/* Global Styles & CSS Variables */
:root {
  --font-primary: 'Playfair Display', serif;
  --font-secondary: 'Source Sans Pro', sans-serif;

  /* Split-Complementary Color Scheme */
  --color-primary: #005A9C; /* French Blue */
  --color-primary-dark: #003E6B;
  --color-accent1: #FFA726; /* Orange */
  --color-accent2: #FF7043; /* Coral */

  --color-text-light: #FFFFFF;
  --color-text-dark: #121212;
  --color-text-medium: #333333;
  --color-text-subtle: #555555;

  --color-bg-page: #F0F2F5; /* Light overall page background */
  --color-bg-section-primary: #FFFFFF; /* For default sections */
  --color-bg-section-secondary: #F8F9FA; /* For alternating light sections */
  --color-bg-section-dark: #1E2A38; /* Example for a dark section, if any */

  --color-glass-bg: rgba(30, 42, 56, 0.6); /* Darker glass for light text */
  --color-glass-bg-light-elements: rgba(255, 255, 255, 0.65); /* Lighter glass for dark text, on light bgs */
  --color-glass-border: rgba(255, 255, 255, 0.15);
  --color-glass-border-on-light: rgba(200, 200, 200, 0.5);


  --color-neo-border: #000000;
  --shadow-neo-light: 2px 2px 0 var(--color-neo-border);
  --shadow-neo-medium: 4px 4px 0 var(--color-neo-border);
  --shadow-card-soft: 0 6px 20px rgba(0, 0, 0, 0.08);

  --border-radius-soft: 8px;
  --border-radius-sharp: 3px;

  --spacing-unit: 1rem;
  --transition-main: all 0.3s ease-in-out;

  --header-height: 80px;
}

/* Basic Reset & Body */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-secondary);
  line-height: 1.7;
  color: var(--color-text-medium);
  background-color: var(--color-bg-page);
  overflow-x: hidden; /* Prevent horizontal scroll */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Page container for potential max-width or centering page content */
.page-container {
  max-width: 100%; /* Or a specific max width like 1920px */
  margin: 0 auto;
  position: relative; /* For particle canvas positioning */
  overflow: hidden; /* If particles are strictly within this */
}

/* Particle Canvas Styling */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1; /* Behind all content */
  background-color: var(--color-bg-section-dark); /* Dark background for particles to show */
}


/* Container */
.container {
  width: 90%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-unit);
  padding-right: var(--spacing-unit);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  color: var(--color-text-dark);
  margin-bottom: calc(var(--spacing-unit) * 0.75);
  line-height: 1.3;
  font-weight: 700;
}

h1 { font-size: 2.8rem; font-weight: 900; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.6rem; }
h4 { font-size: 1.3rem; }

p {
  margin-bottom: var(--spacing-unit);
  color: var(--color-text-subtle);
}

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

a:hover {
  color: var(--color-accent1);
  text-decoration: underline;
}

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

/* Sections general styling */
.section-padding {
  padding-top: calc(var(--spacing-unit) * 4);
  padding-bottom: calc(var(--spacing-unit) * 4);
  background-color: var(--color-bg-section-primary);
}

.section-padding-light-bg,
.section-padding-extra-light-bg { /* Consolidating these for now */
  padding-top: calc(var(--spacing-unit) * 4);
  padding-bottom: calc(var(--spacing-unit) * 4);
  background-color: var(--color-bg-section-secondary);
}

.section-title {
  text-align: center;
  margin-bottom: calc(var(--spacing-unit) * 3);
  color: var(--color-text-dark); /* Ensure high contrast */
  position: relative;
}
.section-title::after { /* Subtle underline accent */
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--color-accent1);
    margin: 0.5rem auto 0;
}


.section-subtitle {
  text-align: center;
  font-size: 1.1rem;
  color: var(--color-text-subtle);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: calc(var(--spacing-unit) * 2.5);
}

/* Header & Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  height: var(--header-height);
  background: var(--color-glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-glass-border);
  transition: var(--transition-main);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo {
  font-family: var(--font-primary);
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--color-text-light);
  text-decoration: none;
}

.logo .logo-accent {
  color: var(--color-accent1);
}

.main-navigation .nav-list {
  list-style: none;
  display: flex;
}

.main-navigation .nav-list li {
  margin-left: calc(var(--spacing-unit) * 1.5);
}

