/* ENARM Diario — sistema visual */
:root {
  --bg: #f6f5f1; --surface: #ffffff; --surface-2: #f0eee8; --ink: #0e1a2b; --muted: #5b6577; --line: #e4e1d8;
  --brand: #0f5f5a; --brand-600: #0b4a46; --brand-soft: #e3f0ee; --on-brand: #ffffff;
  --gold: #9a6b14; --gold-soft: #fbf3e2; --ok: #15803d; --ok-soft: #e7f5ec; --bad: #b42318; --bad-soft: #fdeceb;
  --shadow: 0 1px 2px rgba(14, 26, 43, .04), 0 4px 16px rgba(14, 26, 43, .06);
  --shadow-lg: 0 2px 4px rgba(14, 26, 43, .04), 0 18px 40px rgba(14, 26, 43, .10);
  --radius: 16px;
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  /* compatibilidad con nombres anteriores */
  --text: var(--ink); --card: var(--surface); --border: var(--line); --accent: var(--brand); --accent-soft: var(--brand-soft);
  --promo: var(--gold-soft); --promo-text: var(--gold);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1220; --surface: #111a2b; --surface-2: #16213a; --ink: #e7ecf4; --muted: #98a3b8; --line: #22304a;
    --brand: #3cc4b4; --brand-600: #5fd6c8; --brand-soft: #0f2e31; --on-brand: #04201e;
    --gold: #e3b357; --gold-soft: #2a2214; --ok: #4ade80; --ok-soft: #12291c; --bad: #f87171; --bad-soft: #2e1517;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3); --shadow-lg: 0 18px 40px rgba(0, 0, 0, .35);
  }
}
:root[data-theme="dark"] {
  --bg: #0b1220; --surface: #111a2b; --surface-2: #16213a; --ink: #e7ecf4; --muted: #98a3b8; --line: #22304a;
  --brand: #3cc4b4; --brand-600: #5fd6c8; --brand-soft: #0f2e31; --on-brand: #04201e;
  --gold: #e3b357; --gold-soft: #2a2214; --ok: #4ade80; --ok-soft: #12291c; --bad: #f87171; --bad-soft: #2e1517;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3); --shadow-lg: 0 18px 40px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.6 var(--sans); font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}
a { color: var(--brand); text-underline-offset: 3px; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 10px; letter-spacing: -.01em; }
h1, h2 { font-family: var(--serif); font-weight: 600; font-optical-sizing: auto; }
h1 { font-size: 34px; }
h2 { font-size: 24px; }
h3 { font-size: 17px; font-weight: 650; }
p { margin: 0 0 12px; }
svg.i { width: 20px; height: 20px; flex: none; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; vertical-align: -4px; }

/* Barra superior */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: saturate(160%) blur(12px); backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.topbar-in {
  max-width: 760px; margin: 0 auto; padding: 12px 16px;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.logo-mark { width: 30px; height: 30px; border-radius: 9px; background: var(--brand); display: grid; place-items: center; }
.logo-mark svg { width: 18px; height: 18px; stroke: var(--on-brand); fill: none; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.logo small { font-weight: 500; color: var(--muted); font-size: 13px; }
#nav { display: flex; align-items: center; gap: 16px; }
.navlink { text-decoration: none; font-weight: 600; font-size: 15px; color: var(--ink); }
.navlink:hover { color: var(--brand); }

main { max-width: 760px; margin: 0 auto; padding: 24px 16px 56px; }
footer { max-width: 760px; margin: 0 auto; padding: 24px 16px 40px; font-size: 13px; color: var(--muted); border-top: 1px solid var(--line); }
footer a { color: var(--muted); }

/* Bloques base */
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; margin-bottom: 16px; box-shadow: var(--shadow);
}
.center { text-align: center; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--brand);
  background: var(--brand-soft); padding: 5px 12px; border-radius: 99px; margin-bottom: 16px;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 25%, transparent); }
.section-title { margin: 36px 0 6px; }
.section-sub { color: var(--muted); margin: 0 0 18px; }

