/* =========================================================
   STUDIO AURA — modelo estética
   Cores da "aurora": troque --c1..--c4
   ========================================================= */
:root {
  --c1: #8b9cff;   /* azul lilás */
  --c2: #c084fc;   /* lilás */
  --c3: #f472b6;   /* rosa */
  --c4: #fb923c;   /* pêssego */

  --g1: linear-gradient(135deg, var(--c1), var(--c2));
  --g2: linear-gradient(135deg, var(--c2), var(--c3));
  --g3: linear-gradient(135deg, var(--c3), var(--c4));

  --bg: #fbfaf7;
  --bg-tint: #f4f1ec;
  --card: #ffffff;
  --ink: #1b1a19;
  --muted: #6f6b66;
  --line: #e9e5df;

  --r: 20px;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --ease-spring: cubic-bezier(.34, 1.56, .64, 1);
  --container: 1180px;
  --serif: "Instrument Serif", Georgia, serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
html, body { overflow-x: clip; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 16px/1.6 "Inter", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
h1, h2, h3 { margin: 0; letter-spacing: -0.035em; line-height: 1.05; font-weight: 600; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
em { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -0.01em; }
.icon { width: 18px; height: 18px; flex: none; }
.container { width: min(100% - 32px, var(--container)); margin-inline: auto; }
.muted { color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
:focus-visible { outline: 2px solid var(--c2); outline-offset: 3px; border-radius: 8px; }

/* ---------- botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 40px; padding: 0 16px; border-radius: 10px; font-weight: 500; font-size: 15px; white-space: nowrap;
  transition: transform .3s var(--ease), background .2s, box-shadow .3s;
}
.btn:active { transform: scale(.96); }
.btn--dark { background: var(--ink); color: #fff; }
.btn--dark:hover { background: #000; box-shadow: 0 10px 24px -10px rgb(0 0 0 / .5); transform: translateY(-1px); }
.btn--light { background: var(--card); border: 1px solid var(--line); }
.btn--light:hover { background: var(--bg-tint); }
.btn--ghost:hover { background: rgb(0 0 0 / .05); }
.btn--lg { height: 52px; padding: 0 24px; font-size: 16px; border-radius: 14px; }
.btn--block { width: 100%; height: 48px; }

/* ---------- header ---------- */
.header { position: fixed; inset: 0 0 auto; z-index: 50; transition: background .3s, box-shadow .3s; }
.header.is-scrolled { background: rgb(251 250 247 / .82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: 0 1px 0 var(--line); }
.header__inner { height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; font-size: 18px; letter-spacing: -0.02em; }
.logo__mark { width: 22px; height: 22px; border-radius: 7px; background: conic-gradient(from 200deg, var(--c1), var(--c2), var(--c3), var(--c4), var(--c1)); animation: spin 8s linear infinite; }
.nav { display: flex; gap: 4px; }
.nav a { padding: 8px 12px; border-radius: 8px; color: var(--muted); font-size: 15px; transition: color .2s, background .2s; }
.nav a:hover { color: var(--ink); background: rgb(0 0 0 / .04); }
.header__actions { display: flex; align-items: center; gap: 6px; }
.menu-btn { display: none; width: 40px; height: 40px; position: relative; }
.menu-btn span { position: absolute; left: 11px; right: 11px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .35s var(--ease); }
.menu-btn span:first-child { top: 15px; } .menu-btn span:last-child { top: 23px; }
.menu-btn[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
.mobile-nav { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .4s var(--ease); background: var(--bg); }
.mobile-nav > * { overflow: hidden; }
.mobile-nav { padding-inline: 16px; }
.mobile-nav a { display: block; padding: 0; font-size: 22px; font-weight: 500; letter-spacing: -0.02em; }
.header.menu-open .mobile-nav { grid-template-rows: 1fr; }
.header.menu-open { background: var(--bg); }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; padding-top: clamp(120px, 18vh, 180px); padding-bottom: 120px; text-align: center; }
.hero__text { position: relative; z-index: 2; }
.pill {
  display: inline-flex; align-items: center; gap: 8px; padding: 5px 12px 5px 5px; border-radius: 999px;
  background: var(--card); border: 1px solid var(--line); font-size: 14px; color: var(--muted);
  box-shadow: 0 1px 2px rgb(0 0 0 / .04); transition: transform .3s var(--ease), box-shadow .3s;
}
.pill:hover { transform: translateY(-1px); box-shadow: 0 6px 18px -8px rgb(0 0 0 / .2); }
.pill .icon { width: 14px; height: 14px; transition: transform .3s var(--ease); }
.pill:hover .icon { transform: translateX(3px); }
.pill__tag { background: var(--ink); color: #fff; font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; }
.hero h1 { font-size: clamp(44px, 8vw, 96px); margin-top: 24px; letter-spacing: -0.05em; }
.hero h1 em { background: linear-gradient(90deg, var(--c2), var(--c3), var(--c4)); -webkit-background-clip: text; background-clip: text; color: transparent; padding-right: .08em; }
.hero__text p { margin: 20px auto 0; max-width: 560px; font-size: clamp(17px, 2vw, 20px); color: var(--muted); }

