@import url('./reset.css');
@import url('./variables.css');

/* ========================================
   UTILITIES
   ======================================== */

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

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

.sr-only--focusable:focus {
  position: fixed;
  top: var(--space-xs);
  left: var(--space-xs);
  width: auto;
  height: auto;
  padding: var(--space-xs) var(--space-sm);
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
  background: var(--color-accent-cyan);
  color: var(--color-bg-body);
  font-weight: 700;
  border-radius: var(--border-radius-sm);
  z-index: 10000;
}

.no-scroll {
  overflow: hidden;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   COMPONENTS
   ======================================== */

/* Buttons */
.btn-primary {
  display: inline-block;
  padding: 0.875rem 2rem;
  background-color: var(--color-accent-cyan);
  color: var(--color-bg-body);
  font-weight: 700;
  font-size: var(--font-size-base);
  border-radius: var(--border-radius-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  text-align: center;
}

.btn-primary:hover {
  transform: scale(1.03);
  box-shadow: 0 4px 24px rgba(0, 229, 255, 0.35);
}

.btn-primary--large {
  padding: 1rem 2.5rem;
  font-size: var(--font-size-lg);
}

.btn-secondary {
  display: inline-block;
  padding: 0.875rem 2rem;
  background: transparent;
  color: var(--color-accent-cyan);
  font-weight: 600;
  font-size: var(--font-size-base);
  border: 2px solid var(--color-accent-cyan);
  border-radius: var(--border-radius-sm);
  transition: background var(--transition-base), transform var(--transition-base);
  text-align: center;
}

.btn-secondary:hover {
  background: rgba(0, 229, 255, 0.1);
  transform: scale(1.03);
}

/* Badge */
.badge {
  display: inline-block;
  padding: 0.375rem 1rem;
  border-radius: 999px;
  background: rgba(93, 18, 210, 0.25);
  border: 1px solid var(--color-primary);
  color: var(--color-accent-cyan);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Cards */
.card {
  background: var(--color-bg-card);
  border-radius: var(--border-radius-md);
  padding: var(--space-lg);
  border: 1px solid rgba(93, 18, 210, 0.2);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(93, 18, 210, 0.2);
}

.card__icon {
  margin-bottom: var(--space-sm);
}

.card h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.card p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Section Headings */
.section {
  padding-block: var(--space-section);
}

.section-heading {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-heading h2 {
  font-size: clamp(1.5rem, 4vw, var(--font-size-3xl));
  font-weight: 800;
  line-height: 1.2;
}

.section-intro {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: var(--space-xl);
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
  line-height: 1.7;
}

/* ========================================
   HEADER / NAV
   ======================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding-block: var(--space-sm);
  transition: background var(--transition-base), backdrop-filter var(--transition-base);
}

.site-header--scrolled {
  background: rgba(13, 9, 20, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo img {
  width: 120px;
  height: auto;
}

.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  padding: 8px;
  z-index: 1001;
}

.nav__hamburger,
.nav__hamburger::before,
.nav__hamburger::after {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.nav__hamburger {
  position: relative;
}

.nav__hamburger::before,
.nav__hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.nav__hamburger::before {
  top: -7px;
}

.nav__hamburger::after {
  top: 7px;
}

/* Hamburger open state */
.nav__toggle[aria-expanded="true"] .nav__hamburger {
  background: transparent;
}

.nav__toggle[aria-expanded="true"] .nav__hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

.nav__menu {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100vh;
  height: 100dvh;
  background: var(--color-bg-card);
  padding: 5rem var(--space-lg) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  z-index: 1000;
  border-left: 1px solid rgba(93, 18, 210, 0.3);
}

.nav__menu--open {
  transform: translateX(0);
}

.nav__link {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--border-radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav__link:hover {
  color: var(--color-text-primary);
  background: rgba(93, 18, 210, 0.15);
}

.nav__link--cta {
  background: var(--color-accent-cyan);
  color: var(--color-bg-body);
  font-weight: 700;
  text-align: center;
  margin-top: var(--space-sm);
}

.nav__link--cta:hover {
  background: var(--color-accent-cyan);
  color: var(--color-bg-body);
  box-shadow: 0 4px 16px rgba(0, 229, 255, 0.3);
}

/* ========================================
   HERO
   ======================================== */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 50% 50%, rgba(13, 9, 20, 0.6) 0%, rgba(13, 9, 20, 0.95) 70%);
}

.hero__content {
  position: relative;
  z-index: 1;
  padding-top: 6rem;
  max-width: 800px;
}

.hero__title {
  font-size: var(--font-size-hero);
  font-weight: 800;
  line-height: 1.15;
  margin-top: var(--space-md);
  margin-bottom: var(--space-md);
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  max-width: 640px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ========================================
   SECTION 2: EL PROBLEMA
   ======================================== */

