/* ==========================================================================
   IKSODA SERVICES — hoja de estilo del sitio
   Derivada del componente de diseño "IKSODA Services.dc.html"
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */
:root {
  --ink: #0c0e0f;
  --ink-2: #131719;
  --copper: #c8873f;
  --copper-light: #e0a75f;
  --copper-dark: #a66c2a;
  --bone: #f4f1ec;

  --on-dark: var(--bone);
  --on-dark-70: rgba(244, 241, 236, 0.7);
  --on-dark-62: rgba(244, 241, 236, 0.62);
  --on-dark-45: rgba(244, 241, 236, 0.45);
  --hairline-dark: rgba(244, 241, 236, 0.1);
  --hairline-dark-strong: rgba(244, 241, 236, 0.22);

  --on-light-72: rgba(12, 14, 15, 0.72);
  --on-light-60: rgba(12, 14, 15, 0.6);
  --on-light-45: rgba(12, 14, 15, 0.45);
  --hairline-light: rgba(12, 14, 15, 0.1);

  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --sans: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;

  --shell: 1180px;
  --gutter: 48px;
  --header-h: 77px;
  --radius: 4px;
  --pill: 999px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* --------------------------------------------------------------------------
   2. Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--on-dark);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--copper);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

a:hover {
  color: var(--copper-light);
}

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

/* Párrafos que actúan como etiquetas o cifras: sin márgenes heredados.
   Las reglas específicas más abajo reponen el espaciado que sí toca. */
.eyebrow,
.badge,
.letters,
.stat__value,
.stat__label,
.value__num,
.unit__tag,
.mark__caption,
.swatch__label,
.channel__kind,
.channel__name,
.channel__what,
.channel__action,
.beta__kicker,
.footer__name,
.footer__copy {
  margin: 0;
}

::selection {
  background: var(--copper);
  color: var(--ink);
}

:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 100;
  padding: 12px 20px;
  border-radius: var(--pill);
  background: var(--copper);
  color: var(--ink);
  font-weight: 700;
  font-size: 14px;
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 16px;
  color: var(--ink);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   3. Utilidades de layout
   -------------------------------------------------------------------------- */
.shell {
  max-width: var(--shell);
  margin-inline: auto;
}

.section {
  padding: 118px var(--gutter);
}

.section--hairline {
  border-bottom: 1px solid var(--hairline-dark);
}

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 22px;
}

/* Rejilla de filetes: el fondo se ve por los huecos de 1px del grid */
.hairgrid {
  display: grid;
  gap: 1px;
  background: var(--hairline-dark);
  border: 1px solid var(--hairline-dark);
}

.hairgrid > * {
  background: var(--ink);
}

/* --------------------------------------------------------------------------
   4. Botones
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 54px;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: var(--pill);
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn__arrow {
  font-size: 17px;
  transition: transform 0.2s var(--ease);
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}

.btn--primary {
  background: var(--copper);
  color: var(--ink);
}

.btn--primary:hover {
  background: var(--copper-light);
  color: var(--ink);
}

.btn--ghost {
  border-color: var(--hairline-dark-strong);
  color: var(--on-dark);
  font-weight: 600;
}

.btn--ghost:hover {
  border-color: var(--on-dark);
  color: var(--on-dark);
}

.btn--ink {
  height: 48px;
  padding: 0 24px;
  background: var(--ink);
  color: var(--bone);
  font-weight: 600;
}

.btn--ink:hover {
  background: var(--copper-dark);
  color: var(--bone);
}

.btn--sm {
  height: 48px;
  padding: 0 24px;
}

/* --------------------------------------------------------------------------
   5. Cabecera
   -------------------------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px var(--gutter);
  background: rgba(12, 14, 15, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(244, 241, 236, 0.08);
  transition: background-color 0.3s var(--ease);
}

.header.is-scrolled {
  background: rgba(12, 14, 15, 0.95);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--on-dark);
  flex-shrink: 0;
}

.brand:hover {
  color: var(--on-dark);
}

.brand__word {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.26em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 13.5px;
  letter-spacing: 0.04em;
}

.nav__link {
  color: var(--on-dark-62);
  position: relative;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 1px;
  background: var(--copper);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--on-dark);
}

.nav__link.is-active::after {
  transform: scaleX(1);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 20px;
  border: 1px solid rgba(200, 135, 63, 0.5);
  border-radius: var(--pill);
  color: var(--copper);
  font-weight: 600;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease);
}

.nav__cta:hover {
  background: var(--copper);
  border-color: var(--copper);
  color: var(--ink);
}

