@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@600;700;800&family=Lato:wght@300;400;500;700&display=swap');

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

body {
  font-family: 'Lato', sans-serif;
  color: #1f2937;
  background-color: #ffffff;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2.25rem;
  margin-bottom: 1.5rem;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .container {
    padding: 0 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 2rem;
  }
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: white;
  border-bottom: 1px solid #e5e7eb;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, #1e40af, #0d9488);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 1.125rem;
}

.logo-text {
  display: none;
}

@media (min-width: 640px) {
  .logo-text {
    display: block;
  }
  
  .logo-text .institution {
    font-size: 0.875rem;
    font-weight: 600;
    color: #111827;
  }
  
  .logo-text .subtitle {
    font-size: 0.75rem;
    color: #4b5563;
  }
}

nav {
  display: none;
  gap: 2rem;
}

@media (min-width: 768px) {
  nav {
    display: flex;
  }
}

nav a {
  color: #374151;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

nav a:hover {
  color: #1e40af;
}

.menu-button {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

@media (max-width: 767px) {
  .menu-button {
    display: block;
  }
}

/* Footer */
footer {
  background-color: #111827;
  color: #d1d5db;
  margin-top: 6rem;
}

.footer-content {
  padding: 4rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-section h3 {
  color: white;
  font-size: 1.125rem;
  margin-bottom: 1rem;
}

.footer-section p {
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

.footer-divider {
  border-top: 1px solid #374151;
  padding: 2rem 0;
}

.material-declaration {
  background-color: #1f2937;
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.material-declaration p {
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.footer-copyright {
  text-align: center;
  font-size: 0.75rem;
  color: #6b7280;
  margin-top: 1rem;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #f0f9ff, #ffffff, #f0fdfa);
  padding: 5rem 0;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-text h1 {
  margin-bottom: 1rem;
}

.hero-text .highlight {
  background: linear-gradient(90deg, #1e40af, #0d9488);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text p {
  font-size: 1.25rem;
  color: #4b5563;
  margin-bottom: 2rem;
}

.badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: #dbeafe;
  color: #1e40af;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background-color: #1e40af;
  color: white;
}

.btn-primary:hover {
  background-color: #1e3a8a;
}

.btn-secondary {
  border: 2px solid #d1d5db;
  color: #111827;
  background-color: transparent;
}

.btn-secondary:hover {
  border-color: #1e40af;
  color: #1e40af;
}

.hero-image {
  width: 100%;
  height: 384px;
  border-radius: 1rem;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
  object-fit: cover;
}

/* Stats Section */
.stats {
  background: linear-gradient(90deg, #1e40af, #0d9488);
  color: white;
  padding: 3rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-item .number {
  font-size: 2.25rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.stat-item .label {
  font-size: 0.875rem;
  opacity: 0.9;
}

/* Cards Section */
.cards-section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.125rem;
  color: #4b5563;
  max-width: 42rem;
  margin: 0 auto;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background-color: white;
  border-radius: 0.75rem;
  padding: 2rem;
  border: 1px solid #e5e7eb;
  transition: box-shadow 0.3s;
}

.card:hover {
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.card-icon.blue {
  background-color: #dbeafe;
  color: #1e40af;
}

.card-icon.teal {
  background-color: #ccfbf1;
  color: #0d9488;
}

.card-icon.purple {
  background-color: #f3e8ff;
  color: #8b5cf6;
}

.card h3 {
  margin-bottom: 0.75rem;
}

.card p {
  color: #4b5563;
}

/* CTA Section */
.cta {
  background: linear-gradient(90deg, #1e40af, #0d9488);
  color: white;
  padding: 4rem 0;
  text-align: center;
}

.cta h2 {
  color: white;
  margin-bottom: 1.5rem;
}

.cta p {
  font-size: 1.25rem;
  opacity: 0.9;
  max-width: 42rem;
  margin: 0 auto 2rem;
}

