/* ============================================
   COMPONENTS - Header, footer, buttons, cards, etc.
   ============================================ */

/* === Header === */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: background var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
}

.site-header.is-dark {
  background: rgba(15, 17, 21, 0.92);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 clamp(20px, 3vw, 48px);
}

.site-header__brand {
  position: relative;
  display: block;
  flex: 0 0 auto;
  width: clamp(150px, 12vw, 210px);
  aspect-ratio: 4 / 1;
}

.site-header__logo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: left center;
  display: block;
  transition: opacity 180ms ease;
}

.site-header__logo--light {
  opacity: 0;
}

.site-header__logo--dark {
  opacity: 1;
}

.site-header.is-dark .site-header__logo--light {
  opacity: 1;
}

.site-header.is-dark .site-header__logo--dark {
  opacity: 0;
}

/* Nav */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.main-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.main-nav__link {
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  padding: var(--space-xs) 0;
  position: relative;
  transition: color var(--duration-fast) var(--ease-out);
}

.main-nav__link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transition: width var(--duration-fast) var(--ease-out);
}

.main-nav__link:hover,
.main-nav__link.is-active {
  color: var(--color-accent);
}

.main-nav__link:hover::after,
.main-nav__link.is-active::after {
  width: 100%;
}

.site-header.is-dark .main-nav__link {
  color: var(--color-text-inverse);
}

.site-header.is-dark .main-nav__link:hover {
  color: var(--color-accent-cyan);
}

/* Header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Locale selector */
.locale-selector {
  position: relative;
}

.locale-selector__btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast) var(--ease-out);
}

.locale-selector__btn:hover {
  background: var(--color-surface-alt);
}

.site-header.is-dark .locale-selector__btn {
  color: var(--color-text-inverse);
}

.site-header.is-dark .locale-selector__btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.locale-selector__menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-xs);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out),
              visibility var(--duration-fast);
}

.locale-selector__menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.locale-selector__item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  color: var(--color-text);
  font-weight: var(--fw-medium);
  transition: background var(--duration-fast) var(--ease-out);
}

.locale-selector__item:hover {
  background: var(--color-surface-alt);
  color: var(--color-accent);
}

.locale-selector__flag {
  font-size: 1.125rem;
  line-height: 1;
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
}

.menu-toggle__bar {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--duration-fast) var(--ease-out),
              opacity var(--duration-fast) var(--ease-out);
}

.site-header.is-dark .menu-toggle__bar {
  background: var(--color-text-inverse);
}

.menu-toggle.is-open .menu-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-open .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open .menu-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-surface);
  z-index: var(--z-overlay);
  overflow-y: auto;
  padding: var(--space-lg);
  transform: translateX(100%);
  transition: transform var(--duration-normal) var(--ease-out);
}

.mobile-nav.is-open {
  transform: translateX(0);
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.mobile-nav__link {
  display: block;
  padding: var(--space-md) 0;
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-surface-alt);
}

.mobile-nav__link:hover {
  color: var(--color-accent);
}

.mobile-nav__locale {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-surface-alt);
}

.mobile-nav__locale-title {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.mobile-nav__locale-link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) 0;
  font-size: var(--fs-md);
  color: var(--color-text);
  font-weight: var(--fw-medium);
}

.mobile-nav__cta {
  margin-top: var(--space-lg);
}

@media (max-width: 968px) {
  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .mobile-nav {
    display: block;
  }

  .header-actions .locale-selector {
    display: none;
  }
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 12px 28px;
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-full);
  transition: transform var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
  white-space: nowrap;
  text-align: center;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(17, 103, 255, 0.25);
}

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid rgba(0, 0, 0, 0.12);
}

.btn--secondary:hover {
  background: var(--color-surface-alt);
  color: var(--color-text);
  border-color: rgba(0, 0, 0, 0.2);
  transform: translateY(-1px);
}

.btn--ghost {
  color: var(--color-text);
  padding: 12px 20px;
}

.btn--ghost:hover {
  color: var(--color-accent);
}

.btn--light {
  background: #fff;
  color: var(--color-text);
}

.btn--light:hover {
  background: var(--color-surface-alt);
  color: var(--color-text);
  transform: translateY(-1px);
}

.btn--outline-light {
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--color-text-inverse);
}

.btn--outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-inverse);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn--lg {
  padding: 16px 36px;
  font-size: var(--fs-md);
}

.btn--sm {
  padding: 8px 18px;
  font-size: var(--fs-sm);
}

.btn--block {
  width: 100%;
}

.btn--whatsapp {
  background: #25d366;
  color: #fff;
}

.btn--whatsapp:hover {
  background: #1da851;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.25);
}

