/* ===== CSS Variables (Design System) ===== */
:root {
  /* Typography */
  --font-heading: 'Oswald', sans-serif;
  --font-body: 'Nunito', sans-serif;
  
  /* Bright Color Palette */
  --primary-color: #ff6b35;
  --primary-dark: #e55a2b;
  --primary-light: #ff8f6b;
  --secondary-color: #4ecdc4;
  --secondary-dark: #3ba89f;
  --secondary-light: #7dd8d3;
  --accent-color: #ffe66d;
  --accent-dark: #e6d060;
  --accent-light: #fff394;
  
  /* Additional Brand Colors */
  --success-color: #2ecc71;
  --warning-color: #f39c12;
  --danger-color: #e74c3c;
  --info-color: #3498db;
  
  /* Neutral Colors */
  --dark-color: #2c3e50;
  --light-color: #ecf0f1;
  --white-color: #ffffff;
  --gray-color: #95a5a6;
  --gray-dark: #7f8c8d;
  --gray-light: #bdc3c7;
  
  /* Gradient Backgrounds */
  --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
  --gradient-accent: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-color) 100%);
  --gradient-dark: linear-gradient(135deg, var(--dark-color) 0%, #34495e 100%);
  
  /* Shadows for 3D Effects */
  --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.15);
  --shadow-heavy: 0 8px 30px rgba(0, 0, 0, 0.25);
  --shadow-3d: 0 10px 40px rgba(0, 0, 0, 0.3), 0 2px 10px rgba(0, 0, 0, 0.2);
  
  /* Glass Morphism */
  --glass-bg: rgba(255, 255, 255, 0.25);
  --glass-border: rgba(255, 255, 255, 0.18);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  
  /* Transitions */
  --transition-fast: 0.2s ease-out;
  --transition-medium: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
}

/* ===== Base Styles ===== */
* {
  box-sizing: border-box;
}

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

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

/* ===== Adaptive Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--dark-color);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h5 { font-size: clamp(1.1rem, 2vw, 1.5rem); }
h6 { font-size: clamp(1rem, 1.5vw, 1.25rem); }

p {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
}

/* ===== Global Button Styles ===== */
.btn,
button,
.button,
input[type='submit'],
input[type='button'] {
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: none;
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-xl);
  cursor: pointer;
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
  background: var(--gradient-primary);
  color: var(--white-color);
  box-shadow: var(--shadow-medium);
  transform: translateY(0);
}

.btn::before,
button::before,
.button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left var(--transition-medium);
}

.btn:hover,
button:hover,
.button:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-3d);
  background: var(--gradient-secondary);
}

.btn:hover::before,
button:hover::before,
.button:hover::before {
  left: 100%;
}

.btn:active,
button:active,
.button:active {
  transform: translateY(-1px);
  box-shadow: var(--shadow-medium);
}

/* Button Variants */
.btn.is-secondary,
.button.is-secondary {
  background: var(--gradient-secondary);
}

.btn.is-outlined,
.button.is-outlined {
  background: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

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

.custom-button {
  position: relative;
  z-index: 1;
}

/* ===== Navigation Styles ===== */
.navbar {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-light);
  transition: all var(--transition-medium);
}

.navbar.is-scrolled {
  background: rgba(44, 62, 80, 0.95);
}

.navbar-brand .title {
  font-family: var(--font-heading);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0;
}

.navbar-item {
  font-family: var(--font-heading);
  font-weight: 500;
  color: var(--dark-color);
  transition: all var(--transition-fast);
  position: relative;
}

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

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

.navbar-item:hover::after {
  width: 100%;
}

/* ===== Hero Section ===== */
.hero.parallax-bg {
  position: relative;
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero.parallax-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.3) 0%, rgba(78, 205, 196, 0.3) 100%);
  z-index: 1;
}

.hero-body {
  position: relative;
  z-index: 2;
  padding: var(--spacing-xxl) 0;
}

.hero .title {
  color: var(--white-color) !important;
  text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
  margin-bottom: var(--spacing-lg);
}

.hero .subtitle {
  color: var(--white-color) !important;
  text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.5);
  margin-bottom: var(--spacing-xl);
  font-weight: 400;
}

/* Hero Animations */
.animate-hero {
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeIn 1s ease-out forwards;
}

.animate-hero:nth-child(2) { animation-delay: 0.3s; }
.animate-hero:nth-child(3) { animation-delay: 0.6s; }