/* Botones */
.btn {
  display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; text-align: center; text-decoration: none;
  font: inherit; font-weight: 650; font-size: 16px; border: 1px solid transparent; border-radius: 12px;
  padding: 14px 18px; margin-top: 12px; background: var(--brand); color: var(--on-brand); cursor: pointer;
  box-shadow: 0 1px 2px rgba(14, 26, 43, .08), inset 0 1px 0 rgba(255, 255, 255, .12);
  transition: background .15s, transform .05s, box-shadow .15s, border-color .15s;
}
.btn:hover { background: var(--brand-600); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .6; cursor: default; }
.btn.ghost { background: var(--surface); color: var(--ink); border-color: var(--line); box-shadow: var(--shadow); }
.btn.ghost:hover { border-color: var(--brand); color: var(--brand); }
.btn.inline { display: inline-flex; width: auto; padding: 9px 16px; margin: 0; font-size: 15px; }
.row { display: flex; gap: 10px; }
.row > * { flex: 1; }
.cta-row { display: flex; gap: 10px; flex-wrap: wrap; }
.cta-row .btn { width: auto; flex: 1 1 220px; }

/* Portada */
.hero { padding: 20px 0 8px; }
.hero h1 { font-size: 46px; line-height: 1.08; letter-spacing: -.02em; margin-bottom: 16px; }
.hero h1 em { font-style: italic; color: var(--brand); }
.hero .lead { font-size: 19px; color: var(--muted); max-width: 600px; margin-bottom: 8px; }
.trust { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 18px 0 0; padding: 0; list-style: none; font-size: 14px; color: var(--muted); }
.trust li { display: flex; align-items: center; gap: 6px; }
.trust svg.i { width: 16px; height: 16px; color: var(--ok); stroke-width: 2.4; }

.preview { position: relative; margin: 32px 0 8px; }
.preview .card { box-shadow: var(--shadow-lg); margin: 0; }
.preview-label { position: absolute; top: -12px; right: 18px; z-index: 1; background: var(--ink); color: var(--bg); font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 99px; }
.preview .opt { pointer-events: none; }

.promo {
  display: flex; gap: 12px; align-items: flex-start;
  background: var(--gold-soft); color: var(--ink); border: 1px solid color-mix(in srgb, var(--gold) 30%, transparent);
  border-radius: 14px; padding: 14px 16px; margin-bottom: 16px; font-size: 15px;
}
.promo b { color: var(--gold); }
.promo svg.i { color: var(--gold); margin-top: 2px; }

.features { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 16px; }
.feature { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.feature .ico, .tile .ico {
  width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand); margin-bottom: 12px; font-size: 20px;
}
.feature b { display: block; margin-bottom: 4px; font-size: 16px; }
.feature span { font-size: 14.5px; color: var(--muted); }

.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-items: stretch; }
.plan { display: flex; flex-direction: column; position: relative; }
.plan h3 { font-size: 15px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.plan ul { list-style: none; padding: 0; margin: 14px 0 0; flex: 1; font-size: 15px; }
.plan li { display: flex; gap: 8px; margin-bottom: 8px; }
.plan li::before { content: ""; flex: none; width: 18px; height: 18px; margin-top: 3px; border-radius: 50%; background: var(--brand-soft) no-repeat center / 12px url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230f5f5a' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E"); }
.plan.premium { background: var(--ink); color: var(--bg); border-color: var(--ink); box-shadow: var(--shadow-lg); }
.plan.premium h3, .plan.premium .muted, .plan.premium .price small, .plan.premium .strike { color: color-mix(in srgb, var(--bg) 70%, transparent); }
.plan.premium li::before { background-color: color-mix(in srgb, var(--bg) 14%, transparent); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%233cc4b4' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E"); }
.plan.premium .btn { background: #3cc4b4; color: #04201e; }
.plan.premium .btn:hover { background: #5fd6c8; }
.badge-top { position: absolute; top: -11px; left: 22px; background: #3cc4b4; color: #04201e; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 99px; }
.price { font-family: var(--serif); font-size: 40px; font-weight: 600; line-height: 1.1; margin-top: 4px; }
.price small { font-family: var(--sans); font-size: 14px; font-weight: 500; color: var(--muted); }
.strike { text-decoration: line-through; color: var(--muted); font-size: 15px; margin-left: 6px; font-family: var(--sans); font-weight: 500; }
details.faq { border-bottom: 1px solid var(--line); padding: 14px 0; }
details.faq:first-child { padding-top: 0; }
details.faq:last-child { border-bottom: 0; padding-bottom: 0; }
details.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; color: var(--muted); font-weight: 400; font-size: 22px; line-height: 1; }
details.faq[open] summary::after { content: "–"; }
details.faq p { margin: 8px 0 0; color: var(--muted); }

