.tag{
  align-self:flex-start; font-family:var(--font-mono); font-size:.7rem; letter-spacing:.06em;
  text-transform:uppercase; padding:4px 9px; border-radius:5px;
  background:var(--blue-wash); color:var(--blue-strong); font-weight:500;
}
.card h3{font-size:1.14rem; font-weight:600; line-height:1.3;}
.card p{margin:0; color:var(--ink-soft); font-size:.9rem;}
.card-meta{
  margin-top:auto; padding-top:10px; border-top:1px solid var(--border);
  display:flex; justify-content:space-between; font-size:.78rem; color:var(--ink-faint);
  font-family:var(--font-mono);
}

.empty-state{
  text-align:center; padding:60px 20px; color:var(--ink-faint);
  border:1px dashed var(--border-strong); border-radius:var(--radius);
}

.add-note{
  margin-top:26px; padding:16px 18px; border-radius:var(--radius);
  background:var(--blue-wash); border:1px solid var(--blue-wash-strong);
  color:var(--ink-soft); font-size:.9rem;
}
.add-note strong{color:var(--ink);}

footer{
  color:var(--ink-faint); font-size:.82rem; border-top:1px solid var(--border); margin-top:20px;
}
.footer-inner{
  max-width:var(--content-max); margin:0 auto;
  padding:26px clamp(20px, 4vw, 48px) 40px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px;
}
footer a{color:var(--ink-faint); text-decoration:underline;}

/* ---------- Resumo page ---------- */
.back-link{
  display:inline-flex; align-items:center; gap:6px; color:#cfe3f4; text-decoration:none;
  font-size:.87rem; padding:14px 0 0;
}
.resumo-hero{padding:10px 0 26px;}
.resumo-hero .tag{background:rgba(255,255,255,.14); color:#eaf3fb;}
.resumo-hero h1{color:#fff; font-size:clamp(1.6rem,3.6vw,2.3rem); margin:10px 0 8px;}
.resumo-hero .subtitle{color:#bcd6ea; font-size:1.02rem; max-width:60ch;}
.resumo-hero .source{color:#89aac4; font-size:.82rem; margin-top:10px; font-family:var(--font-mono);}

.layout{display:grid; grid-template-columns:220px minmax(0,1fr); gap:34px; padding-top:28px; align-items:start;}
@media (max-width:800px){ .layout{grid-template-columns:1fr;} }

.toc{position:sticky; top:16px; display:flex; flex-direction:column; gap:2px;}
@media (max-width:800px){
  .toc{position:static; flex-direction:row; flex-wrap:wrap; gap:6px; margin-bottom:6px;}
}
.toc a{
  color:var(--ink-soft); text-decoration:none; font-size:.85rem; padding:6px 10px;
  border-radius:6px; border-left:2px solid transparent;
}
@media (max-width:800px){ .toc a{border:1px solid var(--border); border-radius:999px;} }
.toc a:hover{color:var(--ink); background:var(--surface-2);}
.toc a.active{color:var(--blue-strong); border-left-color:var(--blue); font-weight:600;}
@media (max-width:800px){ .toc a.active{border-color:var(--blue); background:var(--blue-wash);} }

.content{min-width:0; max-width:70ch;}
.content section{padding-bottom:40px; scroll-margin-top:16px;}
.content section > h2{
  font-size:1.5rem; font-weight:600; padding-bottom:10px; margin-bottom:16px;
  border-bottom:2px solid var(--border);
}
.content h3{font-size:1.12rem; font-weight:600; color:var(--teal); margin:22px 0 8px;}
.content p{margin:0 0 12px; color:var(--ink-soft);}
.content ul, .content ol{margin:0 0 12px; padding-left:1.2em; color:var(--ink-soft);}
.content li{margin-bottom:4px;}
.lead{font-size:1.02rem;}

