/* ================================================================
   BUTTERFLY — SEÇÕES 03–05 + BARRA FIXA MOBILE
   03 .bfb — Experiência na pele (benefícios editoriais, sem cards)
   04 .bfi — Informações do produto (a seção mais clara da página)
   05 .bfc — Conversão (fechamento emocional, R$ 99 + CTA)
   Ritmo: scroll natural + reveals (IntersectionObserver via .is-revealed).
   Hierarquia: produto > mensagem > informação > atmosfera > decoração.
   ================================================================ */

/* ---------- reveal genérico (JS adiciona .is-revealed no pai/elemento) ---------- */
.bf-reveal {
    opacity: 0; transform: translateY(22px);
    transition: opacity 0.85s var(--bf-ease), transform 0.85s var(--bf-ease);
}
.is-revealed.bf-reveal,
.is-revealed .bf-reveal { opacity: 1; transform: none; }
/* stagger dentro de cada seção — coreografia:
   título → frasco (sobe + fade) → halo/reflexo → benefícios → atmosfera */
.is-revealed .bfb__flask-wrap { transition-delay: 0.2s; }
.is-revealed .bfb__item--1 { transition-delay: 0.55s; }
.is-revealed .bfb__item--2 { transition-delay: 0.7s; }
.is-revealed .bfb__item--3 { transition-delay: 0.85s; }
.is-revealed .bfb__item--4 { transition-delay: 1s; }
.is-revealed .bfi__media { transition-delay: 0.15s; }
.is-revealed .bfi__content { transition-delay: 0.3s; }

/* atmosfera entra por último (halo, reflexo, névoa, pétalas, brilhos) */
.bfb__glow, .bfb__ground, .bfb__mist, .bfb__petal, .bfb__spark {
    opacity: 0; transition: opacity 1.2s var(--bf-ease);
}
.is-revealed .bfb__glow { opacity: 1; transition-delay: 0.35s; }
.is-revealed .bfb__ground { opacity: 1; transition-delay: 0.45s; }
.is-revealed .bfb__mist--l { opacity: 0.4; transition-delay: 1.1s; }
.is-revealed .bfb__mist--r { opacity: 0.34; transition-delay: 1.25s; }
.is-revealed .bfb__petal { opacity: 0.75; transition-delay: 1.15s; }
.is-revealed .bfb__petal--c { opacity: 0.55; transition-delay: 1.3s; }
.is-revealed .bfb__spark { opacity: 1; transition-delay: 1.2s; }

/* eyebrow compartilhado das seções */
.bf-eyebrow {
    display: block; font-family: var(--bf-font-sans);
    font-size: clamp(11px, 1vw, 13px); font-weight: 600; letter-spacing: 0.24em;
    text-transform: uppercase; color: var(--bf-pink); margin-bottom: 14px;
}

/* ================================================================
   03 · BENEFÍCIOS — .bfb ("A experiência na pele")
   Atmosfera delicada: luz difusa, rosa atrás do produto, toque azul,
   névoa nas extremidades inferiores. Produto = fotografia publicitária.
   ================================================================ */
.bfb {
    position: relative; overflow: hidden;
    /* nasce do rosa do fim da S02, luz difusa central, azul quase
       imperceptível no alto-direito, blush na base */
    background:
        radial-gradient(44% 38% at 50% 52%, rgba(249, 190, 214, 0.30) 0%, rgba(249, 190, 214, 0) 72%),
        radial-gradient(30% 24% at 86% 6%, rgba(189, 228, 245, 0.20) 0%, rgba(189, 228, 245, 0) 62%),
        radial-gradient(40% 30% at 8% 96%, rgba(247, 175, 200, 0.24) 0%, rgba(247, 175, 200, 0) 64%),
        linear-gradient(180deg, #fdeef4 0%, #fffafc 32%, #fdf5f8 100%);
    padding: clamp(84px, 12vh, 150px) clamp(20px, 5vw, 72px) clamp(72px, 10vh, 130px);
}
.bfb__head { text-align: center; max-width: 760px; margin: 0 auto clamp(36px, 5vh, 64px); }
.bfb__title {
    font-family: var(--bf-font-serif); font-size: clamp(34px, 4.2vw, 60px);
    font-weight: 500; line-height: 1.08; color: var(--bf-ink); margin: 0;
}