/* Botón hamburguesa (sólo móvil) */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--hairline-dark-strong);
  border-radius: var(--radius);
  background: transparent;
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  width: 18px;
  height: 1.5px;
  margin: 4px auto;
  background: var(--bone);
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   6. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: 132px var(--gutter) 120px;
  border-bottom: 1px solid rgba(244, 241, 236, 0.08);
  background: radial-gradient(
    1100px 520px at 78% 8%,
    rgba(200, 135, 63, 0.16),
    transparent 62%
  );
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: 72px;
  align-items: end;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px 7px 10px;
  border: 1px solid rgba(244, 241, 236, 0.14);
  border-radius: var(--pill);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--on-dark-62);
  margin-bottom: 34px;
}

.badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--copper);
  flex-shrink: 0;
}

.badge__dot--pulse {
  animation: iks-pulse 2.4s ease-in-out infinite;
}

.hero__title {
  margin: 0;
  font-size: clamp(40px, 6.4vw, 92px);
  line-height: 0.98;
  letter-spacing: -0.02em;
}

.hero__title em {
  font-style: italic;
  color: var(--copper);
}

.hero__lead {
  margin: 34px 0 0;
  max-width: 640px;
  font-size: 18px;
  line-height: 1.65;
  color: var(--on-dark-70);
}

.hero__lead strong {
  color: var(--on-dark);
  font-weight: 600;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 44px;
}

.stat {
  padding: 26px 24px;
}

.stat__value {
  font-family: var(--serif);
  font-size: 40px;
  line-height: 1;
  color: var(--copper);
}

.stat__label {
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(244, 241, 236, 0.55);
}

/* --------------------------------------------------------------------------
   7. Nosotros
   -------------------------------------------------------------------------- */
.about__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 80px;
  align-items: start;
}

.about__title {
  margin: 0;
  font-size: clamp(32px, 4.2vw, 60px);
  line-height: 1.05;
}

.letters {
  display: flex;
  gap: 10px;
  margin-top: 40px;
}

.letters__tile {
  width: 46px;
  height: 46px;
  border-radius: 3px;
  background: rgba(244, 241, 236, 0.08);
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-size: 22px;
  color: var(--on-dark);
}

.letters__tile--accent {
  background: rgba(200, 135, 63, 0.18);
  color: var(--copper);
}

.letters__caption {
  margin: 16px 0 0;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--on-dark-45);
}

.prose {
  font-size: 17px;
  line-height: 1.75;
  color: rgba(244, 241, 236, 0.72);
  display: grid;
  gap: 22px;
}

.prose p {
  margin: 0;
}

.prose strong {
  color: var(--on-dark);
  font-weight: 600;
}

.prose__lead {
  font-size: 21px;
  color: var(--on-dark);
  font-weight: 500;
}

.values {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 88px;
}

.value {
  padding: 40px 34px;
}

.value__num {
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--copper);
}

.value__title {
  margin: 18px 0 12px;
  font-family: var(--sans);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.value__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--on-dark-62);
}

/* --------------------------------------------------------------------------
   8. Unidades de negocio (bloque claro)
   -------------------------------------------------------------------------- */
.units {
  background: var(--bone);
  color: var(--ink);
}

.units .eyebrow {
  color: var(--copper-dark);
}

.units__head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 68px;
}

.units__title {
  margin: 0;
  font-size: clamp(32px, 5vw, 68px);
  line-height: 1.02;
}

.units__note {
  margin: 0;
  max-width: 330px;
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--on-light-60);
}

.units__list {
  display: grid;
  gap: 24px;
}

.unit {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  gap: 56px;
  padding: 48px;
  background: #fff;
  border: 1px solid var(--hairline-light);
  border-radius: var(--radius);
}

.unit--dark {
  background: var(--ink);
  color: var(--on-dark);
  border-color: transparent;
}

.unit__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 28px;
  padding: 0 12px;
  border-radius: var(--pill);
  background: rgba(12, 14, 15, 0.06);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-light-60);
}

.unit__tag--beta {
  background: rgba(200, 135, 63, 0.16);
  color: var(--copper);
}

.unit__logo {
  width: 100%;
  max-width: 300px;
  height: auto;
  margin: 26px 0 14px;
}

.unit__logo--avertis {
  max-width: 270px;
  margin: 14px 0 10px -18px;
}

.unit__claim {
  margin: 0;
  font-size: 16px;
  font-style: italic;
  color: var(--copper-dark);
}

.unit--dark .unit__claim {
  color: var(--copper);
}

.unit__text {
  margin: 0 0 18px;
  font-size: 16.5px;
  line-height: 1.7;
  color: var(--on-light-72);
}

