/* ==========================================================
   Sérum GHK-Cu — landing 100% mobile
   No desktop a página é exibida como uma coluna de celular centralizada.
   ========================================================== */
:root {
  --sky: #77D8F3;
  --cyan: #25B9E8;
  --deep: #073A66;
  --deep-2: #0B4F8A;
  --ink: #202124;
  --muted: #5B6470;
  --gray: #F5F7F9;
  --line: #E1E7EE;
  --ok: #0E7C4A;
  --ok-bg: #E6F5EE;
  --warn-bg: #FFF4CC;
  --warn: #5A4300;
  --r: 16px;
  --r-sm: 12px;
  --pad: 18px;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --font: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; font-family: var(--font); font-size: 15px; line-height: 1.55; color: var(--ink); background: #E9EEF3; overflow-x: hidden; }
img { display: block; max-width: 100%; height: auto; }
img.img-missing { background: var(--gray); color: transparent; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.18; letter-spacing: -0.015em; }
button { font: inherit; }
a { color: var(--deep-2); }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 2px; }

.app { max-width: 480px; margin: 0 auto; background: #fff; min-height: 100vh; position: relative; }
.app.has-bar { padding-bottom: calc(76px + var(--safe-b)); }
@media (min-width: 520px) { .app { box-shadow: 0 0 40px rgba(7, 58, 102, .12); } }
.pad { padding-left: var(--pad); padding-right: var(--pad); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 54px; padding: 0 20px; border: 0; border-radius: 14px; cursor: pointer;
  font-weight: 800; font-size: 16px; letter-spacing: .03em; text-decoration: none;
  transition: transform .1s ease, background-color .15s ease;
}
.btn:active { transform: scale(.98); }
.btn-buy {
  background: linear-gradient(180deg, #0B4F8A 0%, var(--deep) 100%); color: #fff;
  box-shadow: 0 8px 20px rgba(7, 58, 102, .3), inset 0 1px 0 rgba(255, 255, 255, .15);
}
.btn-buy[aria-disabled="true"] { background: #9AA6B2; box-shadow: none; cursor: not-allowed; }
.btn-ghost { background: #fff; color: var(--deep); border: 1.5px solid var(--line); }

/* ---------- Avisos / topo ---------- */
.config-warning { background: var(--warn-bg); color: var(--warn); font-size: 12.5px; line-height: 1.45; padding: 9px var(--pad); }
.config-warning summary { cursor: pointer; font-weight: 700; }
.config-warning ul { margin: 6px 0 0; padding-left: 18px; }
.topbar { background: var(--deep); color: #fff; text-align: center; font-size: 12.5px; font-weight: 700; padding: 8px var(--pad); letter-spacing: .02em; }

.header {
  position: sticky; top: 0; z-index: 30; height: 54px; padding: 0 var(--pad);
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(255, 255, 255, .95); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.logo { font-size: 23px; font-weight: 600; letter-spacing: -0.03em; color: var(--ink); text-decoration: none; }
.logo-light { color: #fff; }
.header-buy { font-size: 13.5px; font-weight: 800; color: #fff; background: var(--deep); text-decoration: none; padding: 8px 16px; border-radius: 999px; }

/* ---------- Galeria ---------- */
.gallery { position: relative; background: #fff; }
.gallery-track { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; overscroll-behavior-x: contain; }
.gallery-track::-webkit-scrollbar { display: none; }
.slide { flex: 0 0 100%; margin: 0; scroll-snap-align: center; aspect-ratio: 1 / 1; }
.slide img { width: 100%; height: 100%; object-fit: cover; }
.gallery-dots { position: absolute; left: 0; right: 0; bottom: 10px; display: flex; justify-content: center; gap: 6px; }
.gallery-dots button { width: 7px; height: 7px; padding: 0; border: 0; border-radius: 999px; background: rgba(7, 58, 102, .25); cursor: pointer; transition: width .2s ease, background-color .2s ease; }
.gallery-dots button[aria-selected="true"] { width: 22px; background: var(--deep); }
/* área de toque maior sem aumentar o ponto */
.gallery-dots button { position: relative; }
.gallery-dots button::after { content: ""; position: absolute; inset: -10px -4px; }

