/* The Sciatica Notebook. Fiel ao esboço aprovado na apresentação de 08/10/2026:
   Spectral + Public Sans + IBM Plex Mono, fundo "bone", faixa escura no topo, índigo para marca e respostas,
   "nerve" (terracota) só em botão de compra e no fio que desce da lombar ao pé. Folha lisa, sem pauta. */
:root{
  --bone:#F1F3F6; --sheet:#FFFFFF; --ink:#1B2030; --ink-2:#596173;
  --indigo:#35407A; --indigo-soft:#E4E7F3; --line:#C9CEDB; --line-soft:#E2E5ED;
  --nerve:#BF4D36; --nerve-hover:#A8412C; --nerve-soft:#F8E6E1;
  --amber:#8A5A00; --amber-bg:#FBF1DD;
  --display:"Spectral", Georgia, "Times New Roman", serif;
  --body:"Public Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono:"IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{background:var(--bone);color:var(--ink);font-family:var(--body);font-size:18px;line-height:1.7;margin:0}
@media (max-width:600px){body{font-size:17px}}
a{color:var(--indigo);text-underline-offset:3px}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--nerve);outline-offset:2px}
img{max-width:100%;height:auto;display:block}
h1,h2,h3{font-family:var(--display);text-wrap:balance;line-height:1.18;margin:0;font-weight:700}
p{margin:0 0 14px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:var(--sheet);padding:8px 12px;z-index:50}
.wrap{max-width:1120px;margin:0 auto;padding-inline:16px}
.col{max-width:760px;margin:0 auto}
.eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--nerve);font-weight:600}

/* topo: uma faixa escura com o nome e o menu */
.site-head{background:var(--ink);color:var(--bone)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:10px 24px;flex-wrap:wrap;padding-block:14px}
.logo{text-decoration:none;color:var(--bone);font-family:var(--display);font-weight:700;font-size:1.3rem;line-height:1}
.site-head nav{display:flex;gap:18px;flex-wrap:wrap}
.site-head nav a{color:#C9CEDB;text-decoration:none;font-size:.88rem;font-weight:600}
.site-head nav a:hover{color:var(--bone)}
@media (max-width:760px){.site-head nav{flex-wrap:nowrap;overflow-x:auto;white-space:nowrap;width:100%;gap:16px;padding-bottom:2px}}

/* botões */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:12px 22px;border-radius:6px;font-weight:700;text-decoration:none;font-size:1rem;line-height:1.3;text-align:center}
.btn-cta{background:var(--nerve);color:#fff}
.btn-cta:hover{background:var(--nerve-hover)}
.btn-main{background:var(--indigo);color:#fff}
.btn-main:hover{background:#2A3364}
.btn-ghost{border:2px solid var(--indigo);color:var(--indigo);background:transparent}

/* home: a dor desce pela perna; cada parada é uma pergunta */
.hero{padding-block:48px 28px}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:40px;align-items:end}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr;gap:24px}}
.hero h1{font-size:clamp(2.1rem,5.4vw,3.4rem);line-height:1.08;margin:8px 0 16px;letter-spacing:-.01em}
.hero .lead{font-size:1.1rem;color:var(--ink-2);max-width:56ch}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px}
.hello{border-top:3px solid var(--indigo);padding-top:16px}
.hello .who{display:flex;gap:14px;align-items:center;margin-bottom:10px}
.hello img{width:72px;height:72px;border-radius:50%;object-fit:cover}
.hello b{font-family:var(--display);font-size:1.15rem;display:block}
.hello small{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:var(--ink-2)}
.hello p{font-size:.98rem;color:var(--ink-2);margin:0}
section.block{padding-block:36px 8px}
section.block h2{font-size:clamp(1.5rem,3vw,2rem);margin:6px 0 22px}
.qlist{position:relative;display:grid;gap:0;padding-left:34px;max-width:820px}
.qlist::before{content:"";position:absolute;left:9px;top:10px;bottom:10px;width:3px;background:linear-gradient(var(--nerve),var(--indigo));border-radius:3px}
.qlist a{position:relative;display:grid;gap:2px;padding:14px 0 16px;border-bottom:1px solid var(--line-soft);text-decoration:none}
.qlist a::before{content:"";position:absolute;left:-31px;top:22px;width:13px;height:13px;border-radius:50%;background:var(--sheet);border:3px solid var(--nerve)}
.qlist a b{font-family:var(--display);font-size:1.15rem;color:var(--ink)}
.qlist a span{font-size:.94rem;color:var(--ink-2)}
.qlist a:hover b{color:var(--indigo);text-decoration:underline;text-underline-offset:4px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:18px}
.card{display:grid;grid-template-columns:112px minmax(0,1fr);gap:14px;align-items:center;background:var(--sheet);border:1px solid var(--line);border-radius:6px;padding:10px;text-decoration:none;color:var(--ink)}
.card img{width:112px;height:84px;object-fit:cover;border-radius:4px}
.card .t h3{font-size:1.02rem;margin:2px 0 4px}
.card .t p{font-size:.86rem;color:var(--ink-2);margin:0;line-height:1.45}
.card:hover h3{color:var(--indigo)}
.strip{margin-top:44px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.strip .wrap{padding-block:30px;display:grid;grid-template-columns:auto minmax(0,1fr);gap:20px;align-items:center;max-width:820px}
.strip img{width:64px;height:64px;border-radius:50%;object-fit:cover}
.strip blockquote{margin:0;font-family:var(--display);font-style:italic;font-size:clamp(1.15rem,2.4vw,1.45rem);line-height:1.4}
.strip cite{display:block;font-style:normal;font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);margin-top:8px}