.bfb__scene {
    position: relative; max-width: 1120px; margin: 0 auto;
    min-height: clamp(500px, 72vh, 680px);
    display: flex; align-items: center; justify-content: center;
}

/* halo luminoso grande e difuso atrás do frasco */
.bfb__glow {
    position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
    width: min(52vw, 640px); height: min(52vw, 640px); pointer-events: none;
    background: radial-gradient(circle,
        rgba(255, 255, 255, 0.85) 0%,
        rgba(249, 190, 214, 0.30) 42%,
        rgba(249, 190, 214, 0) 70%);
}
/* névoa rosada nas extremidades inferiores (moldura, não sticker) */
.bfb__mist { position: absolute; pointer-events: none; height: auto; filter: blur(5px); }
.bfb__mist--l { left: -9%; bottom: -10%; width: clamp(240px, 25vw, 380px); }
.bfb__mist--r { right: -8%; bottom: -12%; width: clamp(220px, 22vw, 340px); }
/* brilhos microscópicos */
.bfb__spark {
    position: absolute; display: block; border-radius: 50%; pointer-events: none;
    background: radial-gradient(circle, rgba(255,255,255,0.95) 0%, rgba(255,214,231,0.5) 45%, transparent 70%);
    animation: bfbTwinkle 6s ease-in-out infinite;
}
.bfb__spark--1 { left: 27%; top: 24%; width: 7px; height: 7px; }
.bfb__spark--2 { right: 24%; top: 60%; width: 5px; height: 5px; animation-delay: 2s; animation-duration: 8s; }
.bfb__spark--3 { left: 40%; bottom: 16%; width: 6px; height: 6px; animation-delay: 4s; animation-duration: 7s; }
@keyframes bfbTwinkle { 0%,100% { transform: scale(0.8); } 50% { transform: scale(1.25); } }

/* FRASCO — protagonista, fotografia publicitária (sobe ao revelar) */
.bfb__flask-wrap { position: relative; z-index: 3; }
.bf-reveal.bfb__flask-wrap { transform: translateY(28px); transition-duration: 1.3s; }
.is-revealed .bfb__flask-wrap { transform: none; }
.bfb__flask {
    display: block; height: clamp(420px, 64vh, 600px); width: auto;
    filter: drop-shadow(0 30px 56px rgba(198, 100, 140, 0.30));
    animation: bfbBreath 9s ease-in-out infinite;
}
@keyframes bfbBreath { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-4px); } }
/* sombra de contato + reflexo inferior (luz, não pedestal) */
.bfb__ground {
    position: absolute; left: 50%; bottom: clamp(2%, 4vh, 6%);
    transform: translateX(-50%); pointer-events: none;
    width: min(40vw, 480px); height: 84px;
    background:
        radial-gradient(46% 42% at 50% 40%, rgba(120, 60, 90, 0.16) 0%, rgba(120, 60, 90, 0) 72%),
        radial-gradient(60% 100% at 50% 100%, rgba(255, 235, 245, 0.8) 0%, rgba(255, 235, 245, 0) 74%);
    filter: blur(7px);
}

/* wrapper neutro no desktop (vira grade 2x2 no mobile) */
.bfb__items { display: contents; }

/* benefício editorial: número pink + título caps + linha + serif itálica */
.bfb__item { position: absolute; max-width: 240px; z-index: 4; }
.bfb__item i {
    display: block; font-family: var(--bf-font-sans); font-style: normal;
    font-size: 11px; font-weight: 600; letter-spacing: 0.2em; color: var(--bf-pink);
    margin-bottom: 8px;
}
.bfb__item h3 {
    position: relative; font-family: var(--bf-font-sans);
    font-size: clamp(14px, 1.15vw, 16px); font-weight: 600; letter-spacing: 0.22em;
    text-transform: uppercase; color: var(--bf-ink); margin: 0 0 10px;
}
.bfb__item p {
    font-family: var(--bf-font-serif); font-style: italic;
    font-size: clamp(16px, 1.3vw, 18px); font-weight: 500; line-height: 1.55;
    color: var(--bf-text); margin: 0;
}
/* hairline gráfica em direção ao produto (não precisa tocá-lo) */
.bfb__item h3::after {
    content: ""; position: absolute; top: 50%; width: clamp(34px, 3.6vw, 58px); height: 1px;
    background: linear-gradient(90deg, rgba(231,46,114,0.45), rgba(231,46,114,0));
}
.bfb__item--1, .bfb__item--2 { text-align: right; }
.bfb__item--1 h3::after, .bfb__item--2 h3::after { left: calc(100% + 14px); }
.bfb__item--3 h3::after, .bfb__item--4 h3::after {
    right: calc(100% + 14px);
    background: linear-gradient(270deg, rgba(231,46,114,0.45), rgba(231,46,114,0));
}
/* composição pertencente ao produto: sup-esq / inf-esq / sup-dir / inf-dir */
.bfb__item--1 { left: 4%; top: 16%; }
.bfb__item--2 { left: 6%; bottom: 18%; }
.bfb__item--3 { right: 6%; top: 22%; }
.bfb__item--4 { right: 4%; bottom: 12%; }

