/* =========================================================
   MyCampus — base visual dos recursos interativos
   Padrão dos livros: títulos condensados (Impact/Panton Black Caps),
   corpo Proxima Nova, roxo #7672b3 (Informática) e verde-água #13b9a6 (Infraestrutura)
   ========================================================= */

:root{
  --font-head: Impact, "Panton Black Caps", "Anton", "Haettenschweiler", "Arial Narrow Bold", sans-serif;
  --font-body: "Proxima Nova", "Montserrat", "Segoe UI", system-ui, sans-serif;
  --ink:#26262e; --muted:#5b5b68; --line:#e2e2ea; --paper:#ffffff; --soft:#f6f6fa;
  --ok:#1b8f5a; --ok-tint:#e3f5ec; --ok-ink:#146c44; --bad:#c9353a; --bad-tint:#fbe7e8; --bad-ink:#a8262b; --warn:#a86b00; --warn-tint:#fff3d6; --warn-ink:#7d5000;
  --radius:14px; --radius-sm:8px;
  --shadow:0 1px 2px rgba(20,20,40,.06),0 8px 24px -8px rgba(20,20,40,.14);
  --ease:cubic-bezier(.22,.8,.25,1);
  --top-h:64px; --bottom-h:72px;
}
.book-a{--brand-strong:#7672b3;--brand-action:#56529a;--brand:#7672b3;--brand-ink:#56529a;--brand-dark:#45417f;--brand-tint:#f0effa;--brand-tint-2:#e5e5f1;--brand-mid:#c3c1de}
.book-b{--brand-strong:#0c8f80;--brand-action:#0a7a6e;--brand:#13b9a6;--brand-ink:#0a7a6e;--brand-dark:#085f56;--brand-tint:#e9f8f6;--brand-tint-2:#d3f2ee;--brand-mid:#98e0d8}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html,body,*{hyphens:none!important;-webkit-hyphens:none!important;word-break:normal;overflow-wrap:normal}
html,body{height:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.65 var(--font-body);-webkit-font-smoothing:antialiased;overflow:hidden}
img{max-width:100%;display:block}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--brand-strong);outline-offset:3px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--brand-dark);color:#fff;padding:10px 16px;border-radius:8px;text-decoration:none}
.skip:focus{top:10px}

/* ---------- barra superior ---------- */
.topbar{position:fixed;inset:0 0 auto 0;height:var(--top-h);display:flex;align-items:center;gap:16px;padding:0 20px;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:30}
.brand{display:flex;align-items:center;gap:10px;min-width:0;text-decoration:none;color:inherit}
.brand-text{display:flex;flex-direction:column;line-height:1.1;min-width:0}
.brand-text b{font-family:var(--font-head);font-weight:400;letter-spacing:.05em;font-size:17px;color:var(--brand-dark);text-transform:uppercase}
.brand-text small{font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-title{flex:1;text-align:center;font-family:var(--font-head);font-size:20px;letter-spacing:.03em;text-transform:uppercase;color:var(--brand-action);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.btn-menu{margin-left:auto;display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 16px;border:1.5px solid var(--brand-strong);border-radius:999px;background:#fff;color:var(--brand-dark);font-weight:700;font-size:14px;letter-spacing:.06em;text-transform:uppercase;cursor:pointer;transition:background .2s,color .2s}
.btn-menu:hover{background:var(--brand-action);color:#fff}
.btn-menu svg{width:20px;height:20px}

