/* ajuda/assets/style.css */
:root{--bg:#fff;--soft:#f5f5f7;--surface:#fff;--text:#1d1d1f;--muted:#6e6e73;--line:#d2d2d7;--accent:#0071e3;--accent-hover:#0077ed;--inverse:#fff;--shadow:0 22px 70px rgba(0,0,0,.09);--radius:28px}
[data-theme="dark"]{--bg:#000;--soft:#101010;--surface:#161617;--text:#f5f5f7;--muted:#a1a1a6;--line:#38383a;--accent:#2997ff;--accent-hover:#40a9ff;--inverse:#000;--shadow:0 24px 70px rgba(0,0,0,.45)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Helvetica Neue",Arial,sans-serif;-webkit-font-smoothing:antialiased;transition:background .35s,color .35s}
a{color:inherit;text-decoration:none}
button{font:inherit}
.wrap{width:min(1120px,calc(100% - 40px));margin:auto}

/* Nav */
.nav{position:sticky;top:0;z-index:20;height:60px;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:saturate(180%) blur(18px);border-bottom:1px solid color-mix(in srgb,var(--line) 55%,transparent)}
.nav .wrap{height:100%;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.02em}
.mark{width:28px;height:28px;display:grid;place-items:center;border-radius:9px;background:var(--text);color:var(--inverse);font-size:14px}
.links{display:flex;align-items:center;gap:24px;font-size:13px}
.links a{color:var(--muted);transition:color .2s}
.links a:hover{color:var(--text)}
.theme-toggle{position:relative;overflow:hidden;width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;background:transparent;color:var(--text);cursor:pointer}
.theme-icon{position:absolute;font-size:18px;transition:transform .45s cubic-bezier(.2,.8,.2,1),opacity .3s}
.theme-sun{opacity:0;transform:rotate(-90deg) scale(.4)}
[data-theme="dark"] .theme-moon{opacity:0;transform:rotate(90deg) scale(.4)}
[data-theme="dark"] .theme-sun{opacity:1;transform:none}

/* Botões e componentes base */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:50px;padding:0 24px;border-radius:999px;background:var(--accent);color:#fff;font-size:16px;transition:.2s;border:none;cursor:pointer}
.btn:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn.secondary{background:transparent;color:var(--accent);border:1px solid var(--accent)}
.icon-box{width:52px;height:52px;display:grid;place-items:center;border-radius:16px;background:color-mix(in srgb,var(--accent) 11%,var(--surface));color:var(--accent);font-size:25px}
.eyebrow{margin:0 0 14px;color:var(--accent);font-size:14px;font-weight:700}
.section-title{max-width:790px;margin:0;font-size:clamp(36px,5vw,58px);line-height:1;letter-spacing:-.05em}
.section-copy{max-width:640px;margin:20px 0 0;color:var(--muted);font-size:clamp(17px,2vw,20px);line-height:1.5}

/* Home: busca + grid de categorias */
.help-hero{padding:110px 0 70px;text-align:center}
.help-hero h1{max-width:820px;margin:0 auto;font-size:clamp(44px,7vw,80px);line-height:.98;letter-spacing:-.06em}
.help-hero p{max-width:600px;margin:22px auto 0;color:var(--muted);font-size:clamp(18px,2vw,22px);line-height:1.4}
.search-box{max-width:560px;margin:42px auto 0;display:flex;align-items:center;gap:12px;padding:6px 6px 6px 24px;border:1px solid var(--line);border-radius:999px;background:var(--surface)}
.search-box input{flex:1;border:none;background:none;outline:none;font:inherit;color:var(--text);height:46px}
.search-box button{width:46px;height:46px;border-radius:50%;background:var(--accent);color:#fff;border:none;display:grid;place-items:center;cursor:pointer;flex-shrink:0}
.section{padding:90px 0}
.section.soft{background:var(--soft)}
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:56px}
.category-card{display:block;min-height:210px;padding:28px;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);transition:.25s}
.category-card:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--accent) 45%,var(--line))}
.category-card h3{margin:24px 0 8px;font-size:22px;letter-spacing:-.03em}
.category-card p{margin:0;color:var(--muted);font-size:15px;line-height:1.4}
.category-card small{display:block;margin-top:16px;color:var(--accent);font-weight:700;font-size:13px}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:56px}
.article-card{display:block;padding:26px;min-height:150px;border:1px solid var(--line);background:var(--surface);border-radius:20px;transition:.25s}
.article-card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--accent) 45%,var(--line))}
.article-card b{display:block;font-size:17px;margin-bottom:8px}
.article-card span{color:var(--muted);font-size:14px;line-height:1.4}

