/* ===========================================================
   Péptidos Sin Caos — sistema de diseño
   Limpio y moderno (tipo Apple) pero con movimiento.
   Paleta salud/ciencia: grafito + verde profundo + azul petróleo.
   =========================================================== */

:root {
  /* superficies — azul marino premium */
  --bg:        #081325;
  --surface:   #0E1E38;
  --surface-2: #0A1A30;
  --line:      #21385C;
  --line-soft: #172A48;

  /* tinta — claro sobre azul */
  --ink:    #EAF2FF;
  --ink-2:  #C4D5EF;
  --muted:  #8298BC;

  /* marca — celestes + cian + dorado */
  --brand:      #3DA5F0;   /* celeste brillante (acento primario) */
  --brand-deep: #1E6FC0;   /* azul medio */
  --petrol:     #2BC4D6;   /* cian */
  --teal:       #2DD4BF;   /* turquesa */
  --gold:       #E6B24A;   /* dorado — contraste premium */
  --mint:       #12325A;
  --mint-soft:  #102744;

  /* evidencia — brillantes para resaltar en oscuro */
  --ev-establecido: #34D399;
  --ev-clinico:     #38BDF8;
  --ev-comunidad:   #E6B24A;
  --ev-especulativo:#94A3B8;

  /* sistema */
  --radius-sm: 11px;
  --radius:    18px;
  --radius-lg: 26px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.35), 0 2px 8px rgba(0,0,0,.25);
  --shadow:    0 16px 40px rgba(0,0,0,.45);
  --shadow-lg: 0 30px 70px rgba(0,0,0,.55);
  --ring:      0 0 0 4px rgba(61,165,240,.28);

  --nav-h: 70px;
  --maxw: 1180px;

  --ease: cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 18px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, .display {
  font-family: "Sora", "Inter", sans-serif;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0;
  color: var(--ink);
  margin: 0 0 .4em;
}
h1 { font-size: clamp(2.4rem, 6vw, 4.1rem); }
h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); }
h3 { font-size: 1.25rem; letter-spacing: -0.01em; }
p  { margin: 0 0 1rem; color: var(--ink-2); }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section   { padding: clamp(64px, 9vw, 110px) 0; }
section[id] { scroll-margin-top: calc(var(--nav-h) + 18px); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: "Sora", sans-serif; font-weight: 600;
  font-size: .76rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--brand); margin-bottom: 16px;
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--brand); border-radius: 2px; }
.lead { font-size: 1.12rem; color: var(--muted); max-width: 60ch; }
.center { text-align: center; }
.center .lead, .center .eyebrow { margin-left: auto; margin-right: auto; }

/* ---------- botones ---------- */
.btn {
  --bg: var(--brand);
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: "Sora", sans-serif; font-weight: 600; font-size: .98rem;
  padding: 14px 26px; border-radius: 999px; border: 1px solid transparent;
  cursor: pointer; transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .2s;
  white-space: nowrap;
}
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 10px 24px rgba(14,124,102,.28); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(14,124,102,.36); background: #0c6e5a; }
.btn-ghost { background: rgba(255,255,255,.6); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { transform: translateY(-2px); background: #fff; box-shadow: var(--shadow-sm); }
.btn-light { background: rgba(255,255,255,.14); color: #fff; border-color: rgba(255,255,255,.28); }
.btn-light:hover { transform: translateY(-2px); background: rgba(255,255,255,.22); }
.btn-lg { padding: 17px 34px; font-size: 1.05rem; }

/* ---------- navbar ---------- */
.nav {
  position: sticky; top: 0; z-index: 50; height: var(--nav-h);
  background: rgba(250,252,251,.78); backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid transparent; transition: border-color .3s, box-shadow .3s;
}
.nav.scrolled { border-color: var(--line); box-shadow: var(--shadow-sm); }
.nav-in { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.brand { display: flex; align-items: center; gap: 11px; font-family: "Sora",sans-serif; font-weight: 700; letter-spacing: -.02em; font-size: 1.08rem; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--brand), var(--petrol)); color: #fff;
  font-size: 1.1rem; box-shadow: 0 6px 16px rgba(11,110,122,.30);
}
.brand small { display: block; font-family: "Inter",sans-serif; font-weight: 500; font-size: .68rem; letter-spacing: .04em; color: var(--muted); }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a { font-family: "Sora",sans-serif; font-weight: 500; font-size: .94rem; color: var(--ink-2); transition: color .2s; }
.nav-links a:hover { color: var(--brand); }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; padding: clamp(46px, 7vw, 78px) 0 clamp(44px,6vw,64px); }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(48% 60% at 78% 6%, rgba(20,184,166,.16), transparent 60%),
    radial-gradient(40% 55% at 10% 90%, rgba(11,110,122,.12), transparent 60%),
    var(--bg);
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .5;
  background-image: linear-gradient(var(--line-soft) 1px, transparent 1px), linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 46px 46px; mask-image: radial-gradient(70% 60% at 60% 20%, #000, transparent 75%);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 58px; align-items: center; }
.hero h1 span { background: linear-gradient(120deg, var(--brand), var(--teal) 55%, var(--petrol)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: 1.2rem; margin-bottom: 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 26px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 18px 26px; color: var(--muted); font-size: .9rem; }
.hero-trust span { display: inline-flex; align-items: center; gap: 7px; }
.hero-trust b { color: var(--brand); }
.hero-trust span::before {
  content: ""; width: 7px; height: 7px; border-radius: 999px;
  background: linear-gradient(135deg, var(--brand), var(--teal));
  box-shadow: 0 0 0 4px rgba(20,184,166,.12);
}

