/* Blog Chunks Express — identidade da landing (landing-page.html) e do lote v2 do Instagram:
   Bricolage Grotesque no display, IBM Plex Sans no corpo, IBM Plex Mono em etiqueta e pronúncia,
   faixa listrada, hero navy com gradiente, destaque dourado no escuro e vermelho no claro,
   card de frase igual ao do app (inglês > pronúncia vermelha > tradução cinza) e blocos em
   formato de tecla. Gerado junto com as páginas por design-2026/build-blog.py. */
:root{
  color-scheme:light only;
  --navy:#0B2035; --navy-2:#123152; --navy-glow:#1A466F; --ink:#0A1220; --ink-2:#16273F;
  --paper:#F4F8FC; --paper-2:#EAF1F8; --line:#DCE5EE; --line-2:#CBD8E5;
  --slate:#43596E; --muted:#5C7286;
  --red:#C8102E; --red-deep:#96081F; --pron:#BC2029; --red-soft:#FF6B7F; --red-tint:#FFE1E5;
  --gold:#FFC65C; --on-dark:#EAF2FA; --on-dark-2:#A9BECE; --line-dark:rgba(255,255,255,.14);
  --display:'Bricolage Grotesque','IBM Plex Sans',Arial,sans-serif;
  --body:'IBM Plex Sans',Arial,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,Consolas,monospace;
  --shadow:0 1px 2px rgba(10,18,32,.04),0 14px 34px -18px rgba(10,18,32,.22);
  --shadow-lg:0 2px 4px rgba(10,18,32,.06),0 26px 56px -24px rgba(10,18,32,.4);
  --wrap:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--paper);overflow-x:clip}
body{margin:0;background:var(--paper);color:var(--ink-2);font:17.5px/1.7 var(--body);-webkit-font-smoothing:antialiased;overflow-x:clip}
img,svg{max-width:100%}
a{color:inherit;text-underline-offset:4px}
a:hover{color:var(--red)}
a:focus-visible,button:focus-visible,summary:focus-visible,[role=button]:focus-visible{outline:2.5px solid var(--red);outline-offset:3px;border-radius:6px}
.on-dark a:focus-visible,.on-dark button:focus-visible{outline-color:#fff}
::selection{background:var(--red);color:#fff}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-inline:28px}
.skip{position:absolute;left:16px;top:-80px;background:#fff;padding:10px 14px;z-index:90;border-radius:8px}
.skip:focus{top:10px}
[hidden]{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- Header e faixa (iguais à landing) ---------- */
.site-nav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(10px) saturate(160%);-webkit-backdrop-filter:blur(10px) saturate(160%);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:13px}
.logo{display:inline-flex;align-items:center;gap:9px;text-decoration:none}
.logo:hover{color:inherit}
.logo-mark{width:30px;height:28px;flex:none}
.logo-word{font:800 17px/1 var(--display);color:#16273F;letter-spacing:-.01em}
.logo-word b{display:block;font:italic 800 12px/1 var(--body);color:var(--navy);text-align:right;margin-top:2px}
.nav-links{display:flex;gap:26px;list-style:none;margin:0;padding:0}
.nav-links a{text-decoration:none;color:var(--slate);font-size:14.5px;font-weight:500}
.nav-links a:hover,.nav-links a[aria-current]{color:var(--navy)}
.nav-links a[aria-current]{font-weight:700}
.stripe{height:5px;background:repeating-linear-gradient(90deg,var(--red) 0 8.33%,#fff 8.33% 16.66%,var(--navy) 16.66% 25%)}

/* ---------- Botões ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font:700 16px/1.2 var(--body);padding:15px 26px;border-radius:9px;text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease;min-height:48px;text-align:center}
.btn-primary{background:linear-gradient(#D5173A,#B50E28);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.22),0 12px 26px -12px rgba(200,16,46,.6)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);background:var(--red-deep)}
.btn-outline{background:#fff;border-color:var(--line-2);color:var(--navy)}
.btn-outline:hover{border-color:var(--navy);color:var(--navy)}
.on-dark .btn-outline,.btn-ghost{background:transparent;border-color:rgba(255,255,255,.34);color:#fff}
.on-dark .btn-outline:hover,.btn-ghost:hover{background:rgba(255,255,255,.08);color:#fff;border-color:#fff}
.nav-cta{padding:10px 16px;min-height:42px;font-size:14px}
.link-arrow{font:600 15px var(--body);color:var(--navy);text-decoration:none;border-bottom:1.5px solid var(--line-2);padding-bottom:2px}
.link-arrow:hover{border-color:var(--red);color:var(--red)}
.on-dark .link-arrow{color:#fff;border-color:rgba(255,255,255,.35)}
.on-dark .link-arrow:hover{color:var(--gold);border-color:var(--gold)}