/* artigo: folha branca lisa, como no esboço */
main.article{padding-block:8px 24px}
.crumb{font-family:var(--mono);font-size:.74rem;color:var(--ink-2);padding-block:22px 12px}
.crumb a{color:var(--ink-2)}
.ruled{background:var(--sheet);border:1px solid var(--line);border-radius:8px;padding:32px 36px 36px}
@media (max-width:600px){.ruled{padding:22px 18px 26px}}
.post h1{font-size:clamp(1.9rem,5vw,2.6rem);margin:0 0 14px;line-height:1.15}
.byline{font-size:.88rem;color:var(--ink-2);display:flex;align-items:center;gap:10px;flex-wrap:wrap;line-height:1.5}
.byline img{width:34px;height:34px;border-radius:50%;object-fit:cover}
.byline a{color:var(--ink);font-weight:600}
.disclosure{font-size:.84rem;color:var(--ink-2);margin-top:12px;line-height:1.5;padding-bottom:14px;border-bottom:1px solid var(--line-soft)}
figure{max-width:360px;margin:24px auto}
figure img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;border-radius:4px}
figcaption{font-family:var(--mono);font-size:.72rem;color:var(--ink-2);margin-top:6px;line-height:1.4}
.post h2{font-size:1.6rem;margin:42px 0 10px;line-height:1.22}
.post h3{font-size:1.2rem;margin:26px 0 6px}
.post ul,.post ol{padding-left:1.3em;margin:0 0 16px}
.post li{margin-bottom:6px}
.qa{background:var(--indigo-soft);border-left:4px solid var(--indigo);padding:14px 18px;border-radius:0 4px 4px 0;margin:24px 0;line-height:1.65}
.qa .lbl{font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--indigo);font-weight:600;margin-bottom:4px}
.qa p{margin:0}
.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:4px;background:var(--sheet);margin:18px 0}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:.9rem;line-height:1.5}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line-soft);vertical-align:top}
th{font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);background:var(--bone)}
.nb{border-left:3px solid var(--nerve);background:var(--nerve-soft);padding:16px 20px;margin:34px 0;border-radius:0 4px 4px 0;line-height:1.65}
.nb .lbl{font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--nerve);font-weight:600;margin-bottom:6px}
.nb p:last-child{margin-bottom:0}
.pick{border:1px solid var(--line);border-radius:4px;padding:18px 20px;margin:28px 0;line-height:1.6;display:grid;gap:8px}
.pick .eyebrow{color:var(--ink-2)}
.pick h3{font-size:1.25rem;margin:0}
.pick ul{margin:0 0 6px;padding-left:1.2em}
.pick li{line-height:1.55}
.pick .btn{width:100%}
.pick .small{font-size:.84rem;color:var(--ink-2);margin:4px 0 0;line-height:1.5}
.next{border-top:3px solid var(--indigo);padding-top:14px;margin:36px 0;line-height:1.5}
.next ul{list-style:none;padding:0;margin:10px 0 0;display:grid;gap:12px}
.next li{margin:0}
.next a{font-family:var(--display);font-weight:700;font-size:1.08rem;text-decoration:none}
.next span{display:block;font-size:.9rem;color:var(--ink-2)}
.faq details{border-bottom:1px solid var(--line);padding-block:12px;line-height:1.6}
.faq summary{cursor:pointer;font-weight:700;font-size:1.02rem;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--nerve)}
.faq details[open] summary::after{content:"\2212"}
.faq details p{margin:10px 0 0}
.author{display:grid;grid-template-columns:80px minmax(0,1fr);gap:18px;align-items:start;border-top:1px solid var(--line);padding-top:22px;margin-top:40px;line-height:1.55}
.author img{width:80px;height:80px;border-radius:50%;object-fit:cover}
.author b{font-family:var(--display);font-size:1.12rem}
.author p{font-size:.94rem;margin:6px 0 0;color:var(--ink-2)}
@media (max-width:520px){.author{grid-template-columns:1fr}}
.alarm{font-size:.92rem;background:var(--amber-bg);color:var(--amber);padding:10px 14px;border-radius:4px;margin-top:20px}

