/* Header mobile styles */
.header-mobile {
  display: none;
  background: var(--header-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
}

.header-content-mobile {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0;
}

.hamburger-mobile {
  background: none;
  border: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  cursor: pointer;
  z-index: 1100;
  padding: 0;
  display: flex;
  border-radius: var(--border-radius-sm);
  transition: background var(--transition-fast);
}

.hamburger-mobile:hover {
  background: rgba(255, 255, 255, 0.08);
}

.hamburger-mobile span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 3px 0;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hamburger-mobile[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.hamburger-mobile[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.hamburger-mobile[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.nav-mobile {
  display: none;
  flex-direction: column;
  align-items: flex-start;
  background: var(--primary-color);
  padding: 0.75rem var(--container-padding);
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-mobile.open {
  display: flex;
}

.mobile-menu-overlay {
  display: none;
  position: fixed;
  z-index: 999;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  transition: opacity 0.2s;
  opacity: 0;
}

.mobile-menu-overlay.active {
  opacity: 1;
  display: block;
}

.nav-mobile a {
  width: 100%;
  padding: 0.875rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
}

.nav-mobile a:last-child {
  border-bottom: none;
}

.language-selector-mobile {
  width: 100%;
  margin-top: 0.5rem;
}

@media (max-width: 1080px) {
  .header {
    display: none !important;
  }
  .header-mobile {
    display: block;
  }
}

@media (min-width: 1081px) {
  .header-mobile {
    display: none !important;
  }
}

/* Custom Language Selector */
.custom-lang-select {
  position: relative;
  display: inline-block;
}

.custom-lang-select .lang-selected {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--border-radius-full);
  padding: 0.35rem 1rem 0.35rem 0.7rem;
  font-size: var(--font-size-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 60px;
  color: rgba(255, 255, 255, 0.8);
  transition: all var(--transition-fast);
}

.custom-lang-select .lang-selected:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.custom-lang-select .lang-selected img {
  vertical-align: middle;
}

.custom-lang-select .lang-options {
  display: none;
  position: absolute;
  left: 0;
  top: calc(100% + 8px);
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-xl);
  margin: 0;
  padding: 0.375rem;
  list-style: none;
  min-width: 100%;
  z-index: 10;
}

.custom-lang-select.open .lang-options {
  display: block;
}

.custom-lang-select .lang-options li {
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--font-size-sm);
  border-radius: var(--border-radius-sm);
  transition: background var(--transition-fast);
}

.custom-lang-select .lang-options li:hover {
  background: var(--background-light);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--border-radius-full);
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  white-space: nowrap;
  user-select: none;
  letter-spacing: var(--letter-spacing-wide);
}

.btn-primary {
  background: var(--gradient-accent);
  color: var(--primary-dark);
  border-radius: var(--border-radius-full);
  box-shadow: var(--shadow-accent);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  padding: 0.875rem 2rem;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
  transition: all var(--transition-normal);
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px -4px rgba(78, 205, 196, 0.45);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border);
  border-radius: var(--border-radius-full);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  padding: 0.625rem 1.5rem;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  transition: all var(--transition-normal);
}

.btn-secondary:hover {
  background: var(--text-primary);
  color: var(--text-light);
  border-color: var(--text-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: var(--gradient-accent);
  color: var(--primary-dark);
  border: none;
  border-radius: var(--border-radius-full);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  box-shadow: var(--shadow-accent);
  padding: 0.875rem 2rem;
  transition: all var(--transition-normal);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px -4px rgba(78, 205, 196, 0.45);
}

/* Module Cards */
.module-card {
  background: var(--gradient-card);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: left;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-slow);
  cursor: pointer;
  border: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.module-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.module-card:hover {
  border-color: rgba(78, 205, 196, 0.2);
  /* transform: translateY(-6px); */
  box-shadow: var(--shadow-xl);
}

.module-card:hover::before {
  opacity: 1;
}

.module-card .module-icon {
  width: 52px;
  height: 52px;
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  border-radius: var(--border-radius);
  padding: 10px;
}

.module-card .module-icon img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.module-card h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  letter-spacing: var(--letter-spacing-tight);
}

.module-card .module-target {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--secondary-color);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

.module-card .module-description {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: var(--line-height-relaxed);
  font-size: var(--font-size-sm);
  flex: 1;
}

.module-card .btn-secondary {
  margin-top: auto;
  align-self: flex-start;
}

/* CTA Warning */
.cta-warning-container {
  width: 100%;
  text-align: left;
  margin: var(--spacing-sm) 0;
}

.cta-warning-text {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
}

/* Contact Button */
.contact-btn {
  font-size: var(--font-size-base) !important;
  padding: 1rem 2.5rem !important;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: var(--z-modal);
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
  animation: modalFadeIn var(--transition-normal);
}

.modal-content {
  background: var(--background);
  border-radius: var(--border-radius-2xl);
  box-shadow: var(--shadow-2xl);
  max-width: 720px;
  width: 92%;
  max-height: 88vh;
  overflow-y: auto;
  position: relative;
  animation: modalSlideIn var(--transition-slow);
  border: 1px solid var(--border-light);
}

.modal-header {
  padding: var(--spacing-2xl) var(--spacing-2xl) var(--spacing-lg);
  border-bottom: 1px solid var(--border-light);
}

.modal-header h2 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  letter-spacing: var(--letter-spacing-tight);
}

.modal-subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
}

.modal-video {
  padding: 0 var(--spacing-2xl);
  margin: var(--spacing-xl) 0;
}

.modal-video video {
  width: 100%;
  border-radius: var(--border-radius-lg);
}

.modal-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  padding: 0 var(--spacing-2xl);
  margin-bottom: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.features-column h3,
.benefits-column h3 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  font-size: var(--font-size-xs);
  opacity: 0.6;
}

.features-column ul,
.benefits-column ul {
  color: var(--text-secondary);
}

.features-column li,
.benefits-column li {
  padding: var(--spacing-xs) 0;
  line-height: var(--line-height-relaxed);
  font-size: var(--font-size-sm);
}

.modal-cta {
  padding: var(--spacing-xl) var(--spacing-2xl);
  border-top: 1px solid var(--border-light);
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
}

.close {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  font-size: var(--font-size-xl);
  color: var(--text-tertiary);
  cursor: pointer;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-full);
  transition: all var(--transition-fast);
}

.close:hover {
  background: var(--background-light);
  color: var(--text-primary);
}

/* Animations */
.fade-in-element {
  opacity: 0;
  transform: translateY(24px);
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-fade-in {
  opacity: 1;
  transform: translateY(0);
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Focus */
.btn:focus,
.module-card:focus {
  outline: 2px solid var(--secondary-color);
  outline-offset: 2px;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  .fade-in-element,
  .modal-content,
  .btn,
  .card,
  .module-card {
    transition: none;
    animation: none;
  }
  .animate-fade-in {
    transform: none;
  }
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  .nav-mobile {
    background: var(--background-dark);
  }
  .hamburger-mobile span {
    background: var(--text-primary);
  }
  .module-card {
    background: var(--gradient-card);
    border-color: var(--border);
  }
  .btn-secondary {
    color: var(--secondary-color);
    border-color: rgba(78, 205, 196, 0.3);
  }
  .btn-secondary:hover {
    background: var(--secondary-color);
    color: var(--primary-dark);
    border-color: var(--secondary-color);
  }
}