/* Preguntas */
.quiz-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; font-size: 15px; }
.timer { font-variant-numeric: tabular-nums; font-weight: 700; background: var(--surface); border: 1px solid var(--line); border-radius: 99px; padding: 4px 12px; }
.bar { height: 6px; background: var(--line); border-radius: 99px; overflow: hidden; margin-bottom: 18px; }
.bar > div { height: 100%; background: var(--brand); border-radius: 99px; transition: width .35s ease; }
.tag {
  display: inline-block; font-size: 12px; font-weight: 650; letter-spacing: .02em; color: var(--brand);
  background: var(--brand-soft); padding: 3px 10px; border-radius: 99px; margin-bottom: 12px;
}
.q { font-size: 18px; line-height: 1.55; font-weight: 550; margin: 0 0 18px; }
.opt {
  display: flex; align-items: flex-start; gap: 12px; width: 100%; text-align: left; font: inherit; color: var(--ink);
  background: var(--surface); border: 1.5px solid var(--line); border-radius: 12px;
  padding: 12px 14px; margin-bottom: 10px; cursor: pointer; transition: border-color .15s, background .15s, transform .05s;
}
.opt .L {
  flex: none; width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center;
  font-size: 14px; font-weight: 700; background: var(--surface-2); color: var(--muted); transition: inherit;
}
.opt .t { flex: 1; padding-top: 2px; }
.opt:hover:not(:disabled) { border-color: var(--brand); background: color-mix(in srgb, var(--brand-soft) 45%, var(--surface)); }
.opt:hover:not(:disabled) .L { background: var(--brand); color: var(--on-brand); }
.opt:active:not(:disabled) { transform: scale(.995); }
.opt:disabled { cursor: default; }
.opt.ok { border-color: var(--ok); background: var(--ok-soft); }
.opt.ok .L { background: var(--ok); color: #fff; }
.opt.bad { border-color: var(--bad); background: var(--bad-soft); }
.opt.bad .L { background: var(--bad); color: #fff; }
.exp { margin-top: 8px; padding: 16px; border-radius: 12px; background: var(--surface-2); font-size: 15.5px; border-left: 4px solid var(--brand); }
.exp.is-ok { border-left-color: var(--ok); }
.exp.is-bad { border-left-color: var(--bad); }
.exp .verdict { display: block; font-weight: 700; margin-bottom: 4px; }
.exp.is-ok .verdict { color: var(--ok); }
.exp.is-bad .verdict { color: var(--bad); }
.score { font-family: var(--serif); font-size: 60px; font-weight: 600; margin: 4px 0; line-height: 1.1; }
.streak-big { font-size: 18px; font-weight: 600; }

details.review { border-top: 1px solid var(--line); padding: 12px 0; }
details.review summary { cursor: pointer; }
details.review p { margin: 8px 0 0; font-size: 15px; }
.okc { color: var(--ok); font-weight: 650; }
.badc { color: var(--bad); font-weight: 650; }

/* Panel */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; }
.stat { background: var(--surface-2); border-radius: 12px; padding: 14px 10px; text-align: center; }
.stat b { display: block; font-family: var(--serif); font-size: 26px; font-weight: 600; line-height: 1.2; }
.stat span { font-size: 12.5px; color: var(--muted); }
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.tile {
  display: block; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; text-decoration: none; color: var(--ink); box-shadow: var(--shadow);
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.tile:hover { border-color: var(--brand); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.tile b { display: block; font-size: 16px; }
.tile span { font-size: 13.5px; color: var(--muted); }
.list a {
  display: flex; justify-content: space-between; align-items: center; padding: 14px 4px; border-bottom: 1px solid var(--line);
  text-decoration: none; color: var(--ink); font-weight: 550;
}
.list a:hover { color: var(--brand); }
.list a:last-child { border-bottom: 0; }
.list a span { color: var(--muted); font-weight: 400; font-size: 14px; }
.area-row { margin-bottom: 14px; }
.area-row .lbl { display: flex; justify-content: space-between; font-size: 14px; margin-bottom: 5px; }
.area-row .bar { margin-bottom: 0; }
.area-row .bar > div.ok { background: var(--ok); }
.area-row .bar > div.mid { background: #d4a017; }
.area-row .bar > div.low { background: var(--bad); }