@keyframes heroFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Section Styles ===== */
.section {
  padding: var(--spacing-xxl) 0;
  position: relative;
}

.section:nth-child(even) {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

/* ===== Mission Section ===== */
#mission {
  background: var(--gradient-accent);
  color: var(--dark-color);
}

#mission .title {
  color: var(--dark-color);
  margin-bottom: var(--spacing-lg);
}

#mission .content {
  font-size: 1.2em;
  line-height: 1.8;
  text-align: center;
}

/* ===== Card Styles with 3D Effects ===== */
.card {
  background: var(--white-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-light);
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform var(--transition-medium);
}

.card:hover {
  transform: translateY(-10px) rotateX(2deg);
  box-shadow: var(--shadow-3d);
}

.card:hover::before {
  transform: scaleX(1);
}

.card-image {
  width: 100%;
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.image-container {
  width: 100%;
  height: 250px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--light-color);
}

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

.card:hover .image-container img {
  transform: scale(1.1);
}

.card-content {
  padding: var(--spacing-lg);
  text-align: center;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.card-content .title {
  margin-bottom: var(--spacing-md);
  color: var(--dark-color);
}

/* ===== Instructors Section ===== */
#instructors .card {
  text-align: center;
}

#instructors .image-container {
  height: 300px;
  border-radius: 50%;
  width: 200px;
  height: 200px;
  margin: 0 auto var(--spacing-lg);
}

#instructors .image-container img {
  border-radius: 50%;
}

/* ===== Gallery Slider ===== */
.gallery-slider {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-heavy);
}

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

.slide {
  min-width: 100%;
  position: relative;
}

.slide img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.slider-controls {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  padding: 0 var(--spacing-md);
  pointer-events: none;
}

.slider-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  color: var(--white-color);
  font-size: 1.5rem;
  cursor: pointer;
  transition: all var(--transition-medium);
  pointer-events: all;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slider-btn:hover {
  background: var(--primary-color);
  transform: scale(1.1);
}

/* ===== Events Calendar ===== */
#events .card {
  background: var(--gradient-secondary);
  color: var(--white-color);
}

#events .card .title {
  color: var(--white-color);
}

#events .card-content {
  background: transparent;
}

/* ===== Success Stories ===== */
#success-stories .card {
  background: var(--gradient-primary);
  color: var(--white-color);
}

#success-stories .card .title {
  color: var(--white-color);
}

#success-stories .image-container {
  height: 300px;
}

/* ===== Reviews Section ===== */
#reviews .card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  position: relative;
}

#reviews .card::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: var(--spacing-lg);
  font-size: 4rem;
  color: var(--primary-color);
  font-family: Georgia, serif;
}

#reviews .card-content {
  padding-top: var(--spacing-xl);
}

/* ===== FAQ Section ===== */
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-light);
  transition: all var(--transition-medium);
  cursor: pointer;
}

.faq-item:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-medium);
}

.faq-question {
  margin-bottom: var(--spacing-sm);
  position: relative;
  padding-right: var(--spacing-xl);
}

.faq-question::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 0;
  font-size: 1.5rem;
  color: var(--primary-color);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  display: none;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--light-color);
}

.faq-item.active .faq-answer {
  display: block;
  animation: fadeInDown 0.3s ease-out;
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Resources Section ===== */
#resources {
  background: var(--gradient-dark);
  color: var(--white-color);
}

#resources .title {
  color: var(--white-color);
}

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

.external-links li {
  margin-bottom: var(--spacing-md);
}

.external-link {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  display: inline-block;
  position: relative;
  transition: all var(--transition-medium);
}

.external-link::after {
  content: '→';
  margin-left: var(--spacing-xs);
  transition: transform var(--transition-fast);
}

.external-link:hover {
  color: var(--white-color);
  transform: translateX(10px);
}

.external-link:hover::after {
  transform: translateX(5px);
}

/* ===== Insights Section ===== */
#insights .card {
  background: linear-gradient(135deg, var(--info-color) 0%, var(--primary-color) 100%);
  color: var(--white-color);
}

#insights .card .title {
  color: var(--white-color);
}

/* ===== News Section ===== */
#news .card {
  border-left: 4px solid var(--primary-color);
  transition: all var(--transition-medium);
}

#news .card:hover {
  border-left-color: var(--secondary-color);
  transform: translateY(-5px);
}

