/* Root variables for consistent theme */
:root {
  /* Primary Colors */
  --primary-100: #e0f7fa;
  --primary-200: #b2ebf2;
  --primary-300: #80deea;
  --primary-400: #4dd0e1;
  --primary-500: #26c6da;
  --primary-600: #00bcd4;
  --primary-700: #00acc1;
  --primary-800: #0097a7;
  --primary-900: #00838f;
  
  /* Secondary Colors */
  --secondary-100: #f3e5f5;
  --secondary-200: #e1bee7;
  --secondary-300: #ce93d8;
  --secondary-400: #ba68c8;
  --secondary-500: #ab47bc;
  --secondary-600: #9c27b0;
  --secondary-700: #8e24aa;
  --secondary-800: #7b1fa2;
  --secondary-900: #6a1b9a;
  
  /* Accent Colors */
  --accent-100: #fff8e1;
  --accent-200: #ffecb3;
  --accent-300: #ffe082;
  --accent-400: #ffd54f;
  --accent-500: #ffca28;
  --accent-600: #ffc107;
  --accent-700: #ffb300;
  --accent-800: #ffa000;
  --accent-900: #ff8f00;
  
  /* Neutrals */
  --neutral-100: #f5f5f5;
  --neutral-200: #eeeeee;
  --neutral-300: #e0e0e0;
  --neutral-400: #bdbdbd;
  --neutral-500: #9e9e9e;
  --neutral-600: #757575;
  --neutral-700: #616161;
  --neutral-800: #424242;
  --neutral-900: #212121;
  
  /* Font weights */
  --font-light: 300;
  --font-regular: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  
  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* 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, 0.1);
  --shadow-xl: 0 16px 24px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

body {
  font-family: 'Nunito', sans-serif;
  color: var(--neutral-800);
  background-color: var(--neutral-100);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Oswald', sans-serif;
  font-weight: var(--font-semibold);
  color: var(--neutral-900);
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1.5rem;
}

a {
  color: var(--primary-700);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-900);
  text-decoration: none;
}

img {
  max-width: 100%;
}

/* Header and Navigation */
.header {
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-md);
  padding: 15px 0;
  z-index: 1000;
  transition: all var(--transition-medium);
}

.header.scrolled {
  padding: 10px 0;
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-lg);
}

.navbar-brand {
  font-family: 'Oswald', sans-serif;
  font-weight: var(--font-bold);
  font-size: 1.8rem;
  color: var(--primary-700);
}

.navbar-nav .nav-link {
  font-family: 'Nunito', sans-serif;
  font-weight: var(--font-medium);
  color: var(--neutral-700);
  padding: 0.5rem 1rem;
  transition: color var(--transition-fast);
  position: relative;
}

.navbar-nav .nav-link:hover {
  color: var(--primary-700);
}

.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--primary-700);
  transition: all var(--transition-medium);
  transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after {
  width: 50%;
}

/* Buttons */
.btn {
  font-family: 'Nunito', sans-serif;
  font-weight: var(--font-medium);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-medium);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.5s, height 0.5s;
  z-index: -1;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: linear-gradient(45deg, var(--primary-700), var(--primary-600));
  color: white;
  box-shadow: 0 4px 12px rgba(0, 172, 193, 0.2);
}

.btn-primary:hover, .btn-primary:focus {
  background: linear-gradient(45deg, var(--primary-800), var(--primary-700));
  color: white;
  box-shadow: 0 6px 16px rgba(0, 172, 193, 0.3);
  transform: translateY(-2px);
}

.btn-outline-light {
  color: white;
  border: 2px solid white;
  background: transparent;
}

.btn-outline-light:hover, .btn-outline-light:focus {
  background-color: white;
  color: var(--primary-700);
  transform: translateY(-2px);
}

.btn-outline-primary {
  color: var(--primary-700);
  border: 2px solid var(--primary-700);
  background: transparent;
}

.btn-outline-primary:hover, .btn-outline-primary:focus {
  background-color: var(--primary-700);
  color: white;
  transform: translateY(-2px);
}