/* Formularios */
label { display: block; font-weight: 600; font-size: 14px; margin: 14px 0 6px; }
input, select {
  width: 100%; font: inherit; color: var(--ink); background: var(--surface);
  border: 1.5px solid var(--line); border-radius: 10px; padding: 12px 14px; transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand) 15%, transparent); }
.tabs { display: flex; gap: 6px; background: var(--surface-2); padding: 4px; border-radius: 12px; margin-bottom: 8px; }
.tabs button {
  flex: 1; font: inherit; font-weight: 600; border: 0; border-radius: 9px; padding: 10px;
  background: transparent; color: var(--muted); cursor: pointer;
}
.tabs button.on { background: var(--surface); color: var(--ink); box-shadow: var(--shadow); }
.msg { margin-top: 12px; padding: 12px 14px; border-radius: 10px; font-size: 15px; }
.msg.err { background: var(--bad-soft); color: var(--bad); }
.msg.info { background: var(--brand-soft); }
.notice { background: var(--gold-soft); color: var(--ink); border: 1px solid color-mix(in srgb, var(--gold) 30%, transparent); border-radius: 12px; padding: 12px 14px; margin-bottom: 16px; font-size: 15px; }

.spinner {
  width: 34px; height: 34px; margin: 32px auto; border-radius: 50%;
  border: 3px solid var(--line); border-top-color: var(--brand); animation: spin .9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Compartir y recordatorios */
.btn.share-wa { background: #1fa855; color: #fff; }
.btn.share-wa:hover { background: #18914a; }
.reminder { border: 1.5px solid var(--brand); }

/* Caso clínico, notas, porcentajes, perlas */
.case { background: var(--surface-2); border-radius: 12px; padding: 14px 16px; margin-bottom: 16px; border: 1px solid var(--line); }
.case p { margin: 6px 0 0; font-size: 15.5px; line-height: 1.6; }
.case-tag { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--brand); }
.case-tag svg.i { width: 15px; height: 15px; }
.note { font-size: 14px; color: var(--muted); margin: -4px 0 12px 40px; padding-left: 12px; border-left: 2px solid var(--line); }
.note-ok { color: var(--ok); border-left-color: var(--ok); }
.pct { display: block; font-size: 12px; color: var(--muted); margin-top: 4px; font-weight: 500; }
.pearl { background: var(--gold-soft); border: 1px solid color-mix(in srgb, var(--gold) 28%, transparent); border-radius: 12px; padding: 14px 16px; margin-top: 14px; }
.pearl > b { display: inline-flex; align-items: center; gap: 6px; color: var(--gold); font-size: 13px; letter-spacing: .04em; text-transform: uppercase; }
.pearl > b svg.i { width: 16px; height: 16px; }
.pearl p { margin: 6px 0 0; }
.src { display: flex; gap: 6px; align-items: flex-start; font-size: 13px; color: var(--muted); margin: 12px 0 0; }
.src svg.i { width: 15px; height: 15px; margin-top: 2px; }
.src a { color: var(--muted); }
.link-btn { background: none; border: 0; padding: 0; margin-top: 10px; font: inherit; font-size: 14px; font-weight: 650; color: var(--gold); cursor: pointer; }
.link-btn:hover { text-decoration: underline; }

@media (max-width: 560px) {
  .features, .plans { grid-template-columns: 1fr; }
  .plans { gap: 22px; }
  h1 { font-size: 28px; }
  .hero h1 { font-size: 34px; }
  .hero .lead { font-size: 17px; }
  .card { padding: 18px; }
  .logo small { display: none; }
}

/* ───────── Página de ventas ───────── */
body.is-landing main { max-width: 1120px; padding-top: 8px; }
body.is-landing .topbar-in, body.is-landing footer { max-width: 1120px; }
.lp-hero { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; padding: 40px 0 24px; }
.lp-hero h1 { font-size: 54px; line-height: 1.04; letter-spacing: -.025em; margin-bottom: 18px; }
.lp-hero h1 em { font-style: italic; color: var(--brand); }
.lp-hero .lead { font-size: 19px; color: var(--muted); max-width: 540px; margin-bottom: 22px; }
.lp-hero .preview { margin: 0; }
.lp-hero .preview .card { transform: rotate(.6deg); }
.btn-lg { font-size: 17px; padding: 16px 22px; border-radius: 14px; }
.btn svg.i { width: 18px; height: 18px; stroke-width: 2.2; }
.micro { font-size: 13.5px; color: var(--muted); margin: 10px 0 0; }
.lp-hero .cta-row .btn { flex: 0 1 auto; width: auto; }

.lp-band { margin: 24px 0 8px; padding: 22px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: center; }
.band-title { font-size: 13px; font-weight: 650; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.chip { font-size: 14px; font-weight: 550; padding: 6px 14px; border-radius: 99px; background: var(--surface); border: 1px solid var(--line); }

