/* =================== Core Variables & Reset =================== */
:root {
  /* Primary Colors */
  --primary-dark: #0a1d37;
  --primary: #1a3b7c;
  --primary-light: #3658a7;
  
  /* Secondary Colors */
  --secondary-dark: #7a3170;
  --secondary: #9b4b8f;
  --secondary-light: #c174b5;
  
  /* Accent Colors */
  --accent-1: #00b8d4;
  --accent-2: #7c4dff;
  --accent-3: #ff5252;
  
  /* Neutral Colors */
  --dark: #111927;
  --gray-dark: #2d3748;
  --gray: #4a5568;
  --gray-light: #a0aec0;
  --light: #f7fafc;
  --white: #ffffff;
  
  /* Gradient Colors */
  --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--accent-1) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--secondary) 0%, var(--accent-2) 100%);
  --gradient-accent: linear-gradient(135deg, var(--accent-2) 0%, var(--accent-3) 100%);
  --gradient-dark: linear-gradient(135deg, var(--dark) 0%, var(--primary-dark) 100%);
  --gradient-light: linear-gradient(135deg, var(--light) 0%, var(--white) 100%);
  
  /* Overlay Colors */
  --overlay-dark: rgba(10, 29, 55, 0.7);
  --overlay-light: rgba(247, 250, 252, 0.7);
  
  /* Shadow */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --space-xxl: 8rem;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  
  /* Transitions */
  --transition-fast: 0.2s;
  --transition-normal: 0.3s;
  --transition-slow: 0.5s;
  
  /* Container Max Width */
  --container-width: 1200px;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: 'Roboto', sans-serif;
  font-weight: 700;
  line-height: 1.3;
  color: var(--primary-dark);
  margin-bottom: var(--space-md);
}

h1 {
  font-size: var(--text-5xl);
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: var(--text-4xl);
}

h3 {
  font-size: var(--text-2xl);
}

h4 {
  font-size: var(--text-xl);
}

p {
  margin-bottom: var(--space-md);
}

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

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

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

ul, ol {
  list-style-position: inside;
}

/* =================== Utility Classes =================== */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-xl);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  margin: var(--space-sm) auto 0;
  border-radius: var(--radius-full);
}

.section-description {
  text-align: center;
  max-width: 800px;
  margin: -var(--space-lg) auto var(--space-xl);
  color: var(--gray);
  font-size: var(--text-lg);
}

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

.text-right {
  text-align: right;
}

.mb-sm {
  margin-bottom: var(--space-sm);
}

.mb-md {
  margin-bottom: var(--space-md);
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

.mb-xl {
  margin-bottom: var(--space-xl);
}

.mt-sm {
  margin-top: var(--space-sm);
}

.mt-md {
  margin-top: var(--space-md);
}

.mt-lg {
  margin-top: var(--space-lg);
}

.mt-xl {
  margin-top: var(--space-xl);
}

/* =================== Button Styles =================== */
.btn, 
button:not(.menu-toggle), 
input[type='submit'] {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  font-size: var(--text-base);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before,
button:not(.menu-toggle)::before,
input[type='submit']::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(-100%);
  transition: transform var(--transition-normal);
  z-index: -1;
}

.btn:hover::before,
button:not(.menu-toggle):hover::before,
input[type='submit']:hover::before {
  transform: translateX(0);
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--primary);
  color: var(--white);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--gradient-secondary);
  color: var(--white);
}

.btn-secondary:hover {
  background: var(--secondary);
  color: var(--white);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  background: var(--primary);
  color: var(--white);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.btn-link {
  background: none;
  box-shadow: none;
  color: var(--primary);
  padding: 0;
  border-bottom: 2px solid var(--primary);
  border-radius: 0;
  text-transform: none;
}

.btn-link:hover {
  color: var(--primary-light);
  border-color: var(--primary-light);
  transform: none;
}

/* =================== Form Styles =================== */
.form-group {
  margin-bottom: var(--space-lg);
}

label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 600;
  color: var(--gray-dark);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 2px solid var(--gray-light);
  border-radius: var(--radius-md);
  background-color: var(--white);
  font-family: 'Lato', sans-serif;
  font-size: var(--text-base);
  color: var(--gray-dark);
  transition: all var(--transition-fast);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(26, 59, 124, 0.2);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

::placeholder {
  color: var(--gray-light);
}

/* =================== Header & Navigation =================== */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: var(--space-md) 0;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.main-header.scrolled {
  padding: var(--space-sm) 0;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-lg);
}

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

.logo {
  z-index: 1001;
}

.logo img {
  height: 60px;
  width: auto;
  transition: all var(--transition-normal);
}