.tag {
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 0.8rem;
}

/* ===== Contact Section ===== */
#contact {
  background: var(--gradient-accent);
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.custom-input,
.custom-textarea,
.custom-select select {
  border: 2px solid var(--light-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-medium);
  font-family: var(--font-body);
}

.custom-input:focus,
.custom-textarea:focus,
.custom-select select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
  transform: translateY(-2px);
}

.label {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--dark-color);
}

/* ===== Footer Styles ===== */
.footer {
  background: var(--gradient-dark);
  color: var(--white-color);
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

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

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

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

.footer-links a {
  color: var(--gray-light);
  text-decoration: none;
  transition: all var(--transition-medium);
  position: relative;
}

.footer-links a:hover {
  color: var(--accent-color);
  transform: translateX(5px);
}

.footer-divider {
  border: none;
  height: 1px;
  background: var(--gray-color);
  margin: var(--spacing-lg) 0;
  opacity: 0.3;
}

/* Social Media Icons */
.social-icons {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border-radius: 50%;
  color: var(--white-color);
  text-decoration: none;
  transition: all var(--transition-medium);
  border: 1px solid var(--glass-border);
}

.social-icon:hover {
  background: var(--primary-color);
  transform: translateY(-3px) scale(1.1);
  box-shadow: var(--shadow-medium);
}

/* ===== Animation Classes ===== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(50px);
  transition: all var(--transition-slow);
}

.animate-on-scroll.animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Special Pages Styles ===== */
/* Success Page */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: var(--white-color);
}

.success-content {
  text-align: center;
  padding: var(--spacing-xxl);
}

.success-content .title {
  color: var(--white-color);
  font-size: 3rem;
  margin-bottom: var(--spacing-lg);
}

.success-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-lg);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-30px);
  }
  60% {
    transform: translateY(-15px);
  }
}

/* Terms and Privacy Pages */
.legal-page {
  padding-top: 100px;
  min-height: 100vh;
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-xxl) var(--spacing-lg);
}

.legal-content h2 {
  color: var(--primary-color);
  border-bottom: 2px solid var(--primary-color);
  padding-bottom: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.legal-content p {
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.legal-content ul {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

.legal-content li {
  margin-bottom: var(--spacing-sm);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  :root {
    --spacing-xxl: 2rem;
    --spacing-xl: 1.5rem;
  }
  
  .hero-body {
    padding: var(--spacing-lg) 0;
  }
  
  .section {
    padding: var(--spacing-lg) 0;
  }
  
  .navbar-menu {
    background: rgba(44, 62, 80, 0.95);
    backdrop-filter: blur(20px);
  }
  
  .hero.parallax-bg {
    background-attachment: scroll;
  }
  
  .card {
    margin-bottom: var(--spacing-lg);
  }
  
  .slider-btn {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }
  
  #instructors .image-container {
    width: 150px;
    height: 150px;
  }
  
  .faq-item:hover {
    transform: none;
  }
  
  .external-link:hover {
    transform: none;
  }
}

@media (max-width: 480px) {
  .hero .title {
    font-size: 2rem;
  }
  
  .hero .subtitle {
    font-size: 1.2rem;
  }
  
  .btn,
  button,
  .button {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.9rem;
  }
  
  .card-content {
    padding: var(--spacing-md);
  }
  
  .gallery-slider {
    margin: 0 var(--spacing-md);
  }
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .parallax-bg {
    background-attachment: scroll !important;
  }
}

/* ===== Print Styles ===== */
@media print {
  .navbar,
  .footer,
  .slider-controls,
  .btn,
  button {
    display: none !important;
  }
  
  .section {
    break-inside: avoid;
  }
  
  .card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid var(--gray-color);
  }
}

/* ===== Dark Mode Support ===== */
@media (prefers-color-scheme: dark) {
  :root {
    --dark-color: #ecf0f1;
    --white-color: #2c3e50;
    --light-color: #34495e;
  }
  
  body {
    background-color: var(--dark-color);
    color: var(--white-color);
  }
  
  .section:nth-child(even) {
    background: linear-gradient(135deg, #34495e 0%, #2c3e50 100%);
  }
  
  .card {
    background: var(--light-color);
    color: var(--white-color);
  }
}

/* ===== Performance Optimizations ===== */
.card,
.btn,
button,
.image-container img {
  will-change: transform;
}

.parallax-bg {
  will-change: background-position;
}

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

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.glass-effect {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
}

.shadow-3d {
  box-shadow: var(--shadow-3d);
}