/* ---------- palco e telas ---------- */
.stage{position:fixed;inset:var(--top-h) 0 var(--bottom-h) 0;overflow:hidden}
.screen{position:absolute;inset:0;overflow-y:auto;overflow-x:hidden;padding:40px max(28px,calc((100vw - 1180px)/2)) 56px;visibility:hidden;opacity:0;scrollbar-gutter:stable}
.screen:not(.is-active):not(.is-leaving){display:none}
.screen.is-active{visibility:visible;opacity:1;animation:screen-in-next .42s var(--ease) both}
.stage[data-dir="prev"] .screen.is-active{animation-name:screen-in-prev}
.screen.is-leaving{visibility:visible;animation:screen-out-next .24s ease-in both;pointer-events:none}
.stage[data-dir="prev"] .screen.is-leaving{animation-name:screen-out-prev}
@keyframes screen-in-next{from{opacity:0;transform:translateX(48px)}to{opacity:1;transform:none}}
@keyframes screen-in-prev{from{opacity:0;transform:translateX(-48px)}to{opacity:1;transform:none}}
@keyframes screen-out-next{to{opacity:0;transform:translateX(-32px)}}
@keyframes screen-out-prev{to{opacity:0;transform:translateX(32px)}}
.screen.is-active .reveal{animation:reveal .55s var(--ease) both;animation-delay:calc(var(--i,0)*70ms + 120ms)}
@keyframes reveal{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* marca d'água do livro */
.screen::before{content:"";position:absolute;left:-50px;top:-40px;width:380px;height:380px;background:url("../img/digital_logo.png") no-repeat center/contain;filter:grayscale(1) brightness(1.35);opacity:.09;pointer-events:none;z-index:0}
.screen>*{position:relative;z-index:1}

/* ---------- tipografia ---------- */
.meta{font-weight:700;font-size:13.5px;letter-spacing:.03em;color:var(--brand-action);margin:-10px 0 16px}
h1+.meta{margin:-18px 0 22px;font-size:14.5px}
h3+.meta{margin:4px 0 10px}
h1,h2,h3{text-wrap:balance;font-family:var(--font-head);font-weight:400;text-transform:uppercase;color:var(--brand-strong);line-height:1.02;letter-spacing:.01em;margin:0}
h1{font-size:clamp(44px,7vw,84px)}
h2{font-size:clamp(30px,3.6vw,44px);margin-bottom:18px}
h3{font-size:22px;margin:22px 0 8px;color:var(--brand-dark)}
p{margin:0 0 14px;text-align:left;text-wrap:pretty}
li{text-wrap:pretty}
.lead{font-size:19px;color:var(--ink)}
strong{font-weight:700;color:var(--ink)}
ul.dots{margin:0 0 14px;padding:0;list-style:none}
ul.dots li{position:relative;padding-left:24px;margin:6px 0}
ul.dots li::before{content:"";position:absolute;left:4px;top:.62em;width:9px;height:9px;border-radius:50%;background:var(--brand)}
.muted{color:var(--muted)}

/* ---------- layouts ---------- */
.grid-2{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:48px;align-items:center;min-height:100%}
.grid-2.flip{grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr)}
.grid-2.flip>.text{order:2}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.stack{display:grid;gap:16px}
.figure{margin:0;background:#fff;border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);border:1px solid var(--line)}
.figure img{width:100%;height:auto;max-height:46vh;object-fit:contain;border-radius:8px;margin:0 auto}
.figure.bleed{padding:0;overflow:hidden}
.figure.bleed img{max-height:none;border-radius:0;object-fit:cover;aspect-ratio:4/3}
.figure figcaption,.caption{font-size:12.5px;color:var(--muted);text-align:center;font-style:italic;margin-top:10px}
.figure.iso{background:linear-gradient(160deg,#fff, var(--brand-tint));}
.figure.iso svg{max-height:52vh;width:100%;height:auto}

.callout{--hl:#ED924B;position:relative;overflow:hidden;display:flex;gap:14px;align-items:flex-start;background:#fdf0e6;border-left:5px solid var(--hl);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:14px 18px;margin:16px 0}
.callout svg{width:26px;height:26px;flex:none;color:var(--hl);margin-top:2px}
.callout b{display:block;font-family:var(--font-head);font-weight:400;letter-spacing:.05em;color:#a3531a;font-size:16px;text-transform:uppercase;margin-bottom:2px}
.callout p{margin:0;text-align:left}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin:8px 0 6px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.card h4,.card-title{margin:0 0 6px;font-family:var(--font-body);text-transform:none;line-height:1.35;font-size:15px;font-weight:800;color:var(--brand-dark);letter-spacing:.02em}
.card p{font-size:15px;text-align:left;margin:0}
.card .iso-art{max-height:150px;margin:-6px auto 6px}
.tag{display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:3px 9px;border-radius:999px;background:var(--brand-tint-2);color:var(--brand-dark)}
.tag.ok{background:var(--ok-tint);color:var(--ok-ink)}
.tag.bad{background:var(--bad-tint);color:var(--bad-ink)}
.tag.warn{background:var(--warn-tint);color:var(--warn-ink)}

table.tbl{width:100%;border-collapse:collapse;font-size:15px;background:#fff;border-radius:var(--radius-sm);overflow:hidden;box-shadow:var(--shadow)}
.tbl th{background:var(--brand-action);color:#fff;text-align:left;padding:10px 12px;font-weight:700;letter-spacing:.03em}
.tbl td{padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl tr:nth-child(even) td{background:var(--soft)}