/* aurora: faixa de gradiente animada */
.aurora { position: absolute; left: 0; right: 0; top: 56%; height: 620px; z-index: 0; overflow: hidden; pointer-events: none;
  mask-image: linear-gradient(transparent, #000 30%, #000 70%, transparent);
  -webkit-mask-image: linear-gradient(transparent, #000 30%, #000 70%, transparent); }
.blob { position: absolute; width: 60vw; height: 60vw; max-width: 760px; max-height: 760px; border-radius: 50%; filter: blur(70px); opacity: .85; }
.b1 { background: var(--c1); left: -10%; top: 10%; animation: drift1 16s ease-in-out infinite; }
.b2 { background: var(--c2); left: 20%; top: 25%; animation: drift2 18s ease-in-out infinite; }
.b3 { background: var(--c3); left: 45%; top: 15%; animation: drift1 20s ease-in-out infinite reverse; }
.b4 { background: var(--c4); right: -15%; top: 30%; animation: drift2 15s ease-in-out infinite reverse; }
@keyframes drift1 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(8%, -10%) scale(1.15); } }
@keyframes drift2 { 0%,100% { transform: translate(0,0) scale(1.1); } 50% { transform: translate(-10%, 8%) scale(.9); } }
.grain { position: absolute; inset: 0; opacity: .18; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }

/* campo estilo prompt */
.prompt {
  position: relative; z-index: 2; max-width: 720px; margin-top: 48px;
  background: rgb(255 255 255 / .92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-radius: 24px; padding: 18px 18px 14px; text-align: left;
  box-shadow: 0 1px 0 rgb(255 255 255 / .8) inset, 0 30px 80px -20px rgb(80 40 120 / .35), 0 0 0 1px rgb(0 0 0 / .04);
  transition: box-shadow .3s, transform .4s var(--ease);
}
.prompt:focus-within { box-shadow: 0 30px 80px -16px rgb(80 40 120 / .45), 0 0 0 2px var(--c2); transform: translateY(-2px); }
.prompt textarea { width: 100%; border: 0; outline: 0; resize: none; background: transparent; font: inherit; font-size: 17px; color: var(--ink); min-height: 56px; }
.prompt textarea::placeholder { color: #9b968f; }
.prompt__bar { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { font-size: 13px; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); color: var(--muted); transition: all .25s var(--ease); }
.chip:hover { color: var(--ink); border-color: var(--ink); transform: translateY(-1px); }
.send { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--ink); color: #fff; flex: none; transition: transform .35s var(--ease-spring), opacity .2s; }
.send:hover { transform: scale(1.08) rotate(-8deg); }
.send:disabled { opacity: .35; transform: none; }
.hero__hint { position: relative; z-index: 2; margin-top: 18px; font-size: 14px; color: var(--ink); opacity: .75; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: #22c55e; margin-right: 4px; box-shadow: 0 0 0 0 rgb(34 197 94 / .6); animation: ping 1.8s infinite; vertical-align: 1px; }
@keyframes ping { 70% { box-shadow: 0 0 0 8px rgb(34 197 94 / 0); } 100% { box-shadow: 0 0 0 0 rgb(34 197 94 / 0); } }

/* ---------- confiança ---------- */
.trust { padding: 40px 0 8px; text-align: center; }
.trust p { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .12em; }
.trust__logos { margin-top: 18px; display: flex; justify-content: center; flex-wrap: wrap; gap: 12px 44px; font-family: var(--serif); font-size: 26px; color: #a9a39b; }

