:root {
  /* Primary Color Palette */
  --primary-color: #1e88e5;
  --primary-light: #6ab7ff;
  --primary-dark: #005cb2;
  
  /* Analog Scheme Colors */
  --analog-1: #1976d2;
  --analog-2: #2196f3;
  --analog-3: #0d47a1;
  
  /* Accent Colors */
  --accent-color: #4caf50;
  --accent-light: #80e27e;
  --accent-dark: #087f23;
  
  /* Neutral Colors */
  --text-color: #333333;
  --text-light: #757575;
  --text-white: #ffffff;
  --bg-light: #f5f9ff;
  --bg-dark: #1a1a2e;
  
  /* Neomorphism Shadows */
  --shadow-light: rgba(255, 255, 255, 0.8);
  --shadow-dark: rgba(0, 0, 0, 0.15);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
  
  /* Border Radius */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 20px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

body {
  font-family: 'Roboto', sans-serif;
  color: var(--text-color);
  background-color: var(--bg-light);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Archivo Black', sans-serif;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
  color: var(--text-color);
}

p {
  margin-bottom: var(--spacing-sm);
}

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

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

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

.section-padding {
  padding: var(--spacing-xl) 0;
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: var(--spacing-md);
  position: relative;
  color: var(--primary-dark);
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
  margin: var(--spacing-sm) auto 0;
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: var(--spacing-lg);
}

/* Button Styles */
.btn, 
button, 
input[type='submit'] {
  display: inline-block;
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: 1px solid transparent;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  z-index: 1;
  cursor: pointer;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transition: width var(--transition-normal);
  z-index: -1;
}

.btn:hover::before {
  width: 100%;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--text-white);
  box-shadow: 0 4px 6px var(--shadow-dark);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px var(--shadow-dark);
  color: var(--text-white);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--text-white);
  color: var(--text-white);
}

.btn-outline:hover {
  background-color: var(--text-white);
  color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px var(--shadow-dark);
}

.btn-event {
  background-color: var(--accent-color);
  color: var(--text-white);
}

.btn-event:hover {
  background-color: var(--accent-dark);
  color: var(--text-white);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-block {
  display: block;
  width: 100%;
}

/* Header & Navigation */
.header {
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-normal);
}

.navbar {
  padding: 1rem 0;
}

.navbar-brand {
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.5rem;
  color: var(--primary-color);
  font-weight: 700;
}

.navbar-brand:hover {
  color: var(--primary-dark);
}

.navbar-nav .nav-link {
  color: var(--text-color);
  font-weight: 500;
  padding: 0.5rem 1rem;
  margin: 0 0.2rem;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-normal);
}

.navbar-nav .nav-link:hover {
  color: var(--primary-color);
  background-color: rgba(30, 136, 229, 0.05);
}

.navbar-toggler {
  border: none;
  background: transparent;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--text-white);
  z-index: 1;
}

.hero .overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(13, 71, 161, 0.8), rgba(33, 150, 243, 0.6));
  z-index: -1;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  padding: var(--spacing-lg) 0;
  z-index: 2;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  margin-bottom: var(--spacing-sm);
  color: var(--text-white);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--text-white);
  font-weight: 300;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* Methodology Section */
.methodology {
  background-color: var(--bg-light);
}

.methodology-steps {
  margin-bottom: var(--spacing-lg);
}

.method-card {
  background-color: white;
  border-radius: var(--border-radius-md);
  box-shadow: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
  padding: var(--spacing-md);
  height: 100%;
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.method-card:hover {
  transform: translateY(-5px);
}

.method-icon {
  width: 100px;
  height: 100px;
  margin-bottom: var(--spacing-sm);
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 4px 4px 8px var(--shadow-dark), -4px -4px 8px var(--shadow-light);
}

.method-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.method-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-dark);
}

.progress-container {
  width: 100%;
  margin-top: auto;
  padding-top: var(--spacing-sm);
}

.progress {
  height: 8px;
  background-color: #e0e0e0;
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar {
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
  height: 100%;
  border-radius: 4px;
}

.progress-text {
  display: block;
  text-align: center;
  margin-top: 5px;
  font-size: 0.9rem;
  color: var(--text-light);
}

.methodology-advanced {
  background-color: white;
  border-radius: var(--border-radius-md);
  box-shadow: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
  padding: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.methodology-advanced h3 {
  text-align: center;
  margin-bottom: var(--spacing-md);
  color: var(--primary-dark);
}

.advanced-feature {
  padding: var(--spacing-sm);
}

.advanced-feature h4 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-xs);
}

/* Case Studies Section */
.case-studies {
  background-color: #f5f5f5;
}

.case-card {
  background-color: white;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
  margin-bottom: var(--spacing-md);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.case-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.case-card:hover .case-image img {
  transform: scale(1.05);
}

.case-content {
  padding: var(--spacing-md);
  text-align: center;
}

.case-content h3 {
  font-size: 1.5rem;
  margin-bottom: 5px;
  color: var(--primary-dark);
}

.case-subtitle {
  color: var(--text-light);
  font-style: italic;
  margin-bottom: var(--spacing-sm);
}