/* pétalas: 2 evidentes + 1 desfocada em primeiro plano (deriva lenta) */
.bfb__petal { position: absolute; pointer-events: none; z-index: 5; }
.bfb__petal--a { left: 31%; top: 8%; width: clamp(28px, 2.8vw, 42px); transform: rotate(-18deg); animation: bfbDriftA 9s ease-in-out infinite; }
.bfb__petal--b { right: 30%; top: 30%; width: clamp(22px, 2.2vw, 34px); transform: rotate(24deg); animation: bfbDriftB 11s ease-in-out infinite; }
.bfb__petal--c { left: 24%; bottom: 6%; width: clamp(44px, 4.4vw, 68px); filter: blur(2.5px); transform: rotate(38deg); animation: bfbDriftA 13s ease-in-out infinite; }
@keyframes bfbDriftA { 0%,100% { translate: 0 0; } 50% { translate: 8px 12px; } }
@keyframes bfbDriftB { 0%,100% { translate: 0 0; } 50% { translate: -10px 9px; } }

/* ================================================================
   04 · INFORMAÇÕES — .bfi
   Editorial de perfumaria: produto grande à esquerda dentro de uma
   forma orgânica de luz; ficha vertical à direita com hairlines.
   Continuidade: mesmo rosa/branco da .bfb (sem corte entre seções).
   ================================================================ */
.bfi {
    position: relative; overflow: hidden;
    background:
        radial-gradient(26% 22% at 90% 4%, rgba(189, 228, 245, 0.18) 0%, rgba(189, 228, 245, 0) 60%),
        radial-gradient(34% 26% at 4% 96%, rgba(247, 175, 200, 0.22) 0%, rgba(247, 175, 200, 0) 62%),
        linear-gradient(180deg, #fdf5f8 0%, #fffcfd 44%, #fdf4f8 100%);
    padding: clamp(76px, 11vh, 140px) clamp(20px, 5vw, 72px);
}
/* brilhos raríssimos (não competem com a informação) */
.bfi__spark {
    position: absolute; display: block; border-radius: 50%; pointer-events: none;
    background: radial-gradient(circle, rgba(255,255,255,0.9) 0%, rgba(255,214,231,0.4) 48%, transparent 70%);
}
.bfi__spark--1 { left: 12%; top: 18%; width: 6px; height: 6px; }
.bfi__spark--2 { right: 9%; bottom: 22%; width: 5px; height: 5px; }

/* borboletas decorativas — mesmo voo da .bfc (keyframes bfcFly);
   z-index 0 + grid elevado: nunca cobrem texto nem frasco */
.bfi__bfly { position: absolute; z-index: 0; height: auto; pointer-events: none; }
.bfi__bfly--a { left: 6%; top: 11%; width: clamp(52px, 5.4vw, 88px); opacity: 0.9; animation: bfcFly 10s ease-in-out infinite; }
.bfi__bfly--b { right: 7%; top: 24%; width: clamp(34px, 3.6vw, 58px); opacity: 0.8; animation: bfcFly 13s ease-in-out infinite reverse; }
.bfi__bfly--c { left: 30%; bottom: 9%; width: clamp(38px, 4vw, 62px); opacity: 0.7; filter: blur(2px); animation: bfcFly 15s ease-in-out infinite; }