/* ---------- seções ---------- */
.section { padding: clamp(80px, 11vw, 140px) 0; }
.section--tint { background: var(--bg-tint); }
.section--flush { padding-inline: 0; }
.head { max-width: 640px; margin-bottom: 48px; }
.head--center { margin-inline: auto; text-align: center; }
h2 { font-size: clamp(36px, 5.5vw, 64px); }
.head p { margin-top: 14px; font-size: 18px; color: var(--muted); }

/* ---------- cards empilhados (sticky) ---------- */
.stack { display: grid; gap: 24px; }
.stack__card {
  position: sticky; top: calc(96px + var(--i, 0) * 18px);
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 32px; align-items: center;
  background: var(--card); border-radius: 28px; padding: 28px; min-height: 380px;
  box-shadow: 0 1px 0 var(--line), 0 30px 60px -30px rgb(0 0 0 / .18);
  transform-origin: 50% 0; transition: transform .2s linear;
}
.stack__card:nth-child(2) { --i: 1; } .stack__card:nth-child(3) { --i: 2; }
.stack__visual {
  position: relative; height: 100%; min-height: 300px; border-radius: 20px; overflow: hidden;
  background: var(--g); display: grid; place-items: center; padding: 24px;
}
.stack__visual::after { content: ""; position: absolute; inset: 0; background: radial-gradient(60% 60% at 30% 20%, rgb(255 255 255 / .5), transparent); }
.stack__text .num { font-family: var(--serif); font-size: 22px; color: var(--muted); }
.stack__text h3 { font-size: clamp(28px, 3.4vw, 40px); margin-top: 8px; }
.stack__text p { margin-top: 12px; color: var(--muted); font-size: 18px; max-width: 420px; }

.mock-chat, .mock-list, .mock-score { position: relative; z-index: 1; width: min(100%, 340px); }
.mock-chat { display: grid; gap: 10px; }
.bubble { padding: 10px 14px; border-radius: 16px; font-size: 14px; max-width: 85%; box-shadow: 0 8px 20px -10px rgb(0 0 0 / .3); }
.bubble.in { background: #fff; justify-self: start; border-bottom-left-radius: 4px; }
.bubble.out { background: var(--ink); color: #fff; justify-self: end; border-bottom-right-radius: 4px; }
.mock-list { display: grid; gap: 10px; }
.mock-list div { display: flex; align-items: center; gap: 10px; background: rgb(255 255 255 / .92); padding: 12px 14px; border-radius: 14px; font-size: 14px; font-weight: 500; }
.mock-list b { margin-left: auto; color: #16a34a; }
.mock-score { background: rgb(255 255 255 / .92); border-radius: 20px; padding: 24px; text-align: center; }
.mock-score strong { font-size: 72px; letter-spacing: -0.05em; line-height: 1; }
.mock-score span { display: block; color: var(--muted); font-size: 14px; margin-top: 6px; }
/* bolhas entram uma por uma */
.js .stack__card .bubble, .js .stack__card .mock-list div { opacity: 0; transform: translateY(10px) scale(.96); transition: opacity .5s var(--ease), transform .5s var(--ease-spring); }
.stack__card.is-in .bubble, .stack__card.is-in .mock-list div { opacity: 1; transform: none; }
.stack__card.is-in :is(.bubble, .mock-list div):nth-child(2) { transition-delay: .35s; }
.stack__card.is-in :is(.bubble, .mock-list div):nth-child(3) { transition-delay: .7s; }

/* ---------- mídia (placeholder de foto) ---------- */
.media { position: relative; overflow: hidden; background:
  radial-gradient(70% 60% at 25% 25%, hsl(var(--h, 300) 80% 85%), transparent 60%),
  radial-gradient(60% 60% at 80% 80%, hsl(calc(var(--h, 300) + 40) 80% 75%), transparent 60%),
  hsl(var(--h, 300) 50% 78%); }
.media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.media__label { position: absolute; left: 12px; bottom: 12px; font-size: 12px; color: #fff; background: rgb(0 0 0 / .25); padding: 4px 10px; border-radius: 999px; backdrop-filter: blur(6px); }
.media:has(img) .media__label { display: none; }