/* ---------- capa (abertura de aula do livro) ---------- */
.cover{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:48px;align-items:center;min-height:100%}
.cover h1{margin:6px 0 26px}
.cover .badge-line{font-family:var(--font-head);font-size:20px;letter-spacing:.06em;color:var(--brand-dark);text-transform:uppercase;margin:22px 0 6px}
.cover .badge-line+p{font-weight:600;font-size:15px;text-align:left}
.trail{list-style:none;padding:0;margin:0;columns:2;column-gap:28px}
.trail li{break-inside:avoid;margin:3px 0}
.trail button{display:flex;gap:8px;align-items:baseline;width:100%;min-height:30px;padding:2px 0;border:0;background:none;text-align:left;font-weight:700;font-size:14.5px;cursor:pointer;color:var(--ink)}
.trail button:hover{color:var(--brand-ink)}
.trail button::before{content:"";width:12px;height:12px;flex:none;border-radius:50%;border:2.5px solid var(--brand);transform:translateY(1px)}
.trail button.visited::before{background:var(--brand)}
.cover-art{position:relative}
.cover-art .figure{transform:rotate(1.2deg)}
.cover-art::after{content:"";position:absolute;inset:auto -14px -14px auto;width:60%;height:60%;border-radius:var(--radius);background:var(--brand);z-index:-1;opacity:.9}

/* ---------- botões ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:999px;border:2px solid var(--brand-action);background:var(--brand-action);color:#fff;font-weight:700;font-size:15px;letter-spacing:.03em;cursor:pointer;transition:transform .15s,background .2s,box-shadow .2s;text-decoration:none}
.btn:hover{background:var(--brand-dark);border-color:var(--brand-dark)}
.btn:active{transform:scale(.97)}
.btn.ghost{background:#fff;color:var(--brand-dark)}
.btn.ghost:hover{background:var(--brand-tint)}
.btn[disabled]{opacity:.42;cursor:not-allowed;transform:none}
.btn svg{width:18px;height:18px}

/* ---------- barra inferior ---------- */
.bottombar{position:fixed;inset:auto 0 0 0;height:var(--bottom-h);display:flex;align-items:center;gap:18px;padding:0 20px 0 0;background:#fff;border-top:1px solid var(--line);z-index:30}
.page-tab{align-self:stretch;display:flex;align-items:center;gap:12px;padding:0 26px 0 22px;background:var(--brand-strong);color:#fff;border-radius:0 26px 0 0;font-family:var(--font-head);letter-spacing:.08em}
.page-tab .num{font-size:24px}

.progress{flex:1;display:flex;flex-direction:column;gap:6px;min-width:0}
.progress-track{height:6px;border-radius:99px;background:var(--brand-tint-2);overflow:hidden}
.progress-bar{height:100%;width:0;background:var(--brand);border-radius:99px;transition:width .4s var(--ease)}
.progress-label{font-size:12.5px;color:var(--muted);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav{display:flex;gap:10px}
.nav .btn{min-width:132px}