.btn--whatsapp:focus-visible {
  outline-color: #25d366;
}

.btn--contact {
  background: var(--color-brand-orange);
  color: #fff;
}

.btn--contact:hover {
  background: var(--color-brand-orange-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 163, 0, 0.25);
}

.btn--contact:focus-visible {
  outline: 2px solid var(--color-brand-orange);
  outline-offset: 2px;
}

.btn--contact:active {
  transform: translateY(0) scale(0.98);
}

.brand-name {
  font-weight: inherit;
}

.brand-name__inter {
  color: var(--color-brand-orange);
}

.brand-name__neg {
  color: var(--color-text-light);
}

/* === Cards === */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  flex-shrink: 0;
}

.card__title {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-xs);
}

.card__text {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  line-height: var(--lh-normal);
}

/* === Product showcase — Sticky stacking cards === */
.products-section {
  padding: clamp(24px, 3vw, 48px) 0;
  background: var(--color-bg);
}

.products-section .container {
  max-width: var(--container-wide);
}

.products-section .section-header {
  margin-bottom: clamp(40px, 6vw, 80px);
}

.products-stack {
  position: relative;
  isolation: isolate;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 clamp(20px, 3vw, 48px) clamp(12px, 2vw, 24px);
}

.product-scene {
  position: sticky;
  top: calc(var(--header-height) + 18px);
  min-height: calc(100vh - var(--header-height) - 40px);
  border-radius: clamp(24px, 3vw, 44px);
  border: 1px solid rgba(20, 30, 55, 0.08);
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: clamp(48px, 7vw, 96px);
  opacity: 1;
  isolation: isolate;
  contain: paint;
  transform: translateZ(0);
  box-shadow:
    0 -1px 0 rgba(255, 255, 255, 0.45),
    0 18px 50px rgba(20, 35, 70, 0.12);
}

/* Progressive sticky offsets and z-index */
.product-scene:nth-child(1) {
  top: calc(var(--header-height) + 18px);
  z-index: 1;
}

.product-scene:nth-child(2) {
  top: calc(var(--header-height) + 30px);
  z-index: 2;
}

.product-scene:nth-child(3) {
  top: calc(var(--header-height) + 42px);
  z-index: 3;
}

.product-scene:nth-child(4) {
  top: calc(var(--header-height) + 54px);
  z-index: 4;
}

.product-scene:nth-child(5) {
  top: calc(var(--header-height) + 66px);
  z-index: 5;
}

.product-scene:nth-child(6) {
  top: calc(var(--header-height) + 78px);
  z-index: 6;
}

.product-scene__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: center;
  width: 100%;
  max-width: var(--container-content);
  margin: 0 auto;
}

.product-scene__index {
  position: absolute;
  top: clamp(24px, 3vw, 40px);
  right: clamp(24px, 3vw, 40px);
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  opacity: 0.5;
}

.product-scene__tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.product-scene__title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: var(--fw-extrabold);
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin-bottom: var(--space-sm);
}

.product-scene__desc {
  font-size: var(--fs-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  line-height: var(--lh-relaxed);
  max-width: 480px;
}

.product-scene__features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}

.product-scene__feature {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.75);
  border-radius: var(--radius-full);
  font-weight: var(--fw-medium);
}

.product-scene__visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
}

/* Scene backgrounds per product — fully opaque */
.product-scene--accessneg {
  background-color: #e8f0ff;
  background-image: linear-gradient(135deg, #e8f0ff, #f0f5ff);
}

.product-scene--distrineg {
  background-color: #e6f7f2;
  background-image: linear-gradient(135deg, #e6f7f2, #f0faf7);
}

.product-scene--tvneg {
  background-color: #e2f6fb;
  background-image: linear-gradient(135deg, #e2f6fb, #ecf9fc);
}

.product-scene--fidelify {
  background-color: #f0eafd;
  background-image: linear-gradient(135deg, #f0eafd, #f6f2fe);
}

.product-scene--iot {
  background-color: #e1ecf7;
  background-image: linear-gradient(135deg, #e1ecf7, #ebf2fa);
}

.product-scene--sat {
  background-color: #eef4fa;
  background-image: linear-gradient(135deg, #eef4fa, #f4f8fc);
}

/* Variant: reverse layout */
.product-scene--reverse .product-scene__inner {
  grid-template-columns: 1fr 1fr;
}