.hero-visual {
  position: relative;
  min-height: 430px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
}
.hero-img {
  width: 88%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center 42%;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,.72);
  box-shadow: var(--shadow-lg);
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 34px -10px 54px 72px;
  z-index: -1;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(14,124,102,.16), rgba(11,110,122,.12));
}

/* tarjeta flotante del hero */
.hero-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); padding: 24px; position: relative;
  animation: floaty 7s ease-in-out infinite;
}
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.hero-card h4 { font-family: "Sora",sans-serif; font-size: .82rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin: 0 0 14px; }
.hero-card-overlay {
  position: relative;
  left: auto;
  right: auto;
  bottom: auto;
  width: min(420px, calc(100% - 34px));
  align-self: flex-start;
  margin-top: -58px;
  padding: 16px;
  animation: none;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
}
.hc-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 10px 0; border-top: 1px solid var(--line-soft); }
.hc-row:first-of-type { border-top: 0; }
.hc-name { font-family: "Sora",sans-serif; font-weight: 600; }
.hc-name small { display: block; color: var(--muted); font-weight: 400; font-family: "Inter",sans-serif; font-size: .8rem; }

/* ---------- chips de evidencia / categoría ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: "Sora",sans-serif; font-weight: 600; font-size: .72rem; letter-spacing: .02em;
  padding: 5px 11px; border-radius: 999px; line-height: 1;
}
.badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; opacity: .9; }
.ev-establecido { color: var(--ev-establecido); background: rgba(14,124,102,.10); }
.ev-clinico     { color: var(--ev-clinico);     background: rgba(11,110,143,.10); }
.ev-comunidad   { color: var(--ev-comunidad);   background: rgba(176,117,21,.12); }
.ev-especulativo{ color: var(--ev-especulativo);background: rgba(107,114,128,.12); }

/* ---------- filtros ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin: 34px 0 44px; }
.chip {
  font-family: "Sora",sans-serif; font-weight: 500; font-size: .92rem;
  padding: 10px 20px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--surface); color: var(--ink-2); cursor: pointer;
  transition: all .22s var(--ease);
}
.chip:hover { border-color: var(--brand); color: var(--brand); }
.chip.active { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ---------- grid de péptidos ---------- */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.pcard {
  display: flex; flex-direction: column; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 22px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
  position: relative; overflow: hidden;
}
.pcard::after {
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 100%;
  background: linear-gradient(90deg, var(--brand), var(--teal)); transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease);
}
.pcard:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.pcard:hover::after { transform: scaleX(1); }
.pcard-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; gap: 12px; }
.pcard-icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-size: 1.3rem; background: var(--mint-soft); }
.pcard-media {
  position: relative;
  width: 100%;
  height: 140px;
  margin-bottom: 16px;
  border-radius: 14px;
  overflow: hidden;
  background: var(--surface-2);
  display: grid;
  place-items: center;
}
.pcard-media .pcard-mol-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .4s var(--ease);
}
.pcard:hover .pcard-media .pcard-mol-img { transform: scale(1.05); }
.pcard-media .badge { position: absolute; top: 10px; right: 10px; }
.pcard-icon-lg { width: 64px; height: 64px; font-size: 2rem; border-radius: 16px; }
.pcard h3 { margin: 0 0 2px; }
.pcard .aka { color: var(--muted); font-size: .85rem; margin: 0 0 12px; }
.pcard .goal { color: var(--ink-2); font-size: .96rem; margin: 0 0 16px; flex-grow: 1; }
.pcard-foot { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line-soft); }
.pcard-foot .more { font-family: "Sora",sans-serif; font-weight: 600; font-size: .9rem; color: var(--brand); display: inline-flex; align-items: center; gap: 6px; transition: gap .2s; }
.pcard:hover .pcard-foot .more { gap: 11px; }
.cat-tag { font-size: .78rem; color: var(--muted); }

