/* Hero B · Quarenta anéis — Dr. Afrânio Bernardes */
:root{
  /* cor: noite castanha + madeira do consultório */
  --b-noite:#120a06;
  --b-noite-2:#1d110a;
  --b-castanho:#3a2114;
  --b-brasa:#5c3018;
  --b-grafite:#2b2622;
  --b-cerne:#945c3b;
  --b-mel:#cd7d36;
  --b-mel-claro:#e3a763;
  --b-creme:#f2ebe3;
  --b-creme-suave:#d3c2ad;
  --b-tinta:#20100a;
  --b-rubrica:#9f1804;
  /* tipografia */
  --b-serif:"Sorts Mill Goudy","Goudy Old Style",Georgia,serif;
  --b-sans:"Golos Text",system-ui,-apple-system,"Segoe UI",sans-serif;
  --b-t-titulo:clamp(2.2rem,1.05rem + 4.6vw,5.1rem);
  --b-t-apoio:clamp(1rem,.93rem + .32vw,1.2rem);
  --b-t-mini:.875rem;
  /* espaço */
  --b-margem:clamp(1rem,5vw,4.5rem);
  --b-passo:clamp(.9rem,.6rem + 1vw,1.6rem);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body.b-pagina{margin:0;background:var(--b-noite);color:var(--b-creme);font-family:var(--b-sans);font-size:1rem;line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:clip}
.b-pagina a{color:inherit}
.b-pagina img{display:block;max-width:100%;height:auto}

.b-hero{position:relative;isolation:isolate;min-height:100vh;min-height:100svh;overflow:clip;display:flex;flex-direction:column;background:var(--b-noite)}

/* ---------- malha de fundo: noite castanha ---------- */
.b-malha{position:absolute;inset:0;z-index:0;overflow:hidden}
.b-malha i{position:absolute;border-radius:50%;will-change:transform}
.b-malha i:nth-child(1){width:95vmax;height:95vmax;left:28%;top:-30%;background:radial-gradient(circle in oklab,#4a2712 0%,#2a160c 38%,transparent 68%);animation:b-deriva-1 34s ease-in-out infinite alternate}
.b-malha i:nth-child(2){width:80vmax;height:80vmax;left:-32%;top:22%;background:radial-gradient(circle in oklab,#2b2019 0%,#1d130d 40%,transparent 70%);animation:b-deriva-2 40s ease-in-out infinite alternate}
.b-malha i:nth-child(3){width:70vmax;height:70vmax;right:-22%;bottom:-38%;background:radial-gradient(circle in oklab,#5c3018 0%,#2d170c 42%,transparent 70%);animation:b-deriva-3 28s ease-in-out infinite alternate}
.b-malha i:nth-child(4){width:46vmax;height:46vmax;left:8%;top:-24%;background:radial-gradient(circle in oklab,#3a2114 0%,transparent 66%);opacity:.8;animation:b-deriva-2 31s ease-in-out infinite alternate-reverse}
@keyframes b-deriva-1{to{transform:translate3d(-6%,7%,0) scale(1.08)}}
@keyframes b-deriva-2{to{transform:translate3d(8%,-5%,0) scale(1.1)}}
@keyframes b-deriva-3{to{transform:translate3d(-7%,-6%,0) scale(.94)}}

/* ---------- o tronco ---------- */
.b-tronco{position:absolute;z-index:1;left:0;top:0;width:0;height:0;pointer-events:none}
.b-madeira{position:absolute;inset:0;width:100%;height:100%;display:block}
.b-sombra{position:absolute;inset:4%;border-radius:50%;background:radial-gradient(circle,rgba(0,0,0,.62) 0%,rgba(0,0,0,.5) 58%,rgba(0,0,0,0) 72%);transform:translate(1.5%,3%) scale(1.06);opacity:0;transition:opacity 2.4s ease 1.2s}
.b-tronco.b-pronto .b-sombra{opacity:1}