.product-scene--reverse .product-scene__visual {
  order: -1;
}

/* Variant: centered (text dominant, no visual side-by-side) */
.product-scene--centered .product-scene__inner {
  grid-template-columns: 1fr;
  max-width: 760px;
  text-align: center;
}

.product-scene--centered .product-scene__visual {
  display: none;
}

.product-scene--centered .product-scene__desc {
  margin-left: auto;
  margin-right: auto;
}

.product-scene--centered .product-scene__features {
  justify-content: center;
}

@media (max-width: 968px) {
  .product-scene {
    position: relative;
    top: auto;
    min-height: auto;
    margin-bottom: clamp(20px, 3vw, 32px);
    padding: clamp(32px, 5vw, 48px);
  }

  .product-scene__inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .product-scene--reverse .product-scene__visual {
    order: 0;
  }
}

/* === Stats bar === */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
}

.stat {
  text-align: center;
}

.stat__number {
  font-size: clamp(2rem, 4vw, var(--fs-4xl));
  font-weight: var(--fw-extrabold);
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.stat__label {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  font-weight: var(--fw-medium);
}

.section--dark .stat__number {
  color: var(--color-accent-cyan);
}

.section--dark .stat__label {
  color: var(--color-text-inverse-muted);
}

@media (max-width: 768px) {
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }
}

/* === Process steps — Two-column with sticky intro === */
.process-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: start;
}

.process-intro {
  position: sticky;
  top: calc(var(--header-height) + 48px);
  align-self: start;
}

.process-intro__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
}

.process-intro__eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

.process-intro__title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: var(--fw-extrabold);
  line-height: 1;
  letter-spacing: -0.035em;
  margin-bottom: var(--space-md);
}

.process-intro__text {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-xl);
  max-width: 420px;
}

.process-intro__progress {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.process-intro__progress-bar {
  width: 3px;
  height: 120px;
  background: rgba(0, 0, 0, 0.08);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: var(--space-sm);
}

.process-intro__progress-fill {
  width: 100%;
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent-cyan));
  height: 0%;
  transition: height 0.3s var(--ease-out);
  border-radius: 2px;
}

.process-intro__progress-label {
  font-size: var(--fs-xs);
  color: var(--color-text-light);
  font-family: var(--font-mono);
  font-weight: var(--fw-semibold);
}

.process-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.process-step {
  position: relative;
  padding: clamp(28px, 4vw, 48px) 0;
  padding-left: clamp(48px, 5vw, 72px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: padding-left var(--duration-normal) var(--ease-out);
}

.process-step:first-child {
  padding-top: 0;
}

.process-step:last-child {
  border-bottom: none;
}

.process-step::before {
  content: "";
  position: absolute;
  left: 23px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(0, 0, 0, 0.06);
}

.process-step:first-child::before {
  top: 12px;
}

.process-step:last-child::before {
  bottom: calc(100% - 56px);
}

.process-step__number {
  position: absolute;
  left: 0;
  top: clamp(28px, 4vw, 48px);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-md);
  font-weight: var(--fw-extrabold);
  color: var(--color-text-light);
  z-index: 1;
  transition: background var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              color var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

.process-step:first-child .process-step__number {
  top: 0;
}

.process-step.is-active .process-step__number {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  transform: scale(1.08);
}

.process-step__title {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: var(--fw-bold);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xs);
  transition: color var(--duration-normal) var(--ease-out);
}

.process-step.is-active .process-step__title {
  color: var(--color-accent);
}

.process-step__text {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
  max-width: 520px;
  opacity: 0.7;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.process-step.is-active .process-step__text {
  opacity: 1;
}

@media (max-width: 768px) {
  .process-layout {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .process-intro {
    position: static;
  }

  .process-intro__progress-bar {
    display: none;
  }

  .process-step {
    padding-left: 56px;
  }

  .process-step::before {
    left: 23px;
  }

  .process-step__number {
    width: 48px;
    height: 48px;
    top: clamp(20px, 3vw, 32px);
  }

  .process-step:first-child .process-step__number {
    top: 0;
  }
}

/* === Accordion / FAQ === */
.accordion {
  max-width: var(--content-narrow);
  margin: 0 auto;
}

.accordion__item {
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.section--dark .accordion__item {
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.accordion__btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  text-align: left;
  transition: color var(--duration-fast) var(--ease-out);
}

.section--dark .accordion__btn {
  color: var(--color-text-inverse);
}

.accordion__btn:hover {
  color: var(--color-accent);
}

.accordion__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  position: relative;
}

.accordion__icon::before,
.accordion__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--duration-fast) var(--ease-out);
}

