/* ==========================================================================
   Altiva3D — Neo-Forge Design System
   Mobile-first, con mejoras progresivas para tablet (≥768px) y desktop (≥1024px)
   ========================================================================== */

:root {
  --surface: #0b1326;
  --surface-dim: #0b1326;
  --surface-bright: #31394d;
  --surface-container-lowest: #060e20;
  --surface-container-low: #131b2e;
  --surface-container: #171f33;
  --surface-container-high: #222a3d;
  --surface-container-highest: #2d3449;
  --on-surface: #dae2fd;
  --on-surface-variant: #b9caca;
  --outline: #849495;
  --outline-variant: #3a494a;

  --primary: #e9feff;
  --on-primary: #003739;
  --primary-container: #00f5ff;
  --on-primary-container: #006c71;

  --secondary: #ecb2ff;
  --on-secondary: #520071;
  --secondary-container: #cf5cff;
  --on-secondary-container: #480063;

  --tertiary: #f2ffda;
  --on-tertiary: #203600;
  --tertiary-container: #a3f421;
  --on-tertiary-container: #446c00;
  --tertiary-fixed-dim: #8fdb00;

  --background: #0b1326;
  --on-background: #dae2fd;

  --font-headline: 'Sora', sans-serif;
  --font-body: 'Hanken Grotesk', sans-serif;
  --font-label: 'JetBrains Mono', monospace;

  --radius-sm: 0.25rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --container-max: 1280px;
  --gutter: 24px;
  --margin-mobile: 16px;
  --stack-sm: 8px;
  --stack-md: 16px;
  --stack-lg: 40px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--background);
  color: var(--on-background);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100dvh;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font: inherit; cursor: pointer; }

h1, h2, h3 { margin: 0; font-family: var(--font-headline); font-weight: 800; letter-spacing: -0.02em; color: var(--primary); }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--margin-mobile);
}
@media (min-width: 1024px) {
  .container { padding-inline: var(--gutter); }
}

.icon {
  width: 1.5em;
  height: 1.5em;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.glass-panel {
  background: rgba(30, 41, 59, 0.4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
}

.glow-cyan { box-shadow: 0 10px 30px -10px rgba(0, 245, 255, 0.3); }
.glow-lime { box-shadow: 0 10px 30px -10px rgba(163, 244, 33, 0.4); }

.text-gradient {
  background: linear-gradient(to right, #00dce5, #63f7ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Media placeholder — reemplaza style="--img" por una imagen real cuando esté disponible */
.media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at top left, rgba(0, 245, 255, 0.18), transparent 55%),
    radial-gradient(ellipse at bottom right, rgba(207, 92, 255, 0.18), transparent 55%),
    var(--surface-container-high);
}
.media::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 24px 24px;
}
.media .icon { position: relative; width: 3rem; height: 3rem; color: rgba(255,255,255,0.35); z-index: 1; }

.media--photo::before { display: none; }
.media--photo img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0;
  filter: grayscale(0.2) brightness(0.75) contrast(1.1);
}
.media--photo::after {
  content: '';
  position: absolute; inset: 0; z-index: 1;
  background:
    radial-gradient(ellipse at top left, rgba(0, 245, 255, 0.18), transparent 55%),
    radial-gradient(ellipse at bottom right, rgba(207, 92, 255, 0.18), transparent 55%),
    linear-gradient(to top, rgba(11,19,38,0.75), rgba(11,19,38,0.1) 60%);
}
.media--photo .tag { z-index: 2; }

