/* CSS Variables */
:root {
  --color-primary: #1E90FF;  /* Electric Blue */
  --color-accent: #00FFC6;   /* Neon Mint */
  --color-bg-dark: #0A0F24;  /* Deep Midnight Blue */
  --color-bg-panel: #12192E; /* Graphite Navy */
  --color-neutral: #2C2C2E;  /* Neutral Gray */
  --color-text: #FFFFFF;     /* Clean White */
  --font-heading: 'Orbitron', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.25);
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --transition: all 0.3s ease;
  --glow-primary: 0 0 15px rgba(30, 144, 255, 0.5);
  --glow-accent: 0 0 20px rgba(0, 255, 198, 0.5);
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

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

body.no-scroll {
  overflow: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 2rem);
}

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

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

a:hover {
  color: var(--color-accent);
  text-shadow: var(--glow-accent);
}

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

button, .btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: var(--color-primary);
  color: var(--color-text);
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: var(--shadow-soft);
}

button:hover, .btn:hover {
  background: var(--color-accent);
  color: var(--color-bg-dark);
  transform: translateY(-3px);
  box-shadow: var(--glow-accent);
}

/* Container */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-md);
}

/* Utility Classes */
.text-gradient {
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

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

.section {
  padding: var(--space-xl) 0;
}

.bg-panel {
  background-color: var(--color-bg-panel);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
}

.glow-border {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.glow-border::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, var(--color-primary), var(--color-accent));
  z-index: -1;
  border-radius: var(--radius-lg);
}

.hidden {
  display: none;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition);
  padding: 1.5rem 0;
}

.header.scrolled {
  background: rgba(10, 15, 36, 0.9);
  backdrop-filter: blur(10px);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  padding: 1rem 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
}

.logo a {
  color: var(--color-text);
  text-decoration: none;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
}

.nav-close {
  display: none;
}

.nav-close-btn {
  display: none;
  border: none;
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
}

.nav-item a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  position: relative;
}

.nav-item a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: var(--transition);
}

.nav-item a:hover::after {
  width: 100%;
  box-shadow: var(--glow-accent);
}

.burger {
  display: none;
  cursor: pointer;
}

.burger .line {
  width: 25px;
  height: 3px;
  background: var(--color-text);
  margin: 5px 0;
  border-radius: 3px;
  transition: var(--transition);
}

.menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 15, 36, 0.6);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 950;
}

.menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Hero Section */
.hero {
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(135deg, var(--color-bg-dark), var(--color-bg-panel));
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  width: 200%;
  height: 200%;
  background-image: radial-gradient(circle at center, rgba(30, 144, 255, 0.1) 0%, transparent 50%);
  top: -50%;
  left: -50%;
  animation: rotate 30s linear infinite;
  pointer-events: none;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.hero-content {
  max-width: 700px;
  position: relative;
  z-index: 1;
}

.hero h1 {
  margin-bottom: var(--space-lg);
}

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

/* Courses Section */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.course-card {
  background: var(--color-bg-panel);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-soft);
  height: 100%;
  transform-style: preserve-3d;
  perspective: 1000px;
}

.course-card:hover {
  transform: translateY(-10px) rotateY(5deg);
  box-shadow: var(--glow-primary);
}

.course-image {
  height: 200px;
  overflow: hidden;
  position: relative;
}

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

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

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

.course-info {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-md);
  font-size: 0.85rem;
}

.course-difficulty {
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius);
  background: rgba(30, 144, 255, 0.2);
  color: var(--color-primary);
}

/* About Section */
.about-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-xl);
  align-items: center;
}

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

.about-card-image {
  height: 180px;
  background: linear-gradient(135deg, rgba(30, 144, 255, 0.35), rgba(0, 255, 198, 0.15));
}

/* Portfolio Section */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-md);
}

.portfolio-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 1/1;
}

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

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 15, 36, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-item:hover .portfolio-image {
  transform: scale(1.1);
}

/* Testimonials */
.testimonial-slider {
  display: flex;
  gap: var(--space-lg);
  overflow-x: auto;
  padding: var(--space-md);
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) var(--color-bg-panel);
}

.testimonial-slider::-webkit-scrollbar {
  height: 8px;
}

.testimonial-slider::-webkit-scrollbar-track {
  background: var(--color-bg-panel);
  border-radius: 10px;
}