/* ---------- Hero ---------- */
.hero-body { padding: 16px var(--pad) 4px; display: grid; gap: 10px; }
.tag { font-size: 11.5px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--cyan); }
.hero h1 { font-size: clamp(26px, 7.6vw, 32px); font-weight: 800; color: var(--deep); }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, var(--deep-2), var(--cyan)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { font-size: 14.5px; color: #3D444D; }
.hero-sub strong { color: var(--ink); }
.rating { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--muted); }
.rating .stars { color: #F2A900; font-size: 15px; letter-spacing: 1px; }
.rating strong { color: var(--ink); }

.checks { list-style: none; margin: 2px 0 0; padding: 0; display: grid; gap: 6px; }
.checks li { position: relative; padding-left: 28px; font-size: 14.5px; font-weight: 600; color: var(--ink); }
.checks li::before {
  content: ""; position: absolute; left: 0; top: 2px; width: 19px; height: 19px; border-radius: 50%;
  background: var(--cyan) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center / 13px no-repeat;
}

/* ---------- Seletor de kits ---------- */
.offer { padding: 16px var(--pad) 24px; scroll-margin-top: 60px; }
.offer:focus { outline: none; }
.offer-title { font-size: 15px; font-weight: 800; margin-bottom: 10px; }
.offer-list { display: grid; gap: 10px; }

.opt {
  position: relative; display: grid; grid-template-columns: 22px 46px 1fr auto; align-items: center; gap: 10px;
  padding: 14px 12px; border: 2px solid var(--line); border-radius: var(--r); background: #fff; cursor: pointer;
  -webkit-tap-highlight-color: transparent; transition: border-color .15s ease, box-shadow .15s ease, background-color .15s ease;
}
.opt input { position: absolute; opacity: 0; pointer-events: none; }
.opt.is-on { border-color: var(--deep); background: #F2FAFE; box-shadow: 0 0 0 3px rgba(37, 185, 232, .22); }
.opt.is-disabled { cursor: default; opacity: .9; }
.opt-radio { width: 22px; height: 22px; border-radius: 50%; border: 2px solid #A7B2BE; display: grid; place-items: center; background: #fff; }
.opt.is-on .opt-radio { border-color: var(--deep); }
.opt.is-on .opt-radio::after { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--deep); }
.opt input:focus-visible ~ .opt-radio { outline: 3px solid var(--cyan); outline-offset: 2px; }
.opt-thumb { position: relative; height: 54px; display: flex; align-items: flex-end; justify-content: center; }
.opt-thumb img { width: 20px; height: 54px; object-fit: cover; object-position: left center; margin-left: -8px; mix-blend-mode: multiply; }
.opt-thumb img:first-child { margin-left: 0; }
.opt-thumb .qty { position: absolute; right: -4px; top: -6px; min-width: 20px; height: 20px; padding: 0 5px; border-radius: 999px; background: var(--deep); color: #fff; font-size: 11px; font-weight: 800; display: grid; place-items: center; }
.opt-body { min-width: 0; display: grid; gap: 2px; }
.opt-name { font-size: 15px; font-weight: 800; color: var(--ink); }
.opt-unit { font-size: 12.5px; color: var(--muted); font-weight: 600; }
.opt-chips { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 3px; }
.chip { font-size: 11px; font-weight: 800; padding: 2px 7px; border-radius: 6px; background: var(--ok-bg); color: var(--ok); }
.chip.ship { background: #E8F4FB; color: var(--deep-2); }
.opt-price { text-align: right; display: grid; gap: 1px; }
.opt-price s { font-size: 12px; color: #8A939D; font-weight: 600; }
.opt-price strong { font-size: 18px; font-weight: 800; color: var(--ink); letter-spacing: -0.02em; white-space: nowrap; }
.opt-price .ex { font-size: 9.5px; font-weight: 800; color: var(--warn); background: var(--warn-bg); padding: 1px 5px; border-radius: 4px; justify-self: end; letter-spacing: .04em; }
.opt-badge {
  position: absolute; top: -10px; right: 12px; font-size: 10.5px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 999px; background: var(--cyan); color: var(--deep);
}
.opt-badge.alt { background: var(--deep); color: #fff; }
.opt-pending { grid-column: 3 / -1; font-size: 12.5px; color: var(--warn); }