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

/* ========================================
   SECTION 3: PROPUESTA DE VALOR
   ======================================== */

.propuesta__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.propuesta__text h2 {
  font-size: clamp(1.5rem, 4vw, var(--font-size-3xl));
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.propuesta__text > p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.propuesta__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.propuesta__list li {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.propuesta__bullet {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent-magenta);
  margin-top: 0.5rem;
}

.propuesta__list li div {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.propuesta__list li strong {
  color: var(--color-text-primary);
}

/* Flow Diagram */
.propuesta__visual {
  display: flex;
  justify-content: center;
}

.flow-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.flow-diagram__step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-lg);
  background: var(--color-bg-card);
  border: 1px solid rgba(93, 18, 210, 0.3);
  border-radius: var(--border-radius-md);
  min-width: 160px;
  text-align: center;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.flow-diagram__step:hover {
  border-color: var(--color-accent-cyan);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.15);
}

.flow-diagram__number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-magenta));
  color: var(--color-text-primary);
  font-weight: 800;
  font-size: var(--font-size-xl);
  display: flex;
  align-items: center;
  justify-content: center;
}

.flow-diagram__step span {
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.flow-diagram__connector {
  width: 2px;
  height: 32px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-accent-cyan));
  opacity: 0.5;
}

/* ========================================
   SECTION 4: SERVICIOS
   ======================================== */

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

.card--service {
  padding: var(--space-xl);
}

.card--service:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 32px rgba(93, 18, 210, 0.3);
}

.card__icon-wrapper {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(93, 18, 210, 0.1);
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--space-md);
  transition: background var(--transition-base);
}

.card--service:hover .card__icon-wrapper {
  background: rgba(93, 18, 210, 0.2);
}

/* ========================================
   SECTION 5: BENEFICIOS
   ======================================== */

.beneficios__list {
  max-width: 720px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.beneficios__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  transition-delay: calc(var(--delay, 0) * 100ms);
}

.beneficios__check {
  flex-shrink: 0;
  color: var(--color-accent-cyan);
  margin-top: 2px;
}

.beneficios__item div {
  color: var(--color-text-secondary);
  line-height: 1.7;
  font-size: var(--font-size-lg);
}

.beneficios__item strong {
  color: var(--color-text-primary);
}

/* ========================================
   SECTION 6: CTA FINAL
   ======================================== */

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

.cta-final__content {
  max-width: 720px;
  margin-inline: auto;
}

.cta-final h2 {
  font-size: clamp(1.5rem, 4vw, var(--font-size-3xl));
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.cta-final p {
  font-size: var(--font-size-lg);
  line-height: 1.7;
  opacity: 0.9;
  margin-bottom: var(--space-xl);
}

.cta-final .btn-primary {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
  padding-block: var(--space-2xl);
  border-top: 1px solid rgba(93, 18, 210, 0.3);
}

.footer__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  text-align: center;
}

.footer__brand img {
  width: 100px;
  height: auto;
}

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

.footer__links a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

.footer__legal {
  display: flex;
  gap: var(--space-md);
}

.footer__legal a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer__legal a:hover {
  color: var(--color-text-primary);
}

.footer__copy {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

/* ========================================
   REDUCED MOTION
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

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

/* ========================================
   RESPONSIVE: TABLET (768px+)
   ======================================== */

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-lg);
  }

  /* Nav - desktop layout */
  .nav__toggle {
    display: none;
  }

  .nav__menu {
    position: static;
    width: auto;
    height: auto;
    background: transparent;
    padding: 0;
    flex-direction: row;
    align-items: center;
    gap: var(--space-xs);
    transform: none;
    border: none;
  }

  .nav__link {
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--font-size-sm);
  }

  .nav__link--cta {
    margin-top: 0;
    margin-left: var(--space-xs);
  }

  /* Problema grid */
  .problema__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Propuesta layout */
  .propuesta__layout {
    grid-template-columns: 1fr 1fr;
  }

  .flow-diagram {
    flex-direction: column;
  }

  /* Servicios grid */
  .servicios__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Footer */
  .footer__content {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }

  .footer__copy {
    width: 100%;
    text-align: center;
  }
}

/* ========================================
   RESPONSIVE: DESKTOP (1024px+)
   ======================================== */

@media (min-width: 1024px) {
  .hero__content {
    padding-top: 0;
  }

  .flow-diagram {
    flex-direction: row;
  }

  .flow-diagram__connector {
    width: 48px;
    height: 2px;
    background: linear-gradient(to right, var(--color-primary), var(--color-accent-cyan));
  }
}