/* rodapé */
.site-foot{margin-top:56px;background:var(--ink);color:var(--bone)}
.site-foot .wrap{padding-block:34px;display:grid;gap:16px;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr)}
@media (max-width:760px){.site-foot .wrap{grid-template-columns:1fr}}
.foot-brand p{font-size:.9rem;color:#C9CEDB;margin:8px 0 0}
.foot-brand a:not(.logo){color:var(--bone)}
.site-foot .disc{font-size:.88rem;color:#C9CEDB;margin:0}
.site-foot nav{display:flex;gap:16px;flex-wrap:wrap;grid-column:1/-1}
.site-foot nav a{color:var(--bone);font-size:.88rem}
.site-foot small{font-size:.82rem;color:#A0A7B8;grid-column:1/-1}
@media (prefers-reduced-motion: reduce){*{transition:none!important}}

/* review: compra, veredito, garantia, fatos */
.buy{border:2px solid var(--indigo);border-radius:6px;padding:20px;margin:28px 0;line-height:1.55;background:var(--sheet)}
.buy-top{display:grid;grid-template-columns:130px minmax(0,1fr);gap:16px;align-items:center;margin-bottom:12px}
.buy-top img{width:130px;height:auto}
.buy h3{font-size:1.25rem;margin:4px 0 6px}
.buy .small{font-size:.88rem;color:var(--ink-2);margin:0}
.buy .tbl table{min-width:480px}
.buy tr.best td{background:var(--nerve-soft)}
.buy td span{font-size:.82rem;color:var(--ink-2)}
.buy .btn{width:100%;margin:6px 0 10px}
@media (max-width:520px){.buy-top{grid-template-columns:1fr}.buy-top img{width:110px}}
.verdict{background:var(--indigo-soft);border-radius:6px;padding:18px 20px;margin:28px 0;line-height:1.6;display:grid;gap:8px}
.verdict .score{font-family:var(--display);font-size:1.7rem;font-weight:700;color:var(--indigo);margin:0}
.verdict .btn{justify-self:start}
.guarantee{background:var(--sheet);border:2px solid var(--nerve);border-radius:6px;padding:18px 22px;margin:28px 0;line-height:1.6}
.guarantee h3{font-size:1.25rem;margin:0 0 8px}
.guarantee ul{margin:8px 0 12px;padding-left:1.2em}
.guarantee li{margin-bottom:6px}
.facts{border:1px solid var(--line);border-radius:4px;margin:22px 0;overflow:hidden}
.facts dl{display:grid;grid-template-columns:minmax(110px,32%) minmax(0,1fr);margin:0}
.facts dt,.facts dd{padding:9px 14px;border-bottom:1px solid var(--line-soft);margin:0;line-height:1.5;font-size:.93rem}
.facts dt{font-family:var(--mono);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);background:var(--bone)}
.sources{font-size:.88rem;line-height:1.55;color:var(--ink-2)}
.sources li{margin-bottom:6px}
.small{font-size:.86rem;color:var(--ink-2)}