/* ---------- menu ---------- */
.menu-scrim{position:fixed;inset:0;background:rgba(20,18,40,.45);z-index:40;opacity:0;transition:opacity .25s}
.menu-scrim.open{opacity:1}
.menu-panel{position:fixed;top:0;right:0;bottom:0;width:min(420px,92vw);background:#fff;z-index:41;display:flex;flex-direction:column;transform:translateX(100%);transition:transform .32s var(--ease);box-shadow:-20px 0 40px -20px rgba(0,0,0,.3)}
.menu-panel.open{transform:none}
.menu-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.menu-head h2{font-size:28px;margin:0}
.icon-btn{width:44px;height:44px;display:grid;place-items:center;border:0;border-radius:50%;background:var(--brand-tint);color:var(--brand-dark);cursor:pointer}
.icon-btn svg{width:22px;height:22px}
.menu-list{list-style:none;margin:0;padding:10px;overflow:auto;flex:1}
.menu-list button{display:flex;align-items:center;gap:12px;width:100%;min-height:48px;padding:8px 12px;border:0;border-radius:10px;background:none;text-align:left;cursor:pointer;font-weight:600;font-size:15px}
.menu-list button:hover{background:var(--brand-tint)}
.menu-list button[aria-current="page"]{background:var(--brand-action);color:#fff}
.menu-list button[aria-current="page"] .done{color:#fff}
.menu-list .n{width:30px;height:30px;flex:none;display:grid;place-items:center;border-radius:50%;background:var(--brand-tint-2);color:var(--brand-dark);font-weight:800;font-size:13px}
.menu-list button[aria-current="page"] .n{background:#fff}
.menu-list .done{margin-left:auto;color:var(--ok);font-size:12px;font-weight:800;letter-spacing:.06em}
.menu-list .act .n{background:var(--brand-dark);color:#fff}
.menu-list li button[aria-current="page"] .n{background:#fff;color:var(--brand-dark)}
.menu-foot{padding:14px 20px;border-top:1px solid var(--line);display:flex;gap:10px;flex-wrap:wrap}

/* ---------- feedback / toast ---------- */
.toast{position:fixed;left:50%;top:calc(var(--top-h) + 14px);transform:translate(-50%,-14px);background:var(--ink);color:#fff;padding:12px 20px;border-radius:12px;font-weight:600;font-size:15px;opacity:0;transition:.3s var(--ease);z-index:50;pointer-events:none;max-width:min(560px,90vw);text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}
.modal{position:fixed;inset:0;display:grid;place-items:center;padding:20px;z-index:60;background:rgba(20,18,40,.5);opacity:0;pointer-events:none;transition:opacity .25s}
.modal.open{opacity:1;pointer-events:auto}
.modal-box{width:min(620px,100%);max-height:88vh;overflow:auto;background:#fff;border-radius:18px;padding:26px 28px;box-shadow:0 30px 60px -20px rgba(0,0,0,.4);transform:translateY(16px) scale(.98);transition:transform .3s var(--ease)}
.modal.open .modal-box{transform:none}
.modal-box h3{margin-top:0}

/* ---------- celebração ---------- */
.celebrate{text-align:center;padding:30px 24px;border-radius:var(--radius);background:linear-gradient(140deg,var(--brand-action),var(--brand-dark));color:#fff;box-shadow:var(--shadow)}
.celebrate h3{color:#fff;font-size:34px;margin:6px 0 10px}
.celebrate p{text-align:center;color:#fff;opacity:.95}
.confetti{position:fixed;inset:0;pointer-events:none;z-index:70;overflow:hidden}
.confetti i{position:absolute;top:-12px;width:9px;height:14px;border-radius:2px;animation:fall linear forwards}
@keyframes fall{to{transform:translateY(105vh) rotate(720deg)}}

/* ---------- responsivo ---------- */
@media (max-width:980px){
  .grid-2,.grid-2.flip,.cover{grid-template-columns:1fr;gap:26px}
  .grid-2.flip>.text{order:0}
  .grid-3{grid-template-columns:1fr}
  .trail{columns:1}
  .cover-art{max-width:520px}
}
@media (max-width:640px){
  :root{--top-h:58px;--bottom-h:66px}
  body{font-size:16px}
  .topbar{padding:0 12px;gap:8px}
  .topbar-title{display:none}
  .brand-text small{display:none}
  .btn-menu span{display:none}
  .btn-menu{padding:0 12px}
  .screen{padding:26px 16px 40px}
  p{text-align:left}
  .page-tab{padding:0 14px}
  .page-tab .lbl{display:none}
  .nav .btn{min-width:0;padding:0 14px}
  .nav .btn span{display:none}
  .progress-label{display:none}
}