.main-navigation .nav-list a {
  color: var(--color-text-light);
  text-decoration: none;
  font-weight: 600;
  padding: 0.5rem 0;
  position: relative;
}
.main-navigation .nav-list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent1);
    transition: width var(--transition-speed) var(--transition-ease);
}

.main-navigation .nav-list a:hover::after,
.main-navigation .nav-list a.active::after {
  width: 100%;
}
.main-navigation .nav-list a:hover {
    color: var(--color-accent1);
    text-decoration: none;
}


.menu-toggle {
  display: none; /* Hidden on desktop */
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--color-text-light);
  position: relative;
  transition: var(--transition-main);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--color-text-light);
  transition: var(--transition-main);
}

.hamburger::before { top: -8px; }
.hamburger::after { bottom: -8px; }


/* Main Content Area (for pages with fixed header) */
main {
  padding-top: var(--header-height); /* Push content below fixed header */
}

/* General page content wrapper for specific pages (privacy, terms, about, etc) */
.main-page-content {
    padding-top: calc(var(--header-height) + var(--spacing-unit) * 2); /* Extra padding for title */
    padding-bottom: calc(var(--spacing-unit) * 3);
    min-height: calc(100vh - var(--header-height) - var(--footer-height, 200px)); /* Ensure it takes up space */
    background-color: var(--color-bg-section-primary);
}

.main-page-content h1 {
    margin-bottom: var(--spacing-unit) * 1.5;
}

/* Hero Section */
#hero {
  position: relative;
  color: var(--color-text-light);
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--header-height));
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.4));
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero-title {
  font-size: 3.5rem; /* Responsive font size */
  font-weight: 900;
  margin-bottom: var(--spacing-unit);
  color: var(--color-text-light); /* Explicitly white */
  text-shadow: 2px 2px 8px rgba(0,0,0,0.7);
}

.hero-subtitle {
  font-size: 1.3rem;
  margin-bottom: calc(var(--spacing-unit) * 2);
  color: var(--color-text-light); /* Explicitly white */
  opacity: 0.9;
  text-shadow: 1px 1px 4px rgba(0,0,0,0.6);
}

/* Global Button Styles */
.btn, button, input[type="submit"], input[type="button"] {
  display: inline-block;
  font-family: var(--font-secondary);
  font-weight: 700;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  background-color: transparent;
  border: 2px solid var(--color-neo-border);
  padding: calc(var(--spacing-unit) * 0.75) calc(var(--spacing-unit) * 1.8));
  font-size: 1rem;
  border-radius: var(--border-radius-sharp);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.15s ease-in-out;
  box-shadow: var(--shadow-neo-light);
  text-decoration: none;
}

.btn:hover, button:hover, input[type="submit"]:hover, input[type="button"]:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-neo-medium);
  text-decoration: none;
}

.btn:active, button:active, input[type="submit"]:active, input[type="button"]:active {
  transform: translate(0px, 0px);
  box-shadow: var(--shadow-neo-light);
}

.btn-primary {
  background-color: var(--color-accent1);
  color: var(--color-text-dark);
  border-color: var(--color-neo-border); /* or var(--color-accent1-dark) */
}
.btn-primary:hover {
  background-color: var(--color-accent2); /* Using the other accent for hover */
}

.btn-secondary {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  border-color: var(--color-neo-border);
}
.btn-secondary:hover {
  background-color: var(--color-primary-dark);
}

.btn-hero {
  font-size: 1.1rem;
  padding: calc(var(--spacing-unit) * 1) calc(var(--spacing-unit) * 2.5);
  background-color: var(--color-accent1);
  color: var(--color-text-dark);
}
.btn-hero:hover {
  background-color: var(--color-accent2);
  color: var(--color-text-dark);
}


/* Card Styles (Global) */
.card {
  background: var(--color-glass-bg-light-elements);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--color-glass-border-on-light);
  border-radius: var(--border-radius-soft);
  padding: calc(var(--spacing-unit) * 1.5);
  box-shadow: var(--shadow-card-soft);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden; /* Ensures content respects border radius */
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.12);
}