/* ---------- tratamentos ---------- */
.treatments { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.treat { position: relative; background: var(--card); border-radius: var(--r); padding: 10px; transition: transform .45s var(--ease), box-shadow .45s var(--ease); }
.treat:hover { transform: translateY(-6px); box-shadow: 0 30px 50px -28px rgb(60 20 80 / .35); }
.treat .media { aspect-ratio: 4 / 3; border-radius: 14px; }
.treat:hover .media img { transform: scale(1.05); }
.treat .media img { transition: transform .8s var(--ease); }
.treat__body { padding: 16px 8px 8px; }
.treat__body h3 { font-size: 20px; letter-spacing: -0.02em; }
.treat__body p { color: var(--muted); margin-top: 4px; font-size: 15px; }
.treat__body b { color: var(--ink); }
.treat__go { position: absolute; top: 22px; right: 22px; width: 40px; height: 40px; border-radius: 50%; background: #fff; display: grid; place-items: center; transform: scale(.6) rotate(-45deg); opacity: 0; transition: all .45s var(--ease-spring); z-index: 2; }
.treat:hover .treat__go { transform: none; opacity: 1; }

/* ---------- antes e depois ---------- */
.results { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
.results h2 + p { margin-top: 16px; font-size: 18px; }
.ticks { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 12px; }
.ticks li { display: flex; gap: 10px; align-items: center; font-weight: 500; }
.ticks .icon { width: 22px; height: 22px; padding: 4px; border-radius: 50%; background: var(--g2); color: #fff; stroke-width: 3; }
@property --pos { syntax: "<percentage>"; initial-value: 50%; inherits: true; }
.ba { --pos: 50%; position: relative; aspect-ratio: 4 / 4.4; border-radius: 28px; overflow: hidden; user-select: none; box-shadow: 0 40px 80px -40px rgb(60 20 80 / .45); }
.ba__after, .ba__before { position: absolute; inset: 0; }
.ba__before { clip-path: inset(0 calc(100% - var(--pos)) 0 0); }
.ba__tag { position: absolute; top: 16px; font-size: 13px; font-weight: 600; background: rgb(255 255 255 / .9); padding: 4px 12px; border-radius: 999px; z-index: 1; }
.ba__before .ba__tag { left: 16px; } .ba__after .ba__tag { right: 16px; }
.ba__handle { position: absolute; top: 0; bottom: 0; left: var(--pos); width: 2px; background: #fff; transform: translateX(-1px); pointer-events: none; }
.ba__handle span { position: absolute; top: 50%; left: 50%; width: 48px; height: 48px; margin: -24px 0 0 -24px; border-radius: 50%; background: #fff; display: grid; place-items: center; box-shadow: 0 6px 20px rgb(0 0 0 / .25); }
.ba__range { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: ew-resize; margin: 0; }

/* ---------- pacotes ---------- */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.plan { position: relative; background: var(--card); border-radius: 24px; padding: 32px 28px; display: flex; flex-direction: column; gap: 6px; box-shadow: 0 1px 0 var(--line); transition: transform .45s var(--ease); }
.plan:hover { transform: translateY(-4px); }
.plan h3 { font-size: 24px; }
.price { font-size: 52px; font-weight: 600; letter-spacing: -0.05em; margin: 18px 0 8px; }
.price small { font-size: 20px; vertical-align: 22px; margin-right: 4px; color: var(--muted); }
.price span { font-size: 16px; color: var(--muted); font-weight: 400; letter-spacing: 0; }
.plan ul { list-style: none; padding: 0; margin: 8px 0 24px; display: grid; gap: 10px; flex: 1; }
.plan li { padding-left: 26px; position: relative; }
.plan li::before { content: ""; position: absolute; left: 0; top: 7px; width: 14px; height: 8px; border-left: 2px solid var(--ink); border-bottom: 2px solid var(--ink); transform: rotate(-45deg); }
/* borda gradiente girando no plano em destaque */
.plan--hot { background: var(--card); isolation: isolate; }
.plan--hot::before { content: ""; position: absolute; inset: -2px; z-index: -2; border-radius: 26px; background: conic-gradient(from var(--a, 0deg), var(--c1), var(--c2), var(--c3), var(--c4), var(--c1)); animation: rotate 4s linear infinite; }
.plan--hot::after { content: ""; position: absolute; inset: 0; z-index: -1; border-radius: 24px; background: var(--card); }
@property --a { syntax: "<angle>"; initial-value: 0deg; inherits: false; }
@keyframes rotate { to { --a: 360deg; } }
.plan__badge { position: absolute; top: -13px; left: 28px; font-size: 12px; font-weight: 600; color: #fff; background: var(--ink); padding: 4px 12px; border-radius: 999px; }

