/* Hipótese B · Tinta mágica — Dra. Letícia Fitipaldi */



/* ---------- navegação ---------- */
.bh-nav {
  position: absolute; top: 0; left: 0; right: 0;
  z-index: 20;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--margem);
  animation: bh-sobe .9s cubic-bezier(.2,.7,.2,1) .05s both;
}
.bh-marca { text-decoration: none; display: grid; line-height: 1.15; }
.bh-marca-nome { font-family: var(--f-titulo); font-weight: 600; font-size: 1.12rem; letter-spacing: .005em; }
.bh-marca-sub { font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--texto-suave); margin-top: 3px; }
.bh-links { display: flex; gap: clamp(.9rem, 2vw, 1.8rem); align-items: center; font-size: .88rem; }
.bh-links a { text-decoration: none; opacity: .86; transition: opacity .2s; }
.bh-links a:hover { opacity: 1; }
.bh-nav-zap {
  border: 1px solid color-mix(in oklab, var(--rosa-claro) 55%, transparent);
  padding: .5rem 1rem; border-radius: 99px;
}

/* ---------- hero ---------- */
.bh {
  position: relative;
  isolation: isolate;
  min-height: max(100svh, 680px);
  display: grid;
  grid-template-columns: minmax(0, 43fr) minmax(0, 57fr);
  grid-template-rows: 1fr auto auto 1fr;
  column-gap: clamp(1rem, 2vw, 2rem);
  padding: calc(var(--nav-h) + 1rem) 0 clamp(2rem, 5vh, 3.5rem) var(--margem);
  overflow: hidden;
}

/* malha: manchas radiais grandes que respiram */
.bh-malha { position: absolute; inset: 0; z-index: -1; overflow: hidden;
  background:
    radial-gradient(80% 70% at 15% 10% in oklab, #3d1c24, transparent 70%),
    radial-gradient(60% 60% at 90% 100% in oklab, #341820, transparent 70%),
    var(--noite);
}
.bh-malha i { position: absolute; display: block; border-radius: 50%; will-change: transform; }
.bh-malha i:nth-child(1) {
  width: 95vmax; height: 95vmax; right: -30vmax; top: -30vmax;
  background: radial-gradient(circle closest-side in oklch, color-mix(in oklab, var(--rosa) calc(22% + var(--revelado) * 14%), transparent), transparent);
  animation: bh-deriva-1 34s ease-in-out infinite alternate;
}
.bh-malha i:nth-child(2) {
  width: 85vmax; height: 70vmax; left: -30vmax; bottom: -42vmax;
  background: radial-gradient(closest-side in oklch, color-mix(in oklab, var(--gengiva) 34%, transparent), transparent);
  animation: bh-deriva-2 28s ease-in-out infinite alternate;
}
.bh-malha i:nth-child(3) {
  width: 60vmax; height: 60vmax; left: 18vw; top: 10vh;
  background: radial-gradient(circle closest-side in oklab, color-mix(in oklab, var(--vinho-claro) 55%, transparent), transparent);
  animation: bh-deriva-3 38s ease-in-out infinite alternate;
}
@keyframes bh-deriva-1 { to { transform: translate(-6vmax, 5vmax) scale(1.08); } }
@keyframes bh-deriva-2 { to { transform: translate(8vmax, -4vmax) scale(1.12); } }
@keyframes bh-deriva-3 { to { transform: translate(-5vmax, 7vmax) scale(.9); } }

/* ---------- texto ---------- */
.bh-texto { grid-column: 1; position: relative; z-index: 3; max-width: 36rem; }
.bh-texto-1 { grid-row: 2; }
.bh-texto-2 { grid-row: 3; }