/* ---------- Tipografia base ---------- */
h1,h2,h3,h4{font-family:var(--display);font-weight:800;letter-spacing:-.03em;line-height:1.1;color:var(--navy);margin:0 0 .45em}
.on-dark h1,.on-dark h2,.on-dark h3{color:#fff}
p{margin:0 0 1em}
.eyebrow{display:flex;align-items:center;gap:12px;font:500 12.5px/1.4 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--red);margin:0 0 16px}
.eyebrow::before{content:"";width:24px;height:2px;background:currentColor;flex:none}
.on-dark .eyebrow{color:var(--red-soft)}
.hl{color:var(--red)}
.on-dark .hl{color:var(--gold)}

/* ---------- Hero escuro (landing) ---------- */
.band-dark{background:radial-gradient(ellipse at 85% 25%,var(--navy-glow) 0,transparent 55%),var(--navy);color:#fff}
.band-deep{background:radial-gradient(ellipse at 10% 95%,#123152 0,transparent 55%),#071828;color:#fff}
.on-dark p{color:var(--on-dark-2)}
.hero{padding:52px 0 64px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.1) 1px,transparent 0);background-size:26px 26px;opacity:.45;pointer-events:none}
.hero>.wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center}
.hero h1{font-size:clamp(34px,4.6vw,56px);line-height:1.06;letter-spacing:-.035em;margin-bottom:20px;text-wrap:balance}
.hero .lead{font-size:18.5px;line-height:1.6;max-width:600px;color:var(--on-dark-2)}
.hero .lead b{color:#fff;font-weight:600}
.crumb{font:500 12.5px/1.5 var(--mono);color:var(--on-dark-2);margin:0 0 22px;letter-spacing:.02em}
.crumb a{color:var(--on-dark);text-decoration:none}
.crumb a:hover{color:var(--gold)}
.crumb nav{display:inline}
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:24px 0 0;padding:0}
.chips li{font:500 12.5px/1 var(--mono);padding:9px 12px;border-radius:8px;background:rgba(255,255,255,.07);border:1px solid var(--line-dark);color:var(--on-dark)}
.chips li b{color:var(--gold);font-weight:600}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px 22px;align-items:center;margin-top:30px}

/* card do hero — o "app-preview" da landing, levemente girado */
.app-card{position:relative;background:var(--paper);border:6px solid #16293C;border-radius:26px;padding:26px 28px 24px;max-width:420px;margin-inline:auto;box-shadow:0 30px 60px -20px #030B14;transform:rotate(2deg);color:var(--ink)}
.app-card-top{display:flex;justify-content:space-between;gap:12px;font:600 10px/1.3 var(--mono);letter-spacing:.1em;color:var(--slate);padding-bottom:16px;border-bottom:1px solid var(--line)}
.app-card .ctx{font-size:13.5px;color:var(--slate);margin:22px 0 8px}
.app-card .en{font:800 clamp(30px,3.3vw,40px)/1.06 var(--display);letter-spacing:-.035em;color:var(--ink);margin:0 0 12px}
.app-card .pron{font:600 16px/1.4 var(--mono);color:var(--pron);margin:0 0 6px}
.app-card .pt{font-size:14.5px;color:var(--slate);margin:0}
.app-card .keys{margin:22px 0 4px}
.app-card .say{margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.hero-caption{text-align:center;font-size:12.5px;color:var(--on-dark-2);margin:20px 0 0}

/* ---------- Blocos em formato de tecla ---------- */
.keys{display:flex;flex-wrap:wrap;gap:9px;align-items:center}
.key{font:700 16px/1.2 var(--display);letter-spacing:-.01em;color:#123152;background:#E3ECF5;border:1px solid #C5D5E5;border-bottom-width:4px;border-radius:9px;padding:8px 12px 7px}
.key.on{background:#fff;border-color:var(--red);color:var(--red)}
.key.blank{background:transparent;border:2px dashed #A9BECE;color:var(--muted);min-width:64px;text-align:center}
.keys .plus{font:500 16px var(--mono);color:var(--muted)}

