/* ===================================
   Layout Styles - Header, Navigation, Footer, Modal
   =================================== */

/* ===================================
   Header & Navigation
   =================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 212, 255, 0.2);
  z-index: 1000;
  transition: all var(--transition-base);
  color: #ffffff !important;
}

.header * {
  color: inherit;
}

.header.scrolled {
  background: rgba(0, 0, 0, 0.95);
  box-shadow: var(--glow-intensity);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: #ffffff !important;
  opacity: 1 !important;
}

.logo img {
  width: 50px;
  height: 50px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.6));
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  color: #00d4ff !important;
  text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
  opacity: 1 !important;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  z-index: 1001;
}

.hamburger {
  width: 25px;
  height: 2px;
  background: var(--color-neon-blue);
  transition: all var(--transition-base);
  box-shadow: 0 0 5px rgba(0, 212, 255, 0.5);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-menu a {
  color: rgba(255, 255, 255, 0.85) !important;
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-base);
  position: relative;
  padding: var(--spacing-xs) 0;
  opacity: 1 !important;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 0;
  height: 2px;
  background: var(--color-neon-blue);
  transition: width var(--transition-base);
  box-shadow: var(--glow-intensity);
}

.nav-menu a:hover,
.nav-menu a:focus {
  color: var(--color-neon-blue);
}

.nav-menu a:hover::after,
.nav-menu a:focus::after {
  width: 100%;
}

.nav-register-btn {
  background: linear-gradient(135deg, var(--color-neon-blue), var(--color-neon-blue-light)) !important;
  color: var(--color-bg-primary) !important;
  padding: var(--spacing-xs) var(--spacing-lg) !important;
  border-radius: 6px;
  box-shadow: var(--glow-intensity);
  transition: all var(--transition-base) !important;
}

.nav-register-btn:hover {
  box-shadow: var(--glow-strong) !important;
  transform: translateY(-2px);
}

.nav-register-btn::after {
  display: none !important;
}

/* ===================================
   Hero Section
   =================================== */
.hero-section {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl) var(--spacing-md);
  perspective: 1000px;
  margin-top: 70px;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  animation: fadeInUp 1s ease;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.highlight {
  color: #00d4ff !important;
  position: relative;
  text-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
  opacity: 1 !important;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--color-neon-blue);
  margin-bottom: var(--spacing-md);
  font-weight: 600;
  text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.hero-description {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 1.8;
}

/* ===================================
   3D Join Us Button
   =================================== */
.join-button-container {
  margin-top: var(--spacing-xl);
}

.join-button-3d {
  position: relative;
  display: inline-block;
  background: transparent;
  border: none;
  padding: var(--spacing-md) var(--spacing-2xl);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-neon-blue);
  text-transform: uppercase;
  letter-spacing: 2px;
  cursor: pointer;
  text-decoration: none;
  transform-style: preserve-3d;
  transition: all var(--transition-base);
  perspective: 1000px;
  font-family: var(--font-sans);
}

.button-text {
  position: relative;
  z-index: 2;
  display: block;
  text-shadow: 0 0 20px rgba(0, 212, 255, 0.8);
  transition: all var(--transition-base);
}

.button-border {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 2px solid var(--color-neon-blue);
  border-radius: 4px;
  box-shadow: 
    0 0 20px rgba(0, 212, 255, 0.6),
    inset 0 0 20px rgba(0, 212, 255, 0.1);
  transition: all var(--transition-base);
  z-index: 1;
}

.button-glow {
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  background: linear-gradient(45deg, 
    var(--color-neon-blue), 
    transparent, 
    var(--color-neon-blue), 
    transparent, 
    var(--color-neon-blue)
  );
  border-radius: 4px;
  opacity: 0;
  z-index: 0;
  animation: glow-sweep 3s linear infinite;
  filter: blur(8px);
}

.join-button-3d:hover {
  transform: translateY(-5px) translateZ(20px);
}

.join-button-3d:hover .button-text {
  text-shadow: 0 0 30px rgba(0, 212, 255, 1);
  color: var(--color-neon-blue-light);
}

.join-button-3d:hover .button-border {
  box-shadow: 
    0 0 40px rgba(0, 212, 255, 1),
    inset 0 0 30px rgba(0, 212, 255, 0.3);
  border-color: var(--color-neon-blue-light);
}

.join-button-3d:hover .button-glow {
  opacity: 0.6;
}

.join-button-3d:active {
  transform: translateY(-2px) translateZ(10px);
}

/* ===================================
   Floating Icons
   =================================== */
.floating-icons {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
  top: 0;
  left: 0;
}