.bh-sobre {
  margin: 0 0 var(--e-3);
  font-size: var(--t-rotulo); letter-spacing: .16em; text-transform: uppercase; font-weight: 500;
  color: var(--rosa-claro);
  display: flex; align-items: center; gap: .6rem;
  animation: bh-sobe .9s cubic-bezier(.2,.7,.2,1) .15s both;
}
.bh-ponto {
  width: .55rem; height: .55rem; border-radius: 50%; flex: none;
  background: radial-gradient(circle at 35% 35%, #ffd3e4, var(--rosa) 60%);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--rosa) 22%, transparent);
}
.bh-titulo {
  margin: 0;
  font-family: var(--f-titulo);
  font-weight: 500;
  font-size: var(--t-titulo);
  line-height: 1.02;
  letter-spacing: -.012em;
  text-wrap: balance;
}
.bh-titulo span, .bh-titulo em { display: block; }
.bh-l1 { animation: bh-sobe 1s cubic-bezier(.2,.7,.2,1) .25s both; }
.bh-l2 {
  font-style: italic; font-weight: 600;
  color: var(--rosa-claro);
  margin-top: .08em;
  animation: bh-sobe 1s cubic-bezier(.2,.7,.2,1) .45s both;
}

.bh-fala {
  margin: var(--e-4) 0 0;
  padding-left: 1.1rem;
  border-left: 2px solid color-mix(in oklab, var(--rosa) 70%, transparent);
  animation: bh-sobe .9s cubic-bezier(.2,.7,.2,1) .7s both;
}
.bh-fala p {
  margin: 0;
  font-family: var(--f-titulo); font-style: italic; font-weight: 500;
  font-size: var(--t-fala); line-height: 1.42;
  color: var(--esmalte);
}
.bh-apoio {
  margin: var(--e-2) 0 0;
  color: var(--texto-suave);
  max-width: 31rem;
  animation: bh-sobe .9s cubic-bezier(.2,.7,.2,1) .8s both;
}
.bh-acoes {
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--e-2) var(--e-3);
  margin-top: var(--e-3);
  animation: bh-sobe .9s cubic-bezier(.2,.7,.2,1) .9s both;
}
.bh-botao {
  display: inline-flex; align-items: center; gap: .6rem;
  min-height: 52px; padding: .85rem 1.5rem .85rem 1.25rem;
  border-radius: 99px;
  background: var(--rosa-claro);
  color: var(--noite);
  font-weight: 600; text-decoration: none; font-size: 1rem;
  box-shadow: 0 10px 30px -10px color-mix(in oklab, var(--rosa) 80%, transparent), inset 0 1px 0 rgb(255 255 255 / .45);
  transition: transform .25s cubic-bezier(.2,.7,.2,1), box-shadow .25s, background-color .25s;
}
.bh-botao svg { width: 1.25rem; height: 1.25rem; fill: currentColor; }
.bh-botao:hover { transform: translateY(-2px); background: #f7b0cf; box-shadow: 0 16px 38px -12px color-mix(in oklab, var(--rosa) 90%, transparent), inset 0 1px 0 rgb(255 255 255 / .5); }
.bh-botao:focus-visible, .bh-sec:focus-visible, .bh-links a:focus-visible, .bh-marca:focus-visible { outline: 2px solid var(--rosa-claro); outline-offset: 4px; }
.bh-sec { text-decoration: none; font-weight: 500; font-size: .95rem; border-bottom: 1px solid color-mix(in oklab, var(--esmalte) 35%, transparent); padding-bottom: 2px; }
.bh-sec:hover { border-color: var(--rosa-claro); }

.bh-prova {
  list-style: none; padding: 0; margin: var(--e-4) 0 0;
  display: flex; flex-wrap: wrap; gap: var(--e-2) var(--e-4);
  animation: bh-sobe .9s cubic-bezier(.2,.7,.2,1) 1s both;
}
.bh-prova li { display: grid; gap: 2px; padding-top: .7rem; border-top: 1px solid color-mix(in oklab, var(--esmalte) 22%, transparent); min-width: 12rem; flex: 1 1 12rem; max-width: 17rem; }
.bh-prova b { font-family: var(--f-titulo); font-weight: 600; font-size: 1.05rem; letter-spacing: .02em; color: var(--esmalte); }
.bh-prova span { font-size: .84rem; line-height: 1.35; color: var(--texto-suave); }