.case-results {
  display: flex;
  justify-content: space-around;
  margin-top: var(--spacing-sm);
  padding-top: var(--spacing-sm);
  border-top: 1px solid #eee;
}

.result-item {
  text-align: center;
}

.result-value {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
}

.result-label {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* External Resources Section */
.external-resources {
  background-color: white;
}

.resource-card {
  background-color: var(--bg-light);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  box-shadow: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
  height: 100%;
  transition: transform var(--transition-normal);
}

.resource-card:hover {
  transform: translateY(-5px);
}

.resource-card h3 {
  color: var(--primary-dark);
  margin-bottom: var(--spacing-xs);
}

.resource-link {
  display: inline-flex;
  align-items: center;
  color: var(--primary-color);
  font-weight: 500;
  margin-top: var(--spacing-sm);
  transition: color var(--transition-normal);
}

.resource-link:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.arrow-icon {
  border: solid var(--primary-color);
  border-width: 0 2px 2px 0;
  display: inline-block;
  padding: 3px;
  margin-left: 5px;
  transform: rotate(-45deg);
  transition: border-color var(--transition-normal);
}

.resource-link:hover .arrow-icon {
  border-color: var(--primary-dark);
}

/* Community Section */
.community {
  background-color: #f5f5f5;
}

.community-benefits {
  margin-bottom: var(--spacing-lg);
}

.community-image {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
  height: 350px;
}

.community-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.community-content {
  padding: var(--spacing-sm);
}

.community-content h3 {
  margin-bottom: var(--spacing-md);
  color: var(--primary-dark);
}

.accordion-item {
  border: none;
  margin-bottom: var(--spacing-sm);
  box-shadow: 4px 4px 8px var(--shadow-dark), -4px -4px 8px var(--shadow-light);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
}

.accordion-button {
  background-color: white;
  color: var(--primary-dark);
  font-family: 'Archivo Black', sans-serif;
  padding: 1.25rem;
  border-radius: var(--border-radius-sm) !important;
}

.accordion-button:not(.collapsed) {
  color: var(--text-white);
  background-color: var(--primary-color);
  box-shadow: none;
}

.accordion-button:focus {
  box-shadow: none;
  border-color: transparent;
}

.accordion-body {
  padding: 1.25rem;
  background-color: white;
}

.testimonials h3 {
  text-align: center;
  margin-bottom: var(--spacing-md);
  color: var(--primary-dark);
}

.testimonial-card {
  background-color: white;
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  box-shadow: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.testimonial-image {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
  box-shadow: 4px 4px 8px var(--shadow-dark), -4px -4px 8px var(--shadow-light);
}

.testimonial-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.testimonial-text {
  font-style: italic;
  margin-bottom: var(--spacing-sm);
  position: relative;
}

.testimonial-text::before {
  content: '"';
  font-size: 3rem;
  position: absolute;
  left: -10px;
  top: -20px;
  color: var(--primary-light);
  opacity: 0.3;
}

.testimonial-author {
  font-weight: 700;
  color: var(--primary-dark);
}

/* Press Section */
.press {
  background-color: white;
}

.press-mentions {
  margin-bottom: var(--spacing-lg);
}

.press-logo {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 80px;
  padding: var(--spacing-sm);
  opacity: 0.7;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.press-logo:hover {
  opacity: 1;
  transform: scale(1.05);
}

.press-logo img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}

.press-card {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-light);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
  height: 100%;
}

.press-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
}

.press-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.press-card:hover .press-image img {
  transform: scale(1.05);
}

.press-content {
  padding: var(--spacing-md);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.press-content h3 {
  font-size: 1.3rem;
  margin-bottom: var(--spacing-xs);
  color: var(--primary-dark);
}

.press-source {
  color: var(--text-light);
  font-style: italic;
  margin-bottom: var(--spacing-sm);
}

/* Events Section */
.events {
  background-color: #f5f5f5;
}

.event-card {
  background-color: white;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
  margin-bottom: var(--spacing-md);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.event-image {
  width: 100%;
  height: 300px;
  overflow: hidden;
}

.event-small .event-image {
  height: 200px;
}

.event-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.event-card:hover .event-image img {
  transform: scale(1.05);
}

.event-content {
  padding: var(--spacing-md);
  width: 100%;
  text-align: center;
}

.event-date {
  display: inline-block;
  background-color: var(--primary-color);
  color: var(--text-white);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  margin-bottom: var(--spacing-sm);
  font-size: 0.9rem;
}

.event-content h3 {
  font-size: 1.3rem;
  margin-bottom: var(--spacing-xs);
  color: var(--primary-dark);
}

.event-description {
  margin-bottom: var(--spacing-sm);
}

.event-details {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.detail-item {
  display: flex;
  align-items: center;
  gap: 5px;
}

.detail-icon {
  width: 20px;
  height: 20px;
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}

.detail-icon.location {
  background-image: url('image/icon-location.jpg');
}

.detail-icon.time {
  background-image: url('image/icon-clock.jpg');
}

.event-location {
  color: var(--text-light);
  margin-bottom: var(--spacing-sm);
}