.unit__text:last-of-type {
  margin-bottom: 28px;
}

.unit--dark .unit__text {
  color: rgba(244, 241, 236, 0.72);
}

.unit__text strong {
  color: var(--ink);
  font-weight: 600;
}

.unit--dark .unit__text strong {
  color: var(--on-dark);
}

.unit__text--emphasis {
  color: var(--ink);
  font-weight: 600;
}

.unit__features {
  margin: 0 0 32px;
  padding: 24px 0 0;
  list-style: none;
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--hairline-light);
}

.unit--dark .unit__features {
  border-top-color: rgba(244, 241, 236, 0.14);
}

.unit__features--two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
}

.unit__features li {
  display: flex;
  gap: 12px;
  font-size: 15.5px;
  color: rgba(12, 14, 15, 0.78);
}

.unit--dark .unit__features li {
  color: rgba(244, 241, 236, 0.78);
}

.unit__features li::before {
  content: "—";
  color: var(--copper-dark);
  flex-shrink: 0;
}

.unit--dark .unit__features li::before {
  color: var(--copper);
}

/* --------------------------------------------------------------------------
   9. Marca
   -------------------------------------------------------------------------- */
.brandkit__title {
  margin: 0 0 14px;
  font-size: clamp(30px, 4vw, 56px);
  line-height: 1.05;
}

.brandkit__lead {
  margin: 0 0 56px;
  max-width: 620px;
  font-size: 16.5px;
  line-height: 1.7;
  color: rgba(244, 241, 236, 0.65);
}

.marks {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mark {
  padding: 56px 40px;
  display: grid;
  gap: 34px;
  place-items: center;
  text-align: center;
}

.mark--light {
  background: var(--bone);
}

.mark__caption {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--on-dark-45);
}

.mark--light .mark__caption {
  color: var(--on-light-45);
}

.lockup {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lockup__text {
  text-align: left;
}

.lockup__name {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  line-height: 1;
}

.lockup__sub {
  margin-top: 7px;
  font-size: 10.5px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: rgba(244, 241, 236, 0.5);
}

.lockup--vertical {
  display: grid;
  gap: 18px;
  place-items: center;
}

.lockup--vertical .lockup__name {
  font-size: 20px;
  color: var(--ink);
}

.swatches {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: -1px;
  border-top: 0;
}

.swatch {
  padding: 26px 24px;
}

.swatch__chip {
  height: 40px;
  border-radius: 3px;
}

.swatch__chip--outline {
  background: var(--ink);
  border: 1px solid rgba(244, 241, 236, 0.2);
}

.swatch__chip--type {
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-size: 20px;
}

.swatch__label {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--on-dark-62);
}

/* --------------------------------------------------------------------------
   10. Contacto
   -------------------------------------------------------------------------- */
.contact {
  padding: 118px var(--gutter) 0;
}

.contact__title {
  margin: 0;
  max-width: 900px;
  font-size: clamp(32px, 4.6vw, 64px);
  line-height: 1.03;
}

.contact__lead {
  margin: 26px 0 34px;
  max-width: 620px;
  font-size: 17px;
  line-height: 1.7;
  color: rgba(244, 241, 236, 0.68);
}

.contact__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 40px;
  margin-bottom: 56px;
  padding-top: 26px;
  border-top: 1px solid var(--hairline-dark);
  font-size: 15px;
  color: var(--on-dark-62);
}

.contact__meta > div {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.contact__meta dt {
  color: var(--copper);
  margin: 0;
}

.contact__meta dd {
  margin: 0;
}

.channels {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.channel {
  padding: 38px 30px 34px;
  display: grid;
  align-content: space-between;
  gap: 40px;
  color: var(--on-dark);
  min-height: 230px;
  transition: background-color 0.2s var(--ease);
}

.channel:hover {
  background: var(--ink-2);
  color: var(--on-dark);
}

.channel__kind {
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--copper);
}

.channel__name {
  margin-top: 14px;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.channel__what {
  margin-top: 8px;
  font-size: 15px;
  color: var(--on-dark-62);
}

.channel__action {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14.5px;
  color: var(--copper);
  font-weight: 600;
}

.channel__action span {
  transition: transform 0.2s var(--ease);
}

.channel:hover .channel__action span {
  transform: translateX(3px);
}

/* --------------------------------------------------------------------------
   11. Formulario beta
   -------------------------------------------------------------------------- */
.beta {
  margin-top: 96px;
  padding: 56px 56px 52px;
  border: 1px solid rgba(200, 135, 63, 0.35);
  border-radius: var(--radius);
  background: radial-gradient(
    700px 320px at 20% 0%,
    rgba(200, 135, 63, 0.12),
    transparent 70%
  );
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}

.beta__kicker {
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--copper);
}

.beta__title {
  margin: 18px 0 14px;
  font-size: 38px;
  line-height: 1.08;
}

.beta__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(244, 241, 236, 0.65);
}