/* Hero Section */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  color: white;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.5) 100%);
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: var(--font-bold);
  margin-bottom: 1.5rem;
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p.lead {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* Methodology Section */
.methodology {
  padding: 6rem 0;
}

.methodology .card {
  height: 100%;
  border: none;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  display: flex;
  flex-direction: column;
}

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

.methodology .card-image {
  width: 100%;
  height: 220px;
  overflow: hidden;
}

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

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

.methodology .card-body {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.methodology .card-body h3 {
  font-family: 'Oswald', sans-serif;
  font-weight: var(--font-semibold);
  color: var(--primary-700);
  margin-bottom: 1rem;
}

/* Portfolio Section */
.portfolio {
  padding: 6rem 0;
  background-color: var(--neutral-200);
}

.portfolio .card {
  height: 100%;
  border: none;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  display: flex;
  flex-direction: column;
}

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

.portfolio .card-image {
  width: 100%;
  height: 220px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

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

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

.portfolio .card-body {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.portfolio .card-body h3 {
  font-family: 'Oswald', sans-serif;
  font-weight: var(--font-semibold);
  color: var(--primary-700);
  margin-bottom: 1rem;
}

.portfolio .badge {
  font-size: 0.8rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  background-color: var(--primary-700);
  color: white;
}

/* Research Section */
.research {
  padding: 6rem 0;
}

.research .card {
  height: 100%;
  border: none;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  display: flex;
  flex-direction: column;
}

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

.research .card-image {
  width: 100%;
  height: 300px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

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

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

.research .card-body {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.research .card-body h3 {
  font-family: 'Oswald', sans-serif;
  font-weight: var(--font-semibold);
  color: var(--primary-700);
  margin-bottom: 1rem;
}

/* External Resources Section */
.external-resources {
  padding: 6rem 0;
  background-color: var(--neutral-200);
}

.external-resources .card {
  height: 100%;
  border: none;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

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

.external-resources .card-body {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.external-resources .card-body h3 {
  font-family: 'Oswald', sans-serif;
  font-weight: var(--font-semibold);
  color: var(--primary-700);
  margin-bottom: 1rem;
}

/* Awards Section */
.awards {
  padding: 6rem 0;
}

.awards .card {
  height: 100%;
  border: none;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

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

.awards .card-image {
  width: 100%;
  height: 220px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

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

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

.awards .card-body {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.awards .card-body h3 {
  font-family: 'Oswald', sans-serif;
  font-weight: var(--font-semibold);
  color: var(--primary-700);
  margin-bottom: 1rem;
}

/* Accolades Section */
.accolades {
  padding: 6rem 0;
  background-color: var(--neutral-200);
}

.accolades .card {
  height: 100%;
  border: none;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  display: flex;
  flex-direction: column;
}

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

.accolades .card-body {
  padding: 2rem;
  flex-grow: 1;
}

.accolades .card-image img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--primary-700);
}

.accolades .card-body h3 {
  font-family: 'Oswald', sans-serif;
  font-weight: var(--font-semibold);
  color: var(--primary-700);
  margin-bottom: 0.25rem;
}

/* Workshops Section */
.workshops {
  padding: 6rem 0;
}

.workshops .card {
  height: 100%;
  border: none;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  display: flex;
  flex-direction: column;
}

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

.workshops .card-image {
  width: 100%;
  height: 220px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

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

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

.workshops .card-body {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.workshops .card-body h3 {
  font-family: 'Oswald', sans-serif;
  font-weight: var(--font-semibold);
  color: var(--primary-700);
  margin-bottom: 1rem;
}

/* Events Calendar Section */
.events-calendar {
  padding: 6rem 0;
  background-color: var(--neutral-200);
}

.events-calendar .card {
  height: 100%;
  border: none;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  display: flex;
  flex-direction: column;
}

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

.events-calendar .card-image {
  width: 100%;
  height: 220px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