/* =========================================================
   Microinterações (ui-ux-pro-max): fade-in, botões, menu, carregamento, zoom
   ========================================================= */
/* textos entram com fade suave */
.screen.is-active .reveal{animation:fade-up .5s var(--ease) both;animation-delay:calc(var(--i,0)*60ms + 100ms)}
@keyframes fade-up{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* botão avançar: seta desliza no hover, compressão no clique */
.btn svg{transition:transform .22s var(--ease)}
.btn-next:hover svg,.btn:not(.ghost):hover>svg:last-child{transform:translateX(4px)}
.btn-prev:hover svg{transform:translateX(-4px)}
.btn:active{transform:scale(.96)}
.btn-next{position:relative}
/* chamariz da primeira tela, a cada 7 s */
.btn-next.beckon{animation:beckon 7s ease-in-out 1.5s infinite}
.btn-next.beckon svg{animation:beckon-arrow 7s ease-in-out 1.5s infinite}
@keyframes beckon{0%,82%,100%{box-shadow:0 0 0 0 rgba(0,0,0,0)}86%{box-shadow:0 0 0 8px color-mix(in srgb,var(--brand) 30%,transparent)}92%{box-shadow:0 0 0 14px color-mix(in srgb,var(--brand) 0%,transparent)}}
@keyframes beckon-arrow{0%,80%,100%{transform:none}84%{transform:translateX(7px)}88%{transform:translateX(0)}92%{transform:translateX(7px)}96%{transform:none}}

/* ripple de clique (menu e botões) */
.ripple-host{position:relative;overflow:hidden}
.ripple{position:absolute;border-radius:50%;pointer-events:none;background:currentColor;opacity:.22;transform:scale(0);animation:ripple .55s ease-out forwards}
@keyframes ripple{to{transform:scale(1);opacity:0}}
.menu-list button{transition:background .2s,transform .15s}
.menu-list button:active{transform:scale(.98)}
.menu-panel.open .menu-list li{animation:menu-in .35s var(--ease) both;animation-delay:calc(var(--i,0)*25ms + 80ms)}
@keyframes menu-in{from{opacity:0;transform:translateX(18px)}to{opacity:1;transform:none}}

/* carregamento dos boxes: brilho de skeleton que atravessa uma vez */
.card,.figure,.callout,.iso-card,.calc,.cost-chart,.q-card,.check{position:relative;overflow:hidden}
.screen.is-active :is(.card,.figure,.callout,.iso-card,.tbl)::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(100deg,transparent 30%,rgba(255,255,255,.75) 50%,transparent 70%);transform:translateX(-110%);animation:shimmer 1.1s ease-out both;animation-delay:calc(var(--i,0)*60ms + 250ms)}
.tbl{position:relative}
@keyframes shimmer{to{transform:translateX(110%)}}
/* barras de ângulo crescem ao entrar na tela */
.screen.is-active .angle-bar i{animation:grow-bar .9s var(--ease) both}
.screen.is-active .angle-bar:nth-child(2) i{animation-delay:.12s}.screen.is-active .angle-bar:nth-child(3) i{animation-delay:.24s}
.screen.is-active .angle-bar:nth-child(4) i{animation-delay:.36s}.screen.is-active .angle-bar:nth-child(5) i{animation-delay:.48s}
@keyframes grow-bar{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.screen.is-active .angle-bar b{animation:fade-up .4s ease both;animation-delay:.7s}

/* zoom nas imagens */
.zoom-wrap{position:relative;display:block;cursor:zoom-in;border-radius:8px}
.figure:not(.bleed) .zoom-wrap{width:fit-content;max-width:100%;margin:0 auto}
.figure:not(.bleed) .zoom-wrap>img{width:auto;max-width:100%}
.figure.bleed .zoom-btn{right:10px;bottom:10px}
.zoom-wrap img{transition:transform .3s var(--ease)}
.zoom-wrap:hover img{transform:scale(1.02)}
.zoom-btn{position:absolute;right:-6px;bottom:-6px;width:38px;height:38px;border-radius:50%;border:0;background:rgba(255,255,255,.92);box-shadow:0 2px 8px rgba(0,0,0,.22);display:grid;place-items:center;cursor:zoom-in;transition:transform .2s var(--ease)}
.zoom-btn img{width:20px!important;height:20px!important;max-height:none!important;margin:0!important;border-radius:0!important}
.zoom-wrap:hover .zoom-btn{transform:scale(1.1)}
.lightbox{position:fixed;inset:0;z-index:90;background:rgba(15,14,30,.82);display:grid;place-items:center;padding:24px;opacity:0;transition:opacity .25s;cursor:zoom-out}
.lightbox.open{opacity:1}
.lightbox figure{margin:0;max-width:94vw;display:grid;gap:10px;justify-items:center;transform:scale(.94);transition:transform .3s var(--ease)}
.lightbox.open figure{transform:none}
.lightbox img{max-width:94vw;max-height:84vh;object-fit:contain;border-radius:10px;background:#fff}
.lightbox figcaption{color:#fff;font-size:14px;text-align:center}
.lightbox .icon-btn{position:absolute;top:16px;right:16px;background:#fff}