.icon-float {
  position: absolute;
  width: 80px;
  height: 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-neon-blue);
  animation: float-icon 8s ease-in-out infinite;
  pointer-events: auto;
  cursor: pointer;
  transition: all var(--transition-base);
}

.icon-float svg {
  width: 40px;
  height: 40px;
  filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.8));
  transition: all var(--transition-base);
}

.icon-float:hover svg {
  transform: scale(1.2);
  filter: drop-shadow(0 0 20px rgba(0, 212, 255, 1));
}

.icon-label {
  margin-top: var(--spacing-xs);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0;
  transition: opacity var(--transition-base);
  text-align: center;
}

.icon-float:hover .icon-label {
  opacity: 1;
}

.icon-ai { top: 15%; left: 10%; animation-delay: 0s; }
.icon-cybersecurity { top: 50%; left: 15%; animation-delay: 2s; }
.icon-webdev { bottom: 30%; right: 10%; animation-delay: 4s; }
.icon-blockchain { top: 30%; right: 15%; animation-delay: 6s; }
.icon-research { bottom: 15%; left: 20%; animation-delay: 8s; }

/* ===================================
   Holographic Modal
   =================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

.modal-container {
  position: relative;
  background: var(--color-bg-surface);
  backdrop-filter: blur(20px);
  border: 2px solid rgba(0, 212, 255, 0.5);
  border-radius: 20px;
  padding: var(--spacing-2xl);
  max-width: 500px;
  width: 90%;
  box-shadow: var(--glow-intense);
  transform: scale(0.8);
  transition: transform var(--transition-slow);
  animation: modal-appear 0.5s ease forwards;
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

.modal-glow {
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, 
    var(--color-neon-blue), 
    transparent, 
    var(--color-neon-blue), 
    transparent
  );
  border-radius: 20px;
  opacity: 0.5;
  z-index: -1;
  animation: glow-pulse 2s ease-in-out infinite;
  filter: blur(10px);
}

.modal-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  background: transparent;
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: var(--color-neon-blue);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.modal-close:hover {
  border-color: var(--color-neon-blue);
  background: rgba(0, 212, 255, 0.1);
  box-shadow: var(--glow-intensity);
}

.modal-close svg {
  width: 20px;
  height: 20px;
}

.modal-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  color: var(--color-neon-blue);
  filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.8));
  animation: icon-pulse 2s ease-in-out infinite;
}

.modal-icon svg {
  width: 100%;
  height: 100%;
}

.modal-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-neon-blue);
  margin-bottom: var(--spacing-md);
  text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.modal-message {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* ===================================
   Circuit Board Footer
   =================================== */
.circuit-footer {
  position: relative;
  background: var(--color-bg-secondary);
  border-top: 1px solid rgba(0, 212, 255, 0.2);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
  margin-top: var(--spacing-2xl);
  z-index: 1;
}

.circuit-lines {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 200px;
  overflow: hidden;
  opacity: 0.6;
}

.circuit-svg {
  width: 100%;
  height: 100%;
}

.circuit-line {
  stroke: var(--color-neon-blue);
  stroke-width: 1;
  opacity: 0.4;
  animation: circuit-pulse 3s ease-in-out infinite;
}

.circuit-node {
  fill: var(--color-neon-blue);
  opacity: 0.6;
  animation: node-pulse 2s ease-in-out infinite;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
  position: relative;
  z-index: 1;
}

.footer-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-neon-blue);
  text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.footer-logo img {
  width: 40px;
  height: 40px;
  filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.6));
}

.footer-text {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
  font-size: 1rem;
}

.footer-copyright {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* ===================================
   WebGL Fallback
   =================================== */
.webgl-fallback {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(239, 68, 68, 0.9);
  color: white;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: 8px;
  z-index: 2000;
  max-width: 90%;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: calc(100vh - 70px);
    background: rgba(0, 0, 0, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--spacing-xl);
    gap: var(--spacing-md);
    transition: right var(--transition-base);
    border-left: 1px solid rgba(0, 212, 255, 0.2);
  }

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

  .hero-section {
    margin-top: 0;
    padding-top: 120px;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .icon-float {
    width: 60px;
    height: 60px;
  }

  .icon-float svg {
    width: 30px;
    height: 30px;
  }

  .icon-label {
    font-size: 0.65rem;
  }

  .join-button-3d {
    font-size: 1.1rem;
    padding: var(--spacing-sm) var(--spacing-xl);
  }
}

@media (max-width: 480px) {
  .hero-section {
    padding: var(--spacing-xl) var(--spacing-sm);
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-description {
    font-size: 0.9rem;
  }

  .join-button-3d {
    font-size: 1rem;
    padding: var(--spacing-sm) var(--spacing-lg);
    letter-spacing: 1px;
  }
}