/* Base Styles */
:root {
  --primary-color: #4A6D8C;
  --secondary-color: #6B6A6A;
  --background-color: #FFFFFF;
  --foreground-color: #111111;
  --tertiary-color: #E2E2E2;
  --quaternary-color: #F3F2F2;
  --font-family: "Albert Sans", ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --border-radius: 8px;
  --max-width: 1680px;
  --content-width: 720px;
}

/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 1.1rem;
  line-height: 1.5;
  color: var(--foreground-color);
  background-color: var(--background-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--primary-color);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: clamp(2.25rem, 5vw, 4rem); }
h2 { font-size: clamp(1.75rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2.25rem); }

p {
  margin-bottom: 1.5rem;
  font-size: 1.125rem;
}

ul { list-style: none; }

button {
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

main {
  padding-top: calc(60px + var(--spacing-md));
  padding-bottom: var(--spacing-lg);
}

.content-container {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: var(--spacing-md) 0;
}

/* Header */
.site-header {
  padding: 0.75rem 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--background-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

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

.logo-container {
  display: flex;
  align-items: center;
}

.logo-container h2 {
  font-size: 1.5rem;
  margin-bottom: 0;
}

.logo {
  width: 28px;
  height: auto;
  margin-right: 0.75rem;
}

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  gap: var(--spacing-md);
}

.nav-item {
  font-size: 1rem;
  font-weight: 500;
}

.nav-item.active a {
  color: var(--primary-color);
  font-weight: 600;
  border-bottom: 2px solid var(--primary-color);
  padding-bottom: 3px;
}

.mobile-menu-toggle {
  display: none;
  font-size: 1.5rem;
}

/* Hero Section */
.hero {
  padding: var(--spacing-lg) 0;
  background-color: var(--quaternary-color);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-lg);
}

.hero-title {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  margin-bottom: var(--spacing-sm);
  font-weight: 400;
}

/* Content Section */
.content-section {
  padding: var(--spacing-sm) 0;
}

.section-title {
  margin-bottom: var(--spacing-md);
  color: var(--primary-color);
}

/* Page Title */
.page-title {
  margin-bottom: var(--spacing-md);
}

/* Feature Cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.feature-card {
  background-color: var(--quaternary-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.feature-icon {
  width: 50px;
  height: 50px;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-color);
}

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

/* Process Timeline */
.process-timeline {
  margin: var(--spacing-lg) 0;
}

.process-step {
  display: flex;
  margin-bottom: var(--spacing-md);
  position: relative;
}

.step-number {
  background-color: var(--primary-color);
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  margin-right: var(--spacing-md);
  flex-shrink: 0;
}

.step-content {
  padding-bottom: var(--spacing-md);
}

.step-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

/* Separator */
.separator {
  height: 4px;
  background-color: var(--tertiary-color);
  margin: var(--spacing-md) 0;
  width: 100%;
  clip-path: polygon(0 0, 100% 100%, 100% 0);
}

/* CTA Section */
.cta-section {
  background-color: var(--quaternary-color);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  text-align: center;
  margin: var(--spacing-xl) 0;
}

.cta-title {
  margin-bottom: var(--spacing-md);
}

.btn {
  display: inline-block;
  background-color: var(--primary-color);
  color: white;
  padding: 0.75rem 2rem;
  border-radius: 999px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn:hover {
  background-color: #3A5D7C;
  color: white;
  transform: translateY(-2px);
}

/* Portal Styles */
.portal-container {
  max-width: 480px;
  margin: var(--spacing-xl) auto;
  text-align: center;
}

.portal-form {
  background-color: var(--quaternary-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.portal-form label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--secondary-color);
  margin-bottom: 0.5rem;
  text-align: left;
}

.portal-form input[type="text"],
.portal-form input[type="password"] {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--tertiary-color);
  border-radius: var(--border-radius);
  font-family: var(--font-family);
  font-size: 1rem;
  margin-bottom: var(--spacing-sm);
  transition: border-color 0.3s ease;
}

.portal-form input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.portal-form .btn {
  width: 100%;
  margin-top: 0.5rem;
  border: none;
  font-size: 1rem;
  cursor: pointer;
}

.portal-error {
  color: #c0392b;
  font-size: 0.9rem;
  margin-top: 0.5rem;
  display: none;
}

.portal-error.visible {
  display: block;
}

.portal-description {
  color: var(--secondary-color);
  font-size: 1rem;
}

/* Footer */
.site-footer {
  padding: var(--spacing-md) 0;
  border-top: 1px solid var(--tertiary-color);
}

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

.footer-info {
  display: flex;
  gap: var(--spacing-md);
}

.footer-info p {
  margin-bottom: 0;
}

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

.social-icon {
  width: 24px;
  height: 24px;
}

/* Responsive */
@media (max-width: 1024px) {
  :root {
    --spacing-xl: 3rem;
  }
}

@media (max-width: 768px) {
  .site-header {
    padding: var(--spacing-sm) 0;
  }

  main {
    padding-top: calc(60px + var(--spacing-md));
  }

  .logo-container h2 {
    font-size: 1.2rem;
  }

  .header-container {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
  }

  .mobile-menu-toggle {
    display: block;
    position: relative;
  }

  .main-nav {
    width: 100%;
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--background-color);
    padding: var(--spacing-md);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
  }

  .main-nav.active {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

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

  .footer-container {
    flex-direction: row;
    gap: var(--spacing-sm);
    align-items: center;
    justify-content: space-between;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-lg: 2rem;
    --spacing-xl: 2.5rem;
  }

  h1 {
    font-size: clamp(2rem, 8vw, 2.5rem);
  }

  .logo {
    width: 20px;
  }

  .cta-section {
    padding: var(--spacing-md);
  }
}