/* ---------------------------- Top App Bar ---------------------------- */
.topbar {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 50;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: var(--margin-mobile);
  background: rgba(11, 19, 38, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.topbar-left { display: flex; align-items: center; gap: 16px; }
.topbar button.icon-btn {
  background: none; border: none; color: var(--on-surface-variant);
  display: flex; padding: 6px; border-radius: var(--radius);
}
.topbar button.icon-btn:hover { background: rgba(255,255,255,0.05); }
.brand {
  font-family: var(--font-headline);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--primary);
}
.desktop-nav { display: none; }
@media (min-width: 1024px) {
  .desktop-nav {
    display: flex;
    gap: 32px;
    font-family: var(--font-label);
    font-size: 13px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }
  .desktop-nav a { color: var(--on-surface-variant); transition: color 0.2s; }
  .desktop-nav a:hover { color: var(--primary-container); }
  .topbar { padding-inline: var(--gutter); }
  .topbar button.menu-toggle { display: none; }
}
.topbar-cta { display: none; }
@media (min-width: 1024px) {
  .topbar-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--tertiary-container);
    color: var(--on-tertiary-container);
    font-family: var(--font-label);
    font-size: 13px;
    font-weight: 700;
    padding: 10px 20px;
    border-radius: var(--radius-md);
  }
}

/* --------------------------- Nav Drawer (mobile) --------------------------- */
.nav-drawer {
  position: fixed;
  inset-block: 0;
  left: 0;
  z-index: 60;
  width: 80%;
  max-width: 320px;
  background: var(--surface-container-high);
  box-shadow: 20px 0 50px rgba(0,0,0,0.5);
  padding: var(--stack-md);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}
.nav-drawer.open { transform: translateX(0); }
.nav-drawer-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--stack-lg); }
.nav-drawer nav { display: flex; flex-direction: column; gap: var(--stack-sm); }
.nav-drawer nav a {
  display: flex; align-items: center; gap: 16px;
  padding: 12px; border-radius: var(--radius);
  font-family: var(--font-label); font-size: 13px; letter-spacing: 0.05em;
  color: var(--on-surface);
}
.nav-drawer nav a.active { background: var(--secondary-container); color: var(--on-secondary-container); font-weight: 700; }
.nav-drawer nav a:not(.active):hover { background: rgba(0,220,229,0.08); }
.scrim {
  position: fixed; inset: 0; z-index: 55;
  background: rgba(0,0,0,0.6);
  opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
}
.scrim.open { opacity: 1; pointer-events: auto; }
@media (min-width: 1024px) {
  .nav-drawer, .scrim { display: none; }
}

/* --------------------------------- Main --------------------------------- */
main { padding-top: 64px; padding-bottom: 24px; display: flex; flex-direction: column; gap: var(--stack-lg); }

section { padding-inline: var(--margin-mobile); }
@media (min-width: 1024px) { section { padding-inline: var(--gutter); } }

.section-inner {
  max-width: var(--container-max);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--stack-md);
}

/* ----------------------------------- Hero ----------------------------------- */
.hero { position: relative; padding-top: var(--stack-lg); }
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(ellipse at top right, rgba(0,245,255,0.15), var(--background) 60%);
}
.hero .media { height: 256px; box-shadow: 0 20px 50px -12px rgba(0,0,0,0.5); }
.hero h1 { font-size: 40px; line-height: 1.1; }
.hero p { max-width: 32rem; color: var(--on-surface-variant); }
.hero-actions { display: flex; flex-direction: column; gap: 16px; margin-top: 8px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-label); font-size: 13px; letter-spacing: 0.05em; font-weight: 700;
  padding: 16px 24px; border-radius: var(--radius-lg); border: none;
  transition: filter 0.2s, transform 0.2s;
}
.btn:hover { filter: brightness(1.1); }
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--primary-container); color: var(--on-primary-container); }
.btn-lime { background: var(--tertiary-container); color: var(--on-tertiary-container); }
.btn-ghost { background: var(--surface-container); color: var(--on-surface); border: 1px solid rgba(255,255,255,0.08); }

@media (min-width: 768px) {
  .hero-actions { flex-direction: row; }
}
@media (min-width: 1024px) {
  .hero .section-inner { flex-direction: row-reverse; align-items: center; gap: var(--gutter); }
  .hero .media { flex: 1; height: 480px; }
  .hero-copy { flex: 1; }
  .hero h1 { font-size: 56px; }
  .hero-actions { flex-direction: row; }
}