/* ---------- bloque CTA / guía ---------- */
.cta-wrap {
  position: relative; overflow: hidden; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--brand-deep), var(--petrol)); color: #fff;
  padding: clamp(40px, 6vw, 68px); box-shadow: var(--shadow-lg);
}
.cta-wrap::before { content:""; position:absolute; inset:0; z-index:0; background: radial-gradient(40% 70% at 85% 10%, rgba(20,184,166,.30), transparent 60%); }
.cta-wrap > * { position: relative; z-index: 1; }
.cta-wrap h2 { color: #fff; }
.cta-wrap .lead { color: rgba(255,255,255,.86); }
.cta-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: center; }
.price-card { background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.20); border-radius: var(--radius); padding: 28px; backdrop-filter: blur(6px); }
.price-card .price { font-family: "Sora",sans-serif; font-size: 3.2rem; font-weight: 800; line-height: 1; }
.price-card .price small { font-size: 1rem; font-weight: 500; opacity: .8; }
.price-card ul { list-style: none; padding: 0; margin: 18px 0 22px; }
.price-card li { padding: 7px 0; display: flex; gap: 10px; font-size: .95rem; color: rgba(255,255,255,.9); }
.price-card li::before { content: "✓"; color: var(--teal); font-weight: 700; }

/* ---------- captura de correo ---------- */
.signup { display: flex; gap: 10px; max-width: 480px; }
.signup input { flex: 1; padding: 15px 18px; border-radius: 999px; border: 1px solid var(--line); font: inherit; background: var(--surface); }
.signup input:focus { outline: none; border-color: var(--teal); box-shadow: var(--ring); }
.signup button[disabled] { opacity: .65; cursor: progress; }
.signup form[data-signup] { justify-content: center; }
form[data-signup] { margin-left: auto; margin-right: auto; }
.capture-card { text-align: center; background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 44px 38px; box-shadow: var(--shadow, 0 18px 40px -24px rgba(14,28,48,.35)); }
.capture-card .signup { margin-left: auto; margin-right: auto; }
@media (max-width: 640px) { .capture-card { padding: 34px 22px; } }

/* ---------- feature row ---------- */
.features { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.feature { position: relative; overflow: hidden; background: linear-gradient(165deg, #102744, #0B1D38); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px; transition: transform .3s var(--ease), box-shadow .3s, border-color .3s; }
.feature::before { content: ""; position: absolute; top: -45%; right: -18%; width: 230px; height: 230px; background: radial-gradient(circle, rgba(61,165,240,.16), transparent 70%); pointer-events: none; }
.feature > * { position: relative; z-index: 1; }
.feature:hover { transform: translateY(-6px); border-color: rgba(61,165,240,.40); box-shadow: 0 22px 50px rgba(0,0,0,.5); }
.feature .ic { width: 56px; height: 56px; border-radius: 16px; display:grid; place-items:center; font-size: 1.5rem; background: linear-gradient(135deg, rgba(61,165,240,.18), rgba(43,196,214,.10)); border: 1px solid rgba(61,165,240,.28); box-shadow: 0 0 26px rgba(61,165,240,.14); margin-bottom: 18px; }
.feature h3 { margin-bottom: 8px; }
.feature p { font-size: .96rem; margin: 0; }
.insight-band { background: var(--surface); border-top: 1px solid var(--line-soft); }
.system-strip {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(22px,4vw,54px);
  align-items: end;
  padding-bottom: 38px;
}
.system-strip h2 { max-width: 12ch; }
.system-strip p { margin: 0; font-size: 1.05rem; color: var(--ink-2); max-width: 62ch; }
.system-features .feature { border-top: 3px solid var(--brand); }
.feature .text-ic {
  font-family: "Sora",sans-serif;
  font-size: .96rem;
  font-weight: 800;
  color: var(--brand-deep);
}
/* ---------- disclaimer ---------- */
.disclaimer { background: var(--surface-2); border-top: 1px solid var(--line); }
.disclaimer .container { padding-top: 28px; padding-bottom: 28px; }
.disclaimer p { font-size: .86rem; color: var(--muted); margin: 0; max-width: 90ch; }

/* ---------- footer ---------- */
.footer { background: var(--ink); color: rgba(255,255,255,.72); padding: 56px 0 34px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; margin-bottom: 34px; }
.footer h5 { font-family:"Sora",sans-serif; color:#fff; font-size:.85rem; text-transform:uppercase; letter-spacing:.1em; margin:0 0 14px; }
.footer a { display: block; padding: 5px 0; color: rgba(255,255,255,.66); transition: color .2s; font-size: .94rem; }
.footer a:hover { color: var(--teal); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding-top: 22px; font-size: .82rem; color: rgba(255,255,255,.5); display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; }