.bfi__grid {
    position: relative; z-index: 1;
    max-width: 1120px; margin: 0 auto;
    display: grid; grid-template-columns: 42fr 58fr;
    grid-template-areas: "media head" "media content";
    grid-template-rows: auto 1fr;
    align-items: center; column-gap: clamp(36px, 6vw, 96px);
}
.bfi__head { grid-area: head; align-self: end; }
.bfi__media { grid-area: media; }
.bfi__content { grid-area: content; align-self: start; }

/* ESQUERDA — produto dentro de forma orgânica de luz (sem caixa) */
.bfi__media { position: relative; display: flex; justify-content: center; padding: clamp(28px, 5vh, 56px) 0; }
.bfi__media::before {
    content: ""; position: absolute; left: 50%; top: 50%;
    transform: translate(-50%, -50%) rotate(-8deg);
    width: min(30vw, 400px); height: min(34vw, 470px); z-index: 0;
    background: radial-gradient(60% 60% at 50% 44%,
        rgba(255, 255, 255, 0.9) 0%,
        rgba(249, 190, 214, 0.34) 52%,
        rgba(249, 190, 214, 0) 76%);
    border-radius: 58% 42% 55% 45% / 52% 48% 42% 58%;
    filter: blur(18px);
}
/* sombra de contato + reflexo sob o frasco */
.bfi__media::after {
    content: ""; position: absolute; left: 50%; bottom: clamp(4px, 1.6vh, 18px);
    transform: translateX(-50%);
    width: min(20vw, 250px); height: 44px; z-index: 0;
    background: radial-gradient(50% 46% at 50% 42%, rgba(120, 60, 90, 0.15) 0%, rgba(120, 60, 90, 0) 72%);
    filter: blur(6px);
}
/* luz e sombra do media apagam junto do frasco na transição 06→07
   (pseudo-elementos não são tween-áveis → CSS var controlada pelo GSAP) */
.bfi__media::before,
.bfi__media::after { opacity: var(--bfi-glow, 1); }
.bfi__flask {
    position: relative; z-index: 1;
    display: block; height: clamp(380px, 58vh, 560px); width: auto;
    filter: drop-shadow(0 26px 50px rgba(198, 100, 140, 0.26));
}

/* DIREITA — título + ficha vertical editorial */
.bfi__title {
    font-family: var(--bf-font-serif); font-size: clamp(32px, 3.8vw, 54px);
    font-weight: 500; line-height: 1.08; color: var(--bf-ink);
    margin: 0 0 clamp(24px, 4vh, 40px);
}
.bfi__specs { margin: 0; }
.bfi__row {
    padding: clamp(16px, 2.4vh, 24px) 0;
    border-bottom: 1px solid rgba(41, 35, 41, 0.07);
}
.bfi__row:first-child { padding-top: 0; }
.bfi__row dt {
    font-family: var(--bf-font-sans); font-size: clamp(11px, 1vw, 13px);
    font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase;
    color: rgba(74, 62, 68, 0.8);
    margin-bottom: 7px;
}
.bfi__row dd {
    margin: 0; font-family: var(--bf-font-serif);
    font-size: clamp(19px, 1.7vw, 24px); font-weight: 500; color: var(--bf-ink);
}

/* NOTAS — fechamento da narrativa olfativa (destaque, sem cards) */
.bfi__row--notes { border-bottom: 0; padding-bottom: 0; }
.bfi__row--notes dt { color: var(--bf-pink); margin-bottom: 14px; }
.bfi__row--notes dd { display: flex; flex-direction: column; gap: clamp(9px, 1.4vh, 13px); }
.bfi__row--notes dd span { display: flex; align-items: center; gap: 12px; }
.bfi__row--notes dd i {
    font-family: var(--bf-font-sans); font-style: normal;
    font-size: 11px; font-weight: 600; letter-spacing: 0.14em; color: var(--bf-pink);
}
/* micro detalhe de direção de arte ao lado de cada nota */
.bfi__acc { width: clamp(18px, 1.7vw, 24px); height: auto; opacity: 0.85; }