.testimonial-slider::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 10px;
}

.testimonial-card {
  min-width: 300px;
  background: var(--color-bg-panel);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 20px;
  left: 20px;
  font-size: 4rem;
  color: var(--color-primary);
  opacity: 0.2;
  font-family: var(--font-heading);
}

.testimonial-content {
  font-style: italic;
  margin-bottom: var(--space-md);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  overflow: hidden;
}

/* Contact Section */
.contact-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-xl);
  align-items: center;
}

.contact-form-container {
  background: var(--color-bg-panel);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-soft);
}

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

.form-group label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 500;
}

.form-input {
  width: 100%;
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: var(--font-body);
  transition: var(--transition);
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: var(--glow-primary);
  outline: none;
}

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

.contact-info {
  background: linear-gradient(45deg, rgba(30, 144, 255, 0.2), rgba(0, 255, 198, 0.2));
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-soft);
}

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

.contact-icon {
  font-size: 1.5rem;
  color: var(--color-accent);
}

/* Footer */
.footer {
  background: var(--color-bg-panel);
  padding: var(--space-xl) 0;
  margin-top: var(--space-xl);
  position: relative;
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), var(--color-accent), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
}

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

.footer-links h3 {
  position: relative;
  display: inline-block;
  padding-bottom: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.footer-links h3::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 2px;
  background: var(--color-accent);
  box-shadow: var(--glow-accent);
}

.footer-link-list {
  list-style: none;
}

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

.footer-bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-legal {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

/* Legal Pages */
.legal-page {
  background: #fff;
  color: #000;
  padding: var(--space-xl);
  max-width: 800px;
  margin: 0 auto;
}

.legal-title {
  border-bottom: 2px solid #eee;
  padding-bottom: var(--space-md);
  margin-bottom: var(--space-lg);
  color: #000;
}

.legal-content h2 {
  color: #000;
  margin-top: var(--space-xl);
  font-size: 1.5rem;
}

.legal-navigation {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.legal-navigation a {
  color: #555;
}

/* 404 Page */
.error-page {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.error-content {
  max-width: 600px;
}

.error-code {
  font-size: 8rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: var(--space-lg);
}

/* Thank You Page */
.thank-you-page {
  min-height: calc(100vh - 6rem);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 0;
}

.thank-you-content {
margin: 0 auto;
  max-width: 600px;
}

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

.page-title {
font-size: 1.5rem;
  line-height: 1;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    flex-direction: column;
    background: var(--color-bg-panel);
    width: 250px;
    height: 100vh;
    z-index: 999;
    padding: 100px 2rem 2rem;
    transition: 0.3s;
    box-shadow: var(--shadow-soft);
    align-items: flex-start;
  }

  .nav-menu .nav-close {
    display: flex;
    justify-content: flex-end;
    width: 100%;
    margin-bottom: var(--space-lg);
  }

  .nav-close-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text);
    font-size: 1.75rem;
    transition: var(--transition);
  }

  .nav-close-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-accent);
  }

  .nav-close-btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
  }

  .nav-container {
    gap: var(--space-md);
  }

  .nav-menu.active {
    right: 0;
  }

  .logo {
    font-size: 1.25rem;
  }

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

  .nav-item a {
    display: block;
    width: 100%;
  }

  .burger {
    display: block;
    z-index: 1000;
  }

  .burger.active .line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .burger.active .line:nth-child(2) {
    opacity: 0;
  }

  .burger.active .line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .about-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero-content {
    text-align: center;
    margin: 0 auto;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer-legal {
    justify-content: center;
  }
}

@media (max-width: 600px) {
  .logo {
    font-size: 1.1rem;
  }

  .header {
    padding: 1rem 0;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }

  .courses-grid,
  .portfolio-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 480px) {
  .container {
    width: 95%;
    padding: var(--space-sm);
  }

  .hero {
    min-height: 500px;
  }

  .section {
    padding: var(--space-lg) 0;
  }

  .legal-navigation {
    display: none;
  }
}

body.legal-page-body .header {
  background: rgba(10, 15, 36, 0.95);
  box-shadow: var(--shadow-soft);
}

body.legal-page-body main.section {
  padding-top: calc(var(--space-xl) + 5rem);
}

body.legal-page-body .legal-page {
  margin-top: var(--space-md);
}