/* =========================================================
   Página de detalle de péptido
   ========================================================= */
.detail-hero { background: linear-gradient(180deg, var(--mint-soft), var(--bg)); border-bottom: 1px solid var(--line); }
.detail-hero .container { padding-top: 46px; padding-bottom: 46px; }
.back-link { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-family:"Sora",sans-serif; font-weight:500; font-size:.9rem; margin-bottom: 22px; transition: gap .2s,color .2s; }
.back-link:hover { color: var(--brand); gap: 11px; }
.detail-head { display: flex; align-items: flex-start; gap: 20px; }
.detail-head .pcard-icon { width: 64px; height: 64px; font-size: 1.9rem; flex-shrink: 0; }
.detail-head h1 { font-size: clamp(2.1rem, 4.5vw, 3.2rem); margin: 0 0 6px; }
.detail-head .aka { color: var(--muted); font-size: 1rem; margin: 0 0 14px; }
.detail-badges { display: flex; flex-wrap: wrap; gap: 9px; }

.detail-grid { display: grid; grid-template-columns: 1.6fr .9fr; gap: 40px; align-items: start; }
.detail-main .block { margin-bottom: 30px; }
.detail-main h2 { font-size: 1.4rem; margin-bottom: 10px; }
.detail-main .micro { font-family:"Sora",sans-serif; font-size:.76rem; text-transform:uppercase; letter-spacing:.12em; color: var(--brand); margin-bottom: 8px; }
.risk-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 9px; }
.risk-list li { display:flex; gap:11px; align-items:flex-start; background: var(--surface); border:1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 15px; font-size:.95rem; }
.risk-list li::before { content:"⚠"; color: var(--ev-comunidad); }

.detail-aside { position: sticky; top: calc(var(--nav-h) + 18px); display: grid; gap: 18px; }
.aside-card { background: var(--surface); border:1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow-sm); }
.aside-card h4 { font-family:"Sora",sans-serif; font-size:.78rem; text-transform:uppercase; letter-spacing:.1em; color: var(--muted); margin:0 0 14px; }
.aside-row { display:flex; justify-content:space-between; gap:14px; padding:9px 0; border-top:1px solid var(--line-soft); font-size:.92rem; }
.aside-row:first-of-type { border-top:0; }
.aside-row span:first-child { color: var(--muted); }
.aside-row span:last-child { font-weight:600; text-align:right; }
.product-card { padding: 0; overflow: hidden; }
.product-image {
  background: #F6F4EC;
  overflow: hidden;
  display: grid;
  place-items: center;
}
.product-image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}
.product-meta {
  border-top: 1px solid var(--line-soft);
  padding: 14px 18px 16px;
  display: grid;
  gap: 4px;
}
.product-meta strong { font-family: "Sora",sans-serif; font-size: 1.02rem; }
.product-meta span { color: var(--muted); font-size: .86rem; }
.molecule-card { padding: 0; overflow: hidden; }
.mol-top {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 18px 18px 0;
}
.mol-top h4 { margin: 0; }
.mol-image {
  margin: 12px 18px 0;
  border-radius: 16px;
  border: 1px solid var(--line-soft);
  background: #fff;
  overflow: hidden;
}
.mol-image img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  padding: 12px;
  background: #fff;
}
.mol-meta {
  border-top: 1px solid var(--line-soft);
  padding: 14px 18px 18px;
  display: grid;
  gap: 5px;
}
.mol-meta strong { font-family: "Sora",sans-serif; font-size: .96rem; }
.mol-meta span { color: var(--muted); font-size: .84rem; word-break: break-word; }
.mol-meta sub { font-size: .66em; line-height: 0; }
.mol-meta a { color: var(--brand); font-family: "Sora",sans-serif; font-weight: 600; font-size: .82rem; }
.structure-note p { margin: 0; font-size: .9rem; color: var(--muted); }
.aside-cta { background: linear-gradient(135deg, var(--brand-deep), var(--petrol)); color:#fff; }
.aside-cta h4 { color: rgba(255,255,255,.8); }
.aside-cta p { color: rgba(255,255,255,.88); font-size:.92rem; }

