/* ========= Variables ========= */
:root {
  /* Color Scheme - Analogous */
  --primary-color: #1e90ff;
  --primary-dark: #0066cc;
  --primary-light: #66b3ff;
  --secondary-color: #ff6b1e;
  --secondary-dark: #cc4400;
  --secondary-light: #ff9966;
  --accent-color: #1eff8d;
  --accent-dark: #00cc66;
  --accent-light: #66ffb3;
  
  /* Grayscale */
  --white: #ffffff;
  --light-gray: #f8f9fa;
  --medium-gray: #e9ecef;
  --dark-gray: #343a40;
  --black: #212529;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
  --gradient-accent: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
  
  /* Typography */
  --font-heading: 'Inter', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  
  /* Spacing */
  --section-padding: 5rem 0;
  --card-padding: 1.5rem;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Border Radius */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
}

/* ========= Base Styles ========= */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--black);
  line-height: 1.6;
  overflow-x: hidden;
}

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

p {
  margin-bottom: 1rem;
}

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

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

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

/* ========= Utility Classes ========= */
.section-padding {
  padding: 5rem 0;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  position: relative;
  color: var(--black);
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--dark-gray);
  margin-bottom: 2rem;
}

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

.bg-light {
  background-color: var(--light-gray);
}

.bg-dark {
  background-color: var(--dark-gray);
}

.text-white {
  color: var(--white) !important;
}

/* ========= Header & Navigation ========= */
header {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-medium);
}

header.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar-brand img {
  height: 50px;
  width: auto;
}

.navbar-nav .nav-link {
  color: var(--black);
  font-weight: 500;
  padding: 0.5rem 1rem;
  transition: color var(--transition-fast);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--primary-color);
}

/* ========= 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: 0.5rem 1rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

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

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

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--white);
}

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

.btn-secondary:hover {
  background-color: var(--secondary-dark);
  border-color: var(--secondary-dark);
  color: var(--white);
}

.btn-outline-light {
  color: var(--white);
  border-color: var(--white);
}

.btn-outline-light:hover {
  background-color: var(--white);
  color: var(--primary-color);
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1.125rem;
}

.animated-btn {
  position: relative;
  overflow: hidden;
  transform: translateZ(0);
}

.animated-btn:after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 300%;
  height: 300%;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  opacity: 0;
  transition: transform 0.6s, opacity 0.6s;
}

.animated-btn:hover:after {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}

/* ========= Hero Section ========= */
.hero-section {
  height: 100vh;
  min-height: 600px;
  position: relative;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  text-align: left;
  color: var(--white);
  margin-top: 70px;
}

.hero-content {
  max-width: 650px;
  padding: 2rem;
  position: relative;
  z-index: 2;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  animation: fadeInUp 1s ease-out;
}

.hero-content h2 {
  font-size: 2rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  animation: fadeInUp 1s ease-out 0.2s;
  animation-fill-mode: both;
}

.hero-content p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease-out 0.4s;
  animation-fill-mode: both;
}

.hero-content .btn {
  animation: fadeInUp 1s ease-out 0.6s;
  animation-fill-mode: both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========= Services Section ========= */
.service-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  border: none;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  box-shadow: var(--shadow-sm);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.card-image {
  overflow: hidden;
  text-align: center;
}

.card-image img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 1.5rem;
  color: var(--black);
  margin-bottom: 1rem;
}

.card-text {
  color: var(--dark-gray);
  margin-bottom: 1.5rem;
}

/* ========= Team Section ========= */
.team-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border: none;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  box-shadow: var(--shadow-sm);
}

.team-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.team-card .card-image {
  width: 100%;
  overflow: hidden;
}

.team-card .card-image img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.team-position {
  color: var(--primary-color);
  font-weight: 500;
  margin-bottom: 1rem;
}

/* ========= History Section ========= */
.history-image-container {
  overflow: hidden;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
}

.history-image-container img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.history-image-container:hover img {
  transform: scale(1.05);
}

.history-content h3 {
  color: var(--primary-color);
}

/* ========= Partners Section ========= */
.partner-logo-container {
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-medium);
}

.partner-logo-container:hover {
  transform: translateY(-5px);
}

.partner-logo-container img {
  max-height: 80px;
  max-width: 100%;
  object-fit: contain;
}

/* ========= Resources Section ========= */
.resource-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  border: none;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  box-shadow: var(--shadow-sm);
}

.resource-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.resource-description {
  font-size: 0.875rem;
  color: var(--dark-gray);
  font-style: italic;
}

/* ========= Sustainability Section ========= */
.sustainability-image-container {
  overflow: hidden;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
}

.sustainability-image-container img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.sustainability-image-container:hover img {
  transform: scale(1.05);
}