/* Listagem de categoria / busca */
.breadcrumb{display:flex;gap:6px;align-items:center;color:var(--muted);font-size:12px;margin-bottom:20px;opacity:.75}
.breadcrumb a:hover{color:var(--text)}
.article-list{margin-top:40px;border-top:1px solid var(--line)}
.article-row{display:flex;align-items:center;gap:20px;padding:26px 4px;border-bottom:1px solid var(--line);transition:.2s}
.article-row:hover{padding-left:10px}
.article-row .icon-box{width:44px;height:44px;font-size:19px;flex-shrink:0}
.article-row h3{margin:0 0 4px;font-size:19px;letter-spacing:-.02em}
.article-row p{margin:0;color:var(--muted);font-size:14px}

/* Página de artigo */
.article-header{padding:80px 0 40px}
.article-header h1{max-width:760px;margin:0;font-size:clamp(34px,5vw,54px);line-height:1.05;letter-spacing:-.045em}
.article-header p{max-width:680px;margin:18px 0 0;color:var(--muted);font-size:19px;line-height:1.45}
.article-meta{margin-top:14px;color:var(--muted);font-size:11px;opacity:.7}
.article-body{max-width:700px;margin:0 auto;padding:0 0 60px;font-size:18px;line-height:1.7}
.article-body h2{margin:44px 0 16px;font-size:28px;letter-spacing:-.03em}
.article-body h3{margin:36px 0 14px;font-size:22px;letter-spacing:-.02em}
.article-body p{margin:0 0 20px;color:var(--text)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;color:var(--text)}
.article-body li{margin:8px 0}
.article-body a{color:var(--accent);text-decoration:underline}
.article-body img{max-width:100%;border-radius:16px;margin:24px 0}
.article-body blockquote{margin:24px 0;padding:4px 0 4px 20px;border-left:3px solid var(--accent);color:var(--muted)}
.article-body figure{margin:28px 0}
.article-body figure iframe{width:100%;aspect-ratio:16/9;border-radius:16px;border:none}
.article-nav{max-width:700px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:14px;padding-top:40px;border-top:1px solid var(--line)}
.article-nav a{padding:20px;border:1px solid var(--line);border-radius:18px;display:block}
.article-nav a:hover{border-color:color-mix(in srgb,var(--accent) 45%,var(--line))}
.article-nav span{display:block;color:var(--muted);font-size:12px;margin-bottom:6px}
.article-nav.only-next{grid-template-columns:1fr}
.article-nav.only-next a{text-align:right}
.feedback-widget{max-width:700px;margin:48px auto 0;padding:26px;border:1px solid var(--line);border-radius:20px;background:var(--soft);text-align:center}
.feedback-widget p{margin:0 0 16px;font-weight:600}
.feedback-actions{display:flex;justify-content:center;gap:10px}
.feedback-actions button{min-height:42px;padding:0 20px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--text);cursor:pointer}
.feedback-actions button:hover{border-color:var(--accent);color:var(--accent)}
.feedback-widget.respondido .feedback-actions{display:none}
.feedback-widget .obrigado{display:none;color:var(--accent);font-weight:600}
.feedback-widget.respondido .obrigado{display:block}
.feedback-widget.respondido p{display:none}

/* Footer */
.footer{padding:50px 0}
.footer .wrap{display:flex;justify-content:space-between;color:var(--muted);font-size:13px}

/* Reveal-on-scroll */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s,transform .7s}
.reveal.visible{opacity:1;transform:none}

@media(max-width:760px){
  .wrap{width:calc(100% - 28px)}
  .links a{display:none}
  .category-grid,.article-grid{grid-template-columns:1fr}
  .article-nav{grid-template-columns:1fr}
  .section{padding:60px 0}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
}