/* =========================================================
   Animaciones de aparición
   ========================================================= */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; } .reveal.d2 { transition-delay: .16s; } .reveal.d3 { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-card { max-width: 420px; }
  .hero-visual { min-height: auto; max-width: 620px; }
  .hero-img { width: 100%; }
  .hero-card-overlay { position: relative; left: auto; right: auto; bottom: auto; margin: -54px auto 0; width: calc(100% - 32px); }
  .grid, .features { grid-template-columns: repeat(2,1fr); }
  .cta-grid, .detail-grid { grid-template-columns: 1fr; }
  .system-strip { grid-template-columns: 1fr; align-items: start; }
  .system-strip h2 { max-width: 100%; }
  .detail-aside { position: static; }
}
@media (max-width: 640px) {
  /* Menú móvil: el JS alterna display:flex en .nav-links. Lo presentamos como
     panel desplegable debajo del nav (antes los links flotaban sueltos sobre el hero). */
  .nav-links {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0; z-index: 60;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #0b1a36; border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 40px rgba(0,0,0,.5);
    padding: 4px 24px 12px;
  }
  .nav-links a { padding: 13px 2px; font-size: 1rem; color: var(--ink); border-bottom: 1px solid rgba(255,255,255,.07); }
  .nav-links a:last-child { border-bottom: 0; }
  .nav-toggle { display: grid; }
  .grid, .features, .footer-grid { grid-template-columns: 1fr; }
  .hero-img { aspect-ratio: 4 / 3; }
  .hero-card-overlay { margin-top: -34px; width: calc(100% - 20px); }
  .signup { flex-direction: column; }
  .signup input, .signup .btn { width: 100%; }

  /* Nav en móvil: el CTA dorado se desbordaba / el brand se partía en 2 líneas.
     Compactamos brand (sin subtítulo, una sola línea) y achicamos el botón
     para que ambos quepan cómodos en una sola fila. */
  .brand { font-size: .9rem; gap: 8px; white-space: nowrap; }
  .brand small { display: none; }
  .brand-mark, .brand-mark.logo-img { width: 38px; height: 38px; border-radius: 9px; font-size: .95rem; }
  .nav-cta .btn { padding: 7px 13px; font-size: .76rem; }
  /* En el home (único con hamburguesa) la navegación la maneja el menú,
     así que ocultamos el CTA del nav para que brand + hamburguesa respiren. */
  .nav-cta:has(~ .nav-toggle) { display: none; }
  /* La hamburguesa heredaba color oscuro (invisible sobre el nav oscuro). */
  .nav-toggle { color: var(--ink); }
}

/* ---------- tarjetas de categoría (home) ---------- */
.cat-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; margin-top: 44px; }
.cat-card { position: relative; display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s; }
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.cat-ic { width: 56px; height: 56px; border-radius: 15px; display: grid; place-items: center; font-size: 1.7rem; background: var(--mint-soft); margin-bottom: 18px; }
.cat-card h3 { margin-bottom: 8px; }
.cat-card p { font-size: .95rem; color: var(--muted); flex-grow: 1; margin: 0; }
.cat-count { font-family: "Sora",sans-serif; font-weight: 600; color: var(--brand); margin-top: 16px; display:inline-flex; align-items:center; gap:6px; transition: gap .2s; }
.cat-card:hover .cat-count { gap: 11px; }

/* ---------- página /peptidos/ ---------- */
.cat-section { padding: clamp(44px,6vw,72px) 0; }
.cat-section + .cat-section { border-top: 1px solid var(--line); }
.cat-head { display: flex; align-items: center; gap: 16px; margin-bottom: 14px; }
.cat-head .pcard-icon { width: 58px; height: 58px; font-size: 1.7rem; }
.cat-head h2 { margin: 0; }
.cat-context { max-width: 78ch; color: var(--ink-2); font-size: 1.02rem; line-height: 1.7; margin-bottom: 32px; }
.cat-context strong { color: var(--brand-deep); font-weight: 700; }
.anchor-nav { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.anchor-nav .chip { text-decoration: none; }

/* ---------- bloque pathway en ficha ---------- */
.pathway-box { background: linear-gradient(135deg, var(--mint-soft), var(--surface)); border: 1px solid var(--line); border-left: 3px solid var(--brand); border-radius: var(--radius-sm); padding: 18px 20px; color: var(--ink-2); }
.pathway-box strong { color: var(--brand-deep); }

@media (max-width: 920px) {
  .cat-cards { grid-template-columns: 1fr; }
}

/* =========================================================
   TEMA OSCURO — ajustes finos de componentes (azul marino)
   ========================================================= */
.nav { background: rgba(8,19,37,.72); }
.nav.scrolled { border-color: var(--line); box-shadow: 0 10px 34px rgba(0,0,0,.45); }

.btn-primary { box-shadow: 0 10px 26px rgba(61,165,240,.30); }
.btn-primary:hover { background: #2E8FE0; box-shadow: 0 16px 34px rgba(61,165,240,.40); }
.btn-ghost { background: rgba(255,255,255,.05); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: rgba(255,255,255,.10); }

/* botón de compra en dorado — el CTA que más debe resaltar */
.nav-cta .btn-primary, .price-card .btn-primary {
  background: linear-gradient(135deg, #F0C260, var(--gold));
  color: #2A1E06; box-shadow: 0 10px 26px rgba(230,178,74,.32);
}
.nav-cta .btn-primary:hover, .price-card .btn-primary:hover {
  background: linear-gradient(135deg, #F4CC74, #EBBC5A); box-shadow: 0 16px 34px rgba(230,178,74,.42);
}

