/* Section 3 - #tratamentos (services tabs + card rail + full menu) and fixed #barra selection bar.
   Verbatim from references/source/index.html: lines 154-160 (.secao/.cab shared), 162-223 (tratamentos/menu), 361-364 (escolha-barra), 366-370 (.rv reveal), 373-380 (reduced motion subset). */

/* seções */
.secao { padding: clamp(84px, 11vw, 150px) 0; }
.cab { text-align: center; max-width: 820px; margin: 0 auto clamp(40px, 5vw, 64px); padding: 0 20px; }
.cab h2, .h2 { margin: 0; font-weight: 300; font-size: clamp(36px, 5vw, 68px); line-height: 1.02; letter-spacing: -.04em; }
.cab p { margin: 18px auto 0; color: var(--suave); max-width: 560px; font-size: 17px; }
.escuro-sec { background: var(--tinta); color: var(--marfim); }
.escuro-sec .cab p { color: rgba(247, 241, 238, .72); }

/* serviços: abas + trilho de cartões */
.tratamentos { background: var(--marfim); }
.abas { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; margin: 0 auto 34px; padding: 0 20px; }
.abas button { border: 0; background: transparent; padding: 9px 16px; border-radius: 999px; font-size: 14px; color: var(--suave); transition: background .3s, color .3s; }
.abas button[aria-selected="true"] { background: rgba(28, 22, 23, .08); color: var(--texto); }
.abas button:hover { color: var(--texto); }
@media (max-width: 700px) {
  .abas { flex-wrap: nowrap; justify-content: flex-start; overflow-x: auto; scrollbar-width: none; padding: 0 20px 4px; }
  .abas::-webkit-scrollbar { display: none; }
  .abas button { flex: none; }
}
.trilho { display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: var(--lado); padding: 6px var(--lado) 10px; scrollbar-width: none; }
.trilho::-webkit-scrollbar { display: none; }
.cartao { flex: 0 0 clamp(250px, 24vw, 330px); scroll-snap-align: start; display: flex; flex-direction: column; background: var(--papel); border-radius: var(--borda); overflow: hidden; box-shadow: 0 1px 0 var(--linha); }
.cartao.entra { animation: entra .7s var(--ease) both; animation-delay: calc(var(--i) * 60ms); }
@keyframes entra { from { opacity: 0; transform: translateY(26px); } }
.cartao .m { position: relative; aspect-ratio: 4 / 5; overflow: hidden; background: var(--blush-2); }
.cartao .m img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.cartao:hover .m img { transform: scale(1.04); }
.cartao .m.tipo { display: grid; place-items: center; padding: 28px; text-align: center; background: linear-gradient(160deg, var(--blush-2), var(--blush)); }
.cartao .m.tipo i { position: absolute; width: 92%; left: 4%; bottom: 6%; color: rgba(28, 22, 23, .07); }
.cartao .m.tipo span { position: relative; font-family: var(--serif); font-style: italic; font-size: clamp(34px, 3vw, 44px); line-height: 1.02; color: var(--texto); }
.cartao .t { padding: 18px 18px 14px; display: grid; gap: 6px; flex: 1; align-content: start; }
.cartao h3 { margin: 0; font-weight: 500; font-size: 17px; letter-spacing: -.01em; }
.cartao p { margin: 0; font-size: 14.5px; color: var(--suave); line-height: 1.5; }
.cartao .add { margin: 0 18px 18px; align-self: flex-start; display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--linha); background: transparent; border-radius: 999px; padding: 8px 14px 8px 11px; font-size: 13px; transition: background .3s, color .3s, border-color .3s; }
.cartao .add:hover { border-color: var(--texto); }
.cartao .add[aria-pressed="true"] { background: var(--tinta); color: var(--marfim); border-color: var(--tinta); }
.cartao .add .ico { font-size: 15px; }
.cartao .add .ok { display: none; }
.cartao .add[aria-pressed="true"] .ok { display: block; }
.cartao .add[aria-pressed="true"] .mais { display: none; }
.trilho-pe { display: flex; align-items: center; gap: 20px; margin-top: 26px; }
.progresso { flex: 1; height: 2px; background: var(--linha); position: relative; overflow: hidden; }
.progresso i { position: absolute; inset: 0 auto 0 0; width: 30%; background: var(--texto); transition: transform .2s linear, width .3s; }
.setas { display: flex; gap: 8px; }
.setas button { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--linha); background: var(--papel); display: grid; place-items: center; transition: background .3s, color .3s; }
.setas button:hover { background: var(--tinta); color: var(--marfim); }
.setas .ico { font-size: 18px; }