/* o gradiente vive dentro da madeira */
.b-luz{position:absolute;inset:0;overflow:hidden;mix-blend-mode:soft-light;opacity:0;transition:opacity 3s ease;-webkit-mask-size:100% 100%;mask-size:100% 100%;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}
.b-tronco.b-pronto .b-luz{opacity:1}
.b-luz i{position:absolute;border-radius:50%;will-change:transform}
.b-luz i:nth-child(1){width:62%;height:62%;left:34%;top:4%;background:radial-gradient(circle in oklab,rgba(255,226,170,.85) 0%,rgba(255,200,130,.35) 40%,transparent 68%);animation:b-brasa-1 26s ease-in-out infinite alternate}
.b-luz i:nth-child(2){width:56%;height:56%;left:22%;top:40%;background:radial-gradient(circle in oklab,rgba(159,24,4,.5) 0%,rgba(148,60,20,.24) 42%,transparent 68%);animation:b-brasa-2 33s ease-in-out infinite alternate}
.b-luz i:nth-child(3){width:48%;height:48%;left:48%;top:44%;background:radial-gradient(circle in oklab,rgba(255,238,205,.6) 0%,rgba(240,190,120,.2) 45%,transparent 68%);animation:b-brasa-3 21s ease-in-out infinite alternate}
@keyframes b-brasa-1{to{transform:translate3d(-22%,26%,0) scale(1.15)}}
@keyframes b-brasa-2{to{transform:translate3d(30%,-24%,0) scale(.9)}}
@keyframes b-brasa-3{to{transform:translate3d(-26%,-30%,0) scale(1.2)}}

/* frases sobre os arcos */
.b-arcos{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.b-arcos text{opacity:0;transition:opacity 1.4s ease}
.b-tronco.b-vivo .b-arcos text{opacity:1}
.b-arcos .b-frase{font-family:var(--b-serif);font-style:italic;fill:var(--b-tinta);paint-order:stroke;stroke:rgba(240,190,128,.42);stroke-width:3.2px;stroke-linejoin:round;letter-spacing:.012em}
.b-arcos .b-quem{font-family:var(--b-sans);font-weight:500;fill:var(--b-tinta);fill-opacity:.86;paint-order:stroke;stroke:rgba(240,190,128,.34);stroke-width:2.6px;stroke-linejoin:round;letter-spacing:.05em}

/* rótulos de ano */
.b-anos{position:absolute;inset:0}
.b-ano{position:absolute;display:flex;align-items:center;gap:0;height:0;white-space:nowrap;opacity:0;transition:opacity .9s ease}
.b-tronco.b-vivo .b-ano{opacity:1}
.b-ano::before{content:"";flex:none;width:7px;height:7px;margin-left:-3.5px;border-radius:50%;background:var(--b-creme);box-shadow:0 0 0 3px rgba(18,10,6,.42),0 0 10px rgba(255,226,170,.6)}
.b-ano i{flex:none;width:16px;height:1px;background:rgba(242,235,227,.75)}
.b-ano span{display:inline-flex;align-items:baseline;gap:.5em;padding:.2em .7em .24em;border-radius:3px;background:rgba(18,10,6,.8);border:1px solid rgba(242,235,227,.2);font-size:var(--b-t-mini);line-height:1.3;color:var(--b-creme-suave);letter-spacing:.02em}
.b-ano b{font-weight:600;color:var(--b-creme);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.b-ano.b-esq{flex-direction:row-reverse;transform:translateX(-100%)}
.b-ano.b-esq::before{margin-left:0;margin-right:-3.5px}

/* véu: garante o título sobre a madeira */
.b-veu{position:absolute;inset:0;z-index:2;pointer-events:none;background:linear-gradient(90deg,rgba(18,10,6,.86) 0%,rgba(18,10,6,.8) 30%,rgba(18,10,6,.42) 42%,rgba(18,10,6,0) 54%)}

