/* === CSS Variables === */
:root {
  /* Tetrad Color Scheme */
  --primary: #ff6b6b;
  --primary-dark: #e55858;
  --secondary: #4ecdc4;
  --secondary-dark: #3db8b0;
  --tertiary: #ffd166;
  --tertiary-dark: #e6bc5c;
  --quaternary: #6b5eff;
  --quaternary-dark: #584ce6;
  
  /* Neutral Colors */
  --dark: #2d334a;
  --dark-soft: #3d4663;
  --gray: #8d97b5;
  --light-gray: #e9ecef;
  --white: #ffffff;
  
  /* Functional Colors */
  --text: #333333;
  --text-light: #666666;
  --text-white: #ffffff;
  --text-dark: #222222;
  --bg-light: #f8f9fa;
  --bg-dark: #343a40;
  --border: #dee2e6;
  --success: #28a745;
  --warning: #ffc107;
  --danger: #dc3545;
  
  /* Typography */
  --font-heading: 'Raleway', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 5rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 2rem;
  --radius-full: 50%;
  
  /* 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 12px 24px rgba(0, 0, 0, 0.15);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-very-slow: 0.8s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--text);
  line-height: 1.6;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  background-color: var(--bg-light);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-top: 0;
  margin-bottom: var(--space-md);
  color: var(--text-dark);
}

p {
  margin-top: 0;
  margin-bottom: var(--space-md);
}

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

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

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

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

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

.text-dark {
  color: var(--text-dark);
}

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

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

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

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

.mb-1 {
  margin-bottom: var(--space-xs);
}

.mb-2 {
  margin-bottom: var(--space-sm);
}

.mb-3 {
  margin-bottom: var(--space-md);
}

.mb-4 {
  margin-bottom: var(--space-lg);
}

.mb-5 {
  margin-bottom: var(--space-xl);
}

.mb-6 {
  margin-bottom: var(--space-xxl);
}

.mt-1 {
  margin-top: var(--space-xs);
}

.mt-2 {
  margin-top: var(--space-sm);
}

.mt-3 {
  margin-top: var(--space-md);
}

.mt-4 {
  margin-top: var(--space-lg);
}

.mt-5 {
  margin-top: var(--space-xl);
}

.mt-6 {
  margin-top: var(--space-xxl);
}

/* === Layout Components === */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-xxl) 0;
  position: relative;
}

/* === Header & Navigation === */
.header {
  width: 100%;
  z-index: 1000;
}

.navbar {
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-md);
  padding: var(--space-sm) 0;
  transition: all var(--transition-normal);
}

.navbar.is-fixed-top {
  position: fixed;
  top: 0;
  width: 100%;
}

.navbar-brand {
  display: flex;
  align-items: center;
}

.navbar-item {
  color: var(--text);
  font-weight: 600;
  padding: var(--space-sm) var(--space-md);
  transition: color var(--transition-fast);
}

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

.navbar-burger {
  cursor: pointer;
  display: block;
  height: 3.25rem;
  position: relative;
  width: 3.25rem;
  margin-left: auto;
}

.navbar-burger span {
  background-color: var(--text);
  display: block;
  height: 1px;
  left: calc(50% - 8px);
  position: absolute;
  transform-origin: center;
  transition: all var(--transition-fast);
  width: 16px;
}

.navbar-burger span:nth-child(1) {
  top: calc(50% - 6px);
}

.navbar-burger span:nth-child(2) {
  top: calc(50% - 1px);
}

.navbar-burger span:nth-child(3) {
  top: calc(50% + 4px);
}

.navbar-burger.is-active span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.navbar-burger.is-active span:nth-child(2) {
  opacity: 0;
}

.navbar-burger.is-active span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.navbar-menu {
  display: none;
}

.navbar-menu.is-active {
  display: block;
}

@media screen and (min-width: 1024px) {
  .navbar-burger {
    display: none;
  }
  
  .navbar-menu {
    display: flex;
    flex-grow: 1;
    flex-shrink: 0;
  }
  
  .navbar-start {
    justify-content: flex-start;
    margin-right: auto;
  }
  
  .navbar-end {
    justify-content: flex-end;
    margin-left: auto;
  }
}

/* === Hero Section === */
.hero {
  position: relative;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  color: var(--text-white);
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4));
  z-index: 1;
}

