/* Sistemas 4K - hoja de estilos global */

:root {
  color-scheme: light dark;

  --brand-500: #0f6cf5;
  --brand-400: #3d8bff;
  --brand-300: #7cb0ff;
  --accent-500: #00c48c;
  --accent-400: #23e0a6;

  --bg: #ffffff;
  --bg-soft: #f4f6fb;
  --bg-elev: #ffffff;
  --surface-border: #dfe4ee;
  --text: #10161f;
  --text-soft: #4d5868;
  --text-mute: #6b7686;
  --shadow-sm: 0 1px 2px rgb(16 22 31 / 6%), 0 4px 12px rgb(16 22 31 / 6%);
  --shadow-lg: 0 12px 40px rgb(16 22 31 / 12%);

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  --step--1: clamp(.82rem, .8rem + .1vi, .9rem);
  --step-0: clamp(1rem, .96rem + .2vi, 1.075rem);
  --step-1: clamp(1.2rem, 1.1rem + .5vi, 1.45rem);
  --step-2: clamp(1.5rem, 1.3rem + 1vi, 2rem);
  --step-3: clamp(2rem, 1.6rem + 2vi, 3rem);
  --step-4: clamp(2.4rem, 1.8rem + 3.4vi, 4.1rem);

  --gutter: clamp(1rem, .6rem + 2vi, 2rem);
  --measure: 68ch;
  --shell: 1180px;

  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "Cascadia Code", Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #080b12;
    --bg-soft: #0d121c;
    --bg-elev: #111826;
    --surface-border: #1e2839;
    --text: #eef2f8;
    --text-soft: #b3bdcd;
    --text-mute: #8a95a7;
    --shadow-sm: 0 1px 2px rgb(0 0 0 / 40%), 0 6px 18px rgb(0 0 0 / 30%);
    --shadow-lg: 0 18px 50px rgb(0 0 0 / 50%);
  }
}

:root[data-theme="dark"] {
  --bg: #080b12;
  --bg-soft: #0d121c;
  --bg-elev: #111826;
  --surface-border: #1e2839;
  --text: #eef2f8;
  --text-soft: #b3bdcd;
  --text-mute: #8a95a7;
  --shadow-sm: 0 1px 2px rgb(0 0 0 / 40%), 0 6px 18px rgb(0 0 0 / 30%);
  --shadow-lg: 0 18px 50px rgb(0 0 0 / 50%);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: var(--step-0);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg, video { max-inline-size: 100%; block-size: auto; }
h1, h2, h3, h4 { line-height: 1.15; text-wrap: balance; margin-block: 0 .5em; letter-spacing: -.02em; }
h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-1); }
p  { text-wrap: pretty; margin-block: 0 1em; }
a  { color: var(--brand-500); text-underline-offset: .18em; }

:where(a, button, input, select, textarea, summary):focus-visible {
  outline: 2px solid var(--brand-500);
  outline-offset: 3px;
  border-radius: 6px;
}

:root[data-theme="dark"] a { color: var(--brand-300); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) a { color: var(--brand-300); }
}

.skip-link {
  position: absolute;
  inset-inline-start: -9999px;
  inset-block-start: 0;
  z-index: 100;
  background: var(--brand-500);
  color: #fff;
  padding: .7rem 1.1rem;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { inset-inline-start: 0; }

.shell {
  inline-size: min(100% - (var(--gutter) * 2), var(--shell));
  margin-inline: auto;
}

.section { padding-block: clamp(3.5rem, 2rem + 6vi, 6.5rem); }
.section--soft { background: var(--bg-soft); }
.section__head { max-inline-size: var(--measure); margin-block-end: 2.5rem; }
.section__head p { color: var(--text-soft); font-size: var(--step-1); margin-block-end: 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: var(--step--1);
  font-weight: 650;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--brand-500);
  margin-block-end: .9rem;
}
.eyebrow::before {
  content: "";
  inline-size: 1.6rem;
  block-size: 2px;
  background: currentColor;
  border-radius: 2px;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--bg) 85%, transparent);
  backdrop-filter: blur(14px) saturate(1.4);
  border-block-end: 1px solid var(--surface-border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-block-size: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -.03em;
  color: var(--text);
  text-decoration: none;
}
.brand__mark {
  display: grid;
  place-content: center;
  inline-size: 34px;
  block-size: 34px;
  border-radius: 10px;
  background: linear-gradient(140deg, var(--brand-500), var(--accent-500));
  color: #fff;
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: -.04em;
}
.nav { margin-inline-start: auto; }
.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(.5rem, .2rem + 1vi, 1.4rem);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav__list a {
  color: var(--text-soft);
  text-decoration: none;
  font-size: var(--step--1);
  font-weight: 600;
  padding: .4rem .2rem;
}
.nav__list a:hover, .nav__list a[aria-current="page"] { color: var(--text); }
.header__actions { display: flex; align-items: center; gap: .5rem; }

