/* ===============================
   NAVIGATION BAR
   =============================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(10, 10, 10, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 212, 255, 0.2);
  z-index: var(--z-fixed);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.95);
  box-shadow: 0 8px 32px rgba(0, 212, 255, 0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-base);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-accent);
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--text-primary);
}

.nav-brand i {
  font-size: var(--font-2xl);
  color: var(--neon-blue);
  animation: pulse 2s ease-in-out infinite;
}

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

.nav-link {
  font-family: var(--font-accent);
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  transition: all var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--neon-blue);
  text-shadow: 0 0 10px var(--neon-blue);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
  transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.hamburger .bar {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  margin: 3px 0;
  transition: all var(--transition-base);
  border-radius: var(--border-radius-full);
}

.hamburger.active .bar:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
  background: var(--neon-blue);
}

.hamburger.active .bar:nth-child(2) {
  opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
  background: var(--neon-blue);
}

/* ===============================
   HERO SECTION
   =============================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(70px + var(--spacing-4xl)) 0 var(--spacing-4xl) 0;
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-base);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4xl);
  align-items: center;
}

.hero-text {
  z-index: 2;
}

.hero-title {
  font-size: var(--font-6xl);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--spacing-xl);
}

.hero-subtitle {
  font-size: var(--font-xl);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-base);
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.code-preview {
  background: var(--bg-secondary);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-neon);
  transform: perspective(1000px) rotateY(-10deg);
  transition: transform var(--transition-base);
}

.code-preview:hover {
  transform: perspective(1000px) rotateY(0deg);
  box-shadow: var(--shadow-neon-hover);
}

.code-header {
  background: var(--bg-tertiary);
  padding: var(--spacing-base);
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #28ca42; }

.code-content {
  padding: var(--spacing-xl);
  font-family: 'Courier New', monospace;
  font-size: var(--font-sm);
  line-height: 1.6;
  color: var(--text-primary);
}

.code-content .language-javascript {
  color: var(--text-secondary);
}

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
}

.scroll-arrow {
  width: 50px;
  height: 50px;
  border: 2px solid var(--neon-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neon-blue);
  font-size: var(--font-lg);
  animation: bounce 2s infinite;
  cursor: pointer;
  transition: all var(--transition-base);
}

.scroll-arrow:hover {
  background: var(--neon-blue);
  color: var(--bg-primary);
  box-shadow: 0 0 20px var(--neon-blue);
}

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

/* ===============================
   BUTTONS
   =============================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-base) var(--spacing-xl);
  font-family: var(--font-accent);
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--border-radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: var(--font-sm);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-slow);
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
  color: var(--bg-primary);
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.5);
  color: var(--bg-primary);
}

.btn-secondary {
  background: transparent;
  color: var(--neon-blue);
  border: 2px solid var(--neon-blue);
}

.btn-secondary:hover {
  background: var(--neon-blue);
  color: var(--bg-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.3);
}

.btn-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-secondary);
  color: var(--neon-blue);
  border: 1px solid rgba(0, 212, 255, 0.3);
  transition: all var(--transition-base);
}

.btn-icon:hover {
  background: var(--neon-blue);
  color: var(--bg-primary);
  transform: scale(1.1);
  box-shadow: 0 0 20px var(--neon-blue);
}

/* ===============================
   TECHNOLOGY CARDS
   =============================== */

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-3xl);
}

.tech-card {
  background: var(--bg-secondary);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-2xl);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.tech-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(255, 43, 135, 0.1));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.tech-card:hover::before {
  opacity: 1;
}

.tech-card:hover {
  transform: translateY(-10px);
  border-color: var(--neon-blue);
  box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.tech-icon {
  font-size: var(--font-6xl);
  color: var(--neon-blue);
  margin-bottom: var(--spacing-base);
  transition: all var(--transition-base);
}

.tech-card:hover .tech-icon {
  color: var(--neon-pink);
  transform: scale(1.2) rotate(5deg);
}

.tech-card h3 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-xl);
}

.tech-card p {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  margin-bottom: 0;
}

/* ===============================
   PORTFOLIO CARDS
   =============================== */

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-3xl);
}

.portfolio-card {
  background: var(--bg-secondary);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
  position: relative;
}

.portfolio-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
  border-color: var(--neon-blue);
}

.portfolio-image {
  height: 200px;
  background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
  position: relative;
  overflow: hidden;
}