.hero::before {
  background:
    radial-gradient(52% 60% at 80% 2%, rgba(61,165,240,.22), transparent 60%),
    radial-gradient(46% 56% at 6% 94%, rgba(43,196,214,.14), transparent 60%),
    var(--bg);
}
.hero::after { opacity: .30; }
.hero-img { border-color: rgba(255,255,255,.10); }
.hero-card-overlay { background: rgba(13,28,52,.90); }
.hero-visual::before { background: linear-gradient(135deg, rgba(61,165,240,.18), rgba(43,196,214,.12)); }

.chip.active { background: var(--brand); color: #061427; border-color: var(--brand); }

.ev-establecido { background: rgba(52,211,153,.14); }
.ev-clinico     { background: rgba(56,189,248,.14); }
.ev-comunidad   { background: rgba(230,178,74,.16); }
.ev-especulativo{ background: rgba(148,163,184,.16); }

.text-ic, .cat-context strong, .pathway-box strong, .detail-main .micro { color: var(--brand); }
.eyebrow, .eyebrow::before { color: var(--brand); }
.eyebrow::before { background: var(--gold); }

.footer { background: #060F1F; }
.detail-hero { background: linear-gradient(180deg, rgba(61,165,240,.08), var(--bg)); }

/* las representaciones moleculares mantienen fondo crema para fundirse con el render */
.mol-image, .mol-image img { background: #F6F4EC; }

/* =========================================================
   HERO con banner + LIQUID GLASS (inspiración Palantir / Apple)
   ========================================================= */
.hero-banner { padding: 0; min-height: clamp(540px, 78vh, 760px); display: flex; align-items: center; }
.hero-banner::before, .hero-banner::after { display: none; }
.hero-bg { position: absolute; inset: 0; z-index: -2; background-image: url(/assets/images/hero-banner.png); background-size: cover; background-position: 70% center; }
.hero-veil { position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(90deg, var(--bg) 0%, rgba(8,19,37,.92) 26%, rgba(8,19,37,.55) 54%, rgba(8,19,37,.12) 100%),
    linear-gradient(0deg, var(--bg) 0%, transparent 36%);
}
.hero-content { max-width: 560px; padding: 50px 0; }
.hero-banner h1 { text-shadow: 0 2px 24px rgba(0,0,0,.45); }

/* liquid glass reutilizable */
.glass {
  background: rgba(12,26,48,.50);
  backdrop-filter: blur(22px) saturate(150%);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 18px 50px rgba(0,0,0,.42), inset 0 1px 0 rgba(255,255,255,.09);
}

/* nav más translúcido (liquid glass) */
.nav { background: rgba(8,19,37,.55); backdrop-filter: saturate(180%) blur(22px); -webkit-backdrop-filter: saturate(180%) blur(22px); }

/* tarjetas con un toque más glass */
.hero-card-overlay { background: rgba(12,26,48,.55); backdrop-filter: blur(20px) saturate(150%); -webkit-backdrop-filter: blur(20px) saturate(150%); border-color: rgba(255,255,255,.12); }
.price-card { backdrop-filter: blur(14px) saturate(140%); -webkit-backdrop-filter: blur(14px) saturate(140%); }

/* logo claro del tigre en el nav (flota sobre el azul marino, sin medallón) */
.brand-mark.logo-img {
  width: 60px; height: 60px; padding: 0; background: transparent; border-radius: 0;
  object-fit: contain; box-shadow: none;
  filter: drop-shadow(0 2px 10px rgba(0,0,0,.5));
}
.nav .brand { gap: 13px; }
.detail-head .pcard-icon, .cat-head .pcard-icon { } /* sin cambios */

@media (max-width: 920px) {
  .hero-banner { min-height: auto; padding: 44px 0; }
  .hero-bg { background-position: 76% center; }
  .hero-veil { background: linear-gradient(180deg, rgba(8,19,37,.45), rgba(8,19,37,.90) 62%, var(--bg)); }
  .hero-content { max-width: 100%; }
}

/* =========================================================
   Landing GLP-1 — componentes de la puerta de entrada
   ========================================================= */

/* contenedor de lectura más angosto */
.container.narrow { max-width: 820px; }

/* prosa larga legible */
.prose { color: var(--ink-2); font-size: 1.06rem; line-height: 1.75; max-width: 70ch; }
.prose p { color: var(--ink-2); margin: 0 0 1.05rem; }
.prose strong { color: var(--ink); font-weight: 700; }
.prose em { color: var(--ink); }
.prose ul { list-style: none; padding: 0; margin: 0 0 1.2rem; display: grid; gap: 12px; }
.prose ul li { position: relative; padding-left: 26px; }
.prose ul li::before {
  content: ""; position: absolute; left: 0; top: .62em; width: 9px; height: 9px; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--teal)); box-shadow: 0 0 0 4px rgba(43,196,214,.12);
}

