/* ==========================================================================
   Bliim — Landing
   Paleta: negro / blanco · Fuente: Montserrat
   ========================================================================== */

:root {
  --color-bg: #0a0a0a;
  --color-bg-alt: #111111;
  --color-surface: #1a1a1a;
  --color-text: #f5f5f5;
  --color-text-muted: #a3a3a3;
  --color-border: #2a2a2a;
  --color-accent: #ffffff;
  --color-focus: #ffffff;
  --font-sans: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --radius: 6px;
  --transition: 0.2s ease;
  --container: min(90vw, 1100px);
}

/* Reset & base
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

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

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

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

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Layout
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

/* Header
   ========================================================================== */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 112px;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header__logo {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.02em;
}

.header__logo-img {
  display: block;
  height: 100px;
  width: auto;
  object-fit: contain;
}

.nav__list {
  display: flex;
  gap: var(--space-xl);
}

.nav__link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

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

.header__menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
}

.header__menu-icon,
.header__menu-btn::before,
.header__menu-btn::after {
  display: block;
  width: 22px;
  height: 2px;
  background-color: currentColor;
  transition: transform var(--transition);
}

.header__menu-btn::before {
  content: '';
}

.header__menu-btn::after {
  content: '';
}

.header__menu-btn[aria-expanded="true"] .header__menu-icon {
  opacity: 0;
}

.header__menu-btn[aria-expanded="true"]::before {
  transform: translateY(7px) rotate(45deg);
}

.header__menu-btn[aria-expanded="true"]::after {
  transform: translateY(-7px) rotate(-45deg);
}

.nav--mobile {
  display: none;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg-alt);
}

.nav--mobile.is-open {
  display: block;
}

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

/* Language selector
   ========================================================================== */

.lang-selector {
  position: relative;
}

.lang-selector__btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  background-color: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--transition), background-color var(--transition);
}

.lang-selector__btn:hover {
  border-color: var(--color-text-muted);
  background-color: var(--color-surface);
}

.lang-selector__current {
  min-width: 24px;
  text-align: center;
}

.lang-selector__icon {
  font-size: 0.625rem;
  color: var(--color-text-muted);
  transition: transform var(--transition);
}

.lang-selector__btn[aria-expanded="true"] .lang-selector__icon {
  transform: rotate(180deg);
}

.lang-selector__dropdown {
  position: absolute;
  top: calc(100% + var(--space-xs));
  right: 0;
  min-width: 80px;
  padding: var(--space-xs);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
}

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

.lang-selector__option {
  display: block;
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  text-align: center;
  color: var(--color-text);
  background-color: transparent;
  border: none;
  border-radius: calc(var(--radius) - 2px);
  cursor: pointer;
  transition: background-color var(--transition);
}

.lang-selector__option:hover {
  background-color: var(--color-bg-alt);
}

/* Hero
   ========================================================================== */

.hero {
  padding: var(--space-4xl) 0;
  background-color: var(--color-bg);
}

.hero__inner {
  max-width: 640px;
}

.hero__title {
  margin: 0 0 var(--space-lg);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.hero__lead {
  margin: 0 0 var(--space-xl);
  font-size: 1.125rem;
  color: var(--color-text-muted);
}

/* Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

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

.btn--primary:hover {
  background-color: var(--color-text-muted);
  color: var(--color-bg);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-text);
  color: var(--color-accent);
}

/* Sections
   ========================================================================== */

.section {
  padding: var(--space-4xl) 0;
}

.section--services {
  background-color: var(--color-bg-alt);
}

.section--tech {
  background-color: var(--color-bg);
}

.section--process {
  background-color: var(--color-bg-alt);
}

.section--about {
  background-color: var(--color-bg);
}

.section--stats {
  background-color: var(--color-bg-alt);
  padding: var(--space-3xl) 0;
}

.section--projects {
  background-color: var(--color-bg);
}

.section--values {
  background-color: var(--color-bg-alt);
}

.section--cta {
  background-color: var(--color-bg-alt);
  text-align: center;
}

.section__title {
  margin: 0 0 var(--space-md);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section__intro {
  margin: 0 0 var(--space-2xl);
  max-width: 560px;
  color: var(--color-text-muted);
}

.section--cta .section__intro {
  margin-inline: auto;
}

/* Cards (services)
   ========================================================================== */