/* ---------- palco: lâmina + retrato ---------- */
.bh-palco {
  grid-column: 2; grid-row: 1 / -1;
  position: relative;
  margin: calc(-1 * (var(--nav-h) + 1rem)) 0 calc(-1 * clamp(2rem, 5vh, 3.5rem));
  min-height: 100%;
}
.bh-lamina {
  position: absolute;
  top: calc(var(--nav-h) + .4rem); bottom: clamp(1.4rem, 4vh, 2.6rem);
  left: 16%; right: 0;
  border-radius: var(--raio) 0 0 var(--raio);
  overflow: hidden;
  background: #b9a6a0;
  box-shadow: 0 40px 90px -40px rgb(0 0 0 / .7), 0 0 0 1px rgb(255 255 255 / .06) inset;
  animation: bh-lamina 1.3s cubic-bezier(.2,.7,.2,1) .1s both;
  touch-action: pan-y;
  cursor: none;
}
.bh-lamina-base, .bh-tinta {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: 0% 45%;
}
.bh-tinta { opacity: 0; transition: opacity .6s; }
.bh-tinta.pronta { opacity: 1; }
/* vinheta interna, para a lâmina assentar no escuro */
.bh-lamina::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(to right, color-mix(in oklab, var(--noite) 55%, transparent), transparent 30%),
    linear-gradient(to top, color-mix(in oklab, var(--noite) 45%, transparent), transparent 22%);
}
.bh-rotulo, .bh-dica {
  position: absolute; z-index: 2; margin: 0;
  font-size: var(--t-rotulo); letter-spacing: .04em; line-height: 1.3;
  color: var(--esmalte);
  background: color-mix(in oklab, var(--noite) 62%, transparent);
  -webkit-backdrop-filter: blur(10px) saturate(1.2); backdrop-filter: blur(10px) saturate(1.2);
  border: 1px solid rgb(255 255 255 / .1);
  padding: .5rem .8rem; border-radius: 99px;
  pointer-events: none;
}
.bh-rotulo { top: calc(var(--nav-h) + 1.5rem); right: 1.1rem; z-index: 3; display: flex; align-items: center; gap: .55rem; animation: bh-surge .8s ease 1.2s both; }
.bh-dica { right: 1.1rem; bottom: 1.1rem; animation: bh-surge .8s ease 1.6s both; transition: opacity .6s; }
.bh-dica.some { animation: bh-some .7s ease both; }
@keyframes bh-some { from { opacity: 1; } to { opacity: 0; } }
.bh-dica-toque { display: none; }

.bh-pincel {
  position: absolute; z-index: 3; left: 0; top: 0;
  width: 46px; height: 46px; margin: -23px 0 0 -23px;
  border-radius: 50%;
  border: 1.5px solid rgb(255 255 255 / .85);
  box-shadow: 0 0 0 1px rgb(42 20 24 / .25), 0 0 24px color-mix(in oklab, var(--rosa) 60%, transparent);
  pointer-events: none; opacity: 0;
  transition: opacity .25s, width .25s, height .25s;
}
.bh-pincel::after { content: ""; position: absolute; left: 50%; top: 50%; width: 6px; height: 6px; margin: -3px; border-radius: 50%; background: var(--rosa); }
.bh-pincel.ativo { opacity: 1; }

.bh-ela {
  position: absolute; z-index: 2;
  left: -2%; bottom: 0;
  height: min(92%, 860px);
  aspect-ratio: 700 / 1260;
  pointer-events: none;
  animation: bh-ela 1.4s cubic-bezier(.2,.7,.2,1) .2s both;
}
.bh-retrato {
  width: 100%; height: 100%; object-fit: contain; object-position: bottom;
  filter: drop-shadow(-24px 30px 40px rgb(16 6 9 / .55));
}
/* luz rosa vinda da lâmina, recortada pelo próprio retrato */
.bh-luz {
  position: absolute; inset: 0;
  -webkit-mask: url("../img/b-retrato.webp") bottom / contain no-repeat;
  mask: url("../img/b-retrato.webp") bottom / contain no-repeat;
  background:
    linear-gradient(to left in oklch, color-mix(in oklab, var(--rosa-claro) calc(55% + var(--revelado) * 35%), transparent) 0%, transparent 42%),
    linear-gradient(to top, color-mix(in oklab, var(--noite) 70%, transparent), transparent 18%);
  mix-blend-mode: soft-light;
  opacity: calc(.75 + var(--revelado) * .25);
}
.bh-assina {
  position: absolute; z-index: 4;
  left: 3%; bottom: clamp(1.4rem, 5vh, 3rem);
  margin: 0; display: grid; gap: 1px;
  padding: .55rem .95rem .6rem;
  border-radius: 14px;
  background: color-mix(in oklab, var(--noite) 70%, transparent);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border: 1px solid rgb(255 255 255 / .1);
  font-size: .8rem; line-height: 1.25;
  animation: bh-surge .8s ease 1.3s both;
}
.bh-assina strong { font-family: var(--f-titulo); font-weight: 600; font-size: .98rem; }
.bh-assina span { color: var(--texto-suave); letter-spacing: .06em; font-size: .7rem; text-transform: uppercase; }