.offer .btn-buy { width: 100%; margin-top: 14px; min-height: 58px; font-size: 17px; flex-direction: column; gap: 0; line-height: 1.2; }
.btn-buy small { font-size: 12px; font-weight: 600; letter-spacing: 0; opacity: .85; }
.offer-note { margin-top: 8px; text-align: center; font-size: 13px; color: var(--muted); font-weight: 600; }
.mini-trust { list-style: none; padding: 0; margin: 14px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.mini-trust:empty { display: none; }
.mini-trust li { display: grid; justify-items: center; gap: 4px; text-align: center; font-size: 11.5px; font-weight: 700; color: #3D444D; line-height: 1.25; padding: 10px 4px; background: var(--gray); border-radius: var(--r-sm); }
.mini-trust svg { width: 20px; height: 20px; fill: none; stroke: var(--deep); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- Seções ---------- */
.sec { padding: 40px 0; }
.sec h2 { font-size: clamp(23px, 6.6vw, 28px); font-weight: 800; color: var(--deep); margin-bottom: 12px; }
.sec .pad > p { color: #3D444D; font-size: 15px; }
.kicker { font-size: 11.5px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--cyan); margin-bottom: 8px; }
.fine { font-size: 12px; color: var(--muted); margin-top: 16px; }
.soft { background: var(--gray); }

.problem { padding-top: 0; background: linear-gradient(180deg, #fff 0%, #EEF8FC 100%); }
.problem-media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.problem .pad { padding-top: 22px; }

.dark { background: radial-gradient(120% 80% at 80% 0%, #0E5A98 0%, var(--deep) 55%, #052A4B 100%); color: #fff; }
.dark h2 { color: #fff; }
.dark .pad > p { color: rgba(255, 255, 255, .82); }
.kicker.light { color: var(--sky); }
.fine.light { color: rgba(255, 255, 255, .6); }
.benefits { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 22px var(--pad) 0; }
.benefit { background: rgba(255, 255, 255, .07); border: 1px solid rgba(119, 216, 243, .22); border-radius: var(--r); padding: 16px 14px; display: grid; gap: 6px; align-content: start; }
.benefit h3 { font-size: 16px; font-weight: 800; }
.benefit p { font-size: 13px; color: rgba(255, 255, 255, .8); line-height: 1.45; }
.b-ico { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: linear-gradient(135deg, var(--sky), var(--cyan)); }
.b-ico svg { width: 20px; height: 20px; fill: none; stroke: var(--deep); stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }

.formula { display: grid; gap: 14px; padding: 0 var(--pad); }
.formula-img { width: 100%; aspect-ratio: 16 / 11; object-fit: cover; border-radius: var(--r); }
.actives { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.actives li { display: grid; grid-template-columns: 34px 1fr; gap: 12px; align-items: start; padding: 14px; border: 1px solid var(--line); border-radius: var(--r); }
.actives li > span { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; color: #fff; background: var(--deep); }
.actives strong { font-size: 15px; }
.actives p { font-size: 13.5px; color: var(--muted); margin-top: 2px; }

.steps { list-style: none; margin: 0; padding: 0 var(--pad); display: grid; gap: 10px; }
.steps li { display: grid; grid-template-columns: 76px 1fr; gap: 14px; align-items: center; background: #fff; border-radius: var(--r); padding: 10px; }
.steps img { width: 76px; height: 76px; object-fit: cover; border-radius: 12px; }
.steps strong { font-size: 15px; color: var(--ink); }
.steps p { font-size: 13.5px; color: var(--muted); margin-top: 2px; white-space: pre-line; }

.ugc { display: flex; gap: 10px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 0 var(--pad) 6px; scrollbar-width: none; }
.ugc::-webkit-scrollbar { display: none; }
.ugc figure { flex: 0 0 44%; margin: 0; scroll-snap-align: start; }
.ugc img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--r-sm); background: var(--gray); }
.ugc figcaption { font-size: 13px; padding-top: 6px; }
.ugc cite { display: block; font-style: normal; font-weight: 700; font-size: 12px; color: var(--muted); }

.offer-sec { background: linear-gradient(180deg, var(--deep) 0%, #0B4F8A 38%, #EEF8FC 38.1%, #EEF8FC 100%); }
.offer-sec h2 { color: #fff; }
.offer-alt { padding-top: 6px; }
.offer-alt .offer-list { background: #fff; padding: 14px 10px; border-radius: 20px; box-shadow: 0 12px 30px rgba(7, 58, 102, .18); }