/* tela de finalização */
.end{display:grid;place-items:center;min-height:100%}
.end>div{max-width:760px;width:100%}
.end .badge{width:96px;height:96px;border-radius:50%;margin:0 0 18px;display:grid;place-items:center;background:var(--brand-action);color:#fff;box-shadow:0 0 0 12px var(--brand-tint-2)}
.end .badge svg{width:48px;height:48px}
.end h2{font-size:clamp(40px,6vw,68px);margin-bottom:12px}
.end p{max-width:680px;margin:0 0 14px}
.end .actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.refs{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.refs li{text-align:left;font-size:14.5px;line-height:1.5;padding:10px 12px;border-radius:10px;background:var(--soft)}
.refs a{color:var(--brand-ink);font-weight:700;overflow-wrap:anywhere;text-underline-offset:3px}
.modal-box h4{margin:16px 0 6px;font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--brand-dark)}
@media (pointer:coarse){.trail button{min-height:44px}}

/* Movimento reduzido: nada desliza, gira ou pulsa sem parar; ficam fades curtos
   e as mudanças de cor que confirmam uma ação (estado, seleção, resultado). */
@media (prefers-reduced-motion:reduce){
  .screen.is-active,.stage[data-dir="prev"] .screen.is-active{animation:fade-only .2s ease both}
  .screen.is-leaving,.stage[data-dir="prev"] .screen.is-leaving{animation:fade-out .12s ease both}
  .screen.is-active .reveal{animation:fade-only .25s ease both;animation-delay:0ms}
  .screen.is-active :is(.card,.figure,.callout,.iso-card,.tbl)::after{display:none}
  .screen.is-active .angle-bar i{animation:fade-only .3s ease both}
  .screen.is-active .angle-bar b{animation:none}
  .btn svg,.zoom-wrap img,.zoom-btn{transition:none}
  .btn-next:hover svg,.btn:not(.ghost):hover>svg:last-child,.btn-prev:hover svg,.zoom-wrap:hover img,.zoom-wrap:hover .zoom-btn,.btn:active{transform:none}
  .btn-next.beckon,.btn-next.beckon svg{animation:none}
  .menu-panel{transform:none;opacity:0;transition:opacity .2s ease}
  .menu-panel.open{opacity:1}
  .menu-panel.open .menu-list li{animation:none}
  .modal-box,.modal.open .modal-box,.lightbox figure,.lightbox.open figure{transform:none;transition:none}
  .toast,.toast.show{transform:translate(-50%,0);transition:opacity .2s ease}
  .confetti{display:none}
}
@keyframes fade-only{from{opacity:0}to{opacity:1}}
@keyframes fade-out{to{opacity:0}}

/* partes do navegador nas cores do livro */
::selection{background:var(--brand-tint-2);color:var(--brand-dark)}
.screen,.menu-list,.modal-box{scrollbar-width:thin;scrollbar-color:var(--brand-mid) transparent}
input,textarea{caret-color:var(--brand-action)}
a{text-underline-offset:3px}
.progress-label,.page-tab .num,.stat b,#qScore,output{font-variant-numeric:tabular-nums}
/* celular: a figura vem logo depois do título, antes do texto */
@media (max-width:980px){
  .grid-2{gap:0}
  .grid-2>.text{display:contents}
  .grid-2>.text>:is(h2,.meta){order:0}
  .grid-2>:is(.figure,.stack,.duo){order:1;margin:6px 0 22px}
  .grid-2>:not(.text):not(.figure):not(.stack):not(.duo){order:3;margin:8px 0 22px}
  .grid-2>.text>:not(h2):not(.meta){order:2}
}