/* ---------- Áudio ---------- */
.say{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.say:empty{display:none}
.say button,.dlg-actions button,.line-play{font:600 13.5px/1 var(--body);display:inline-flex;align-items:center;gap:7px;padding:9px 14px 9px 11px;min-height:40px;border-radius:999px;border:1.5px solid var(--line-2);background:#fff;color:var(--navy);cursor:pointer;transition:border-color .15s ease,background .15s ease}
.say button:hover,.dlg-actions button:hover,.line-play:hover{border-color:var(--navy)}
.say button svg,.dlg-actions button svg,.line-play svg{width:16px;height:16px;fill:currentColor;flex:none}
.say button.is-playing,.dlg-actions button.is-playing,.line-play.is-playing{background:var(--navy);border-color:var(--navy);color:#fff}
.say button.slow{color:var(--slate);font-weight:500}
.say button.slow.is-playing{color:#fff}
.say-sm button{min-height:36px;padding:7px 11px 7px 9px;font-size:12.5px}
.line-play{width:38px;height:38px;min-height:0;padding:0;justify-content:center;flex:none}
.audio-toast{position:fixed;left:50%;bottom:92px;transform:translateX(-50%);background:var(--ink);color:#fff;font-size:14px;padding:11px 16px;border-radius:10px;z-index:80;box-shadow:var(--shadow-lg);max-width:calc(100% - 32px)}

/* ---------- Layout do artigo ---------- */
.article-grid{display:grid;grid-template-columns:220px minmax(0,740px);gap:64px;justify-content:center;padding-block:56px 30px}
.toc{align-self:start;position:sticky;top:96px;font-size:14px}
.toc-title{font:600 11.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:toc;border-left:2px solid var(--line)}
.toc li{counter-increment:toc}
.toc ol a{display:block;padding:7px 0 7px 16px;margin-left:-2px;border-left:2px solid transparent;text-decoration:none;color:var(--slate);line-height:1.35}
.toc ol a::before{content:counter(toc,decimal-leading-zero);font:500 11px var(--mono);color:var(--muted);margin-right:8px}
.toc ol a:hover{color:var(--navy);border-color:var(--red)}
.toc-cta{margin-top:24px;padding:16px;border-radius:12px;background:#fff;border:1px solid var(--line)}
.toc-cta p{font-size:13.5px;line-height:1.45;color:var(--slate);margin:0 0 10px}
.toc-cta a{font-weight:700;font-size:14px;color:var(--red);text-decoration:none}
.toc-mobile{display:none}
.body>section{margin-bottom:54px;scroll-margin-top:90px}
.body h2{font-size:clamp(26px,3vw,34px);line-height:1.12;margin-bottom:18px;text-wrap:balance}
.body h3{font-size:21px;margin:30px 0 12px}
.body p:where(:not([class])){color:var(--ink-2)}
.body p.soft{color:var(--slate)}
.body :where(ul,ol):not([class]){padding-left:22px}
.body :where(ul,ol):not([class])>li{margin-block:8px}
.body li::marker{color:var(--red)}
.body strong{color:var(--navy)}
.body .on-dark p:where(:not([class])){color:var(--on-dark-2)}
.body .on-dark strong,.body .on-dark b{color:#fff}
.en-inline{font-weight:600;color:var(--navy)}
.quick{background:#fff;border:1px solid var(--line);border-left:4px solid var(--red);border-radius:6px 14px 14px 6px;padding:22px 26px;margin:0 0 50px;box-shadow:var(--shadow)}
.quick-label{display:block;font:600 11.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--red);margin-bottom:10px}
.quick p{margin:0;font-size:18px;line-height:1.6}
.section-num{display:block;font:500 12px/1 var(--mono);letter-spacing:.14em;color:var(--red);margin-bottom:12px}

/* ---------- Card de frase (igual ao do app) ---------- */
.phrase{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px 24px 20px;margin:22px 0;box-shadow:var(--shadow)}
.phrase-top{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font:600 10.5px/1.3 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--line)}
.phrase-top .tag{color:var(--red)}
.phrase .ctx{font-size:14px;color:var(--slate);margin:0 0 6px}
.phrase .en{font:800 clamp(25px,3vw,31px)/1.15 var(--display);letter-spacing:-.03em;color:var(--ink);margin:0 0 8px}
.phrase .pron{font:500 15.5px/1.45 var(--mono);color:var(--pron);margin:0 0 4px}
.phrase .pt{font-size:15.5px;color:var(--slate);margin:0}
.phrase .keys{margin:16px 0 0}
.phrase .say{margin-top:16px}
.phrase-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:22px 0}
.phrase-pair .phrase{margin:0}
.phrase-pair .phrase .en{font-size:24px}

/* ---------- Lista de frases (2 a 12) ---------- */
.rows{display:grid;gap:10px;margin:22px 0;padding:0;list-style:none}
.row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 18px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px 14px 20px}
.row .when{grid-column:1/-1;font:600 10.5px/1.3 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.row .en{font:700 19px/1.3 var(--display);letter-spacing:-.015em;color:var(--ink);margin:0}
.row .pron{font:500 13.5px/1.4 var(--mono);color:var(--pron);margin:2px 0 0}
.row .pt{font-size:14.5px;color:var(--slate);margin:2px 0 0}
.row .say{justify-content:flex-end}
.rows.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.rows.two .row{grid-template-columns:minmax(0,1fr);align-content:start}
.rows.two .row .say{justify-content:flex-start;margin-top:6px}