.beta__form {
  display: grid;
  gap: 14px;
}

.field input {
  width: 100%;
  height: 52px;
  padding: 0 18px;
  border-radius: 3px;
  border: 1px solid rgba(244, 241, 236, 0.2);
  background: rgba(244, 241, 236, 0.04);
  color: var(--on-dark);
  font-family: var(--sans);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.field input::placeholder {
  color: var(--on-dark-45);
}

.field input:focus {
  border-color: var(--copper);
  background: rgba(244, 241, 236, 0.06);
}

.field input:user-invalid {
  border-color: #d9634f;
}

.beta__submit {
  width: 100%;
  margin-top: 6px;
}

.beta__note {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--on-dark-45);
  min-height: 20px;
}

.beta__note--ok {
  color: var(--copper);
}

/* --------------------------------------------------------------------------
   12. Pie
   -------------------------------------------------------------------------- */
.footer {
  margin-top: 110px;
  padding: 56px var(--gutter) 44px;
  border-top: 1px solid rgba(244, 241, 236, 0.08);
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: center;
  justify-content: space-between;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer__name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.footer__legal {
  margin: 6px 0 0;
  font-size: 13.5px;
  color: rgba(244, 241, 236, 0.5);
  max-width: 60ch;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  font-size: 13.5px;
}

.footer__copy {
  font-size: 13px;
  color: rgba(244, 241, 236, 0.42);
}

/* --------------------------------------------------------------------------
   13. Botón flotante de WhatsApp
   -------------------------------------------------------------------------- */
.wa-fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 52px;
  padding: 0 22px 0 18px;
  border-radius: var(--pill);
  background: var(--copper);
  color: var(--ink);
  font-size: 14.5px;
  font-weight: 700;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease),
    visibility 0.3s, background-color 0.2s var(--ease);
}

.wa-fab.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.wa-fab:hover {
  background: var(--copper-light);
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   14. Animaciones
   -------------------------------------------------------------------------- */
@keyframes iks-fade {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes iks-pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.35;
  }
}

.hero__intro {
  animation: iks-fade 0.7s var(--ease) both;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   15. Adaptación a pantallas
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  :root {
    --gutter: 32px;
  }

  .hero__grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .unit,
  .beta {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .nav-toggle {
    display: block;
  }

  /* El cajón cuelga del propio header (sticky = bloque contenedor), así que
     encaja exacto sin depender de una altura declarada a mano. */
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--gutter) 24px;
    background: var(--ink);
    border-bottom: 1px solid var(--hairline-dark);
    box-shadow: 0 24px 40px rgba(0, 0, 0, 0.45);
    font-size: 16px;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease),
      visibility 0.25s;
  }

  .nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav__link {
    padding: 16px 0;
    border-bottom: 1px solid var(--hairline-dark);
  }

  .nav__link::after {
    display: none;
  }

  .nav__cta {
    justify-content: center;
    height: 50px;
    margin-top: 20px;
  }

  .section,
  .contact {
    padding-top: 88px;
    padding-bottom: 88px;
  }

  .contact {
    padding-bottom: 0;
  }

  .hero {
    padding-top: 88px;
    padding-bottom: 88px;
  }

  .values,
  .marks,
  .swatches {
    grid-template-columns: 1fr;
  }

  .swatches {
    margin-top: 1px;
    border-top: 1px solid var(--hairline-dark);
  }

  .unit {
    padding: 32px 24px;
  }

  .unit__features--two-col {
    grid-template-columns: 1fr;
  }

  .beta {
    margin-top: 64px;
    padding: 36px 24px 32px;
  }

  .beta__title {
    font-size: 30px;
  }

  .units__head {
    margin-bottom: 44px;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }
}

@media (max-width: 560px) {
  :root {
    --gutter: 20px;
  }

  .hero__stats {
    grid-template-columns: 1fr;
  }

  .channels {
    grid-template-columns: 1fr;
  }

  .channel {
    min-height: 0;
    gap: 28px;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .letters__tile {
    width: 40px;
    height: 40px;
    font-size: 19px;
  }

  .lockup--horizontal {
    flex-direction: column;
    text-align: center;
  }

  .lockup__text {
    text-align: center;
  }

  .wa-fab {
    right: 16px;
    bottom: 16px;
    height: 48px;
    padding: 0 18px 0 14px;
    font-size: 13.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* --------------------------------------------------------------------------
   16. Impresión
   -------------------------------------------------------------------------- */
@media print {
  .header,
  .nav-toggle,
  .wa-fab,
  .beta__form,
  .skip-link {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .section,
  .hero,
  .contact {
    padding: 24px 0;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}