.theme-toggle {
  display: grid;
  place-content: center;
  inline-size: 38px;
  block-size: 38px;
  border-radius: 50%;
  border: 1px solid var(--surface-border);
  background: var(--bg-elev);
  color: var(--text-soft);
  cursor: pointer;
}
.theme-toggle:hover { color: var(--text); }

.nav-toggle {
  display: none;
  inline-size: 38px;
  block-size: 38px;
  border-radius: 10px;
  border: 1px solid var(--surface-border);
  background: var(--bg-elev);
  color: var(--text);
  cursor: pointer;
}

@media (width < 860px) {
  .nav-toggle { display: grid; place-content: center; }
  .nav {
    position: fixed;
    inset: 68px 0 auto 0;
    background: var(--bg);
    border-block-end: 1px solid var(--surface-border);
    padding: 1rem var(--gutter) 1.4rem;
    box-shadow: var(--shadow-lg);
  }
  .nav__list { flex-direction: column; align-items: stretch; gap: .2rem; }
  .nav__list a { display: block; padding: .7rem .2rem; font-size: var(--step-0); }
  .header__actions .btn { display: none; }
}

@media (width >= 860px) {
  .nav[hidden] { display: block; }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .72rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font: inherit;
  font-size: var(--step--1);
  font-weight: 650;
  text-decoration: none;
  cursor: pointer;
  transition: transform .15s ease, background-color .15s ease, border-color .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--brand-500); color: #fff; }
.btn--primary:hover { background: color-mix(in oklab, var(--brand-500) 85%, #000); }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--surface-border); }
.btn--ghost:hover { border-color: var(--brand-500); color: var(--brand-500); }
.btn--wa { background: var(--accent-500); color: #04120d; }
.btn--wa:hover { background: var(--accent-400); }
.btn--block { inline-size: 100%; }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  overflow: clip;
  padding-block: clamp(3rem, 1.5rem + 7vi, 6rem) clamp(3rem, 2rem + 5vi, 5.5rem);
  background:
    radial-gradient(70% 90% at 88% 8%, color-mix(in oklab, var(--accent-500) 22%, transparent), transparent 60%),
    radial-gradient(75% 95% at 6% 0%, color-mix(in oklab, var(--brand-500) 26%, transparent), transparent 62%),
    var(--bg);
}
.hero__grid {
  display: grid;
  gap: clamp(2rem, 1rem + 4vi, 3.5rem);
  grid-template-columns: 1fr;
  align-items: center;
}
@media (width >= 940px) { .hero__grid { grid-template-columns: 1.05fr .95fr; } }
.hero p.lead {
  font-size: var(--step-1);
  color: var(--text-soft);
  max-inline-size: 56ch;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: .75rem; margin-block: 1.8rem 1.6rem; }
.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .9rem;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: var(--step--1);
  color: var(--text-mute);
}
.hero__trust li { display: flex; align-items: center; gap: .4rem; }

.panel {
  background: var(--bg-elev);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 1.4rem;
}
.doc-mock { display: grid; gap: .9rem; font-size: var(--step--1); }
.doc-mock__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block-end: .9rem;
  border-block-end: 1px dashed var(--surface-border);
}
.doc-mock__status {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .25rem .7rem;
  border-radius: 999px;
  background: color-mix(in oklab, var(--accent-500) 18%, transparent);
  color: color-mix(in oklab, var(--accent-500) 78%, var(--text));
  font-weight: 650;
}
.doc-mock__dot {
  inline-size: 8px; block-size: 8px; border-radius: 50%;
  background: var(--accent-500);
}
.doc-mock__rows { display: grid; gap: .55rem; margin: 0; }
.doc-mock__rows > div { display: flex; justify-content: space-between; gap: 1rem; }
.doc-mock__rows dt { color: var(--text-mute); margin: 0; }
.doc-mock__rows dd { margin: 0; font-weight: 600; font-family: var(--font-mono); font-size: .85em; }
.doc-mock__cdc {
  font-family: var(--font-mono);
  font-size: .72rem;
  word-break: break-all;
  color: var(--text-mute);
  background: var(--bg-soft);
  border-radius: var(--radius-sm);
  padding: .6rem .7rem;
}