.trust { list-style: none; margin: 0; padding: 0 var(--pad); display: grid; gap: 10px; }
.trust li { display: grid; grid-template-columns: 40px 1fr; gap: 12px; align-items: start; padding: 14px; border-radius: var(--r); background: var(--gray); }
.trust .ti { width: 40px; height: 40px; border-radius: 12px; background: #fff; display: grid; place-items: center; }
.trust .ti svg { width: 20px; height: 20px; fill: none; stroke: var(--deep); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.trust strong { display: block; font-size: 15px; }
.trust p { font-size: 13.5px; color: #4A525C; }
.trust a { font-weight: 700; }

.faq { display: grid; gap: 8px; }
.faq details { background: #fff; border-radius: var(--r-sm); border: 1px solid var(--line); }
.faq details[open] { border-color: rgba(37, 185, 232, .55); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 12px; min-height: 54px; padding: 12px 14px; font-weight: 700; font-size: 14.5px; -webkit-tap-highlight-color: transparent; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; flex: 0 0 26px; height: 26px; border-radius: 50%; background: var(--gray); color: var(--deep); font-size: 18px; font-weight: 700; display: grid; place-items: center; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq .answer { padding: 0 14px 14px; font-size: 14px; color: #3D444D; display: grid; gap: 8px; }

/* ---------- Rodapé ---------- */
.footer { background: var(--deep); color: rgba(255, 255, 255, .8); padding: 30px var(--pad) 26px; display: grid; gap: 12px; font-size: 13px; }
.f-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 16px; }
.f-list:empty, .f-legal:empty { display: none; }
.footer a { color: #fff; }
.f-copy { color: rgba(255, 255, 255, .55); font-size: 12px; }

/* ---------- Barra fixa ---------- */
.buy-bar {
  position: fixed; left: 50%; bottom: 0; z-index: 40; width: 100%; max-width: 480px;
  display: flex; align-items: center; gap: 12px; padding: 10px var(--pad) calc(10px + var(--safe-b));
  background: #fff; border-top: 1px solid var(--line); box-shadow: 0 -8px 24px rgba(7, 58, 102, .1);
  transform: translate(-50%, 110%); visibility: hidden; transition: transform .22s ease, visibility .22s;
}
.buy-bar.is-visible { transform: translate(-50%, 0); visibility: visible; }
.bb-info { display: grid; min-width: 0; flex: 1; }
.bb-label { font-size: 12px; color: var(--muted); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bb-price { font-size: 19px; font-weight: 800; }
.buy-bar .btn { flex: 0 0 auto; min-height: 52px; padding: 0 28px; }

/* ---------- Consentimento ---------- */
.consent {
  position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(8px + var(--safe-b)); z-index: 50;
  width: calc(100% - 16px); max-width: 464px; background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  box-shadow: 0 10px 30px rgba(7, 58, 102, .18); padding: 14px; display: grid; gap: 10px; font-size: 13px; color: #3D444D;
}
.consent-actions { display: flex; justify-content: flex-end; gap: 8px; }
.consent .btn { min-height: 44px; font-size: 14px; padding: 0 16px; }

.noscript { padding: 16px; text-align: center; background: var(--warn-bg); }

@media (max-width: 359px) {
  :root { --pad: 14px; }
  .opt { grid-template-columns: 22px 1fr auto; }
  .opt-thumb { display: none; }
  .benefits { grid-template-columns: 1fr; }
}

/* ajustes */
.btn-buy [data-buy-label] { display: grid; justify-items: center; line-height: 1.2; }
.btn-buy small { display: block; margin-top: 2px; }
.mini-trust { display: flex; flex-wrap: wrap; }
.mini-trust li { flex: 1 1 0; min-width: 96px; }
.toast-note { color: var(--warn) !important; }
.formula-img { object-fit: contain; background: #fff; }
.offer-sec { background: radial-gradient(120% 70% at 80% 0%, #0E5A98 0%, var(--deep) 60%, #052A4B 100%); }
.offer-sec .offer-note { color: rgba(255, 255, 255, .8); }
.offer-sec .btn-buy { background: linear-gradient(180deg, #3CC6F0 0%, var(--cyan) 100%); color: var(--deep); box-shadow: 0 8px 22px rgba(37, 185, 232, .35); }
.chip { white-space: nowrap; }
.offer-alt .opt { padding: 12px 10px; gap: 8px; }

/* E-mail da loja exibido via CSS (não fica no texto da página) */
.mail-link::after { content: attr(data-mu) "@" attr(data-md); }