/* -------------------------------------- Trust bar -------------------------------------- */
.trust-items {
  display: flex; flex-direction: column; gap: 10px;
  list-style: none; margin: 0; padding: 0;
}
.trust-items li {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-label); font-size: 12px; letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--on-surface-variant);
}
.trust-items .icon { width: 1.1em; height: 1.1em; color: var(--tertiary-container); flex-shrink: 0; }
@media (min-width: 640px) {
  .trust-items { flex-direction: row; justify-content: center; flex-wrap: wrap; gap: 32px; }
}

/* -------------------------------- Bento grid -------------------------------- */
.bento-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
@media (min-width: 768px) { .bento-grid { grid-template-columns: repeat(4, 1fr); } }

.bento-card {
  aspect-ratio: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px; text-align: center; padding: 16px;
  transition: background 0.2s;
}
.bento-card:hover { background: rgba(255,255,255,0.05); }
.bento-card .icon-badge {
  width: 48px; height: 48px; border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.2s;
}
.bento-card:hover .icon-badge { transform: scale(1.1); }
.bento-card span.label {
  font-family: var(--font-label); font-size: 12px; letter-spacing: 0.05em;
  text-transform: uppercase; color: var(--on-surface);
}

/* ---------------------------------- Chips row ---------------------------------- */
.chip-row { display: flex; gap: 16px; overflow-x: auto; padding-bottom: 8px; scroll-snap-type: x mandatory; }
.chip-row .chip {
  flex: none; width: 160px; scroll-snap-align: center;
  padding: 16px; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 8px;
}
.chip span.label { font-family: var(--font-label); font-size: 12px; text-transform: uppercase; }

/* ------------------------------ Chip carousel (infinite) ------------------------------ */
.chip-carousel {
  overflow: hidden; width: 100%;
  -webkit-mask-image: linear-gradient(to right, transparent, black 24px, black calc(100% - 24px), transparent);
  mask-image: linear-gradient(to right, transparent, black 24px, black calc(100% - 24px), transparent);
}
.chip-track {
  display: flex; gap: 16px; width: max-content;
  animation: chip-marquee 16s linear infinite;
}
.chip-track .chip {
  flex: none; width: 160px;
  padding: 16px; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 8px;
}
.chip-carousel:hover .chip-track, .chip-carousel:focus-within .chip-track { animation-play-state: paused; }
@keyframes chip-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .chip-track { animation: none; }
}

.media--crossfade img {
  animation: media-crossfade 9s ease-in-out infinite;
}
.media--crossfade img:nth-of-type(2) {
  animation-delay: -4.5s;
}
@keyframes media-crossfade {
  0%, 40% { opacity: 1; }
  50%, 90% { opacity: 0; }
  100% { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .media--crossfade img { animation: none; opacity: 0; }
  .media--crossfade img:first-of-type { opacity: 1; }
}

/* ------------------------------- Product grid ------------------------------- */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
@media (min-width: 768px) { .product-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .product-grid { grid-template-columns: repeat(4, 1fr); } }

.product-card { overflow: hidden; display: flex; flex-direction: column; }
.product-card .media { height: 128px; border-radius: 0; }
.product-card .tag {
  position: absolute; top: 8px; left: 8px;
  font-size: 11px; font-weight: 700; padding: 4px 8px; border-radius: var(--radius-sm);
}
.product-card .tag.cyan { background: var(--primary-container); color: var(--on-primary-container); }
.product-card .tag.purple { background: var(--secondary-container); color: var(--on-secondary-container); }
.product-card .tag.lime { background: var(--tertiary-container); color: var(--on-tertiary-container); }
.product-card .tag.neutral { background: var(--surface-container-highest); color: var(--on-surface); border: 1px solid var(--outline-variant); }
.product-card .body { padding: 12px; display: flex; flex-direction: column; gap: 4px; }
.product-card .name { font-family: var(--font-label); font-weight: 700; font-size: 13px; }
.product-card .price { color: var(--primary-container); }
.product-card .btn-detail {
  margin-top: 8px; font-size: 12px; padding: 8px; text-align: center;
  background: var(--surface-container); border: 1px solid var(--outline-variant); border-radius: var(--radius-sm);
  color: var(--on-surface); transition: background 0.2s;
}
.product-card .btn-detail:hover { background: rgba(255,255,255,0.05); }