.card-image {
  width: 100%; /* Ensure it takes full width of card padding */
  height: 200px; /* Fixed height for consistency */
  margin-bottom: var(--spacing-unit);
  overflow: hidden; /* Crucial for object-fit */
  border-radius: calc(var(--border-radius-soft) - 4px); /* Slightly less than card */
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* Crop image to fit container */
  transition: transform 0.4s ease;
}
.card:hover .card-image img {
    transform: scale(1.05);
}

.card-content {
  width: 100%;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: calc(var(--spacing-unit) * 0.5);
  color: var(--color-text-dark);
}

.card p {
  font-size: 0.95rem;
  color: var(--color-text-subtle);
}


/* Features Section */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: calc(var(--spacing-unit) * 2);
}
.feature-card .card-title {
    color: var(--color-primary);
}

/* Innovation Section */
.innovation-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: calc(var(--spacing-unit) * 2.5);
}
.innovation-text {
  flex: 1;
  min-width: 300px;
}
.innovation-image-container {
  flex: 1;
  min-width: 300px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.innovation-image-container img {
  border-radius: var(--border-radius-soft);
  box-shadow: var(--shadow-neo-medium);
  border: 2px solid var(--color-neo-border);
}

/* Toggle Switch */
.toggle-container {
    margin-top: calc(var(--spacing-unit) * 1.5);
    padding: var(--spacing-unit);
    background: rgba(0,0,0,0.03);
    border-radius: var(--border-radius-soft);
}
.toggle-title {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-unit);
    color: var(--color-text-dark);
}
.toggle-switch-wrapper {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-unit);
}
.switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 28px;
  margin-right: var(--spacing-unit);
}
.switch input { display: none; }
.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: .4s;
  border-radius: 28px;
}
.slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}
input:checked + .slider {
  background-color: var(--color-accent1);
}
input:checked + .slider:before {
  transform: translateX(22px);
}
.toggle-label {
    font-size: 0.95rem;
    color: var(--color-text-subtle);
}
.toggle-content {
    padding: var(--spacing-unit);
    border: 1px solid var(--color-glass-border-on-light);
    border-radius: var(--border-radius-soft);
    background: var(--color-bg-section-primary);
}
.toggle-content p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* Instructors Section */
.instructors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: calc(var(--spacing-unit) * 2);
}
.instructor-card .card-image img {
  border-radius: 50%; /* Circular images for instructors */
  width: 150px; /* Fixed size for avatar consistency */
  height: 150px;
  object-fit: cover;
  margin: 0 auto; /* Center the smaller image within card-image div */
  border: 3px solid var(--color-accent1);
}
.instructor-card .card-image { /* Override default card-image height */
    height: auto; /* Let the 150px image define it */
    margin-bottom: var(--spacing-unit);
}

.instructor-role {
  font-style: italic;
  color: var(--color-primary);
  margin-bottom: calc(var(--spacing-unit) * 0.5);
  font-weight: 600;
}

/* Portfolio Section */
.portfolio-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: calc(var(--spacing-unit) * 2);
}
.portfolio-item .card-image {
    height: 220px; /* Specific height for portfolio items */
}


/* External Resources Section */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: calc(var(--spacing-unit) * 1.5);
}
.resource-card {
    background: var(--color-glass-bg-light-elements);
    padding: var(--spacing-unit);
    border-radius: var(--border-radius-soft);
    border: 1px solid var(--color-glass-border-on-light);
    box-shadow: var(--shadow-card-soft);
    transition: var(--transition-main);
}
.resource-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
}
.resource-card .resource-title {
    font-size: 1.1rem;
    margin-bottom: calc(var(--spacing-unit) * 0.5);
}
.resource-card .resource-title a {
    color: var(--color-primary);
    font-weight: 600;
}
.resource-card .resource-title a:hover {
    color: var(--color-accent1);
}
.resource-card .resource-description {
    font-size: 0.9rem;
    color: var(--color-text-subtle);
    margin-bottom: 0;
}