/* ---------- Troque o final ---------- */
.swap{display:grid;gap:10px;margin:22px 0;background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px 22px}
.swap-row{display:flex;flex-wrap:wrap;align-items:center;gap:9px;padding-bottom:10px;border-bottom:1px dashed var(--line)}
.swap-row:last-child{border-bottom:0;padding-bottom:0}
.swap-row .pt{font-size:14px;color:var(--slate);flex-basis:100%;margin:0}
.swap-row .say{margin-left:auto}
.swap-note{font-size:14px;color:var(--slate);margin:6px 0 0}

/* ---------- Cola rápida: situação → frase ---------- */
.cola{margin:22px 0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}
.cola-row{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.2fr) auto;gap:6px 20px;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line)}
.cola-row:last-child{border-bottom:0}
.cola-row:nth-child(even){background:#FAFCFE}
.cola .q{font-size:15px;color:var(--slate)}
.cola .a{font:700 18px/1.3 var(--display);color:var(--ink);letter-spacing:-.01em}
.cola .a small{display:block;font:500 13px/1.4 var(--mono);color:var(--pron);letter-spacing:0;margin-top:2px}
.cola-head{background:var(--navy);color:#fff}
.cola-head .q,.cola-head .a{font:600 11px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--on-dark-2)}

/* ---------- Três formas: afirmar, negar, perguntar ---------- */
.trio{margin:22px 0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}
.trio-head,.trio-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
.trio-head div{font:600 11px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--on-dark-2);background:var(--navy);padding:13px 18px}
.trio-row{border-top:1px solid var(--line)}
.trio-row>div{padding:14px 18px;border-left:1px solid var(--line)}
.trio-row>div:first-child{border-left:0}
.trio .en{font:700 17px/1.3 var(--display);color:var(--ink);margin:0}
.trio .pron{font:500 12.5px/1.4 var(--mono);color:var(--pron);margin:2px 0 0}
.trio .pt{font-size:13.5px;color:var(--slate);margin:2px 0 8px}
.trio .form{display:none}

/* ---------- Diálogo ---------- */
.dlg{margin:26px 0;background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}
.dlg-head{display:flex;flex-wrap:wrap;gap:12px 18px;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--navy);color:#fff}
.dlg-head .tag{display:block;font:600 10.5px/1.3 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin-bottom:4px}
.dlg-head .tag.made{color:var(--on-dark-2)}
.dlg-title{font:800 19px/1.2 var(--display);color:#fff;margin:0}
.dlg-actions{display:flex;gap:8px;flex-wrap:wrap}
.dlg-actions:empty{display:none}
.dlg-actions button{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.3);color:#fff}
.dlg-actions button:hover{border-color:#fff}
.dlg-actions button.is-playing{background:#fff;color:var(--navy);border-color:#fff}
.dlg-intro{font-size:14.5px;color:var(--slate);padding:14px 20px 0;margin:0}
.lines{display:grid;gap:12px;padding:18px 20px 22px}
.line{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 12px;align-items:start;max-width:88%;padding:12px 14px 12px 16px;border-radius:4px 16px 16px 16px;background:var(--paper);border:1px solid var(--line);transition:box-shadow .2s ease,border-color .2s ease}
.line.b{justify-self:end;border-radius:16px 4px 16px 16px;background:#E6EEF7;border-color:#D3E0EC}
.line.is-speaking{border-color:var(--red);box-shadow:0 0 0 3px var(--red-tint)}
.line .who{grid-column:1/-1;font:600 10.5px/1.2 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.line .en{font:600 18.5px/1.35 var(--display);color:var(--ink);margin:0;letter-spacing:-.01em}
.line .pron{font:500 13px/1.4 var(--mono);color:var(--pron);margin:3px 0 0}
.line .pt{font-size:14.5px;color:var(--slate);margin:3px 0 0}
.line .line-play{grid-row:2/5;grid-column:2;align-self:center}
.line .en,.line .pron,.line .pt{grid-column:1}
.dlg-foot{font-size:14px;color:var(--slate);padding:0 20px 18px;margin:0}

/* ---------- Passos ---------- */
.steps{list-style:none;margin:24px 0;padding:0;display:grid;gap:14px;counter-reset:st}
.steps li{counter-increment:st;display:grid;grid-template-columns:auto minmax(0,1fr);gap:4px 16px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;margin:0}
.steps li::before{content:"PASSO " counter(st);grid-row:1/3;align-self:start;font:600 11px/1 var(--mono);letter-spacing:.08em;color:#fff;background:var(--red);border-radius:7px;padding:8px 9px;white-space:nowrap}
.steps b{font:800 18px/1.25 var(--display);color:var(--navy);letter-spacing:-.01em}
.steps span{font-size:15.5px;color:var(--slate);line-height:1.55}