/* todos os serviços: cardápio em acordeão */
.menu { margin-top: clamp(64px, 8vw, 110px); }
.menu-cab { display: flex; justify-content: space-between; align-items: flex-end; gap: 10px 24px; flex-wrap: wrap; margin-bottom: 22px; }
.menu-cab h3 { margin: 0; font-weight: 300; font-size: clamp(30px, 3.6vw, 46px); letter-spacing: -.035em; line-height: 1.05; }
.menu-cab p { margin: 0; color: var(--suave); font-size: 15px; }
.menu-grade { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 clamp(20px, 3vw, 44px); align-items: start; }
.menu details { border-top: 1px solid var(--linha); }
.menu summary { list-style: none; display: flex; align-items: center; gap: 12px; padding: 18px 0; cursor: pointer; font-size: 17px; letter-spacing: -.01em; line-height: 1.3; }
.menu summary::-webkit-details-marker { display: none; }
.menu summary .n { font-family: var(--serif); font-style: italic; font-size: 19px; color: var(--rosa); min-width: 22px; }
.menu summary small { margin-left: auto; color: var(--suave); font-size: 13px; font-variant-numeric: tabular-nums; }
.menu summary .ico { font-size: 18px; transition: transform .4s var(--ease); }
.menu details[open] summary .ico { transform: rotate(45deg); }
.menu ul { list-style: none; margin: 0 0 16px; padding: 0 0 0 34px; }
.menu .item { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 12px; text-align: left; border: 0; background: none; padding: 7px 0; font-size: 15px; line-height: 1.4; }
.menu .item .ico { font-size: 16px; color: var(--suave); }
.menu .item .ok, .menu .item[aria-pressed="true"] .mais { display: none; }
.menu .item[aria-pressed="true"] { font-weight: 500; }
.menu .item[aria-pressed="true"] .ok { display: block; color: var(--texto); }
.menu .item:hover span { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--rosa); }
@media (max-width: 980px) { .menu-grade { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .menu-grade { grid-template-columns: 1fr; } }

/* barra da escolha (aparece com 1+ serviço) */
.escolha-barra { position: fixed; left: 50%; bottom: max(16px, env(safe-area-inset-bottom)); z-index: 40; transform: translate(-50%, 160%); transition: transform .6s var(--ease); display: flex; align-items: center; gap: 18px; background: var(--tinta); color: var(--marfim); padding: 8px 8px 8px 22px; border-radius: 999px; box-shadow: 0 20px 50px -14px rgba(0, 0, 0, .5); font-size: 14.5px; white-space: nowrap; }
.escolha-barra.ver { transform: translate(-50%, 0); }
.escolha-barra .btn { min-height: 42px; padding: 0 20px; border-radius: 999px; font-size: 11.5px; }

/* revelar ao rolar (shared .rv; also used by other sections - dedupe on assembly) */
.rv { opacity: 0; transform: translateY(34px); transition: opacity 1s var(--ease), transform 1s var(--ease); transition-delay: calc(var(--d, 0) * 90ms); }
.rv.visto { opacity: 1; transform: none; }

@keyframes surge { from { opacity: 0; } }
@media (prefers-reduced-motion: reduce) {
  .cartao.entra { transform: none; animation-name: surge; animation-fill-mode: both; }
  .rv { transform: none; }
}