.callout{
  border-radius:8px; padding:14px 16px; margin:16px 0; border-left:3px solid;
  background:var(--surface); box-shadow:var(--shadow);
}
.callout p, .callout ul{margin:0; color:var(--ink-soft); font-size:.94rem;}
.callout .callout-label{
  display:block; font-weight:700; font-size:.78rem; letter-spacing:.05em; text-transform:uppercase;
  margin-bottom:6px; font-family:var(--font-mono);
}
.callout.objetivo{border-color:var(--teal); background:var(--teal-wash);}
.callout.objetivo .callout-label{color:var(--teal);}
.callout.regra{border-color:var(--red); background:var(--red-wash);}
.callout.regra .callout-label{color:var(--red);}
.callout.clinica{border-color:var(--amber); background:var(--amber-wash);}
.callout.clinica .callout-label{color:var(--amber);}
.callout.armadilha{border-color:var(--violet); background:var(--violet-wash);}
.callout.armadilha .callout-label{color:var(--violet);}
.callout.sintese{border-color:var(--blue); background:var(--blue-wash);}
.callout.sintese .callout-label{color:var(--blue-strong);}

table{width:100%; border-collapse:collapse; margin:14px 0 18px; font-size:.89rem;}
.table-wrap{overflow-x:auto; margin:14px 0 18px;}
.table-wrap table{margin:0;}
th{
  background:var(--navy); color:#eaf1f8; text-align:left; font-weight:600;
  padding:9px 12px; font-size:.78rem; letter-spacing:.03em; text-transform:uppercase;
}
td{padding:10px 12px; border-bottom:1px solid var(--border); color:var(--ink-soft); vertical-align:top;}
tr:last-child td{border-bottom:none;}
td:first-child{color:var(--ink); font-weight:600; white-space:nowrap;}

.steps{list-style:none; margin:16px 0; padding:0; counter-reset:step;}
.steps li{
  counter-increment:step; position:relative; padding:4px 0 20px 40px; border-left:2px solid var(--border); margin-left:15px;
}
.steps li:last-child{border-color:transparent; padding-bottom:0;}
.steps li::before{
  content:counter(step); position:absolute; left:-15px; top:2px;
  width:28px; height:28px; border-radius:50%; background:var(--blue); color:#fff;
  font-family:var(--font-mono); font-weight:600; font-size:.82rem;
  display:flex; align-items:center; justify-content:center;
}
.steps h3{margin:0 0 4px;}
.steps p{margin:0;}

.rev-grid{display:grid; gap:10px; margin:16px 0;}
.rev-card{
  border:1px solid var(--border); border-left:3px solid var(--blue); background:var(--surface);
  border-radius:8px; padding:11px 14px;
}
.rev-card b{display:block; font-size:.82rem; text-transform:uppercase; letter-spacing:.04em; color:var(--blue-strong); margin-bottom:3px; font-family:var(--font-mono);}
.rev-card span{color:var(--ink-soft); font-size:.92rem;}

/* tabs */
.tabs{display:flex; gap:6px; margin-bottom:18px; flex-wrap:wrap; border-bottom:1px solid var(--border); padding-bottom:0;}
.tab-btn{
  background:none; border:none; padding:9px 4px; margin-right:14px; cursor:pointer;
  font-size:.94rem; color:var(--ink-faint); border-bottom:2px solid transparent; position:relative; top:1px;
  font-weight:600;
}
.tab-btn.active{color:var(--blue-strong); border-color:var(--blue);}
.tab-count{
  font-family:var(--font-mono); font-size:.72rem; background:var(--surface-2); color:var(--ink-faint);
  padding:1px 6px; border-radius:999px; margin-left:5px;
}
.tab-btn.active .tab-count{background:var(--blue-wash); color:var(--blue-strong);}
.tab-panel[hidden]{display:none;}

/* quiz */
.qcard{
  border:1px solid var(--border); border-radius:8px; padding:16px 18px; margin-bottom:14px; background:var(--surface);
}
.qcard .qnum{font-family:var(--font-mono); font-size:.76rem; color:var(--ink-faint); margin-bottom:4px; display:block;}
.qcard .qtext{font-weight:600; margin-bottom:12px; color:var(--ink);}
.opts{display:flex; flex-direction:column; gap:7px;}
.opt{
  display:flex; gap:10px; align-items:flex-start; text-align:left; width:100%;
  border:1px solid var(--border); background:var(--surface); border-radius:7px; padding:9px 12px;
  cursor:pointer; font-size:.91rem; color:var(--ink-soft); font-family:var(--font-body);
}
.opt:hover:not(:disabled){border-color:var(--border-strong); background:var(--surface-2);}
.opt .letter{
  font-family:var(--font-mono); font-weight:700; flex:none; width:20px; color:var(--ink-faint);
}
.opt.correct{border-color:var(--teal); background:var(--teal-wash); color:var(--ink);}
.opt.correct .letter{color:var(--teal);}
.opt.wrong{border-color:var(--red); background:var(--red-wash); color:var(--ink);}
.opt.wrong .letter{color:var(--red);}
.opt:disabled{cursor:default;}
.explain{
  margin-top:11px; padding:10px 12px; border-radius:7px; background:var(--blue-wash);
  font-size:.87rem; color:var(--ink-soft); border-left:3px solid var(--blue);
}
.explain b{color:var(--ink);}