/* ---------- Plano de 15 minutos ---------- */
.plan-bar{display:grid;gap:4px;margin:26px 0 8px}
.plan-seg{display:grid;grid-template-columns:repeat(15,1fr);gap:4px}
.plan-seg span{height:14px;border-radius:4px;background:var(--line-2)}
.plan-seg span.s1{background:#1A466F}.plan-seg span.s2{background:#24608F}.plan-seg span.s3{background:var(--red)}.plan-seg span.s4{background:#E0A43A}.plan-seg span.s5{background:var(--navy)}
.plan-legend{display:flex;flex-wrap:wrap;gap:6px 16px;font:500 12px/1.4 var(--mono);color:var(--slate);margin:6px 0 0;padding:0;list-style:none}
.plan-legend li{display:flex;align-items:center;gap:6px;margin:0}
.plan-legend i{width:12px;height:12px;border-radius:3px;display:inline-block}

/* ---------- Exemplos contextualizados ---------- */
.examples{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:22px 0}
.example{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;display:flex;flex-direction:column;gap:4px}
.example .when{font:600 10.5px/1.3 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--red);margin:0 0 4px}
.example .en{font:700 19px/1.3 var(--display);color:var(--ink);margin:0;letter-spacing:-.01em}
.example .pron{font:500 13px/1.4 var(--mono);color:var(--pron);margin:0}
.example .pt{font-size:14.5px;color:var(--slate);margin:0}
.example .why{font-size:14.5px;line-height:1.55;color:var(--ink-2);margin:8px 0 0;padding-top:10px;border-top:1px dashed var(--line)}
.example .say{margin-top:8px}

/* ---------- Exercícios com resposta ---------- */
.exs{display:grid;gap:10px;margin:22px 0}
details.ex{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0;margin:0}
details.ex[open]{border-color:var(--line-2);box-shadow:var(--shadow)}
details.ex>summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:14px;align-items:center;padding:15px 18px;min-height:56px;font-weight:600;color:var(--navy);line-height:1.45}
details.ex>summary::-webkit-details-marker{display:none}
details.ex>summary .n{font:600 11px/1 var(--mono);color:#fff;background:var(--navy);border-radius:6px;padding:6px 7px}
details.ex>summary .plus{font:500 20px/1 var(--mono);color:var(--red);transition:transform .2s ease}
details.ex[open]>summary .plus{transform:rotate(45deg)}
.ans{padding:0 18px 18px 18px;margin-left:calc(18px + 14px + 12px)}
.ans-label{font:600 10.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--red);margin:0 0 8px}
.ans .en{font:700 20px/1.35 var(--display);color:var(--ink);margin:0}
.ans .pron{font:500 13.5px/1.4 var(--mono);color:var(--pron);margin:3px 0 0}
.ans .why{font-size:15px;color:var(--slate);margin:8px 0 0;line-height:1.55}
.ans .say{margin-top:10px}

/* ---------- Variações formal / informal ---------- */
.variants{margin:22px 0;display:grid;gap:10px}
.variant{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 18px}
.variant .en{font:700 18px/1.3 var(--display);color:var(--ink);margin:0}
.variant .pron{font:500 13px/1.4 var(--mono);color:var(--pron);margin:0}
.variant .pt{font-size:14.5px;color:var(--slate);margin:0}
.reg{grid-row:1/4;grid-column:2;font:600 10.5px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;padding:7px 9px;border-radius:7px;border:1px solid var(--line-2);background:var(--paper-2);color:var(--ink-2);white-space:nowrap}
.reg.r1{background:#FFF8EC;border-color:#F2D08E;color:#7A4A00}
.reg.r2{background:#EDF3F9;border-color:#C9DAEA;color:#1A466F}
.reg.r3{background:#FFF2F3;border-color:#FFC9CE;color:#99161F}

/* ---------- Vocabulário ---------- */
.vocab{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:22px 0}
.word{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px}
.word-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin-bottom:10px;padding-bottom:10px;border-bottom:1px dashed var(--line)}
.word-head .w{font:800 24px/1 var(--display);color:var(--navy);letter-spacing:-.02em}
.word-head .m{font-size:14.5px;color:var(--slate)}
.word .en{font:700 16.5px/1.35 var(--display);color:var(--ink);margin:0}
.word .pron{font:500 12.5px/1.4 var(--mono);color:var(--pron);margin:2px 0 0}
.word .pt{font-size:14px;color:var(--slate);margin:2px 0 0}
.word .say{margin-top:10px}