/* ---------- Metricas ---------- */

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.metric {
  background: var(--bg-elev);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 1.3rem;
}
.metric strong {
  display: block;
  font-size: var(--step-2);
  letter-spacing: -.03em;
  line-height: 1.1;
}
.metric span { color: var(--text-mute); font-size: var(--step--1); }

/* ---------- Cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.1rem;
}
.card {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  background: var(--bg-elev);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: var(--shadow-sm);
}
.card h3 { margin-block-end: 0; }
.card p { color: var(--text-soft); font-size: var(--step--1); margin-block-end: 0; }
.card__icon {
  display: grid;
  place-content: center;
  inline-size: 42px;
  block-size: 42px;
  border-radius: 12px;
  background: color-mix(in oklab, var(--brand-500) 14%, transparent);
  color: var(--brand-500);
  margin-block-end: .4rem;
}

/* ---------- Pasos ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.1rem;
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 0;
}
.steps li {
  counter-increment: step;
  background: var(--bg-elev);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 1.4rem;
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  font-weight: 700;
  color: var(--brand-500);
  margin-block-end: .5rem;
}
.steps h3 { font-size: var(--step-0); }
.steps p { color: var(--text-soft); font-size: var(--step--1); margin: 0; }

/* ---------- Planes ---------- */

.plans {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(275px, 1fr));
  gap: 1.2rem;
  align-items: start;
}
.plan {
  display: flex;
  flex-direction: column;
  background: var(--bg-elev);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  box-shadow: var(--shadow-sm);
}
.plan--featured {
  border-color: var(--brand-500);
  box-shadow: var(--shadow-lg);
  position: relative;
}
.plan__tag {
  position: absolute;
  inset-block-start: -.75rem;
  inset-inline-start: 1.6rem;
  background: var(--brand-500);
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .25rem .7rem;
  border-radius: 999px;
}
.plan__price {
  display: flex;
  align-items: baseline;
  gap: .35rem;
  margin-block: .8rem 1rem;
}
.plan__price strong { font-size: var(--step-2); letter-spacing: -.03em; }
.plan__price span { color: var(--text-mute); font-size: var(--step--1); }
.plan ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.4rem;
  display: grid;
  gap: .55rem;
  font-size: var(--step--1);
  color: var(--text-soft);
}
.plan ul li { display: flex; gap: .55rem; align-items: flex-start; }
.plan ul li::before { content: "\2713"; color: var(--accent-500); font-weight: 700; }
.plan .btn { margin-block-start: auto; }

/* ---------- Tienda ---------- */

.shop-layout {
  display: grid;
  gap: 1.6rem;
  grid-template-columns: 1fr;
  align-items: start;
}
@media (width >= 900px) { .shop-layout { grid-template-columns: 250px 1fr; } }

.filters {
  background: var(--bg-elev);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 1.2rem;
  display: grid;
  gap: 1.2rem;
}
@media (width >= 900px) { .filters { position: sticky; inset-block-start: 88px; } }
.filters h2 { font-size: var(--step-0); margin: 0; }
.filters fieldset { border: 0; padding: 0; margin: 0; display: grid; gap: .45rem; }
.filters legend {
  font-size: var(--step--1);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--text-mute);
  padding: 0;
  margin-block-end: .3rem;
}
.filters label {
  display: flex;
  align-items: center;
  gap: .55rem;
  font-size: var(--step--1);
  color: var(--text-soft);
  cursor: pointer;
}
.filters input[type="search"], .filters select {
  inline-size: 100%;
  padding: .6rem .75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--surface-border);
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: var(--step--1);
}

.shop-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1rem;
  align-items: center;
  justify-content: space-between;
  margin-block-end: 1.1rem;
  color: var(--text-mute);
  font-size: var(--step--1);
}