/* sección partida imagen + texto */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.split-text .prose { margin-bottom: 22px; }
.split-media img {
  width: 100%; border-radius: var(--radius-lg); border: 1px solid rgba(255,255,255,.10);
  box-shadow: var(--shadow-lg); object-fit: cover;
}
.split-media-left { order: -1; }

/* intro de la tabla de comparación */
.compare-intro { max-width: 70ch; color: var(--ink-2); font-size: 1.04rem; }

/* tarjetas de comparación de los 3 GLP-1 */
.compare-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 26px; align-items: stretch; }
.compare-card {
  position: relative; display: flex; flex-direction: column; gap: 14px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.compare-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.compare-card header h3 { margin: 0 0 3px; }
.compare-card .aka { color: var(--muted); font-size: .85rem; margin: 0; }
.compare-card .badge { align-self: flex-start; }
.compare-card dl { margin: 4px 0 0; display: grid; gap: 14px; }
.compare-card dl div { display: grid; gap: 3px; }
.compare-card dt { font-family: "Sora",sans-serif; font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: var(--brand); }
.compare-card dd { margin: 0; font-size: .96rem; color: var(--ink-2); }
.compare-note { margin: auto 0 0; padding-top: 14px; border-top: 1px solid var(--line-soft); font-size: .86rem; color: var(--muted); }
/* la tarjeta protagonista (Retatrutida) destaca */
.compare-card.is-hero { border-color: var(--brand); box-shadow: 0 0 0 1px var(--brand), 0 22px 50px rgba(0,0,0,.5); background: linear-gradient(170deg, var(--mint-soft), var(--surface)); }
.protag-tag {
  position: absolute; top: -11px; right: 18px;
  font-family: "Sora",sans-serif; font-weight: 700; font-size: .68rem; letter-spacing: .08em; text-transform: uppercase;
  color: #061427; background: linear-gradient(135deg, #F0C260, var(--gold));
  padding: 5px 12px; border-radius: 999px; box-shadow: 0 8px 18px rgba(230,178,74,.32);
}

/* grid de cifras */
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.stat-card {
  display: flex; flex-direction: column; gap: 8px;
  background: linear-gradient(165deg, #102744, #0B1D38); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px 26px; position: relative; overflow: hidden;
  transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.stat-card::before { content: ""; position: absolute; top: -40%; right: -15%; width: 200px; height: 200px; background: radial-gradient(circle, rgba(61,165,240,.14), transparent 70%); pointer-events: none; }
.stat-card:hover { transform: translateY(-5px); border-color: rgba(61,165,240,.40); box-shadow: 0 22px 50px rgba(0,0,0,.5); }
.stat-card > * { position: relative; z-index: 1; }
.stat-value {
  font-family: "Sora",sans-serif; font-weight: 800; line-height: 1;
  font-size: clamp(2.1rem, 4vw, 2.8rem);
  background: linear-gradient(120deg, var(--brand), var(--teal) 60%, var(--petrol));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat-label { font-family: "Sora",sans-serif; font-weight: 600; font-size: 1rem; color: var(--ink); }
.stat-note { font-size: .88rem; color: var(--muted); margin: 0; flex-grow: 1; }
.stat-card .badge { align-self: flex-start; margin-top: 4px; }

/* FAQ acordeón */
.faq-list { display: grid; gap: 12px; }
.faq-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; transition: border-color .25s; }
.faq-item[open] { border-color: rgba(61,165,240,.40); }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 18px 20px;
  font-family: "Sora",sans-serif; font-weight: 600; font-size: 1.02rem; color: var(--ink);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; font-family: "Sora",sans-serif; font-weight: 700; font-size: 1.4rem; color: var(--brand);
  transition: transform .25s var(--ease); line-height: 1;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { color: var(--brand); }
.faq-body { padding: 0 20px 20px; }
.faq-body p { margin: 0; color: var(--ink-2); font-size: .98rem; line-height: 1.7; }

/* lista de fuentes */
.sources-list { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 10px; }
.sources-list li { padding-left: 22px; position: relative; }
.sources-list li::before { content: "↗"; position: absolute; left: 0; color: var(--brand); }
.sources-list a { color: var(--ink-2); font-size: .95rem; transition: color .2s; }
.sources-list a:hover { color: var(--brand); text-decoration: underline; }

@media (max-width: 920px) {
  .split { grid-template-columns: 1fr; gap: 32px; }
  .split-media-left { order: 0; }
  .compare-cards, .stat-grid { grid-template-columns: 1fr; }
}
@media (min-width: 641px) and (max-width: 920px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}