/* ---------- Comparação: montar do zero x bloco pronto ---------- */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:24px 0}
.compare>div{border-radius:18px;padding:20px 22px}
.compare .zero{background:#fff;border:1px solid var(--line)}
.compare .ready{background:var(--navy);color:#fff}
.compare h3{font-size:18px;margin:0 0 12px}
.compare .ready h3{color:#fff}
.load{display:flex;flex-wrap:wrap;gap:7px}
.load span{font-size:13px;color:var(--slate);border:1px solid var(--line);background:var(--paper);border-radius:999px;padding:6px 11px}
.compare .ready p{color:var(--on-dark-2);font-size:14.5px;margin:12px 0 0}
.compare .ready .key{background:#fff}

/* ---------- Nota, dica ---------- */
.note{margin:22px 0;font-size:16px;line-height:1.6;padding:16px 20px;border-left:4px solid var(--red);border-radius:4px 12px 12px 4px;background:var(--paper-2);color:var(--ink-2)}
.note b{color:var(--navy)}

/* ---------- História e leitura ---------- */
.story{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px 30px;margin:22px 0;box-shadow:var(--shadow)}
.story-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 18px;align-items:center;padding-bottom:14px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.story-head .tag{font:600 10.5px/1.3 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.story-head .tag b{color:var(--red);font-weight:600}
.story-title{font:800 24px/1.15 var(--display);color:var(--navy);margin:4px 0 0;letter-spacing:-.02em}
.story-text p{font-size:19px;line-height:1.85;color:var(--ink);margin:0 0 14px}
mark.chunk{background:linear-gradient(transparent 58%,var(--red-tint) 58%);color:inherit;padding:0 1px;border-radius:2px;font-weight:600}
mark.chunk[role=button]{cursor:pointer}
mark.chunk[role=button]:hover,mark.chunk.is-speaking{background:var(--red-tint)}
.story-legend{font-size:13.5px;color:var(--slate);margin:6px 0 0}
details.tr{margin-top:8px;border-top:1px solid var(--line);padding-top:12px}
details.tr>summary{cursor:pointer;font-weight:600;color:var(--navy);min-height:44px;display:flex;align-items:center}
details.tr p{font-size:16px;color:var(--slate);line-height:1.7}
.gloss{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 0;padding:0;list-style:none}
.gloss li{font-size:13.5px;background:var(--paper-2);border:1px solid var(--line);border-radius:8px;padding:6px 10px;margin:0}
.gloss li b{font-family:var(--display);color:var(--navy)}
.reading .story-head{align-items:flex-start}
.continue{margin:18px 0 0;padding:16px 18px;border-radius:14px;background:var(--navy);color:#fff}
.continue p{color:var(--on-dark-2);margin:0 0 10px;font-size:15px}
.continue p b{color:#fff}

/* ---------- CTAs ---------- */
.demo-cta{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:26px;align-items:center;margin:10px 0 56px;padding:28px 30px;border-radius:22px;position:relative;overflow:hidden}
.demo-cta .title{font:800 clamp(22px,2.6vw,28px)/1.15 var(--display);color:#fff;letter-spacing:-.02em;margin:0 0 10px}
.demo-cta p{font-size:15.5px}
.demo-cta .btn{margin-top:6px}
.demo-mock{background:var(--paper);border-radius:16px;padding:16px;transform:rotate(-2deg);box-shadow:0 20px 40px -18px #020910}
.demo-mock .m-top{font:600 9px/1 var(--mono);letter-spacing:.12em;color:var(--slate);padding-bottom:10px;border-bottom:1px solid var(--line);margin-bottom:12px}
.demo-mock .m-q{font-size:12.5px;color:var(--slate);margin:0 0 10px}
.demo-mock .keys{gap:6px}
.demo-mock .key{font-size:13px;padding:6px 9px 5px}
.quiz-cta{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;margin:40px 0;padding:20px 24px;border-radius:16px;background:#fff;border:1px dashed var(--line-2)}
.quiz-cta p{margin:0;font-size:15.5px;color:var(--slate);max-width:470px}
.quiz-cta p b{color:var(--navy)}
.source-note{font-size:13.5px;color:var(--muted);line-height:1.6;border-top:1px solid var(--line);padding-top:18px;margin-top:10px}