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

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

.events-calendar .card-body {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.events-calendar .card-body h3 {
  font-family: 'Oswald', sans-serif;
  font-weight: var(--font-semibold);
  color: var(--primary-700);
  margin-bottom: 1rem;
}

.events-calendar .small {
  color: var(--neutral-600);
}

/* Contact Section */
.contact {
  padding: 6rem 0;
}

.contact-info {
  margin-bottom: 2rem;
}

.contact-info h3 {
  font-family: 'Oswald', sans-serif;
  font-weight: var(--font-semibold);
  color: var(--primary-700);
  margin-bottom: 1.5rem;
}

.contact-info p {
  margin-bottom: 0.5rem;
  color: var(--neutral-700);
}

.contact .card {
  border: none;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.contact .form-control, .contact .form-select {
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.contact .form-control:focus, .contact .form-select:focus {
  border-color: var(--primary-700);
  box-shadow: 0 0 0 0.25rem rgba(0, 172, 193, 0.15);
}

.social-link {
  color: var(--primary-700);
  text-decoration: none;
  transition: color var(--transition-fast);
  font-weight: var(--font-medium);
}

.social-link:hover {
  color: var(--primary-900);
  text-decoration: underline;
}

/* Footer */
.footer {
  background-color: var(--neutral-900);
  color: white;
  padding: 5rem 0 3rem;
}

.footer h3 {
  font-family: 'Oswald', sans-serif;
  font-weight: var(--font-semibold);
  color: white;
  margin-bottom: 1.5rem;
}

.footer p {
  color: var(--neutral-400);
}

.footer ul {
  margin: 0;
  padding: 0;
}

.footer ul li {
  margin-bottom: 0.5rem;
}

.footer a {
  color: var(--neutral-400);
  transition: color var(--transition-fast);
}

.footer a:hover {
  color: white;
}

/* Additional Pages */
.success-page {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 2rem;
}

.success-page .card {
  max-width: 600px;
  border: none;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  padding: 3rem;
}

.privacy-page, .terms-page {
  padding-top: 100px;
  padding-bottom: 5rem;
}

.privacy-page h1, .terms-page h1 {
  font-family: 'Oswald', sans-serif;
  font-weight: var(--font-bold);
  color: var(--primary-700);
  margin-bottom: 2rem;
}

/* Media Queries */
@media (max-width: 991.98px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero p.lead {
    font-size: 1.1rem;
  }
  
  .card-image {
    height: 200px !important;
  }
}

@media (max-width: 767.98px) {
  .hero {
    min-height: 500px;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p.lead {
    font-size: 1rem;
  }
  
  section {
    padding: 4rem 0 !important;
  }
  
  .card-image {
    height: 180px !important;
  }
}

@media (max-width: 575.98px) {
  .hero {
    min-height: 450px;
  }
  
  .hero h1 {
    font-size: 1.8rem;
  }
  
  .hero p.lead {
    font-size: 0.9rem;
  }
  
  section {
    padding: 3rem 0 !important;
  }
  
  .display-4, .display-5 {
    font-size: calc(1.3rem + 1.5vw);
  }
  
  .lead {
    font-size: 1rem;
  }
  
  .card-body {
    padding: 1.5rem !important;
  }
}

/* Animation Utilities */
[data-aos] {
  opacity: 0;
  transition-property: opacity, transform;
  &.aos-animate {
    opacity: 1;
  }
}

[data-aos="fade-up"] {
  transform: translateY(50px);
  &.aos-animate {
    transform: translateY(0);
  }
}

[data-aos="fade-down"] {
  transform: translateY(-50px);
  &.aos-animate {
    transform: translateY(0);
  }
}

[data-aos="fade-right"] {
  transform: translateX(-50px);
  &.aos-animate {
    transform: translateX(0);
  }
}

[data-aos="fade-left"] {
  transform: translateX(50px);
  &.aos-animate {
    transform: translateX(0);
  }
}

/* Custom animations */
@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
  100% {
    transform: translateY(0px);
  }
}

.float-animation {
  animation: float 6s ease-in-out infinite;
}

html,body{
  overflow-x: hidden;
}