.accordion__icon::before {
  width: 14px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.accordion__icon::after {
  width: 2px;
  height: 14px;
  transform: translate(-50%, -50%);
}

.accordion__btn.is-open .accordion__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.accordion__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-out);
}

.accordion__content-inner {
  padding: 0 0 var(--space-md);
  color: var(--color-text-muted);
  font-size: var(--fs-base);
  line-height: var(--lh-relaxed);
}

.section--dark .accordion__content-inner {
  color: var(--color-text-inverse-muted);
}

/* === Footer === */
.site-footer {
  background: var(--gradient-dark);
  color: var(--color-text-inverse-muted);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.site-footer__brand img {
  height: 40px;
  width: auto;
  margin-bottom: var(--space-md);
}

.site-footer__about {
  font-size: var(--fs-sm);
  line-height: var(--lh-normal);
  max-width: 280px;
}

.site-footer__col-title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text-inverse);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.site-footer__link {
  font-size: var(--fs-sm);
  color: var(--color-text-inverse-muted);
}

.site-footer__link:hover {
  color: var(--color-accent-cyan);
}

.site-footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  font-size: var(--fs-sm);
  margin-bottom: var(--space-xs);
  color: var(--color-text-inverse-muted);
}

.site-footer__contact-item a {
  color: var(--color-text-inverse-muted);
}

.site-footer__contact-item a:hover {
  color: var(--color-accent-cyan);
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: var(--fs-sm);
}

.site-footer__locale {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.site-footer__locale-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  color: var(--color-text-inverse-muted);
  font-size: var(--fs-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--duration-fast) var(--ease-out);
}

.site-footer__locale-link:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-inverse);
}

.site-footer__locale-link.is-active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text-inverse);
}

@media (max-width: 768px) {
  .site-footer__top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .site-footer__top {
    grid-template-columns: 1fr;
  }
}

/* === Badge === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.badge--cyan {
  background: var(--color-accent-cyan-soft);
  color: var(--color-accent-cyan);
}

/* === Form === */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.form-label .required {
  color: #e53e3e;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--fs-base);
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.form-input.is-error,
.form-textarea.is-error,
.form-select.is-error {
  border-color: #e53e3e;
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-error {
  display: none;
  font-size: var(--fs-sm);
  color: #e53e3e;
  margin-top: var(--space-xs);
}

.form-error.is-visible {
  display: block;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.form-checkbox input {
  margin-top: 4px;
  flex-shrink: 0;
}

.form-checkbox label {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: var(--lh-normal);
}

.form-status {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  font-size: var(--fs-sm);
  display: none;
}

.form-status.is-visible {
  display: block;
}

.form-status--success {
  background: rgba(0, 168, 120, 0.1);
  color: #00a878;
  border: 1px solid rgba(0, 168, 120, 0.2);
}

.form-status--error {
  background: rgba(229, 62, 62, 0.1);
  color: #e53e3e;
  border: 1px solid rgba(229, 62, 62, 0.2);
}

/* === Contact info === */
.contact-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.contact-card {
  padding: var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.contact-card__country {
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-xs);
}

.contact-card__role {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.contact-card__items {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.contact-card__item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--fs-sm);
  color: var(--color-text);
}

.contact-card__item a {
  color: var(--color-text);
}

.contact-card__item a:hover {
  color: var(--color-accent);
}

@media (max-width: 640px) {
  .contact-info {
    grid-template-columns: 1fr;
  }
}

/* === CTA section === */
.cta-section {
  text-align: center;
  padding: var(--space-3xl) 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: var(--glow-blue);
  pointer-events: none;
}

.cta-section::after {
  content: "";
  position: absolute;
  bottom: -15%;
  right: -5%;
  width: 350px;
  height: 350px;
  background: var(--glow-cyan);
  pointer-events: none;
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section__title {
  font-size: clamp(1.75rem, 4vw, var(--fs-3xl));
  margin-bottom: var(--space-md);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section__text {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}

/* === International selector === */
.locale-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--gradient-hero);
}

.locale-page__main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl) var(--space-lg);
}

.locale-card {
  max-width: 560px;
  width: 100%;
  text-align: center;
}

.locale-card__logo {
  margin: 0 auto var(--space-xl);
}

.locale-card__logo img {
  height: 64px;
  width: auto;
  margin: 0 auto;
}

.locale-card__title {
  font-size: clamp(1.5rem, 3vw, var(--fs-2xl));
  margin-bottom: var(--space-sm);
}