/* ---------- Relacionados ---------- */
.related{padding-block:10px 64px}
.related-grid,.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.card{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px 22px 20px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card:hover{transform:translateY(-3px);border-color:var(--line-2);box-shadow:var(--shadow-lg)}
.card .cat{font:600 10.5px/1.3 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--red);margin:0 0 10px}
.card h3{font-size:21px;line-height:1.18;margin:0 0 10px;letter-spacing:-.02em}
.card h3 a{text-decoration:none}
.card h3 a::after{content:"";position:absolute;inset:0;border-radius:18px}
.card p.desc{font-size:14.5px;color:var(--slate);line-height:1.55;margin:0 0 16px;flex:1}
.mini{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-top:auto}
.mini .en{font:800 17px/1.2 var(--display);color:var(--ink);margin:0;letter-spacing:-.015em}
.mini .pron{font:500 12.5px/1.4 var(--mono);color:var(--pron);margin:3px 0 0}
.card-foot{display:flex;justify-content:space-between;align-items:center;margin-top:14px;font:500 12px/1 var(--mono);color:var(--muted)}
.card-foot .go{color:var(--navy);font-weight:600}
.card:hover .card-foot .go{color:var(--red)}
.section-title{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:12px 24px;margin-bottom:24px}
.section-title h2{font-size:clamp(26px,3.2vw,36px);margin:0}

/* ---------- Oferta (igual à landing) ---------- */
.offer{padding:72px 0}
.offer-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:60px;align-items:center}
.offer h2{font-size:clamp(30px,3.8vw,44px);line-height:1.08}
.offer-list{list-style:none;padding:0;margin:26px 0;font-size:15px;color:var(--on-dark)}
.offer-list li{padding:10px 0;border-bottom:1px solid var(--line-dark);display:flex;gap:12px}
.offer-list li::before{content:"✓";color:#A7DDC6;font-weight:700}
.plan{background:#17284A;border:2px solid var(--red);border-radius:20px;padding:34px 30px 28px;position:relative;box-shadow:0 22px 50px -22px rgba(200,16,46,.45)}
.plan-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:#D6E4F0;color:var(--navy);font:700 10.5px/1 var(--mono);letter-spacing:.06em;padding:7px 14px;border-radius:999px;white-space:nowrap;margin:0}
.plan-name{font:800 23px/1.2 var(--display);color:#fff;margin:0 0 4px}
.plan-sub{font-size:14px;color:var(--on-dark-2);margin:0 0 18px}
.plan-price{font:800 46px/1 var(--display);color:#fff;margin:0 0 6px;letter-spacing:-.03em}
.plan-note{font:500 12.5px/1.4 var(--mono);color:#B6C6D6;margin:0 0 22px}
.plan .btn{width:100%}
.plan .btn+.btn{margin-top:10px}
.plan-fine{font-size:13px;color:var(--on-dark-2);text-align:center;margin:16px 0 0}
.on-dark .plan-name,.on-dark .plan-price{color:#fff}
.on-dark .plan-badge{color:var(--navy)}
.on-dark .plan-note{color:#B6C6D6}
.on-dark .demo-cta .title,.demo-cta .title{color:#fff}

/* ---------- Índice do blog ---------- */
.hero-index{padding:64px 0 76px}
.hero-index h1{font-size:clamp(38px,5.4vw,66px)}
.topic-nav{display:flex;flex-wrap:wrap;gap:10px;margin:0;padding:0;list-style:none}
.topic-nav a{display:inline-block;font:700 15px/1.2 var(--display);letter-spacing:-.01em;color:#123152;background:#E3ECF5;border:1px solid #C5D5E5;border-bottom-width:4px;border-radius:10px;padding:10px 14px 9px;text-decoration:none}
.topic-nav a:hover{background:#fff;border-color:var(--red);color:var(--red)}
.index-intro{padding-block:44px 8px}
.index-intro p{color:var(--slate);max-width:640px}
.featured{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:36px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:24px;padding:34px;margin:28px 0 10px;box-shadow:var(--shadow);position:relative}
.featured h2{font-size:clamp(28px,3.2vw,38px);margin:0 0 12px}
.featured h2 a{text-decoration:none}
.featured h2 a::after{content:"";position:absolute;inset:0;border-radius:24px}
.featured p{color:var(--slate)}
.featured .phrase{margin:0;transform:rotate(1.5deg)}
.featured .say{position:relative;z-index:2}
.group{padding-block:34px 10px;scroll-margin-top:84px}
.group-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 16px;margin-bottom:20px}
.group-head h2{font-size:clamp(24px,2.8vw,31px);margin:0}
.group-head p{margin:0;color:var(--slate);font-size:15.5px}
.cards .say{position:relative;z-index:2}
.card-promo{background:radial-gradient(ellipse at 90% 0%,#1A466F 0,transparent 60%),#071828;border-color:#071828;color:#fff}
.card-promo:hover{border-color:var(--red)}
.card-promo .cat{color:var(--red-soft)}
.card-promo h3,.card-promo h3 a{color:#fff}
.card-promo p.desc{color:var(--on-dark-2)}
.card-promo .keys{margin-top:auto}
.card-promo .key{background:#fff}
.card-promo .key.blank{background:transparent;border-color:rgba(255,255,255,.4);color:var(--on-dark-2)}
.card-promo .card-foot{color:var(--on-dark-2)}
.card-promo .card-foot .go,.card-promo:hover .card-foot .go{color:var(--gold)}
.band-quiz{margin:48px 0 0;padding:44px 0}
.band-quiz .wrap{display:grid;grid-template-columns:minmax(0,1.2fr) auto;gap:20px 40px;align-items:center}
.band-quiz h2{font-size:clamp(24px,3vw,34px);margin:0 0 8px}
.band-quiz p{margin:0}