.main-header.scrolled .logo img {
  height: 50px;
}

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

.nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li {
  margin-left: var(--space-lg);
}

.nav-links a {
  font-weight: 600;
  color: var(--primary-dark);
  position: relative;
  padding-bottom: var(--space-xs);
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-normal);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

/* =================== Hero Section =================== */
.hero-section {
  position: relative;
  width: 100%;
  padding: 0;
  overflow: hidden;
  margin-top: 0;
}

.hero-background {
  position: relative;
  width: 100%;
  min-height: 100vh;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
}

.hero-background::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(10, 29, 55, 0.8), rgba(10, 29, 55, 0.4));
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 650px;
  padding: var(--space-xl) 0;
}

.hero-content h1 {
  color: var(--white);
  margin-bottom: var(--space-lg);
  font-size: clamp(var(--text-4xl), 5vw, var(--text-5xl));
  line-height: 1.2;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
  color: var(--white);
  font-size: var(--text-xl);
  margin-bottom: var(--space-xl);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  opacity: 0.9;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
}

/* =================== Features Section =================== */
.features-section {
  padding: var(--space-xxl) 0;
  background-color: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.feature-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-xl);
  background-color: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 120px;
  height: 120px;
  margin-bottom: var(--space-lg);
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.feature-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-full);
}

.feature-card h3 {
  color: var(--primary-dark);
  margin-bottom: var(--space-md);
}

.feature-card p {
  color: var(--gray);
}

/* =================== Methodology Section =================== */
.methodology-section {
  padding: var(--space-xxl) 0;
  background: var(--gradient-light);
  position: relative;
  overflow: hidden;
}

.methodology-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('image/methodology-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.05;
  z-index: 0;
}

.methodology-timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  padding: var(--space-xl) 0;
}

.methodology-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-xl);
  width: 100%;
}

.timeline-item:nth-child(even) {
  margin-left: auto;
}

.timeline-content {
  position: relative;
  width: calc(50% - var(--space-xl));
  padding: var(--space-lg);
  background-color: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-normal);
}

.timeline-item:nth-child(odd) .timeline-content {
  margin-right: auto;
}

.timeline-item:nth-child(even) .timeline-content {
  margin-left: auto;
}

.timeline-content::before {
  content: '';
  position: absolute;
  top: 50%;
  width: var(--space-xl);
  height: 4px;
  background: var(--gradient-primary);
}

.timeline-item:nth-child(odd) .timeline-content::before {
  right: -var(--space-xl);
}

.timeline-item:nth-child(even) .timeline-content::before {
  left: -var(--space-xl);
}

.timeline-icon {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  z-index: 1;
}

.timeline-item:nth-child(odd) .timeline-icon {
  right: calc(50% - 40px);
}

.timeline-item:nth-child(even) .timeline-icon {
  left: calc(50% - 40px);
}

.timeline-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-full);
}

.timeline-content h3 {
  margin-bottom: var(--space-sm);
  color: var(--primary);
}

/* =================== Portfolio Section =================== */
.portfolio-section {
  padding: var(--space-xxl) 0;
  background-color: var(--white);
}

.portfolio-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.filter-btn {
  padding: 0.5rem 1.5rem;
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-normal);
}

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

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-xl);
}

.portfolio-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-normal);
}

.portfolio-item:hover {
  transform: translateY(-10px);
}

.portfolio-item .card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background-color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.portfolio-item .card-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
}

.portfolio-item .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.portfolio-item .card-content {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.portfolio-item .card-content h3 {
  color: var(--primary);
  margin-bottom: var(--space-sm);
}

.portfolio-stats {
  display: flex;
  justify-content: space-between;
  margin: var(--space-md) 0;
  padding: var(--space-sm) 0;
  border-top: 1px solid var(--gray-light);
  border-bottom: 1px solid var(--gray-light);
  font-weight: 600;
}

.portfolio-stats span {
  color: var(--primary);
}

/* =================== Statistics Section =================== */
.statistics-section {
  padding: var(--space-xxl) 0;
  background: var(--gradient-dark);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.statistics-section .section-title,
.statistics-section .section-description {
  color: var(--white);
}

.statistics-section .section-title::after {
  background: var(--gradient-accent);
}

.statistics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.statistic-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.statistic-card:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.15);
}

.statistic-icon {
  width: 100px;
  height: 100px;
  margin-bottom: var(--space-md);
  border-radius: var(--radius-full);
  overflow: hidden;
  background: var(--white);
  display: flex;
  justify-content: center;
  align-items: center;
}