.btn-light {
  background-color: white;
  color: #1e40af;
}

.btn-light:hover {
  background-color: #f0f9ff;
}

/* Main Content */
main {
  flex: 1;
}

.page {
  display: none;
}

.page.active {
  display: block;
}

/* Breadcrumb */
.breadcrumb {
  padding: 1.5rem 0;
  border-bottom: 1px solid #e5e7eb;
}

.breadcrumb a {
  color: #1e40af;
  text-decoration: none;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* Page Header */
.page-header {
  background: linear-gradient(135deg, #f0f9ff, #f0fdfa);
  padding: 4rem 0;
}

.page-header h1 {
  margin-bottom: 1rem;
}

.page-header p {
  font-size: 1.25rem;
  color: #4b5563;
  max-width: 42rem;
}

/* Content Section */
.content-section {
  padding: 5rem 0;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .content-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.content-grid.reverse {
  direction: rtl;
}

.content-grid.reverse > * {
  direction: ltr;
}

.content-text h2 {
  margin-bottom: 1.5rem;
}

.content-text p {
  font-size: 1.125rem;
  color: #4b5563;
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.content-image {
  width: 100%;
  height: 384px;
  border-radius: 1rem;
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
  object-fit: cover;
}

/* Lists */
.check-list {
  list-style: none;
  margin-bottom: 2rem;
}

.check-list li {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}

.check-list .icon {
  color: #10b981;
  font-weight: bold;
  flex-shrink: 0;
}

.check-list p {
  color: #4b5563;
}

/* Comparison Cards */
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.comparison-card {
  border-radius: 0.75rem;
  padding: 2rem;
  border: 2px solid;
}

.comparison-card.problems {
  background-color: #fef2f2;
  border-color: #fecaca;
}

.comparison-card.benefits {
  background-color: #f0fdf4;
  border-color: #bbf7d0;
}

.comparison-card h3 {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.comparison-card ul {
  list-style: none;
}

.comparison-card li {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
}

.comparison-card .bullet {
  font-weight: bold;
  flex-shrink: 0;
}

/* Code Block */
.code-block {
  background-color: #1f2937;
  color: #4ade80;
  padding: 1.5rem;
  border-radius: 0.5rem;
  overflow-x: auto;
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  line-height: 1.5;
  white-space: pre;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

/* Lifecycle Steps */
.lifecycle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.lifecycle-step {
  background: linear-gradient(135deg, #f0f9ff, #f0fdfa);
  border-radius: 0.75rem;
  padding: 1.5rem;
  border: 2px solid;
  text-align: center;
}

.lifecycle-step.init {
  border-color: #3b82f6;
}

.lifecycle-step.plan {
  border-color: #0d9488;
}

.lifecycle-step.apply {
  border-color: #8b5cf6;
}

.lifecycle-step.destroy {
  border-color: #ef4444;
}

.lifecycle-step .number {
  width: 48px;
  height: 48px;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  color: white;
  margin: 0 auto 1rem;
  font-size: 1.25rem;
}

.lifecycle-step.init .number {
  background-color: #3b82f6;
}

.lifecycle-step.plan .number {
  background-color: #0d9488;
}

.lifecycle-step.apply .number {
  background-color: #8b5cf6;
}

.lifecycle-step.destroy .number {
  background-color: #ef4444;
}

.lifecycle-step h3 {
  margin-bottom: 0.5rem;
}

.lifecycle-step p {
  font-size: 0.875rem;
  color: #4b5563;
}

/* Resources Grid */
.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.resource-card {
  background-color: white;
  border-radius: 0.75rem;
  padding: 1.5rem;
  border: 1px solid #e5e7eb;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.3s;
}

.resource-card:hover {
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
}

.resource-card .icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.resource-card h3 {
  margin-bottom: 0.5rem;
}

.resource-card p {
  font-size: 0.875rem;
  color: #4b5563;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mb-4 {
  margin-bottom: 1rem;
}

.mb-6 {
  margin-bottom: 1.5rem;
}

.mb-8 {
  margin-bottom: 2rem;
}

.mt-4 {
  margin-top: 1rem;
}

.gap-2 {
  gap: 0.5rem;
}

.gap-4 {
  gap: 1rem;
}

.flex {
  display: flex;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}