/* ================================================================
   05 · CONVERSÃO — .bfc
   ================================================================ */
.bfc {
    position: relative; overflow: hidden; isolation: isolate;
    min-height: 100svh;
    display: flex; align-items: center; justify-content: center;
    padding: clamp(84px, 12vh, 140px) 20px clamp(64px, 9vh, 110px);
}
/* atmosfera do Hero recuperada com controle (foto + véu de legibilidade) */
.bfc__bg {
    position: absolute; inset: 0; z-index: 0;
    background: url('../assets/butterfly-02/fundo-ceu-borboletas.webp') center / cover no-repeat;
}
.bfc__veil {
    position: absolute; inset: 0; z-index: 1;
    background:
        radial-gradient(64% 74% at 50% 54%, rgba(255, 250, 252, 0.78) 0%, rgba(255, 250, 252, 0.42) 55%, rgba(255, 250, 252, 0.1) 100%),
        linear-gradient(180deg, rgba(253, 246, 249, 0.9) 0%, rgba(255, 250, 252, 0) 22%);
}
/* halo radial barato atrás do produto (z2 — abaixo da .bfc__inner z3).
   `translate` (propriedade) em vez de transform: o scale do GSAP na
   transição 06→07 compõe sem brigar (mesmo truque dos bfbDriftA/B). */
.bfc__halo {
    position: absolute; z-index: 2; left: 50%; top: 50%; translate: -50% -50%;
    width: min(58vw, 640px); height: min(58vw, 640px);
    pointer-events: none; opacity: 0.7;   /* estático sem JS / reduced-motion */
    background: radial-gradient(circle, rgba(255,255,255,0.85) 0%, rgba(249,190,214,0.32) 46%, rgba(249,190,214,0) 72%);
}
.bfc__bfly { position: absolute; z-index: 2; pointer-events: none; }
.bfc__bfly--a { left: 12%; top: 20%; width: clamp(54px, 6vw, 92px); animation: bfcFly 9s ease-in-out infinite; }
.bfc__bfly--b { right: 14%; top: 58%; width: clamp(40px, 4.6vw, 68px); animation: bfcFly 12s ease-in-out infinite reverse; }
.bfc__petal { position: absolute; z-index: 2; right: 24%; top: 16%; width: clamp(30px, 3.2vw, 48px); pointer-events: none; animation: bfcPetal 14s ease-in-out infinite; }
@keyframes bfcFly { 0%,100% { transform: translate(0,0) rotate(0deg); } 50% { transform: translate(14px,-16px) rotate(5deg); } }
@keyframes bfcPetal { 0%,100% { transform: translate(0,0) rotate(18deg); } 50% { transform: translate(-12px,18px) rotate(34deg); } }

.bfc__inner {
    position: relative; z-index: 3;
    display: flex; flex-direction: column; align-items: center; text-align: center;
}
.bfc__line {
    font-family: var(--bf-font-serif); font-size: clamp(26px, 2.8vw, 42px);
    font-weight: 500; font-style: italic; line-height: 1.18;
    color: var(--bf-ink); margin: 0 0 clamp(18px, 3vh, 30px);
}
.bfc__flask {
    display: block; height: clamp(260px, 37vh, 370px); width: auto;
    margin-bottom: clamp(16px, 2.4vh, 26px);
    filter: drop-shadow(0 28px 56px rgba(198, 100, 140, 0.34));
}
.bfc__name {
    font-family: var(--bf-font-serif); font-size: clamp(34px, 3.6vw, 54px);
    font-weight: 500; letter-spacing: 0.06em; color: var(--bf-ink); margin: 0 0 6px;
}
.bfc__family {
    font-family: var(--bf-font-sans); font-size: clamp(11px, 1vw, 13px);
    font-weight: 600; letter-spacing: 0.24em; text-transform: uppercase;
    color: var(--bf-pink); margin-bottom: clamp(16px, 2.6vh, 26px);
}
/* preço — unidade tipográfica: R$ e 99 na MESMA linha de base
   (flex baseline; nada de sup/expoente). Grafite + detalhe champagne. */
.bfc__price {
    display: flex; align-items: baseline; justify-content: center; gap: 8px;
    line-height: 1; margin-bottom: clamp(16px, 2.6vh, 26px);
}
.bfc__price-cur {
    font-family: var(--bf-font-sans); font-size: clamp(15px, 1.6vw, 22px);
    font-weight: 600; letter-spacing: 0.06em; color: var(--bf-gold-dark);
}
.bfc__price-num {
    font-family: var(--bf-font-serif); font-size: clamp(46px, 5.2vw, 72px);
    font-weight: 600; color: var(--bf-ink);
}
.bfc__cta {
    font-size: clamp(13px, 1.1vw, 15px);
    padding: 18px clamp(36px, 4vw, 52px);
    box-shadow: 0 14px 40px rgba(231, 46, 114, 0.34);
}
.bfc__micro {
    font-family: var(--bf-font-sans); font-size: 11.5px; font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase; color: rgba(41, 35, 41, 0.7);
    margin-top: 16px;
}