/* ---------- topo ---------- */
.b-topo{position:relative;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding:clamp(.75rem,2vh,1.4rem) var(--b-margem) 0}
.b-marca{flex:none;display:flex;align-items:center;gap:.8rem;text-decoration:none;min-height:48px}
.b-no{flex:none;width:3.4rem;height:3.4rem;border-radius:50%;overflow:hidden;box-shadow:0 0 0 1px rgba(227,167,99,.9),0 0 0 4px rgba(18,10,6,.9),0 0 0 5px rgba(205,125,54,.5),0 0 0 9px rgba(18,10,6,.6),0 0 0 10px rgba(205,125,54,.22)}
.b-no img{width:100%;height:100%;object-fit:cover;max-width:none}
.b-marca-texto{display:flex;flex-direction:column;line-height:1.25}
.b-marca-texto strong{font-family:var(--b-serif);font-weight:400;font-size:1.3rem;letter-spacing:.005em;color:var(--b-creme)}
.b-reg{font-size:var(--b-t-mini);color:var(--b-creme-suave);letter-spacing:.02em}
.b-reg span{white-space:nowrap}
.b-ponto2{font-style:normal}
.b-nav{display:flex;gap:clamp(.4rem,1.6vw,1.6rem)}
.b-nav a{white-space:nowrap;display:inline-flex;align-items:center;min-height:48px;padding:0 .35rem;font-size:.95rem;text-decoration:none;color:var(--b-creme);text-shadow:0 1px 10px rgba(18,10,6,.9);position:relative}
.b-nav a::after{content:"";position:absolute;left:.35rem;right:.35rem;bottom:12px;height:1px;background:var(--b-mel-claro);transform:scaleX(0);transform-origin:left;transition:transform .35s ease}
.b-nav a:hover::after,.b-nav a:focus-visible::after{transform:scaleX(1)}

/* ---------- texto ---------- */
.b-texto{position:relative;z-index:3;flex:1;display:flex;flex-direction:column;justify-content:center;padding:var(--b-passo) var(--b-margem) clamp(1.5rem,5vh,3.5rem);max-width:min(47rem,50vw)}
.b-sobre{margin:0 0 var(--b-passo);display:flex;align-items:center;gap:.8rem;font-size:var(--b-t-mini);letter-spacing:.14em;text-transform:uppercase;color:var(--b-mel-claro)}
.b-sobre::before{content:"";width:2.2rem;height:1px;background:currentColor;opacity:.7}
.b-titulo{margin:0;font-family:var(--b-serif);font-weight:400;font-size:var(--b-t-titulo);line-height:1.02;letter-spacing:-.012em;color:var(--b-creme);text-wrap:balance;text-shadow:0 2px 28px rgba(18,10,6,.75)}
.b-apoio{margin:calc(var(--b-passo)*1.1) 0 0;max-width:31em;font-size:var(--b-t-apoio);line-height:1.55;color:var(--b-creme-suave)}
.b-acoes{margin-top:calc(var(--b-passo)*1.5);display:flex;flex-wrap:wrap;align-items:center;gap:.4rem 1.6rem}
.b-botao{display:inline-flex;align-items:center;justify-content:center;gap:.7rem;min-height:54px;padding:0 1.7rem;border-radius:999px;background:linear-gradient(180deg in oklab,#ecb777,#d9934a);color:var(--b-tinta) !important;font-weight:600;font-size:1.02rem;text-decoration:none;box-shadow:0 1px 0 rgba(255,240,215,.55) inset,0 12px 34px -12px rgba(205,125,54,.7);transition:transform .3s ease,box-shadow .3s ease}
.b-botao svg{transition:transform .3s ease}
.b-botao:hover{transform:translateY(-2px);box-shadow:0 1px 0 rgba(255,240,215,.55) inset,0 18px 40px -12px rgba(205,125,54,.85)}
.b-botao:hover svg{transform:translateX(3px)}
.b-segunda{display:inline-flex;align-items:center;min-height:48px;font-size:1rem;color:var(--b-creme);text-decoration:underline;text-decoration-color:rgba(227,167,99,.7);text-underline-offset:.35em;text-decoration-thickness:1px}
.b-segunda:hover{text-decoration-color:var(--b-mel-claro)}
.b-botao:focus-visible,.b-segunda:focus-visible,.b-nav a:focus-visible,.b-marca:focus-visible{outline:2px solid var(--b-creme);outline-offset:4px}