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

.statistic-card h3 {
  color: var(--white);
  margin-bottom: var(--space-sm);
}

.statistic-value {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--accent-1);
  margin-bottom: var(--space-md);
  font-family: 'Roboto', sans-serif;
}

.statistic-card p {
  color: rgba(255, 255, 255, 0.8);
}

/* =================== Research Section =================== */
.research-section {
  padding: var(--space-xxl) 0;
  background-color: var(--white);
}

.research-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.research-item {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-normal);
}

.research-item:hover {
  transform: translateY(-5px);
}

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

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

.research-item:hover .research-image img {
  transform: scale(1.05);
}

.research-content {
  padding: var(--space-xl);
}

.research-content h3 {
  color: var(--primary);
  margin-bottom: var(--space-md);
}

.research-content p {
  margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
  .research-item {
    flex-direction: row;
    align-items: stretch;
  }
  
  .research-image {
    width: 40%;
    height: auto;
  }
  
  .research-content {
    width: 60%;
  }
}

/* =================== Resources Section =================== */
.resources-section {
  padding: var(--space-xxl) 0;
  background: var(--gradient-light);
  position: relative;
  overflow: hidden;
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.resource-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.resource-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

.resource-icon {
  width: 120px;
  height: 120px;
  margin-bottom: var(--space-lg);
  border-radius: var(--radius-full);
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--gradient-primary);
}

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

.resource-card h3 {
  color: var(--primary);
  margin-bottom: var(--space-sm);
}

.resource-card p {
  margin-bottom: var(--space-lg);
  flex-grow: 1;
}

/* =================== Testimonials Section =================== */
.testimonials-section {
  padding: var(--space-xxl) 0;
  background-color: var(--white);
  position: relative;
  overflow: hidden;
}

.testimonials-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('image/testimonials-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.05;
  z-index: 0;
}

.testimonials-slider {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
  justify-content: center;
}

.testimonial-item {
  flex: 1;
  min-width: 300px;
  max-width: 400px;
}

.testimonial-content {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-lg);
  position: relative;
  transition: transform var(--transition-normal);
}

.testimonial-content:hover {
  transform: translateY(-10px);
}

.testimonial-quote {
  position: relative;
  padding-top: var(--space-lg);
}

.quote-icon {
  position: absolute;
  top: 0;
  left: 0;
  font-size: var(--text-3xl);
  color: var(--primary-light);
  opacity: 0.2;
}

.testimonial-author {
  display: flex;
  align-items: center;
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--gray-light);
}

.testimonial-author img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  object-fit: cover;
  margin-right: var(--space-md);
  border: 3px solid var(--primary-light);
}

.author-info h4 {
  margin-bottom: var(--space-xs);
  color: var(--primary);
}

.author-info p {
  color: var(--gray);
  margin-bottom: 0;
}

/* =================== History Section =================== */
.history-section {
  padding: var(--space-xxl) 0;
  background: var(--gradient-light);
  position: relative;
  overflow: hidden;
}

.history-timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  padding: var(--space-xl) 0;
}

.timeline-event {
  display: flex;
  margin-bottom: var(--space-xl);
  position: relative;
}

.timeline-event:last-child {
  margin-bottom: 0;
}

.timeline-year {
  flex: 0 0 120px;
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--primary);
  padding-top: var(--space-md);
  text-align: right;
  padding-right: var(--space-xl);
  position: relative;
}

.timeline-year::after {
  content: '';
  position: absolute;
  top: var(--space-lg);
  right: 0;
  width: 16px;
  height: 16px;
  background: var(--primary);
  border-radius: var(--radius-full);
  box-shadow: 0 0 0 4px rgba(26, 59, 124, 0.2);
}

.timeline-content {
  flex: 1;
  padding-left: var(--space-xl);
  border-left: 2px solid var(--primary-light);
  padding-bottom: var(--space-xl);
}

.timeline-content h3 {
  color: var(--primary);
  margin-bottom: var(--space-sm);
}

.timeline-content p {
  margin-bottom: var(--space-lg);
}

.timeline-content img {
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 300px;
  height: auto;
  object-fit: cover;
  box-shadow: var(--shadow-md);
}

/* =================== Contact Section =================== */
.contact-section {
  padding: var(--space-xxl) 0;
  background-color: var(--white);
}

.contact-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
}

.contact-info {
  flex: 1;
  min-width: 300px;
}

.info-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--space-xl);
}

.info-icon {
  flex: 0 0 60px;
  height: 60px;
  margin-right: var(--space-lg);
  border-radius: var(--radius-full);
  overflow: hidden;
  background: var(--gradient-primary);
}