/* FAQ Section */
.faq {
  background-color: white;
}

#faqAccordion .accordion-item {
  margin-bottom: var(--spacing-sm);
}

#faqAccordion .accordion-button {
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.1rem;
}

#faqAccordion .accordion-body {
  padding: 1.5rem;
}

/* Contact Section */
.contact {
  background-color: #f5f5f5;
}

.contact-info {
  padding: var(--spacing-sm);
}

.contact-item {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.contact-icon {
  width: 50px;
  height: 50px;
  margin-right: var(--spacing-sm);
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 4px 4px 8px var(--shadow-dark), -4px -4px 8px var(--shadow-light);
}

.contact-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contact-text h3 {
  font-size: 1.2rem;
  margin-bottom: 5px;
  color: var(--primary-dark);
}

.contact-map {
  margin-top: var(--spacing-md);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
  height: 250px;
}

.contact-map img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contact-form {
  background-color: white;
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  box-shadow: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
}

.form-group {
  margin-bottom: var(--spacing-sm);
}

.form-control {
  border: none;
  background-color: var(--bg-light);
  padding: 0.8rem;
  border-radius: var(--border-radius-sm);
  box-shadow: inset 2px 2px 5px var(--shadow-dark), inset -2px -2px 5px var(--shadow-light);
  transition: all var(--transition-normal);
}

.form-control:focus {
  outline: none;
  box-shadow: inset 3px 3px 6px var(--shadow-dark), inset -3px -3px 6px var(--shadow-light);
}

/* Footer */
.footer {
  background-color: var(--bg-dark);
  color: var(--text-white);
  padding: var(--spacing-lg) 0 var(--spacing-sm);
}

.footer h3, .footer h4 {
  color: var(--text-white);
  margin-bottom: var(--spacing-sm);
}

.footer-about p {
  color: #cccccc;
  margin-bottom: var(--spacing-sm);
}

.footer-links ul, .footer-legal ul, .footer-social ul {
  list-style: none;
  padding: 0;
}

.footer-links a, .footer-legal a, .footer-social a {
  color: #cccccc;
  display: block;
  padding: 5px 0;
  transition: color var(--transition-normal);
}

.footer-links a:hover, .footer-legal a:hover, .footer-social a:hover {
  color: var(--text-white);
  text-decoration: none;
}

.footer-social a {
  display: flex;
  align-items: center;
}

.footer-social a::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 20px;
  margin-right: 10px;
  background-position: center;
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.7;
  transition: opacity var(--transition-normal);
}

.footer-social a:hover::before {
  opacity: 1;
}

.footer-social a[href*="facebook"]::before {
  background-image: url('image/icon-facebook.jpg');
}

.footer-social a[href*="twitter"]::before,
.footer-social a[href*="x.com"]::before {
  background-image: url('image/icon-twitter.jpg');
}

.footer-social a[href*="instagram"]::before {
  background-image: url('image/icon-instagram.jpg');
}

.footer-social a[href*="linkedin"]::before {
  background-image: url('image/icon-linkedin.jpg');
}

.footer-social a[href*="youtube"]::before {
  background-image: url('image/icon-youtube.jpg');
}

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

/* Success Page */
.success-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--spacing-md);
}

.success-icon {
  width: 120px;
  height: 120px;
  background-color: var(--accent-color);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: var(--spacing-md);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.success-icon svg {
  width: 60px;
  height: 60px;
  fill: white;
}

.success-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-dark);
}

.success-message {
  font-size: 1.2rem;
  max-width: 600px;
  margin-bottom: var(--spacing-md);
}

/* Privacy & Terms Pages */
.content-page {
  padding-top: 100px;
  padding-bottom: var(--spacing-xl);
}

.content-page .container {
  background-color: white;
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  box-shadow: 8px 8px 16px var(--shadow-dark), -8px -8px 16px var(--shadow-light);
}

.content-page h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--primary-dark);
}

.content-page h2 {
  font-size: 1.8rem;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  color: var(--primary-color);
}

.content-page p, .content-page ul, .content-page ol {
  margin-bottom: var(--spacing-sm);
}

.content-page ul, .content-page ol {
  padding-left: var(--spacing-md);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 1s ease forwards;
}

/* Parallax Effect */
.parallax {
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

/* Media Queries */
@media (max-width: 992px) {
  .hero-title {
    font-size: 3rem;
  }
  
  .hero-subtitle {
    font-size: 1.3rem;
  }
  
  .method-card, .case-card, .event-card {
    margin-bottom: var(--spacing-md);
  }
  
  .community-image {
    margin-bottom: var(--spacing-md);
  }
}

@media (max-width: 768px) {
  .section-padding {
    padding: var(--spacing-lg) 0;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
  
  .contact-item {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .contact-icon {
    margin-bottom: var(--spacing-xs);
  }
  
  .event-details {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .case-results {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .accordion-button {
    font-size: 1rem;
    padding: 1rem;
  }
  
  .footer {
    text-align: center;
  }
  
  .footer-links, .footer-legal, .footer-social {
    margin-top: var(--spacing-md);
  }
}