.bfb__spark,
.bfb__flask,
.bfb__petal,
.bfi__bfly,
.bfc__bfly,
.bfc__petal { animation-play-state: paused; }
.bfb.is-motion-active .bfb__spark,
.bfb.is-motion-active .bfb__flask,
.bfb.is-motion-active .bfb__petal,
.bfi.is-motion-active .bfi__bfly,
.bfc.is-motion-active .bfc__bfly,
.bfc.is-motion-active .bfc__petal { animation-play-state: running; }

/* ================================================================
   PONTES DE TRANSIÇÃO — .bf-bridge (criadas por js/butterfly-transitions.js)
   Coordenadas de documento; z50: acima das seções, abaixo de
   jornada (60) / sticky (90) / header (100).
   ================================================================ */
.bf-bridge {
    position: absolute; left: 0; top: 0; z-index: 50;
    height: auto; pointer-events: none;
}
.bf-bridge--flask { filter: drop-shadow(0 26px 50px rgba(198, 100, 140, 0.28)); }

/* ================================================================
   BARRA DE COMPRA FIXA — .bf-sticky (somente mobile)
   ================================================================ */
.bf-sticky {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
    display: none;                       /* desktop: nunca aparece */
    align-items: center; justify-content: space-between; gap: 12px;
    min-height: 54px;
    padding: 8px clamp(14px, 4vw, 20px);
    padding-bottom: calc(8px + env(safe-area-inset-bottom));
    background: rgba(255, 249, 250, 0.9);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    box-shadow: 0 -1px 0 rgba(41, 35, 41, 0.07), 0 -10px 30px rgba(41, 35, 41, 0.06);
    transform: translateY(105%); opacity: 0; pointer-events: none;
    transition: transform 0.45s var(--bf-ease), opacity 0.45s var(--bf-ease);
}
.bf-sticky.is-visible { transform: translateY(0); opacity: 1; pointer-events: auto; }
.bf-sticky__info { display: flex; flex-direction: column; justify-content: center; gap: 3px; line-height: 1; min-width: 0; }
.bf-sticky__brand {
    font-family: var(--bf-font-sans); font-size: 11px; font-weight: 600;
    letter-spacing: 0.2em; text-transform: uppercase; color: rgba(41, 35, 41, 0.85);
    white-space: nowrap;
}
/* preço da sticky: sans firme, leitura instantânea (serif fina não) */
.bf-sticky__price { font-family: var(--bf-font-sans); font-size: 17px; font-weight: 700; letter-spacing: 0.02em; color: var(--bf-ink); }
.bf-sticky__btn {
    flex-shrink: 0; font-family: var(--bf-font-sans);
    font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
    padding: 12px 22px; border-radius: 50px; text-decoration: none;
    transition: transform 0.3s var(--bf-ease), box-shadow 0.3s var(--bf-ease);
    /* respiração discreta (só mobile; desligada em reduced-motion) */
    animation: bfCtaBreath 4s ease-in-out infinite;
    animation-play-state: paused;
}
.bf-sticky.is-visible .bf-sticky__btn { animation-play-state: running; }
.bf-sticky__btn:hover, .bf-sticky__btn:focus-visible {
    transform: translateY(-1px);
    outline: none;
}
@keyframes bfCtaBreath {
    0%, 100% { scale: 1; }
    50% { scale: 1.015; }
}
@media (max-width: 768px) { .bf-sticky { display: flex; } }

/* ================================================================
   MOBILE (≤768) — cada seção definida explicitamente
   ================================================================ */
@media (max-width: 768px) {
    /* 03 — eyebrow → título → frasco → benefícios em grade 2x2 */
    .bfb { padding: clamp(64px, 10vh, 96px) 22px clamp(56px, 8vh, 84px); }
    .bfb__scene { flex-direction: column; min-height: 0; }
    .bfb__glow { width: min(96vw, 440px); height: min(96vw, 440px); top: 24%; }
    .bfb__flask-wrap { margin-bottom: clamp(30px, 5vh, 46px); }
    .bfb__flask { height: clamp(300px, 40svh, 380px); }
    .bfb__ground { bottom: auto; top: calc(24% + clamp(150px, 20svh, 190px)); width: 64vw; height: 60px; }