/* ---------- Sobre ---------- */
.editorial{max-width:760px;margin:0 auto;padding-block:56px}
.editorial h2{font-size:28px;margin-top:40px}
.editorial p{color:var(--ink-2)}

/* ---------- Rodapé (igual à landing) ---------- */
.site-foot{border-top:1px solid var(--line);padding:40px 0 40px;background:var(--paper)}
.foot-about{max-width:680px;font-size:13.5px;color:var(--slate);margin:0 0 28px;padding-bottom:28px;border-bottom:1px solid var(--line)}
.foot-row{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.foot-copy{font:500 12px/1.5 var(--mono);color:var(--slate);margin:14px 0 0}
.light-copy{font:500 11.5px/1.6 var(--mono);color:var(--slate);opacity:.75;margin:4px 0 0}
.light-copy .arr{color:var(--red);margin:0 5px}
.foot-links{display:flex;flex-wrap:wrap;gap:10px 22px;list-style:none;margin:0;padding:0}
.foot-links a{text-decoration:none;color:var(--slate);font-size:13.5px}
.foot-links a:hover{color:var(--navy)}
.mobile-cta{display:none}

/* ---------- Responsivo ---------- */
@media (max-width:1040px){
  .article-grid{grid-template-columns:minmax(0,740px);gap:0}
  .toc{display:none}
  .toc-mobile{display:block;margin:0 0 30px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 18px}
  .toc-mobile>summary{cursor:pointer;min-height:52px;display:flex;align-items:center;font:600 12px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--navy)}
  .toc-mobile ol{margin:0 0 14px;padding-left:22px;font-size:15px}
  .toc-mobile a{text-decoration:none;color:var(--slate)}
  .offer-grid{gap:40px}
  .nav-links{gap:18px}
}
@media (max-width:900px){
  .hero-grid,.offer-grid,.featured,.demo-cta{grid-template-columns:minmax(0,1fr)}
  .hero{padding:38px 0 48px}
  .app-card{transform:none;max-width:460px}
  .demo-mock{display:none}
  .related-grid,.cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .nav-links{display:none}
  .band-quiz .wrap{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:700px){
  body{font-size:16.5px}
  .wrap{padding-inline:18px}
  .hero .lead{font-size:16.5px}
  .article-grid{padding-block:34px 20px}
  .body>section{margin-bottom:44px}
  .rows.two,.examples,.vocab,.compare,.phrase-pair{grid-template-columns:minmax(0,1fr)}
  .related-grid,.cards{grid-template-columns:minmax(0,1fr)}
  .row{grid-template-columns:minmax(0,1fr)}
  .row .say{justify-content:flex-start}
  .cola-row{grid-template-columns:minmax(0,1fr)}
  .cola-head{display:none}
  .cola .q{font-size:13px;font-family:var(--mono);letter-spacing:.02em}
  .trio-head{display:none}
  .trio-row{grid-template-columns:minmax(0,1fr)}
  .trio-row>div{border-left:0;border-top:1px dashed var(--line)}
  .trio-row>div:first-child{border-top:0}
  .trio .form{display:block;font:600 10px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
  .line{max-width:100%}
  .story{padding:20px 20px}
  .story-text p{font-size:17.5px}
  .ans{margin-left:0}
  .phrase{padding:18px 18px}
  .quick{padding:18px 18px}
  .demo-cta{padding:24px 20px}
  .featured{padding:22px}
  .featured .phrase{transform:none}
  .offer{padding:52px 0 60px}
  .plan{padding:30px 22px 24px}
  .nav-cta{padding:9px 12px;font-size:13px}
  .logo-word{font-size:15.5px}
  .mobile-cta{display:block;position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;border-top:1px solid var(--line);padding:10px 16px calc(10px + env(safe-area-inset-bottom));box-shadow:0 -8px 24px -12px rgba(11,32,53,.25);transform:translateY(110%);transition:transform .25s ease}
  .mobile-cta.show{transform:none}
  .mobile-cta .btn{width:100%;min-height:46px;padding:12px 16px;font-size:15px}
  .site-foot{padding-bottom:96px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important}
  .app-card,.featured .phrase,.demo-mock{transform:none}
}