/* tres viales idénticos rotulados */
.three-vials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 12px; max-width: 760px; margin-left: auto; margin-right: auto; }
.vial-fig { margin: 0; display: flex; flex-direction: column; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 14px; }
.vial-fig img { width: 100%; max-width: 150px; aspect-ratio: 1/1; object-fit: contain; border-radius: var(--radius-sm); background: #F4F8FF; }
.vial-fig figcaption { margin-top: 14px; text-align: center; }
.vial-fig figcaption strong { display: block; font-family: "Sora",sans-serif; font-size: 1.02rem; color: var(--ink); }
.vial-fig figcaption span { display: block; font-size: .8rem; color: var(--muted); margin-top: 2px; }
.vials-caption { max-width: 62ch; margin: 22px auto 0; text-align: center; color: var(--muted); font-size: .95rem; }

/* etiqueta de contexto (semanas/dosis) sobre cada cifra */
.stat-context {
  font-family: "Sora",sans-serif; font-weight: 600; font-size: .72rem; letter-spacing: .04em; text-transform: uppercase;
  color: var(--petrol); margin-bottom: 4px;
}
/* stat card destacada (la de grasa hepática) */
.stat-card.is-feature { border-color: var(--brand); box-shadow: 0 0 0 1px rgba(61,165,240,.5), 0 22px 50px rgba(0,0,0,.5); }

/* dos vías de acceso */
.path-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.path-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px; }
.path-card-alt { border-color: rgba(230,178,74,.45); background: linear-gradient(170deg, rgba(230,178,74,.06), var(--surface)); }
.path-num {
  display: inline-block; font-family: "Sora",sans-serif; font-weight: 700; font-size: .74rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--brand); background: rgba(61,165,240,.12); padding: 5px 12px; border-radius: 999px; margin-bottom: 14px;
}
.path-card-alt .path-num { color: var(--gold); background: rgba(230,178,74,.14); }
.path-card h3 { font-size: 1.4rem; margin: 0 0 6px; }
.path-tag { font-family: "Sora",sans-serif; font-weight: 600; color: var(--ink); margin: 0 0 14px; }
.path-card > p { color: var(--ink-2); font-size: .98rem; }
.path-list { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 11px; }
.path-list li { position: relative; padding-left: 28px; font-size: .96rem; color: var(--ink-2); }
.path-list li::before {
  content: "✓"; position: absolute; left: 0; top: 0; color: var(--teal); font-weight: 700;
}
.path-card-alt .path-list li::before { content: "•"; color: var(--gold); font-size: 1.3em; line-height: 1; }
.path-foot { margin: 18px 0 0; padding-top: 16px; border-top: 1px solid var(--line-soft); font-size: .85rem; color: var(--muted); }

/* par de fotos (mujer + plato) */
.media-pair { display: grid; gap: 16px; }
.media-pair img { width: 100%; border-radius: var(--radius-lg); border: 1px solid rgba(255,255,255,.10); box-shadow: var(--shadow-lg); object-fit: cover; }
.media-pair img:first-child { aspect-ratio: 5/4; }
.media-pair img:last-child { aspect-ratio: 5/4; }

@media (max-width: 920px) {
  .path-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .three-vials { grid-template-columns: 1fr; max-width: 280px; }
}

/* antes y después (ilustración) */
.ba-grid { display: grid; grid-template-columns: 1fr auto 1fr; gap: clamp(14px,3vw,32px); align-items: center; max-width: 880px; margin: 42px auto 0; }
.ba-fig { position: relative; margin: 0; }
.ba-fig img { width: 100%; aspect-ratio: 3/4; object-fit: cover; object-position: center top; border-radius: var(--radius-lg); border: 1px solid var(--line); box-shadow: var(--shadow-lg); }
.ba-tag { position: absolute; top: 14px; left: 14px; z-index: 2; font-family: "Sora",sans-serif; font-weight: 700; font-size: .72rem; letter-spacing: .05em; text-transform: uppercase; padding: 6px 12px; border-radius: 999px; box-shadow: 0 6px 16px rgba(0,0,0,.25); }
.ba-antes { background: linear-gradient(135deg,#F0C260,var(--gold)); color: #2a1e06; }
.ba-despues { background: linear-gradient(135deg,var(--teal),var(--petrol)); color: #04221d; }
.ba-arrow { font-size: clamp(2rem,3vw,2.6rem); color: var(--brand); font-weight: 800; line-height: 1; }
.ba-note { max-width: 72ch; margin: 24px auto 0; text-align: center; font-size: .85rem; color: var(--muted); line-height: 1.6; }
.ba-note a { color: var(--brand); font-weight: 600; }
@media (max-width: 600px) {
  .ba-grid { grid-template-columns: 1fr; max-width: 360px; }
  .ba-arrow { transform: rotate(90deg); margin: 2px auto; }
}