/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.header__logo img {
  width: 48px;
  height: 48px;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.header__nav-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.header__nav-link:hover {
  color: var(--color-primary);
}

.header__lang-switch {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.header__lang-link {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.header__lang-link--active {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.header__lang-link:hover:not(.header__lang-link--active) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Hero */
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  text-align: center;
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-secondary) 100%
  );
  color: white;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

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

.hero__logo {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--spacing-xl);
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__logo img {
  width: 100%;
  height: 100%;
}

.hero__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
}

.hero__subtitle {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-normal);
  opacity: 0.95;
  margin-bottom: var(--spacing-xl);
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  background-color: white;
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.hero__cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-primary-dark);
}

/* Section Header */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-xl);
}

.section-header__title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
}

.section-header__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
}

/* Card */
.card {
  background-color: var(--color-surface-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base),
    box-shadow var(--transition-base);
  border: 1px solid var(--color-border-light);
}

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

.card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-md);
  background-color: var(--color-primary-light);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card__icon svg {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
}

.card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-sm);
}

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

/* Badge */
.badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

/* Button */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
}

.button--primary {
  background-color: var(--color-primary);
  color: white;
}

.button--primary:hover {
  background-color: var(--color-primary-dark);
}

.button--secondary {
  background-color: var(--color-secondary);
  color: white;
}

.button--secondary:hover {
  background-color: var(--color-secondary-dark);
}

.button--outline {
  background-color: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.button--outline:hover {
  background-color: var(--color-primary-light);
}

/* Icon */
.icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

/* Footer */
.footer {
  background-color: var(--color-surface-card);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-xxl) 0 var(--spacing-xl);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
}

.footer__links {
  display: flex;
  gap: var(--spacing-lg);
}

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

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

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

/* Responsive */
@media (max-width: 768px) {
  .header__nav {
    display: none;
  }

  .hero__title {
    font-size: var(--font-size-3xl);
  }

  .hero__subtitle {
    font-size: var(--font-size-lg);
  }

  .section-header__title {
    font-size: var(--font-size-2xl);
  }
}