/* Sandalye Arkası Duvar Koruyucu Page Styles */

/* Header / Navigation */
.site-header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  border-bottom: 1px solid var(--color-gray-200);
}

.site-header .container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  position: relative;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo {
  height: 50px;
  width: auto;
  display: block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: var(--space-3) var(--space-5);
  color: var(--color-text-primary);
  text-decoration: none;
  font-size: var(--font-size-base);
  font-weight: 500;
  border-radius: var(--radius-base);
  transition: all var(--transition-base);
  position: relative;
}

.nav-link:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

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

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  color: var(--color-text-primary);
  transition: color var(--transition-base);
}

.mobile-menu-toggle:hover {
  color: var(--color-primary);
}

.mobile-menu-toggle:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Page Header */
.page-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  padding: var(--space-12) var(--space-4);
  text-align: center;
  color: var(--color-white);
  margin-bottom: var(--space-12);
}

.page-header .container {
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.page-title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  margin: 0 0 var(--space-4) 0;
  line-height: 1.2;
}

.page-subtitle {
  font-size: var(--font-size-lg);
  margin: 0;
  opacity: 0.95;
}

/* Hero Section */
.hero-section {
  padding: var(--space-12) 0;
  margin-bottom: var(--space-12);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}

.hero-content__image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.hero-content__image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.hero-content__text {
  padding: var(--space-4);
}

.hero-content__title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0 0 var(--space-6) 0;
  line-height: 1.3;
}

.hero-content__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin: 0 0 var(--space-4) 0;
}

.hero-content__description:last-child {
  margin-bottom: 0;
}

.hero-content__description a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-base);
}

.hero-content__description a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* Features Section */
.features-section {
  padding: var(--space-12) 0;
  background-color: var(--color-gray-50);
  margin-bottom: var(--space-12);
}

.features-section .section-title {
  text-align: center;
  margin-bottom: var(--space-10);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

.feature-card {
  background-color: var(--color-white);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-base);
  text-align: center;
  transition: all var(--transition-base);
  border: 1px solid var(--color-gray-200);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.feature-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-6) auto;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-full);
  color: var(--color-white);
}

.feature-card__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 var(--space-4) 0;
}

.feature-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Applications Section */
.applications-section {
  padding: var(--space-12) 0;
  margin-bottom: var(--space-12);
}

.applications-section .section-title {
  text-align: center;
  margin-bottom: var(--space-10);
}

.applications-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.application-card {
  background-color: var(--color-white);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-base);
  transition: all var(--transition-base);
  border: 1px solid var(--color-gray-200);
}

.application-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.application-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-full);
  color: var(--color-white);
}

.application-card__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 var(--space-4) 0;
}

.application-card__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Info Section */
.info-section {
  padding: var(--space-12) 0;
  background-color: var(--color-gray-50);
  margin-bottom: var(--space-12);
}

.info-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-base);
  overflow: hidden;
  border: 1px solid var(--color-gray-200);
}

.info-card__header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  padding: var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--color-white);
}

.info-card__title {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  margin: 0;
}

.info-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
}

.info-card__content {
  padding: var(--space-8);
}

.info-card__description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin: 0;
}

/* Footer */
.site-footer {
  background-color: var(--color-text-primary);
  color: var(--color-white);
  padding: var(--space-12) 0 var(--space-8) 0;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-10);
  align-items: start;
}

.footer-section__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin: 0 0 var(--space-6) 0;
  color: var(--color-white);
}

.footer-contact__item {
  font-size: var(--font-size-base);
  color: var(--color-gray-300);
  line-height: 1.8;
  margin: 0 0 var(--space-4) 0;
}

.footer-contact__item strong {
  color: var(--color-white);
  font-weight: 600;
  display: inline-block;
  margin-right: var(--space-2);
}

.footer-address {
  font-size: var(--font-size-base);
  color: var(--color-gray-300);
  line-height: 1.8;
  margin: 0;
}

.footer-section--copyright {
  text-align: right;
}

.copyright {
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
  margin: 0;
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 9999;
  display: none;
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 300px;
  max-width: 85%;
  height: 100%;
  background-color: var(--color-white);
  box-shadow: var(--shadow-xl);
  transition: right var(--transition-base);
  z-index: 10000;
  display: flex;
  flex-direction: column;
}

.mobile-menu-overlay--active .mobile-menu {
  right: 0;
}

.mobile-menu__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: none;
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
  padding: var(--space-2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-base);
}

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

.mobile-menu__nav {
  margin-top: var(--space-16);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-menu__link {
  display: block;
  padding: var(--space-4) var(--space-6);
  color: var(--color-text-primary);
  text-decoration: none;
  font-size: var(--font-size-lg);
  font-weight: 500;
  border-radius: var(--radius-base);
  transition: all var(--transition-base);
}

.mobile-menu__link:hover,
.mobile-menu__link--active {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .nav-menu {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .hero-content__image {
    order: -1;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

  .applications-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-section--copyright {
    text-align: center;
  }
}

@media (max-width: 768px) {
  .page-header {
    padding: var(--space-8) var(--space-4);
  }

  .page-title {
    font-size: var(--font-size-4xl);
  }

  .page-subtitle {
    font-size: var(--font-size-base);
  }

  .hero-section,
  .features-section,
  .applications-section,
  .info-section {
    padding: var(--space-8) 0;
  }

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

  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .feature-card,
  .application-card {
    padding: var(--space-6);
  }

  .feature-card__icon,
  .application-card__icon {
    width: 64px;
    height: 64px;
  }

  .info-card__header {
    flex-direction: column;
    text-align: center;
    gap: var(--space-4);
  }

  .info-card__title {
    font-size: var(--font-size-xl);
  }

  .info-card__icon {
    width: 48px;
    height: 48px;
  }

  .site-footer {
    padding: var(--space-8) 0 var(--space-6) 0;
  }
}

@media (max-width: 480px) {
  .page-title {
    font-size: var(--font-size-3xl);
  }

  .hero-content__title {
    font-size: var(--font-size-2xl);
  }

  .hero-content__description {
    font-size: var(--font-size-sm);
  }

  .feature-card,
  .application-card {
    padding: var(--space-4);
  }

  .feature-card__icon,
  .application-card__icon {
    width: 56px;
    height: 56px;
  }

  .feature-card__title,
  .application-card__title {
    font-size: var(--font-size-lg);
  }

  .feature-card__description,
  .application-card__description {
    font-size: var(--font-size-xs);
  }

  .info-card__content {
    padding: var(--space-6);
  }

  .info-card__description {
    font-size: var(--font-size-sm);
  }

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

  .footer-contact__item,
  .footer-address {
    font-size: var(--font-size-sm);
  }
}

/* Print Styles */
@media print {
  .page-header,
  .site-footer,
  .mobile-menu-toggle,
  .mobile-menu-overlay {
    display: none !important;
  }

  .hero-section,
  .features-section,
  .applications-section,
  .info-section {
    page-break-inside: avoid;
  }

  .feature-card,
  .application-card,
  .info-card {
    box-shadow: none;
    border: 1px solid var(--color-gray-300);
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  .feature-card,
  .application-card,
  .mobile-menu-overlay,
  .mobile-menu {
    transition: none;
  }

  .feature-card:hover,
  .application-card:hover {
    transform: none;
  }
}

/* Focus Styles */
.mobile-menu-toggle:focus,
.mobile-menu__close:focus,
.mobile-menu__link:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .feature-card,
  .application-card,
  .info-card {
    border: 2px solid var(--color-text-primary);
  }

  .feature-card__icon,
  .application-card__icon {
    background-color: var(--color-primary);
  }
}