.project-preview {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.8);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.portfolio-card:hover .project-preview {
  opacity: 1;
}

.preview-content {
  text-align: center;
  color: var(--text-primary);
}

.preview-content i {
  font-size: var(--font-5xl);
  color: var(--neon-blue);
  margin-bottom: var(--spacing-base);
}

.preview-content h4 {
  font-size: var(--font-xl);
  margin-bottom: 0;
}

.portfolio-content {
  padding: var(--spacing-xl);
}

.portfolio-content h3 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-base);
  font-size: var(--font-xl);
}

.portfolio-content p {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  margin-bottom: var(--spacing-base);
  line-height: 1.6;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-base);
}

.tech-tag {
  background: rgba(0, 212, 255, 0.1);
  color: var(--neon-blue);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-full);
  font-size: var(--font-xs);
  font-weight: 500;
  border: 1px solid rgba(0, 212, 255, 0.3);
}

.portfolio-links {
  display: flex;
  gap: var(--spacing-sm);
}

/* ===============================
   TEAM CARDS
   =============================== */

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-3xl);
}

.team-card {
  background: var(--bg-secondary);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-2xl);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.team-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(255, 43, 135, 0.1));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.team-card:hover::before {
  opacity: 1;
}

.team-card:hover {
  transform: translateY(-10px);
  border-color: var(--neon-blue);
  box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.team-avatar {
  position: relative;
  width: 100px;
  height: 100px;
  margin: 0 auto var(--spacing-base);
}

.avatar-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-3xl);
  color: var(--bg-primary);
  position: relative;
  z-index: 2;
}

.avatar-ring {
  position: absolute;
  top: -5px;
  left: -5px;
  width: 110px;
  height: 110px;
  border: 2px solid var(--neon-blue);
  border-radius: 50%;
  opacity: 0;
  animation: ring-pulse 2s ease-in-out infinite;
}

.team-card:hover .avatar-ring {
  opacity: 1;
}

@keyframes ring-pulse {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.1); opacity: 0.5; }
  100% { transform: scale(1); opacity: 1; }
}

.team-info h3 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-xl);
}

.role {
  color: var(--neon-blue);
  font-weight: 600;
  margin-bottom: var(--spacing-base);
  font-size: var(--font-sm);
}

.bio {
  color: var(--text-secondary);
  font-size: var(--font-sm);
  margin-bottom: var(--spacing-base);
  line-height: 1.6;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: 50%;
  transition: all var(--transition-base);
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.social-link:hover {
  background: var(--neon-blue);
  color: var(--bg-primary);
  transform: scale(1.1);
  box-shadow: 0 0 20px var(--neon-blue);
}

/* ===============================
   CONTACT FORM
   =============================== */

.contact-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-4xl);
  margin-top: var(--spacing-3xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-base);
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg-primary);
  font-size: var(--font-lg);
  flex-shrink: 0;
}

.contact-text h4 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-lg);
}

.contact-text p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

.contact-form {
  background: var(--bg-secondary);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-2xl);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-base);
  background: var(--bg-tertiary);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--border-radius-base);
  color: var(--text-primary);
  font-size: var(--font-base);
  transition: all var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--neon-blue);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

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

.error-message {
  color: var(--error-color);
  font-size: var(--font-xs);
  margin-top: var(--spacing-xs);
  display: block;
}

/* ===============================
   FOOTER
   =============================== */

.footer {
  background: var(--bg-secondary);
  border-top: 1px solid rgba(0, 212, 255, 0.2);
  padding: var(--spacing-4xl) 0 var(--spacing-xl);
  position: relative;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-base);
  font-size: var(--font-lg);
}

.footer-section ul {
  list-style: none;
}

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

.footer-section a {
  color: var(--text-secondary);
  transition: color var(--transition-base);
}

.footer-section a:hover {
  color: var(--neon-blue);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-accent);
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-base);
}

.footer-brand i {
  font-size: var(--font-2xl);
  color: var(--neon-blue);
}

.footer-section p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-base);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(0, 212, 255, 0.2);
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: var(--spacing-base);
}

.footer-links a {
  color: var(--text-secondary);
  transition: color var(--transition-base);
}

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

.back-to-top {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-pink));
  border: none;
  border-radius: 50%;
  color: var(--bg-primary);
  font-size: var(--font-lg);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: var(--z-fixed);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: scale(1.1);
  box-shadow: 0 0 20px var(--neon-blue);
}