.sustainability-content h3 {
  color: var(--accent-dark);
}

/* ========= Media Section ========= */
.media-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  border: none;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  box-shadow: var(--shadow-sm);
}

.media-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.media-card .card-image {
  overflow: hidden;
}

.media-card .card-image img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.date-published {
  font-size: 0.875rem;
  color: var(--dark-gray);
  margin-bottom: 1rem;
}

/* ========= Research Section ========= */
.research-image-container {
  overflow: hidden;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
}

.research-image-container img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.research-content h3 {
  color: var(--primary-color);
}

/* ========= Insights Section ========= */
.insight-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  border: none;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  box-shadow: var(--shadow-sm);
}

.insight-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.insight-card .card-image {
  overflow: hidden;
}

.insight-card .card-image img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

/* ========= Contact Section ========= */
.contact-info {
  height: 100%;
}

.contact-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 50%;
  font-size: 1.25rem;
}

.map-container {
  height: 250px;
  overflow: hidden;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  border: 1px solid var(--medium-gray);
  padding: 0.75rem;
  border-radius: var(--border-radius-sm);
  transition: border-color var(--transition-fast);
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(30, 144, 255, 0.25);
}

.contact-form label {
  font-weight: 500;
  margin-bottom: 0.5rem;
}

/* ========= Footer ========= */
.footer {
  background-color: var(--dark-gray);
  color: var(--white);
}

.footer-logo {
  height: 50px;
  width: auto;
  margin-bottom: 1.5rem;
}

.footer h4 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--white);
}

.footer ul {
  padding-left: 0;
  list-style: none;
}

.footer a {
  color: var(--white);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.social-links a {
  display: inline-block;
  margin-right: 1rem;
  transition: color var(--transition-fast);
}

.social-links a:hover {
  color: var(--primary-light) !important;
}

/* ========= Success Page ========= */
.success-page {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  min-height: 100vh;
  padding: 2rem;
}

.success-icon {
  font-size: 5rem;
  color: var(--accent-dark);
  margin-bottom: 2rem;
}

.success-page h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.success-page p {
  font-size: 1.25rem;
  max-width: 600px;
  margin-bottom: 2rem;
}

/* ========= Privacy & Terms Pages ========= */
.page-content {
  padding-top: 100px;
  padding-bottom: 3rem;
}

.page-content h1 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
}

.page-content h2 {
  font-size: 1.75rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.page-content p {
  margin-bottom: 1.5rem;
}

/* ========= Cookie Consent ========= */
#cookieConsent {
  background-color: rgba(33, 37, 41, 0.9);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  margin: 1rem;
}

#acceptCookies {
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  padding: 0.5rem 1.5rem;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

#acceptCookies:hover {
  background-color: var(--primary-dark);
}

/* ========= Responsive Adjustments ========= */
@media (max-width: 991.98px) {
  .hero-section {
    height: auto;
    min-height: 500px;
  }
  
  .hero-content {
    text-align: center;
    margin: 0 auto;
  }
  
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .hero-content h2 {
    font-size: 1.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .contact-info, .contact-form {
    margin-bottom: 2rem;
  }
}

@media (max-width: 767.98px) {
  .section-padding {
    padding: 3rem 0;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .hero-content h2 {
    font-size: 1.25rem;
  }
  
  .hero-content p {
    font-size: 1rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .section-subtitle {
    font-size: 1.1rem;
  }
  
  .card-title {
    font-size: 1.25rem;
  }
}

/* ========= Animation Utilities ========= */
[data-aos] {
  opacity: 0;
  transition-property: opacity, transform;
  transition-duration: 0.8s;
}

[data-aos="fade-up"] {
  transform: translateY(30px);
}

[data-aos="fade-down"] {
  transform: translateY(-30px);
}

[data-aos="fade-left"] {
  transform: translateX(30px);
}

[data-aos="fade-right"] {
  transform: translateX(-30px);
}

[data-aos="zoom-in"] {
  transform: scale(0.9);
}

[data-aos].aos-animate {
  opacity: 1;
  transform: translateX(0) translateY(0) scale(1);
}

/* Scroll-based animation */
.parallax {
  transition: transform 0.5s cubic-bezier(0.215, 0.61, 0.355, 1);
}

/* Read more links */
.read-more {
  display: inline-block;
  color: var(--primary-color);
  font-weight: 500;
  text-decoration: none;
  position: relative;
  padding-right: 1.5rem;
}

.read-more:after {
  content: "→";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  transition: transform var(--transition-fast);
}

.read-more:hover {
  color: var(--primary-dark);
}

.read-more:hover:after {
  transform: translate(5px, -50%);
}