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

.info-content h3 {
  margin-bottom: var(--space-xs);
  color: var(--primary);
}

.info-content p {
  color: var(--gray);
  margin-bottom: 0;
}

.contact-form-container {
  flex: 1;
  min-width: 300px;
}

.contact-form {
  background: var(--white);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* =================== Footer =================== */
.main-footer {
  padding: var(--space-xl) 0 var(--space-lg);
  background: var(--gradient-dark);
  color: var(--white);
}

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

.footer-about img {
  height: 60px;
  width: auto;
  margin-bottom: var(--space-md);
}

.footer-about p {
  color: rgba(255, 255, 255, 0.7);
}

.footer-links h3,
.footer-legal h3,
.footer-social h3 {
  color: var(--white);
  margin-bottom: var(--space-md);
  position: relative;
  padding-bottom: var(--space-sm);
}

.footer-links h3::after,
.footer-legal h3::after,
.footer-social h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
}

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

.footer-links li,
.footer-legal li,
.footer-social li {
  margin-bottom: var(--space-sm);
}

.footer-links a,
.footer-legal a,
.footer-social a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
  position: relative;
  padding-left: var(--space-md);
}

.footer-links a::before,
.footer-legal a::before,
.footer-social a::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent-1);
  font-size: var(--text-xl);
  line-height: 1;
  transition: transform var(--transition-fast);
}

.footer-links a:hover,
.footer-legal a:hover,
.footer-social a:hover {
  color: var(--white);
}

.footer-links a:hover::before,
.footer-legal a:hover::before,
.footer-social a:hover::before {
  transform: translateX(3px);
}

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

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: var(--space-sm);
}

/* =================== Cookie Popup =================== */
.cookie-popup {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(10, 29, 55, 0.9);
  backdrop-filter: blur(10px);
  color: var(--white);
  padding: var(--space-lg);
  z-index: 9999;
  box-shadow: var(--shadow-lg);
}

.cookie-content {
  max-width: var(--container-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.cookie-content p {
  margin: 0;
  flex-grow: 1;
}

.cookie-button {
  background: var(--accent-1);
  color: var(--white);
  border: none;
  padding: 0.5rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.cookie-button:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

/* =================== Success Page =================== */
.success-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--gradient-light);
  padding: var(--space-xl);
  text-align: center;
}

.success-content {
  max-width: 600px;
  background: var(--white);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.success-icon {
  font-size: 5rem;
  color: var(--accent-1);
  margin-bottom: var(--space-lg);
}

.success-content h1 {
  color: var(--primary);
  margin-bottom: var(--space-md);
}

.success-content p {
  margin-bottom: var(--space-lg);
}

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

.content-page .container {
  max-width: 800px;
}

.content-page h1 {
  margin-bottom: var(--space-xl);
  color: var(--primary-dark);
}

.content-page h2 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  color: var(--primary);
}

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

/* =================== Media Queries =================== */
@media (max-width: 1024px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.75rem;
    --text-2xl: 1.5rem;
  }

  .hero-content {
    max-width: 550px;
  }
  
  .timeline-year {
    flex: 0 0 80px;
    font-size: var(--text-xl);
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: right var(--transition-normal);
    z-index: 1000;
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .nav-links li {
    margin: var(--space-md) 0;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .timeline-item {
    margin-bottom: var(--space-xl);
  }
  
  .timeline-content {
    width: 100%;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }
  
  .timeline-content::before {
    display: none;
  }
  
  .timeline-icon {
    display: none;
  }
  
  .methodology-timeline::before {
    left: 0;
    transform: none;
  }
  
  .timeline-event {
    flex-direction: column;
  }
  
  .timeline-year {
    text-align: left;
    padding-right: 0;
    padding-left: var(--space-xl);
    margin-bottom: var(--space-sm);
  }
  
  .timeline-year::after {
    left: 0;
    right: auto;
  }
  
  .cookie-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 576px) {
  :root {
    --space-xxl: 4rem;
    --space-xl: 3rem;
    --space-lg: 1.5rem;
  }
  
  .section-title {
    margin-bottom: var(--space-lg);
  }
  
  .section-description {
    margin-bottom: var(--space-lg);
  }
  
  .feature-card,
  .statistic-card,
  .resource-card {
    padding: var(--space-lg);
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .research-item {
    flex-direction: column;
  }
  
  .research-image,
  .research-content {
    width: 100%;
  }
  
  .testimonial-item {
    min-width: 100%;
  }
  
  .info-item {
    flex-direction: column;
  }
  
  .info-icon {
    margin-bottom: var(--space-sm);
    margin-right: 0;
  }
}