.locale-card__subtitle {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
}

.locale-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

@media (max-width: 480px) {
  .locale-options {
    grid-template-columns: 1fr;
  }
}

.locale-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-lg);
  background: var(--color-surface);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal) var(--ease-out);
  color: var(--color-text);
}

.locale-option:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  color: var(--color-text);
}

.locale-option__flag {
  font-size: 2.5rem;
  line-height: 1;
}

.locale-option__country {
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
}

.locale-option__lang {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

.locale-option__suggestion {
  font-size: var(--fs-xs);
  color: var(--color-accent);
  font-weight: var(--fw-semibold);
  margin-top: var(--space-xs);
}

/* === Page hero === */
.page-hero {
  padding: var(--space-2xl) 0 var(--space-xl);
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  top: -10%;
  right: -5%;
  width: 400px;
  height: 400px;
  background: var(--glow-blue);
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero__eyebrow {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
}

.page-hero__title {
  font-size: clamp(2rem, 4.5vw, var(--fs-4xl));
  margin-bottom: var(--space-sm);
}

.page-hero__subtitle {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  max-width: 640px;
}

/* === 404 === */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl);
}

.error-page__code {
  font-size: clamp(4rem, 12vw, 8rem);
  font-weight: var(--fw-extrabold);
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.error-page__title {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-sm);
}

.error-page__text {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

/* === Product visual placeholder === */
.product-visual {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-visual svg {
  width: 100%;
  height: 100%;
}

/* === Tech line decoration === */
.tech-line {
  position: absolute;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  height: 1px;
  opacity: 0.15;
}

/* === Capability chapters — Alternating claro → color → oscuro === */
.capability-chapters {
  display: flex;
  flex-direction: column;
}

.capability-card {
  padding: clamp(64px, 8vw, 120px) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  position: relative;
  overflow: hidden;
}

.capability-card__inner {
  max-width: var(--container-content);
  margin: 0 auto;
  padding: 0 clamp(20px, 3vw, 48px);
}

.capability-card--with-visual .capability-card__inner {
  display: grid;
  grid-template-columns: 52fr 48fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}

.capability-card__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.capability-card__visual img {
  width: 100%;
  height: auto;
  max-width: 560px;
  object-fit: contain;
  display: block;
}

@media (max-width: 768px) {
  .capability-card--with-visual .capability-card__inner {
    grid-template-columns: 1fr;
  }
}

.capability-card:last-child {
  border-bottom: none;
}

/* Chapter 1: claro */
.capability-card:nth-child(1) {
  background: var(--color-surface);
  background-image: var(--pattern-grid);
}

/* Chapter 2: color intenso */
.capability-card:nth-child(2) {
  background: linear-gradient(135deg, var(--color-accent), #0d4ed8);
  color: #fff;
}

.capability-card:nth-child(2) .capability-card__number,
.capability-card:nth-child(2) .capability-card__title {
  color: #fff;
}

.capability-card:nth-child(2) .capability-card__text {
  color: rgba(255, 255, 255, 0.85);
}

.capability-card:nth-child(2) .capability-card__list-item {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
}

.capability-card:nth-child(2) .capability-card__list-item::before {
  color: var(--color-accent-cyan);
}

/* Chapter 3: oscuro */
.capability-card:nth-child(3) {
  background: var(--color-graphite);
  color: var(--color-text-inverse);
}

.capability-card:nth-child(3) .capability-card__number {
  color: var(--color-accent-cyan);
}

.capability-card:nth-child(3) .capability-card__title {
  color: var(--color-text-inverse);
}

.capability-card:nth-child(3) .capability-card__text {
  color: var(--color-text-inverse-muted);
}

.capability-card:nth-child(3) .capability-card__list-item {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-inverse-muted);
}

.capability-card:nth-child(3) .capability-card__list-item::before {
  color: var(--color-accent-cyan);
}

.capability-card__number {
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.capability-card__title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: var(--fw-extrabold);
  letter-spacing: -0.035em;
  line-height: 1;
  margin-bottom: var(--space-md);
  max-width: 720px;
}

.capability-card__text {
  font-size: var(--fs-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  line-height: var(--lh-relaxed);
  max-width: 680px;
}

.capability-card__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
}

.capability-card__list-item {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--fs-base);
  color: var(--color-text-muted);
  padding: 8px 18px;
  background: var(--color-surface);
  border-radius: var(--radius-full);
  font-weight: var(--fw-medium);
}

.capability-card__list-item::before {
  content: "→";
  color: var(--color-accent);
  font-weight: var(--fw-bold);
  flex-shrink: 0;
}