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.card {
  padding: var(--space-xl);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.card:hover {
  border-color: var(--color-text-muted);
}

.card__icon {
  margin-bottom: var(--space-md);
  font-size: 1.5rem;
  color: var(--color-text-muted);
}

.card__title {
  margin: 0 0 var(--space-sm);
  font-size: 1.125rem;
  font-weight: 600;
}

.card__text {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* Technologies
   ========================================================================== */

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-xl);
}

.tech-item {
  padding: var(--space-lg);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.tech-item:hover {
  border-color: var(--color-text-muted);
}

.tech-item__label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.tech-item__desc {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Process
   ========================================================================== */

.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-xl);
}

.process-step {
  padding: var(--space-xl);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  position: relative;
  transition: border-color var(--transition);
}

.process-step:hover {
  border-color: var(--color-text-muted);
}

.process-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: var(--space-md);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-bg);
  background-color: var(--color-text);
  border-radius: 50%;
}

.process-step__title {
  margin: 0 0 var(--space-sm);
  font-size: 1.125rem;
  font-weight: 600;
}

.process-step__text {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* About (with image)
   ========================================================================== */

.about-content {
  max-width: 600px;
}

.about__text {
  margin: 0;
  font-size: 1.0625rem;
  color: var(--color-text-muted);
}

.about-image {
  margin-top: var(--space-2xl);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* Stats
   ========================================================================== */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

.stats-grid .stat {
  padding: var(--space-lg);
}

.stats-grid .stat__value {
  display: block;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.stats-grid .stat__label {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Projects
   ========================================================================== */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.project-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}

.project-card:hover {
  border-color: var(--color-text-muted);
}

.project-card__image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--color-bg-alt);
}

.project-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-card__body {
  padding: var(--space-xl);
}

.project-card__title {
  margin: 0 0 var(--space-sm);
  font-size: 1.125rem;
  font-weight: 600;
}

.project-card__text {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* Values
   ========================================================================== */

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-xl);
}

.value-item {
  padding: var(--space-lg);
}

.value-item__icon {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
  color: var(--color-text-muted);
}

.value-item__title {
  margin: 0 0 var(--space-sm);
  font-size: 1rem;
  font-weight: 600;
}

.value-item__text {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Footer
   ========================================================================== */

.footer {
  padding: var(--space-3xl) 0 var(--space-xl);
  background-color: #000000;
  border-top: 1px solid var(--color-border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer__brand {
  max-width: 280px;
}

.footer__logo-img {
  display: block;
  margin-bottom: var(--space-md);
  height: 110px;
  width: auto;
  object-fit: contain;
}

.footer__tagline {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.footer__heading {
  margin: 0 0 var(--space-md);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__link {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.footer__link:hover {
  color: var(--color-text);
}

.footer__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.footer__bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.footer__copy {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* Legal pages (Terms, Privacy)
   ========================================================================== */

.legal-page {
  padding: var(--space-3xl) 0 var(--space-4xl);
}

.legal-content {
  max-width: 720px;
}

/* Ocultar el bloque que no corresponde al idioma seleccionado */
.legal-content[hidden] {
  display: none !important;
}

.legal__title {
  margin: 0 0 var(--space-sm);
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.legal__updated {
  margin: 0 0 var(--space-2xl);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.legal-content h2 {
  margin: var(--space-2xl) 0 var(--space-md);
  font-size: 1.125rem;
  font-weight: 600;
}

.legal-content p {
  margin: 0 0 var(--space-lg);
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.legal-list {
  margin: 0 0 var(--space-lg);
  padding-left: 1.25rem;
  list-style: disc;
}

.legal-list li {
  margin-bottom: var(--space-sm);
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.legal-list li:last-child {
  margin-bottom: 0;
}

.nav__link--active {
  color: var(--color-text);
}

/* Responsive
   ========================================================================== */

@media (max-width: 768px) {
  .nav:not(.nav--mobile) .nav__list {
    display: none;
  }

  .header__menu-btn {
    display: flex;
  }

  .lang-selector__dropdown {
    right: auto;
    left: 0;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer__brand {
    max-width: none;
  }

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

@media (max-width: 480px) {
  .hero {
    padding: var(--space-3xl) 0;
  }

  .section {
    padding: var(--space-3xl) 0;
  }
}