/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(26, 31, 46, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-base);
}

.site-header.scrolled {
  background: rgba(26, 31, 46, 0.95);
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

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

.header-logo img {
  height: 40px;
  width: auto;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

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

.nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--color-primary-light);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  width: 100%;
}

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

/* Language switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
}

.lang-btn {
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

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

.lang-btn.active {
  background: var(--color-primary);
  color: var(--color-text);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-primary-light);
}

.btn-secondary:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: #25D366;
  color: #fff;
  border-color: #25D366;
}

.btn-whatsapp:hover {
  background: #1da851;
  border-color: #1da851;
  transform: translateY(-2px);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-gradient {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 20%, rgba(73, 147, 96, 0.15) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 80%, rgba(41, 86, 81, 0.2) 0%, transparent 50%),
              linear-gradient(180deg, var(--color-bg) 0%, var(--color-dark) 100%);
}

.hero-parallax {
  position: absolute;
  inset: 0;
  will-change: transform;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-text {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--color-primary-light);
  margin-bottom: var(--space-lg);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  animation: pulseGlow 2s ease-in-out infinite;
}

.hero-title {
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--space-2xl);
  line-height: 1.7;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-logo-wrapper {
  position: relative;
  width: 280px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-logo-glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle, var(--color-glow) 0%, transparent 70%);
  animation: pulseGlow 3s ease-in-out infinite;
}

.hero-logo-wrapper img {
  position: relative;
  width: 200px;
  height: auto;
}

/* ============================================
   ABOUT
   ============================================ */
.about {
  background: var(--color-bg-alt);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.about-image {
  position: relative;
  display: flex;
  justify-content: center;
}

.about-image img {
  max-width: 300px;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

.about-text h2 {
  margin-bottom: var(--space-lg);
}

.about-text p {
  margin-bottom: var(--space-md);
  font-size: 1.0625rem;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

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

.about-feature-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.75rem;
}

.about-feature span {
  font-size: 0.9375rem;
  color: var(--color-text);
}

/* ============================================
   CARDS GRID (Integrations, Services, Clients)
   ============================================ */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.card {
  padding: var(--space-xl);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.card-icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  transition: transform var(--transition-base);
}

.card:hover .card-icon {
  transform: scale(1.1);
}

.card-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.card-description {
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* Integration cards specific */
.integration-card .card-icon {
  background: rgba(255, 255, 255, 0.05);
}

/* Service cards specific */
.service-card .card-icon {
  font-size: 2rem;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
}

/* Client / testimonial cards */
.client-card {
  text-align: center;
}

.client-logo {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-lg);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm);
}

.client-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.client-name {
  font-family: var(--font-primary);
  font-size: 1.125rem;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.client-testimonial {
  font-style: italic;
  font-size: 0.9375rem;
  line-height: 1.7;
  position: relative;
  padding-top: var(--space-md);
  margin-inline: auto;
  max-width: 65ch;
  text-align: center;
}

.client-testimonial p {
  margin-inline: auto;
  max-width: none;
}

.client-testimonial::before {
  content: '"';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  font-size: 2rem;
  color: var(--color-primary);
  line-height: 1;
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
  background: var(--color-bg-alt);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
}

.contact-info h3 {
  margin-bottom: var(--space-lg);
}

.contact-info p {
  margin-bottom: var(--space-xl);
}

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

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

.contact-method-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: 1.25rem;
}

.contact-method-text {
  display: flex;
  flex-direction: column;
}

.contact-method-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.contact-method-value {
  font-weight: 500;
  color: var(--color-text);
}

.contact-socials {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.social-link {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.social-link:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-3px);
}

.social-link img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

/* Contact form */
.contact-form {
  padding: var(--space-2xl);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(73, 147, 96, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(151, 186, 164, 0.5);
}

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

.form-submit {
  width: 100%;
}

.form-success {
  padding: var(--space-md);
  background: rgba(73, 147, 96, 0.2);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  color: var(--color-primary-light);
  text-align: center;
  margin-top: var(--space-md);
  display: none;
}

.form-success.visible {
  display: block;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--color-dark);
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-3xl);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
}

.footer-brand img {
  height: auto;
  width: auto;
  max-height: 48px;
  max-width: 200px;
  margin-bottom: var(--space-md);
  display: block;
}

.footer-brand p {
  font-size: 0.9375rem;
  max-width: 280px;
}

.footer-nav h4,
.footer-social h4 {
  font-family: var(--font-primary);
  font-size: 1rem;
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

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

.footer-links a {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-primary-light);
}

.footer-social-links {
  display: flex;
  gap: var(--space-sm);
}

.footer-bottom {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-inline: auto;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 992px) {
  .hero-content,
  .about-content,
  .contact-wrapper {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text {
    max-width: none;
  }

  .hero-logo-wrapper {
    width: 200px;
    height: 200px;
  }

  .hero-logo-wrapper img {
    width: 140px;
  }

  .btn-group {
    justify-content: center;
  }

  .about-image {
    order: -1;
  }

  .about-features {
    grid-template-columns: 1fr;
    text-align: left;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
    text-align: center;
  }

  .footer-brand p {
    margin-inline: auto;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .header-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--space-xl);
    background: rgb(26, 31, 46);
    backdrop-filter: blur(16px);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    gap: var(--space-xl);
  }

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

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: var(--space-md);
  }

  .nav-links a {
    font-size: 1.125rem;
    padding-block: var(--space-sm);
  }

  .header-actions {
    flex-direction: column;
    width: 100%;
  }

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

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

  .footer-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-nav,
  .footer-social {
    text-align: center;
  }

  .footer-links {
    align-items: center;
  }

  .footer-social-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-badge {
    font-size: 0.75rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .btn {
    width: 100%;
  }

  .contact-form {
    padding: var(--space-lg);
  }
}