.hero-body {
  position: relative;
  z-index: 2;
  padding: var(--space-xxl) 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero .title,
.hero .subtitle,
.hero p {
  color: var(--white);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.hero .title {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.hero .subtitle {
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}

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

.scroll-down {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  color: var(--white);
  font-size: 1.5rem;
  transition: all var(--transition-normal);
}

.scroll-down:hover {
  transform: translateX(-50%) translateY(5px);
}

.bounce {
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

/* === Button Styles === */
.button {
  cursor: pointer;
  display: inline-block;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  padding: 0.5rem 1.5rem;
  text-align: center;
  text-decoration: none;
  transition: all var(--transition-normal);
  border: none;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.button:active {
  transform: translateY(1px);
}

.button.is-primary {
  background-color: var(--primary);
  color: var(--white);
}

.button.is-primary:hover {
  background-color: var(--primary-dark);
}

.button.is-light {
  background-color: var(--white);
  color: var(--text);
}

.button.is-light:hover {
  background-color: var(--light-gray);
}

.button.is-warning {
  background-color: var(--warning);
  color: var(--text-dark);
}

.button.is-warning:hover {
  background-color: var(--tertiary-dark);
}

.button.is-rounded {
  border-radius: 9999px;
}

.button.is-large {
  font-size: 1.25rem;
  padding: 0.75rem 2rem;
}

.button.is-medium {
  font-size: 1.125rem;
  padding: 0.625rem 1.75rem;
}

.button.is-outlined {
  background-color: transparent;
  border: 2px solid currentColor;
}

.button.is-primary.is-outlined {
  color: var(--primary);
}

.button.is-primary.is-outlined:hover {
  background-color: var(--primary);
  color: var(--white);
}

.button.is-fullwidth {
  width: 100%;
  display: block;
}

.pulse-button {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 107, 107, 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(255, 107, 107, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(255, 107, 107, 0);
  }
}

/* === Services Section === */
.services-section {
  background-color: var(--bg-light);
}

.service-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-lg);
}

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

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

.image-container {
  height: 240px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

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

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

.progress-container {
  margin-top: auto;
}

.progress {
  height: 0.5rem;
  border-radius: var(--radius-full);
  background-color: var(--light-gray);
  overflow: hidden;
  margin-top: var(--space-xs);
}

.progress::-webkit-progress-bar {
  background-color: var(--light-gray);
}

.progress::-webkit-progress-value {
  background-color: var(--primary);
  transition: width var(--transition-slow);
}

.progress::-moz-progress-bar {
  background-color: var(--primary);
}

/* === Instructors Section === */
.instructors-section {
  position: relative;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--text-white);
}

.instructors-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4));
}

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

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

.instructor-card:hover {
  transform: translateY(-10px);
}

.instructor-card .image-container {
  height: 300px;
}

.social-links {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--light-gray);
  color: var(--text);
  transition: all var(--transition-normal);
}

.social-links a:hover {
  background-color: var(--primary);
  color: var(--white);
  transform: translateY(-3px);
}

/* === Projects Section === */
.projects-section {
  background-color: var(--bg-light);
}

.project-card {
  height: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  margin-bottom: var(--space-lg);
}

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

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tag.is-primary {
  background-color: var(--primary);
  color: var(--white);
}

.tag.is-info {
  background-color: var(--secondary);
  color: var(--white);
}

.tag.is-success {
  background-color: var(--tertiary);
  color: var(--text-dark);
}

/* === Insights Section === */
.insights-section {
  position: relative;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--text-white);
}

.insights-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4));
}

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

.insight-card {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-normal);
  height: 100%;
}

.insight-card:hover {
  transform: translateY(-10px);
  background-color: rgba(255, 255, 255, 0.2);
}

.insight-icon {
  color: var(--tertiary);
  margin-bottom: var(--space-md);
}

.insight-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: var(--space-sm);
}

.insight-text {
  font-size: 1rem;
}

/* === Resources Section === */
.resources-section {
  background-color: var(--white);
}

.resource-card {
  height: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 1px solid var(--border);
  margin-bottom: var(--space-lg);
}

.resource-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.resource-card .card-content {
  padding: var(--space-lg);
}

.resource-card a {
  color: var(--quaternary);
  transition: color var(--transition-fast);
}

.resource-card a:hover {
  color: var(--quaternary-dark);
  text-decoration: underline;
}

.resource-meta {
  display: flex;
  gap: var(--space-md);
  color: var(--gray);
  font-size: 0.875rem;
  margin-top: var(--space-md);
}