.disc-item{border-bottom:1px solid var(--border); padding:12px 0;}
.disc-item:last-child{border-bottom:none;}
.disc-item .qnum{font-family:var(--font-mono); font-size:.78rem; color:var(--blue-strong); margin-right:8px; font-weight:600;}
.disc-hint{margin-top:8px;}
.disc-hint summary{cursor:pointer; color:var(--blue-strong); font-size:.84rem; font-weight:600;}
.disc-hint summary:hover{text-decoration:underline;}
.disc-hint p{margin:8px 0 0; padding:9px 12px; border-radius:7px; background:var(--blue-wash); font-size:.87rem; color:var(--ink-soft); border-left:3px solid var(--blue);}

.checklist-list{list-style:none; margin:14px 0 0; padding:0; display:grid; gap:8px;}
.checklist-item{
  display:flex; align-items:flex-start; gap:10px; border:1px solid var(--border); border-radius:8px;
  padding:10px 12px; background:var(--surface);
}
.checklist-item input[type=checkbox]{margin-top:3px; flex:none; width:16px; height:16px; accent-color:var(--blue);}
.checklist-item label{font-size:.92rem; color:var(--ink-soft); cursor:pointer;}
.checklist-item.checked label span{color:var(--ink-faint); text-decoration:line-through;}

.gabarito-toggle{
  display:inline-flex; align-items:center; gap:8px; background:var(--navy); color:#fff; border:none;
  padding:11px 18px; border-radius:8px; font-size:.92rem; font-weight:600; cursor:pointer; margin-bottom:16px;
}
.gabarito-toggle:hover{background:var(--navy-2);}
.gabarito-list{display:grid; gap:8px;}
.gab-row{display:grid; grid-template-columns:auto auto 1fr; gap:12px; align-items:baseline; font-size:.88rem; padding:6px 0; border-bottom:1px solid var(--border);}
.gab-row b{font-family:var(--font-mono); color:var(--ink-faint);}
.gab-row .letter{color:var(--teal); font-weight:700; font-family:var(--font-mono);}
.gab-row span:last-child{color:var(--ink-soft);}

.pdf-btn{
  display:inline-flex; align-items:center; gap:8px; margin-top:16px;
  background:rgba(255,255,255,.1); color:#eaf3fb; border:1px solid rgba(255,255,255,.28);
  padding:9px 15px; border-radius:8px; font-size:.87rem; text-decoration:none;
}
.pdf-btn:hover{background:rgba(255,255,255,.18);}

/* ---------- Email gate (pedir email pra liberar o resumo) ---------- */
.email-gate{
  max-width:420px; margin:30px auto; background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius); box-shadow:var(--shadow); padding:28px 26px;
}
.email-gate h2{font-size:1.2rem; margin-bottom:6px; font-family:var(--font-display);}
.email-gate p{color:var(--ink-soft); font-size:.92rem; margin:0 0 18px;}
.email-gate label{display:block; font-size:.85rem; font-weight:600; margin:0 0 6px; color:var(--ink);}
.email-gate input[type="email"]{
  width:100%; padding:10px 12px; border:1px solid var(--border); border-radius:8px;
  font-size:.95rem; box-sizing:border-box; background:var(--paper); color:var(--ink);
  font-family:var(--font-body);
}
.email-gate button{
  margin-top:16px; width:100%; background:var(--navy); color:#fff; border:none;
  padding:11px 18px; border-radius:8px; font-size:.95rem; font-weight:600; cursor:pointer;
}
.email-gate button:hover{background:var(--navy-2);}
.email-gate button:disabled{opacity:.6; cursor:default;}
.email-gate .gate-err{
  background:var(--red-wash); border:1px solid var(--red); color:var(--red);
  padding:9px 12px; border-radius:7px; font-size:.85rem; margin:0 0 14px;
}
.email-gate.gate-loading{ text-align:center; color:var(--ink-faint); padding:40px 20px; }

/* ---------- Telas pequenas: reduz a margem lateral pra usar quase 100% da largura ---------- */
@media (max-width:480px){
  .topbar-inner{padding:16px 12px;}
  main{padding:0 12px 56px;}
  footer{padding:20px 12px 32px;}
  .hero{padding:28px 0 20px;}
}