:root {
  --color-primary: #1E40AF;
  --color-primary-dark: #1E3A8A;
  --color-secondary: #6B7280;
  --color-text: #1F2937;
  --color-text-light: #6B7280;
  --color-bg: #FFFFFF;
  --color-bg-light: #F9FAFB;
  --color-border: #E5E7EB;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --spacing-unit: 8px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 calc(var(--spacing-unit) * 3);
}

h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 600;
  color: var(--color-text);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: calc(var(--spacing-unit) * 2);
}

h2 {
  font-size: 2rem;
  margin-bottom: calc(var(--spacing-unit) * 2);
}

h3 {
  font-size: 1.5rem;
  margin-bottom: calc(var(--spacing-unit));
}

h4 {
  font-size: 1.125rem;
  margin-bottom: calc(var(--spacing-unit));
}

p {
  margin-bottom: calc(var(--spacing-unit) * 2);
  line-height: 1.5;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: calc(var(--spacing-unit) * 2) 0;
}

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

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing-unit) * 1.5);
}

.logo-icon {
  flex-shrink: 0;
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
}

.page-content {
  padding: calc(var(--spacing-unit) * 8) 0;
  min-height: 60vh;
}

.page-header {
  text-align: center;
  margin-bottom: calc(var(--spacing-unit) * 6);
}

.page-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-light);
  margin-top: calc(var(--spacing-unit) * 2);
}

.about-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--spacing-unit) * 6);
  align-items: center;
  margin-bottom: calc(var(--spacing-unit) * 8);
}

.about-section-reverse {
  direction: rtl;
}

.about-section-reverse > * {
  direction: ltr;
}

.about-content h2 {
  margin-bottom: calc(var(--spacing-unit) * 3);
}

.about-content p {
  color: var(--color-text-light);
  font-size: 1.125rem;
  line-height: 1.6;
  margin-bottom: calc(var(--spacing-unit) * 2);
}

.about-visual {
  width: 100%;
}

.placeholder-image {
  width: 100%;
  background-color: var(--color-bg-light);
  border-radius: calc(var(--spacing-unit));
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.content-section {
  max-width: 900px;
  margin: 0 auto;
  background-color: white;
  padding: calc(var(--spacing-unit) * 6);
  border-radius: calc(var(--spacing-unit));
  border: 1px solid var(--color-border);
}

.content-section h2 {
  margin-top: calc(var(--spacing-unit) * 4);
  margin-bottom: calc(var(--spacing-unit) * 2);
}

.content-section h3 {
  margin-top: calc(var(--spacing-unit) * 3);
  margin-bottom: calc(var(--spacing-unit) * 1.5);
}

.content-section p {
  color: var(--color-text-light);
  font-size: 1.125rem;
  line-height: 1.6;
}

.content-section ul {
  margin-bottom: calc(var(--spacing-unit) * 2);
  padding-left: calc(var(--spacing-unit) * 3);
}

.content-section li {
  margin-bottom: calc(var(--spacing-unit));
  color: var(--color-text-light);
}

.footer {
  background-color: var(--color-text);
  color: white;
  padding: calc(var(--spacing-unit) * 6) 0 calc(var(--spacing-unit) * 3);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: calc(var(--spacing-unit) * 6);
  margin-bottom: calc(var(--spacing-unit) * 4);
}

.footer-brand .logo-wrapper .brand-name {
  color: white;
}

.footer-tagline {
  color: rgba(255, 255, 255, 0.7);
  margin-top: calc(var(--spacing-unit) * 2);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--spacing-unit) * 4);
}

.footer-column h4 {
  color: white;
  margin-bottom: calc(var(--spacing-unit) * 2);
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: calc(var(--spacing-unit));
}

.footer-column a {
  color: rgba(255, 255, 255, 0.7);
}

.footer-column a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: calc(var(--spacing-unit) * 3);
  text-align: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0;
}

@media (max-width: 1024px) {
  .about-section {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .content-section {
    padding: calc(var(--spacing-unit) * 4);
  }

  .footer-links {
    grid-template-columns: 1fr;
  }
}