    .bfb__items {
        display: grid; grid-template-columns: 1fr 1fr;
        gap: clamp(24px, 5vw, 36px) clamp(18px, 5vw, 30px);
        width: 100%; max-width: 480px;
    }
    .bfb__item { position: static; max-width: none; text-align: left !important; }
    .bfb__item i { margin-bottom: 6px; }
    .bfb__item h3 { font-size: 13px; letter-spacing: 0.18em; margin-bottom: 8px; }
    .bfb__item h3::after { display: none; }
    .bfb__item p { font-size: clamp(15.5px, 4.3vw, 17px); }

    /* atmosfera reduzida: 2 pétalas, 1 névoa, 1 brilho */
    .bfb__petal--a { left: 7%; top: 12%; }
    .bfb__petal--b { display: none; }
    .bfb__petal--c { left: auto; right: 5%; bottom: auto; top: 46%; }
    .bfb__mist--r { display: none; }
    .bfb__mist--l { left: -16%; bottom: -3%; width: clamp(200px, 56vw, 280px); }
    .bfb__spark--2 { display: none; }

    /* 04 — eyebrow/título → frasco → ficha vertical → notas */
    .bfi { padding: clamp(60px, 9vh, 90px) 22px; }
    .bfi__grid {
        grid-template-columns: 1fr;
        grid-template-areas: "head" "media" "content";
        grid-template-rows: auto auto auto;
        row-gap: 8px;
    }
    .bfi__head { text-align: center; align-self: auto; }
    .bfi__media { padding: clamp(16px, 3vh, 30px) 0 clamp(22px, 4vh, 36px); }
    .bfi__media::before { width: min(74vw, 330px); height: min(84vw, 380px); }
    .bfi__flask { height: clamp(300px, 40svh, 370px); }
    .bfi__title { margin-bottom: 4px; }
    .bfi__row dd { font-size: clamp(18px, 4.9vw, 21px); }
    .bfi__acc { width: 20px; }
    /* borboletas: cantos, fora do fluxo do texto; a desfocada sai */
    .bfi__bfly--a { left: 4%; top: 5%; width: clamp(44px, 12vw, 60px); }
    .bfi__bfly--b { right: 5%; top: 34%; width: clamp(30px, 8vw, 42px); }
    .bfi__bfly--c { display: none; }

    /* 05 — composição vertical compacta; respiro para a barra fixa */
    .bfc { padding-bottom: calc(72px + env(safe-area-inset-bottom)); }
    .bfc__bg { background-image: url('../assets/butterfly-02/fundo-ceu-borboletas-m.webp'); }
    .bfc__flask { height: clamp(240px, 34svh, 320px); }
    .bfc__bfly--a { left: 6%; top: 14%; }
    .bfc__bfly--b { right: 6%; top: 64%; }

    /* respiros: nada fica sob a barra fixa (~62px) + jornada global (74px).
       .bfc: a sticky some lá, mas a jornada permanece → 96px */
    .bfb, .bfi { padding-bottom: calc(env(safe-area-inset-bottom) + 110px); }
    .bfc { padding-bottom: calc(96px + env(safe-area-inset-bottom)); }
}

/* ================================================================
   ACESSIBILIDADE — reduced motion: tudo estático e legível
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
    .bf-reveal { opacity: 1; transform: none; transition: none; }
    .bfc__bfly--a, .bfc__bfly--b, .bfc__petal, .bfi__bfly { animation: none; }
    .bfb__flask, .bfb__petal, .bfb__spark { animation: none; }
    .bfb__glow, .bfb__ground, .bfb__mist--l, .bfb__mist--r { opacity: 1; transition: none; }
    .bfb__petal { opacity: 0.75; }
    .bfb__spark { opacity: 1; }
    .bf-sticky { transition: none; }
    .bf-sticky__btn { animation: none; transition: none; }
    .bf-cta--gold::before { animation: none; transition: none; }
}