/* ---------- letreiro de depoimentos ---------- */
.marquee { overflow: hidden; padding: 10px 0; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee__track { display: flex; gap: 16px; width: max-content; animation: marquee 50s linear infinite; }
.marquee--rev .marquee__track { animation-direction: reverse; animation-duration: 60s; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(calc(-50% - 8px)); } }
.review { margin: 0; width: 340px; background: var(--card); border-radius: 20px; padding: 22px; box-shadow: 0 1px 0 var(--line); }
.review .stars { color: #f59e0b; letter-spacing: 2px; }
.review blockquote { margin: 10px 0 14px; font-size: 16px; }
.review figcaption { font-size: 14px; color: var(--muted); font-weight: 500; }

/* ---------- FAQ ---------- */
.faq-wrap { display: grid; grid-template-columns: 1fr 1.3fr; gap: 48px; }
.faq-wrap h2 + p { margin-top: 14px; font-size: 18px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 22px 0; font-size: 18px; font-weight: 500; cursor: pointer; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .icon { transition: transform .35s var(--ease); }
.faq details[open] summary .icon { transform: rotate(45deg); }
.faq details p { padding-bottom: 22px; color: var(--muted); }
.faq details[open] p { animation: fadeDown .4s var(--ease); }
@keyframes fadeDown { from { opacity: 0; transform: translateY(-6px); } }

/* ---------- CTA ---------- */
.cta { position: relative; padding: clamp(100px, 12vw, 160px) 0; overflow: hidden; }
.aurora--cta { top: 0; height: 100%; mask-image: none; -webkit-mask-image: none; opacity: .75; }
.cta__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
.cta h2 { font-size: clamp(40px, 6vw, 76px); }
.cta p { margin-top: 18px; font-size: 18px; }
.cta__actions { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 10px; }
.map { border-radius: 24px; overflow: hidden; aspect-ratio: 4 / 3; background: #fff; box-shadow: 0 30px 60px -30px rgb(0 0 0 / .35); }
.map iframe { width: 100%; height: 100%; border: 0; display: block; }

/* ---------- footer ---------- */
.footer { padding: 32px 0; border-top: 1px solid var(--line); }
.footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer nav { display: flex; align-items: center; gap: 20px; color: var(--muted); }
.footer nav a:hover { color: var(--ink); }
.footer small { color: var(--muted); }

.wa-float { position: fixed; right: 20px; bottom: 20px; z-index: 40; width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; background: #25d366; color: #fff; box-shadow: 0 12px 30px -8px rgb(37 211 102 / .7); transition: transform .35s var(--ease-spring); animation: popIn .6s var(--ease-spring) 1.4s both; }
.wa-float:hover { transform: scale(1.1) rotate(-6deg); }
.wa-float .icon { width: 26px; height: 26px; }
@keyframes popIn { from { opacity: 0; transform: scale(.3); } }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- animação de entrada ---------- */
.js .reveal { opacity: 0; transform: translateY(24px); filter: blur(8px); transition: opacity 1s var(--ease), transform 1s var(--ease), filter 1s var(--ease); transition-delay: calc(var(--d, 0) * 100ms); }
.js .reveal.is-in { opacity: 1; transform: none; filter: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; transition-delay: 0s !important; }
  .js .reveal, .js .stack__card .bubble, .js .stack__card .mock-list div { opacity: 1; transform: none; filter: none; }
}

/* ---------- responsivo ---------- */
@media (max-width: 960px) {
  .treatments { grid-template-columns: repeat(2, 1fr); }
  .plans { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }
  .results, .faq-wrap, .cta__inner { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .nav, .hide-sm { display: none; }
  .menu-btn { display: block; }
  .header.menu-open .mobile-nav a { padding: 14px 0; }
  .header.menu-open .mobile-nav { padding-bottom: 16px; }
  .stack__card { grid-template-columns: 1fr; padding: 16px; min-height: 0; gap: 18px; top: calc(84px + var(--i, 0) * 12px); }
  .stack__visual { min-height: 220px; }
  .stack__text { padding: 0 8px 8px; }
  .treatments { grid-template-columns: 1fr; }
  .treat__go { opacity: 1; transform: none; }
  .aurora { top: 48%; height: 520px; }
  .blob { width: 110vw; height: 110vw; }
  .prompt { padding: 14px 14px 12px; border-radius: 20px; }
  .review { width: 280px; }
  .footer { padding-bottom: 96px; }
}