/* Testimonials Section */
.testimonials-slider { /* Basic structure, JS will handle actual sliding */
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: calc(var(--spacing-unit) * 2);
  /* For a real slider, you'd have overflow-x: hidden on a parent and use JS */
}
.testimonial-card .testimonial-author-image img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto var(--spacing-unit);
  border: 2px solid var(--color-accent2);
}
.testimonial-card .card-image { /* Override */
    height: auto;
    margin-bottom: 0; /* Image is part of content flow */
}
.testimonial-quote {
  font-style: italic;
  margin-bottom: var(--spacing-unit);
  color: var(--color-text-medium);
  position: relative;
  padding-left: 20px;
}
.testimonial-quote::before {
    content: '\201C'; /* Left double quote */
    font-family: Georgia, serif;
    font-size: 2.5rem;
    color: var(--color-accent1);
    position: absolute;
    left: -10px;
    top: -10px;
}
.testimonial-author {
  font-weight: 600;
  color: var(--color-primary);
  margin-top: var(--spacing-unit);
}

/* News Section */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: calc(var(--spacing-unit) * 2);
}
.news-item .card-image {
    height: 200px;
}
.news-date {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-subtle);
  margin-bottom: calc(var(--spacing-unit) * 0.5);
}
.read-more {
  display: inline-block;
  margin-top: var(--spacing-unit);
  color: var(--color-accent2);
  font-weight: 600;
  text-decoration: none;
}
.read-more:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* FAQ Section */
.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  margin-bottom: var(--spacing-unit);
  border: 1px solid var(--color-glass-border-on-light);
  border-radius: var(--border-radius-soft);
  background: var(--color-glass-bg-light-elements);
  overflow: hidden;
}
.faq-question {
  background: transparent;
  width: 100%;
  border: none;
  text-align: left;
  padding: var(--spacing-unit);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-icon {
  font-size: 1.5rem;
  transition: transform 0.3s ease;
  color: var(--color-primary);
}
.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  padding: 0 var(--spacing-unit) var(--spacing-unit);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-answer p {
    font-size: 0.95rem;
    margin-bottom: 0;
}
.faq-question[aria-expanded="true"] + .faq-answer {
  max-height: 300px; /* Adjust as needed */
  padding: var(--spacing-unit);
}


/* Contact Section */
.contact-form {
  max-width: 700px;
  margin: 0 auto;
  padding: calc(var(--spacing-unit) * 2);
  border-radius: var(--border-radius-soft);
  /* Glassmorphic form */
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.2); /* Soft shadow */
}
/* On dark backgrounds (if section is dark) */
/* #contact.section-padding-dark .contact-form {
    background: rgba(0,0,0,0.2);
    border-color: rgba(255,255,255,0.1);
} */
/* #contact.section-padding .contact-form { background-color: var(--color-bg-section-secondary); } */


.form-group {
  margin-bottom: calc(var(--spacing-unit) * 1.25);
}
.form-group label {
  display: block;
  margin-bottom: calc(var(--spacing-unit) * 0.4);
  font-weight: 600;
  color: var(--color-text-dark); /* Or light if form is on dark bg */
}
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
  width: 100%;
  padding: calc(var(--spacing-unit) * 0.7);
  border-radius: var(--border-radius-sharp);
  font-family: var(--font-secondary);
  font-size: 1rem;
  color: var(--color-text-dark); /* Or light text if on dark bg */
  /* Glassmorphic inputs */
  background: rgba(255, 255, 255, 0.5); /* Lighter for better readability on light section bg */
  border: 1px solid var(--color-glass-border-on-light);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.contact-form input[type="text"]:focus,
.contact-form input[type="email"]:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-accent1);
  box-shadow: 0 0 0 2px rgba(var(--color-accent1-rgb, 255, 167, 38), 0.3); /* Create --color-accent1-rgb if needed */
}
.contact-form textarea {
  min-height: 120px;
  resize: vertical;
}
.contact-form .btn-submit {
  width: 100%;
  padding: calc(var(--spacing-unit) * 0.9) 0;
  font-size: 1.1rem;
}

/* Footer */
.site-footer {
  background-color: var(--color-bg-section-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: calc(var(--spacing-unit) * 3) 0 calc(var(--spacing-unit) * 1.5);
  font-size: 0.9rem;
}
.footer-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: calc(var(--spacing-unit) * 2);
}
.footer-column {
  flex: 1;
  min-width: 250px; /* Ensure columns don't get too squished */
}
.footer-heading {
  font-family: var(--font-primary);
  color: var(--color-text-light);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-unit);
  font-weight: 700;
}
.footer-column p {
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: calc(var(--spacing-unit) * 0.5);
}
.footer-links ul, .social-links-text {
  list-style: none;
}
.footer-links li, .social-links-text li {
  margin-bottom: calc(var(--spacing-unit) * 0.5);
}
.footer-links a, .social-links-text a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
}
.footer-links a:hover, .social-links-text a:hover {
  color: var(--color-accent1);
  text-decoration: underline;
}
.footer-bottom {
  text-align: center;
  padding-top: calc(var(--spacing-unit) * 2);
  margin-top: calc(var(--spacing-unit) * 1.5);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}