.resource-meta span {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

/* === News Section === */
.news-section {
  position: relative;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

.news-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4));
}

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

.news-card {
  height: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background-color: var(--white);
  transition: all var(--transition-normal);
}

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

.news-date {
  font-size: 0.875rem;
  color: var(--gray);
  margin-bottom: var(--space-sm);
}

.news-card .button {
  margin-top: var(--space-md);
}

/* === Sustainability Section === */
.sustainability-section {
  background-color: var(--bg-light);
  overflow: hidden;
}

.sustainability-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.sustainability-image img {
  width: 100%;
  height: auto;
  transition: transform var(--transition-slow);
}

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

.sustainability-content {
  padding: var(--space-lg);
}

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

.principle-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.principle-icon {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background-color: var(--quaternary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

/* === Contact Section === */
.contact-section {
  position: relative;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  color: var(--text-white);
}

.contact-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4));
}

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

.contact-info-container {
  padding: var(--space-lg);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.contact-info-item .icon {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background-color: var(--tertiary);
  color: var(--text-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.contact-form-container {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

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

.label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.control {
  position: relative;
  width: 100%;
}

.input,
.textarea,
.select select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  background-color: rgba(255, 255, 255, 0.8);
  transition: all var(--transition-normal);
}

.input:focus,
.textarea:focus,
.select select:focus {
  outline: none;
  border-color: var(--tertiary);
  box-shadow: 0 0 0 3px rgba(255, 209, 102, 0.3);
}

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

.select {
  position: relative;
  width: 100%;
}

.select::after {
  content: "▼";
  position: absolute;
  top: 50%;
  right: 1rem;
  transform: translateY(-50%);
  pointer-events: none;
  font-size: 0.75rem;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.checkbox input {
  margin: 0;
}

/* === Portfolio Section === */
.portfolio-section {
  background-color: var(--white);
  overflow: hidden;
}

.portfolio-carousel {
  position: relative;
  margin-top: var(--space-lg);
}

.portfolio-carousel-container {
  display: flex;
  transition: transform var(--transition-slow);
}

.portfolio-item {
  flex: 0 0 100%;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.portfolio-item img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.portfolio-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: var(--space-lg);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  color: var(--white);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-normal);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
  transform: translateY(0);
}

.portfolio-controls {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.portfolio-controls button {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background-color: var(--primary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.portfolio-controls button:hover {
  background-color: var(--primary-dark);
  transform: scale(1.1);
}

/* === Footer === */
.footer {
  background-color: var(--dark);
  color: var(--light-gray);
  padding: var(--space-xxl) 0 var(--space-lg);
}

.footer .title {
  color: var(--white);
  margin-bottom: var(--space-md);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.footer-links a {
  color: var(--light-gray);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--tertiary);
}

.footer .social-links {
  margin-top: var(--space-md);
}

.footer .social-links a {
  color: var(--light-gray);
  text-decoration: underline;
  font-weight: 600;
  margin-right: var(--space-md);
  transition: color var(--transition-normal);
  background: none;
  width: auto;
  height: auto;
  display: inline;
}

.footer .social-links a:hover {
  color: var(--tertiary);
  transform: none;
}

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

.has-addons {
  display: flex;
}

.control.is-expanded {
  flex-grow: 1;
  flex-shrink: 1;
}

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

/* === Other Pages === */
.page-content {
  padding-top: 100px;
  min-height: 80vh;
  padding-bottom: var(--space-xxl);
}

.success-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 100vh;
  padding: var(--space-xxl) var(--space-md);
}

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

/* === Media Queries === */
@media screen and (max-width: 768px) {
  .hero .title {
    font-size: 2rem;
  }
  
  .hero .subtitle {
    font-size: 1.25rem;
  }
  
  .insight-number {
    font-size: 2rem;
  }
  
  .contact-info-container {
    margin-bottom: var(--space-xl);
  }
  
  .portfolio-item {
    height: 300px;
  }
  
  .portfolio-overlay {
    padding: var(--space-md);
  }
}

@media screen and (min-width: 769px) and (max-width: 1023px) {
  .hero .title {
    font-size: 2.5rem;
  }
}

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

[data-aos="fade-up"] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

[data-aos="fade-right"] {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

[data-aos="fade-left"] {
  opacity: 0;
  transform: translateX(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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