.products {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(235px, 1fr));
  gap: 1.1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.product {
  display: grid;
  grid-template-rows: auto auto auto 1fr auto;
  gap: .5rem;
  background: var(--bg-elev);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 1.1rem;
  box-shadow: var(--shadow-sm);
  content-visibility: auto;
  contain-intrinsic-size: auto 340px;
}
.product__media {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-sm);
  background:
    radial-gradient(60% 70% at 30% 20%, color-mix(in oklab, var(--brand-500) 22%, transparent), transparent 70%),
    var(--bg-soft);
  display: grid;
  place-content: center;
  font-size: 2.6rem;
  border: 1px solid var(--surface-border);
}
.product__cat {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.product h3 { font-size: var(--step-0); margin: 0; }
.product p {
  margin: 0;
  color: var(--text-soft);
  font-size: var(--step--1);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  line-clamp: 2;
  overflow: clip;
}
.product__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  margin-block-start: .5rem;
}
.product__price { font-weight: 700; font-size: var(--step-1); letter-spacing: -.02em; }
.product__stock { font-size: .72rem; color: var(--accent-500); font-weight: 650; }
.product__stock--out { color: var(--text-mute); }
.empty-state {
  border: 1px dashed var(--surface-border);
  border-radius: var(--radius);
  padding: 2.5rem 1.5rem;
  text-align: center;
  color: var(--text-mute);
}

/* ---------- FAQ ---------- */

.faq { display: grid; gap: .7rem; max-inline-size: var(--measure); }
.faq details {
  background: var(--bg-elev);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
}
.faq summary {
  cursor: pointer;
  font-weight: 650;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--brand-500); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "\2212"; }
.faq p { color: var(--text-soft); font-size: var(--step--1); margin-block: .8rem 0; }

/* ---------- CTA + contacto ---------- */

.cta-band {
  background: linear-gradient(135deg, var(--brand-500), color-mix(in oklab, var(--accent-500) 70%, var(--brand-500)));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: clamp(1.8rem, 1rem + 3vi, 3rem);
  display: grid;
  gap: 1.2rem;
  align-items: center;
}
@media (width >= 820px) { .cta-band { grid-template-columns: 1fr auto; } }
.cta-band h2 { margin: 0; font-size: var(--step-2); }
.cta-band p { margin: .4rem 0 0; opacity: .92; max-inline-size: 55ch; }
.cta-band .btn--primary { background: #fff; color: var(--brand-500); }
.cta-band .btn--primary:hover { background: #eef2f8; }
.cta-band .btn--ghost { color: #fff; border-color: rgb(255 255 255 / 55%); }
.cta-band .btn--ghost:hover { color: #fff; border-color: #fff; }
.cta-band__actions { display: flex; flex-wrap: wrap; gap: .7rem; }

.contact-grid { display: grid; gap: 1.6rem; }
@media (width >= 900px) { .contact-grid { grid-template-columns: 1fr 1fr; } }
.form-grid { display: grid; gap: .9rem; }
@media (width >= 560px) {
  .form-grid { grid-template-columns: 1fr 1fr; }
  .form-grid .span-2 { grid-column: 1 / -1; }
}
.field { display: grid; gap: .35rem; }
.field label { font-size: var(--step--1); font-weight: 650; }
.field input, .field select, .field textarea {
  inline-size: 100%;
  padding: .7rem .8rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--surface-border);
  background: var(--bg-elev);
  color: var(--text);
  font: inherit;
  font-size: var(--step--1);
}
.field textarea { min-block-size: 120px; resize: vertical; }
.field input:user-invalid, .field textarea:user-invalid { border-color: #e5484d; }
.form-note { font-size: var(--step--1); color: var(--text-mute); }
.contact-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 1rem; }
.contact-list li { display: grid; gap: .1rem; }
.contact-list strong { font-size: .72rem; text-transform: uppercase; letter-spacing: .07em; color: var(--text-mute); }
.contact-list a { font-weight: 600; text-decoration: none; }

/* ---------- Footer ---------- */

.site-footer {
  border-block-start: 1px solid var(--surface-border);
  background: var(--bg-soft);
  padding-block: 3rem 2rem;
  font-size: var(--step--1);
  color: var(--text-soft);
}
.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}
.site-footer h3 {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-mute);
}
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .45rem; }
.site-footer a { color: var(--text-soft); text-decoration: none; }
.site-footer a:hover { color: var(--text); }
.footer-bottom {
  margin-block-start: 2.2rem;
  padding-block-start: 1.2rem;
  border-block-start: 1px solid var(--surface-border);
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1rem;
  justify-content: space-between;
  color: var(--text-mute);
}

.wa-float {
  position: fixed;
  inset-block-end: 1.2rem;
  inset-inline-end: 1.2rem;
  z-index: 40;
  inline-size: 54px;
  block-size: 54px;
  border-radius: 50%;
  display: grid;
  place-content: center;
  background: #25d366;
  color: #04120d;
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}
.visually-hidden {
  position: absolute;
  inline-size: 1px; block-size: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip-path: inset(50%); white-space: nowrap;
}