/* ---------- entrada ---------- */
@keyframes bh-sobe { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
@keyframes bh-surge { from { opacity: 0; } to { opacity: 1; } }
@keyframes bh-lamina { from { opacity: 0; transform: translateX(4%) scale(.98); } to { opacity: 1; transform: none; } }
@keyframes bh-ela { from { opacity: 0; transform: translateY(5%); } to { opacity: 1; transform: none; } }

/* ---------- notebook baixo ---------- */
@media (min-width: 961px) and (max-height: 760px) {
  :root { --t-titulo: clamp(2rem, 1rem + 3vw, 3.7rem); }
  .bh-fala { margin-top: var(--e-3); }
  .bh-prova { margin-top: var(--e-3); }
}
@media (min-width: 961px) and (max-width: 1200px) {
  :root { --t-titulo: clamp(2.2rem, .6rem + 3.2vw, 3.3rem); --t-fala: .98rem; }
  .bh-fala { margin-top: var(--e-3); }
  .bh-prova { margin-top: var(--e-3); }
  .bh-lamina { left: 20%; }
  .bh-ela { left: -6%; height: min(84%, 760px); }
  .bh-prova li { min-width: 10rem; }
}

/* ---------- celular e tablet ---------- */
@media (max-width: 960px) {
  .bh {
    display: flex; flex-direction: column;
    padding: calc(var(--nav-h) + .4rem) 0 2.5rem;
    min-height: 0;
  }
  .bh-texto { padding: 0 var(--margem); max-width: 40rem; }
  .bh-sobre { margin-bottom: var(--e-2); }
  .bh-palco {
    order: 2;
    margin: 1.4rem 0 0;
    height: clamp(380px, 106vw, 640px);
    min-height: 0;
  }
  .bh-texto-2 { order: 3; display: flex; flex-direction: column; }
  .bh-texto-2 .bh-acoes { order: -1; margin-top: var(--e-3); }
  .bh-lamina { top: 0; bottom: 0; left: 0; border-radius: 0; }
  .bh-ela { left: -3%; height: 100%; }
  .bh-assina { left: var(--margem); bottom: 1rem; }
  .bh-rotulo {
    top: calc(100% + .75rem); left: var(--margem); right: var(--margem);
    padding: 0; background: none; border: 0; border-radius: 0;
    -webkit-backdrop-filter: none; backdrop-filter: none;
    color: var(--texto-suave);
  }
  .bh-texto-2 { margin-top: 2.6rem; }
  .bh-dica { right: .8rem; top: .8rem; bottom: auto; }
  .bh-fala { margin-top: var(--e-3); }
  .bh-prova { gap: var(--e-2) var(--e-3); }
  .bh-links a:not(.bh-nav-zap) { display: none; }
}
@media (max-width: 960px), (hover: none) {
  .bh-dica-mouse { display: none; }
  .bh-dica-toque { display: inline; }
  .bh-lamina { cursor: auto; }
}
@media (max-width: 420px) {
  .bh-marca-nome { font-size: 1rem; }
  .bh-marca-sub { font-size: .64rem; }
  .bh-nav-zap { padding: .45rem .85rem; }
  .bh-dica { font-size: .68rem; }
  .bh-botao { width: 100%; justify-content: center; }
}

/* ---------- movimento reduzido ---------- */
@media (prefers-reduced-motion: reduce) {
  .bh-malha i { animation: none !important; }
}