.lp-section { padding: 48px 0 8px; }
.lp-section.narrow { max-width: 760px; margin: 0 auto; }
.lp-section .section-title { font-size: 34px; margin-top: 0; }
.lp-section .section-sub { font-size: 17px; margin-bottom: 28px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: s; }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.step .num { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--ink); color: var(--bg); font-weight: 700; margin-bottom: 14px; font-family: var(--serif); }
.step b { display: block; font-size: 17px; margin-bottom: 6px; }
.step span { color: var(--muted); font-size: 15px; }

.features.three { grid-template-columns: repeat(3, 1fr); }
.plans.three { grid-template-columns: repeat(3, 1fr); margin-top: 26px; }
.plans.three .plan.premium { transform: translateY(-8px); }
.per-day { font-size: 14px; color: var(--muted); margin: 4px 0 0; }
.plan.premium .per-day { color: #3cc4b4; font-weight: 600; }
.pay-note { display: flex; justify-content: center; align-items: center; gap: 8px; color: var(--muted); font-size: 14px; margin: 20px 0 0; }
.pay-note svg.i { width: 16px; height: 16px; }

.lp-final { margin: 56px 0 8px; padding: 56px 24px; text-align: center; border-radius: 24px; background: var(--ink); color: var(--bg);
  background-image: radial-gradient(600px 240px at 50% -20%, rgba(60, 196, 180, .35), transparent 70%); }
.lp-final h2 { font-size: 38px; margin-bottom: 10px; color: var(--bg); }
.lp-final p { color: color-mix(in srgb, var(--bg) 72%, transparent); font-size: 17px; margin-bottom: 18px; }
.lp-final .btn { display: inline-flex; width: auto; background: #3cc4b4; color: #04201e; }
.lp-final .btn:hover { background: #5fd6c8; }

.sticky-cta { display: none; }

@media (max-width: 900px) {
  .lp-hero { grid-template-columns: 1fr; gap: 32px; padding-top: 20px; }
  .lp-hero .preview .card { transform: none; }
  .steps, .features.three, .plans.three { grid-template-columns: 1fr; }
  .plans.three .plan.premium { transform: none; }
}
@media (max-width: 560px) {
  .lp-hero h1 { font-size: 36px; }
  .lp-hero .lead { font-size: 17px; }
  .lp-hero .cta-row .btn { width: 100%; flex: 1 1 100%; }
  .lp-section { padding-top: 36px; }
  .lp-section .section-title { font-size: 28px; }
  .lp-final { padding: 40px 20px; border-radius: 18px; }
  .lp-final h2 { font-size: 28px; }
  .sticky-cta { display: block; position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
    background: color-mix(in srgb, var(--bg) 88%, transparent); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); border-top: 1px solid var(--line); }
  .sticky-cta .btn { margin: 0; }
  body.is-landing footer { padding-bottom: 96px; }
}

/* Guía de instalación */
.howto { list-style: none; padding: 0; margin: 14px 0 0; }
.howto li { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 14px; }
.howto li:last-child { margin-bottom: 0; }
.howto .num { flex: none; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; background: var(--brand); color: var(--on-brand); font-weight: 700; font-size: 14px; }
.howto div { padding-top: 2px; }

/* Casos raros */
.wtf-card { display: grid; grid-template-columns: 1.3fr 1fr; gap: 28px; align-items: center; padding: 32px; border-radius: 24px;
  background: linear-gradient(135deg, #2b1055 0%, #6b2c91 55%, #c2410c 120%); color: #fff; box-shadow: var(--shadow-lg); }
.wtf-card h2 { font-size: 34px; color: #fff; margin: 10px 0; }
.wtf-card p { color: rgba(255, 255, 255, .82); font-size: 16.5px; }
.wtf-card .btn { display: inline-flex; width: auto; background: #fff; color: #2b1055; }
.wtf-card .btn:hover { background: #f3e8ff; }
.wtf-tag { display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: .04em; padding: 4px 12px; border-radius: 99px; background: rgba(255, 255, 255, .16); }
.wtf-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.wtf-list li { background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .16); border-radius: 12px; padding: 10px 14px; font-weight: 550; font-size: 15px; }
.tile-wtf { background: linear-gradient(135deg, #2b1055, #6b2c91); border-color: transparent; color: #fff; }
.tile-wtf span { color: rgba(255, 255, 255, .8); }
.tile-wtf .ico { background: rgba(255, 255, 255, .16); }
@media (max-width: 900px) { .wtf-card { grid-template-columns: 1fr; padding: 24px; } .wtf-card h2 { font-size: 28px; } }

/* Código de descuento */
.coupon-row { display: flex; gap: 8px; }
.coupon-row input { flex: 1; text-transform: uppercase; }
.coupon-row .btn { flex: none; }