/* ------------------------------- Steps / How it works ------------------------------- */
.steps { display: flex; flex-direction: column; gap: 16px; }
.step { display: flex; align-items: center; gap: 16px; padding: 16px; }
.step .num {
  width: 40px; height: 40px; flex-shrink: 0; border-radius: var(--radius-full);
  background: rgba(0,245,255,0.15); color: var(--primary-container);
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-family: var(--font-label);
}
.step h3 { font-family: var(--font-label); font-size: 13px; letter-spacing: 0.05em; }
.step p { margin: 4px 0 0; font-size: 13px; color: var(--on-surface-variant); }

@media (min-width: 768px) { .steps { flex-direction: row; } .step { flex-direction: column; text-align: center; flex: 1; } }

/* ------------------------------------ Empresas ------------------------------------ */
.empresas { padding: 24px; }
.empresas ul { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.empresas li { display: flex; align-items: center; gap: 8px; color: var(--on-surface-variant); font-size: 14px; }
.empresas .icon { color: var(--primary-container); width: 1.1em; height: 1.1em; }

/* -------------------------------------- Social -------------------------------------- */
.social-row { display: flex; gap: 16px; justify-content: center; }
.social-circle {
  width: 48px; height: 48px; border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; transition: background 0.2s;
}
.social-circle:hover { background: rgba(0,245,255,0.2); }

/* --------------------------------------- FAQ --------------------------------------- */
.faq-list { display: flex; flex-direction: column; gap: 8px; }
.faq-item { padding: 16px; }
.faq-item summary {
  list-style: none; display: flex; justify-content: space-between; align-items: center; cursor: pointer;
  font-family: var(--font-label); font-weight: 700; font-size: 13px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .icon { transition: transform 0.2s; }
.faq-item[open] summary .icon { transform: rotate(180deg); }
.faq-item p { margin: 8px 0 0; font-size: 13px; color: var(--on-surface-variant); }

/* ------------------------------------- Final CTA ------------------------------------- */
.final-cta {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: var(--stack-md);
  padding-block: var(--stack-lg);
  background: rgba(34, 42, 61, 0.5);
}
.final-cta h2 { font-size: 32px; }

.whatsapp-fab {
  position: fixed; bottom: max(20px, env(safe-area-inset-bottom) + 12px); right: 16px; z-index: 40;
  width: 56px; height: 56px; border-radius: var(--radius-full);
  background: var(--tertiary-container); color: var(--on-tertiary-container);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 30px -10px rgba(163,244,33,0.5);
  transition: transform 0.2s;
}
.whatsapp-fab:hover { transform: scale(1.06); }
@media (min-width: 1024px) { .whatsapp-fab { bottom: 32px; } }

/* -------------------------------------- Footer -------------------------------------- */
footer {
  padding-block: var(--stack-lg);
  background: var(--surface-container-lowest);
  border-top: 1px solid rgba(58,73,74,0.3);
  display: flex; flex-direction: column; align-items: center; gap: var(--stack-md);
  padding-inline: var(--margin-mobile);
  text-align: center;
}
footer .brand { font-size: 24px; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; font-family: var(--font-label); font-size: 13px; }
.footer-links a, .footer-links button { color: var(--on-surface-variant); text-decoration: underline; transition: color 0.2s; cursor: pointer; }
.footer-links a:hover, .footer-links button:hover { color: var(--primary-container); }
footer .copy { color: var(--tertiary-fixed-dim); font-size: 14px; margin-top: 8px; }

/* -------------------------------- Section headings -------------------------------- */
.section-inner h2 { font-size: 24px; }
.section-inner > p.lead { color: var(--on-surface-variant); margin: 0; }
@media (min-width: 1024px) { .section-inner h2 { font-size: 32px; } }