/* Success Page Specific Styling */
body.page-success {
  display: flex;
  flex-direction: column; /* Allow header/footer if they are part of success page structure */
  min-height: 100vh;
  background-color: var(--color-bg-page); /* Or a specific success page background */
}
body.page-success .main-page-content { /* If using the main wrapper */
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--header-height); /* If header is present */
}
.success-message-container {
    background: var(--color-bg-section-primary);
    padding: calc(var(--spacing-unit) * 3);
    border-radius: var(--border-radius-soft);
    box-shadow: var(--shadow-card-soft);
    max-width: 500px;
}
.success-message-container h1 {
    color: var(--color-primary);
    font-size: 2rem;
}
.success-message-container p {
    font-size: 1.1rem;
    margin-bottom: calc(var(--spacing-unit) * 1.5);
}
.success-message-container .btn {
    margin-top: var(--spacing-unit);
}


/* Responsive Adjustments */
@media (max-width: 992px) {
  h1 { font-size: 2.4rem; }
  .hero-title { font-size: 2.8rem; }
  h2 { font-size: 1.9rem; }
}

@media (max-width: 768px) {
  .header-container {
    padding-left: var(--spacing-unit);
    padding-right: var(--spacing-unit);
  }
  .main-navigation .nav-list {
    display: none; /* Hidden by default on mobile */
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: var(--color-glass-bg); /* Same as header */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    flex-direction: column;
    padding: var(--spacing-unit) 0;
    border-top: 1px solid var(--color-glass-border);
    box-shadow: 0 5px 10px rgba(0,0,0,0.1);
  }
  .main-navigation .nav-list.active {
    display: flex;
  }
  .main-navigation .nav-list li {
    margin-left: 0;
    text-align: center;
  }
  .main-navigation .nav-list a {
    padding: var(--spacing-unit);
    display: block;
    width: 100%;
  }
  .menu-toggle {
    display: block; /* Show burger menu */
  }
  .menu-toggle.active .hamburger {
    background-color: transparent; /* Hide middle line */
  }
  .menu-toggle.active .hamburger::before {
    transform: translateY(8px) rotate(45deg);
  }
  .menu-toggle.active .hamburger::after {
    transform: translateY(-8px) rotate(-45deg);
  }

  .hero-title { font-size: 2.2rem; }
  .hero-subtitle { font-size: 1.1rem; }

  .features-grid,
  .instructors-grid,
  .portfolio-gallery,
  .news-grid,
  .resources-grid,
  .testimonials-slider {
    grid-template-columns: 1fr; /* Stack cards on mobile */
  }

  .innovation-content {
    flex-direction: column;
  }
  .footer-container {
    flex-direction: column;
    text-align: center;
  }
  .footer-column {
    min-width: 100%; /* Full width on mobile */
    margin-bottom: var(--spacing-unit);
  }
}

@media (max-width: 480px) {
  h1 { font-size: 2rem; }
  .hero-title { font-size: 1.8rem; }
  h2 { font-size: 1.6rem; }
  .btn, button, input[type="submit"], input[type="button"] {
    padding: calc(var(--spacing-unit) * 0.6) calc(var(--spacing-unit) * 1.2);
    font-size: 0.9rem;
  }
  .btn-hero {
    font-size: 1rem;
    padding: calc(var(--spacing-unit) * 0.8) calc(var(--spacing-unit) * 2);
  }
}

/* Cookie Consent Popup */
#cookieConsentPopup {
    /* HTML already has display: none and other inline styles */
    /* JavaScript will handle display block/none */
    /* Consider adding transition for smoother appearance if desired via CSS classes */
    box-shadow: 0 -2px 10px rgba(0,0,0,0.2);
}
.menu-toggle{
  display: none;
}
/* Ensure text on images has sufficient contrast (already handled in Hero via overlay) */
/* If other sections use text on images, apply similar overlay techniques */