.b-prova{margin-top:calc(var(--b-passo)*2.1);display:flex;align-items:center;gap:1.4rem;padding-top:calc(var(--b-passo)*1.1);border-top:1px solid rgba(242,235,227,.16);max-width:35rem}
.b-nota{margin:0;display:flex;align-items:center;gap:.7rem;flex:none}
.b-nota strong{font-family:var(--b-serif);font-weight:400;font-size:2.7rem;line-height:1;color:var(--b-mel-claro)}
.b-nota span{font-size:var(--b-t-mini);line-height:1.35;color:var(--b-creme-suave)}
.b-ponto{display:none;font-style:normal}
.b-voz{margin:0;padding-left:1.4rem;border-left:1px solid rgba(242,235,227,.16)}
.b-voz blockquote{margin:0;font-family:var(--b-serif);font-style:italic;font-size:1.2rem;line-height:1.3;color:var(--b-creme)}
.b-voz figcaption{margin-top:.3rem;font-size:var(--b-t-mini);color:var(--b-creme-suave);letter-spacing:.03em}

/* granulado */
.b-grao{position:absolute;inset:0;z-index:4;pointer-events:none;opacity:.055;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1.1 -.1'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* entrada do texto (só CSS: nada depende de script) */
.b-topo,.b-sobre,.b-titulo,.b-apoio,.b-acoes,.b-prova{animation:b-sobe 1s cubic-bezier(.2,.7,.2,1) both}
.b-topo{animation-name:b-surge;animation-delay:.05s}
.b-sobre{animation-delay:.15s}
.b-titulo{animation-delay:.25s}
.b-apoio{animation-delay:.5s}
.b-acoes{animation-delay:.7s}
.b-prova{animation-delay:.95s}
@keyframes b-sobe{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@keyframes b-surge{from{opacity:0}to{opacity:1}}

/* ---------- tablet e celular: os anéis sobem de baixo ---------- */
@media (max-width:999px){
  .b-hero{min-height:max(100svh,40rem)}
  .b-veu{background:linear-gradient(180deg,rgba(18,10,6,.5) 0%,rgba(18,10,6,.28) 45%,rgba(18,10,6,0) 62%)}
  .b-topo{flex-direction:column;align-items:stretch;gap:.1rem;padding-top:.7rem}
  .b-no{width:2.9rem;height:2.9rem;box-shadow:0 0 0 1px rgba(227,167,99,.9),0 0 0 4px rgba(18,10,6,.9),0 0 0 5px rgba(205,125,54,.45)}
  .b-marca-texto strong{font-size:1.18rem}
  .b-reg{display:flex;flex-direction:column;line-height:1.3}
  .b-ponto2{display:none}
  .b-nav{justify-content:space-between;gap:.2rem;margin:0 -.35rem}
  .b-nav a{font-size:.9rem}
  .b-texto{flex:none;max-width:40rem;justify-content:flex-start;padding-top:.9rem;padding-bottom:0}
  .b-sobre{display:none}
  .b-titulo{font-size:clamp(2.05rem,9.7vw,4rem);line-height:1.03}
  .b-apoio{margin-top:.8rem;line-height:1.48}
  .b-acoes{margin-top:1.1rem;gap:.2rem 1.2rem}
  .b-botao{min-height:52px;padding:0 1.5rem}
  .b-segunda{display:none}
  .b-prova{margin-top:.75rem;padding-top:0;border-top:0}
  .b-nota strong{font-size:1.5rem}
  .b-nota span br{display:none}
  .b-ponto{display:inline !important}
  .b-nota span{font-size:var(--b-t-mini)}
  .b-voz{display:none}
  .b-acoes{align-items:center}
  .b-hero::after{content:"";display:block;flex:1;min-height:min(84vw,21rem)}
}
@media (max-width:999px) and (min-width:600px){
  .b-topo{flex-direction:row;align-items:center}
  .b-nav{margin:0}
  .b-voz{display:block}
  .b-texto{padding-top:2.2rem}
  .b-reg{display:inline}
  .b-ponto2{display:inline}
  .b-hero::after{min-height:24rem}
}

@media (prefers-reduced-motion:reduce){
  .b-pagina *,.b-pagina *::before,.b-pagina *::after{animation-duration:.01ms !important;animation-delay:0s !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;transition-delay:0s !important}
}