.two-col { display: flex; flex-direction: column; gap: var(--stack-md); }
@media (min-width: 1024px) { .two-col { flex-direction: row; align-items: center; } .two-col > * { flex: 1; } }

/* -------------------------------- Legal pages -------------------------------- */
.legal { max-width: 760px; margin-inline: auto; display: flex; flex-direction: column; gap: 16px; padding-block: var(--stack-md) var(--stack-lg); }
.legal .updated { font-family: var(--font-label); font-size: 12px; letter-spacing: 0.05em; color: var(--on-surface-variant); text-transform: uppercase; }
.legal h1 { font-size: 28px; }
.legal h2 { font-size: 18px; margin-top: 8px; color: var(--primary); }
.legal p, .legal li { color: var(--on-surface-variant); font-size: 15px; line-height: 1.7; }
.legal ul, .legal ol { padding-left: 20px; display: flex; flex-direction: column; gap: 6px; }
.legal ul { list-style: disc; }
.legal ol { list-style: decimal; }
.legal strong { color: var(--on-surface); }
.legal .notice {
  padding: 16px; border-radius: var(--radius); border: 1px solid var(--outline-variant);
  background: rgba(0,245,255,0.06); font-size: 14px;
}
@media (min-width: 1024px) { .legal h1 { font-size: 36px; } }

/* ------------------------------------ Cookie banner ------------------------------------ */
.cookie-banner {
  position: fixed; inset-inline: 0; bottom: 0; z-index: 70;
  background: rgba(6, 14, 32, 0.97);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(255,255,255,0.1);
  border-radius: 0;
  padding: 16px;
  padding-bottom: max(16px, env(safe-area-inset-bottom));
  display: flex; flex-direction: column; gap: 12px;
  transform: translateY(110%);
  transition: transform 0.35s ease;
}
.cookie-banner.open { transform: translateY(0); }
.cookie-banner p { margin: 0; font-size: 13px; color: var(--on-surface-variant); line-height: 1.5; }
.cookie-banner a { color: var(--primary-container); text-decoration: underline; }
.cookie-banner-actions { display: flex; gap: 10px; }
.cookie-banner-actions .btn { flex: 1; padding: 12px 16px; font-size: 12px; }
body.cookie-banner-visible .whatsapp-fab { display: none; }

/* -------------------------------------- Lightbox -------------------------------------- */
.lightbox-trigger { cursor: zoom-in; }
.lightbox-trigger::after {
  content: '⤢';
  position: absolute; top: 8px; right: 8px; z-index: 2;
  width: 28px; height: 28px; border-radius: var(--radius-full);
  background: rgba(6,14,32,0.65); color: var(--on-surface);
  display: flex; align-items: center; justify-content: center; font-size: 14px;
  opacity: 0; transition: opacity 0.2s;
}
.lightbox-trigger:hover::after, .lightbox-trigger:focus-visible::after { opacity: 1; }
.lightbox-trigger:focus-visible { outline: 2px solid var(--primary-container); outline-offset: -2px; }

.lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(6, 14, 32, 0.95);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s ease;
}
.lightbox.open { opacity: 1; pointer-events: auto; }
.lightbox img { max-width: 100%; max-height: 100%; border-radius: var(--radius-lg); box-shadow: 0 20px 60px rgba(0,0,0,0.6); }
.lightbox-close {
  position: fixed; top: 16px; right: 16px; z-index: 201;
  width: 44px; height: 44px; border-radius: var(--radius-full);
  background: rgba(23,31,51,0.9); color: var(--on-surface); border: 1px solid rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
}
.lightbox-close:hover { background: rgba(255,255,255,0.15); }

@media (min-width: 640px) {
  .cookie-banner { flex-direction: row; align-items: center; justify-content: space-between; gap: 24px; }
  .cookie-banner p { max-width: 640px; }
  .cookie-banner-actions { flex-shrink: 0; }
  .cookie-banner-actions .btn { flex: none; }
}