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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #000;
  color: #fff;
  overflow-x: hidden;
  line-height: 1.6;
  transition: all 0.3s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Background Canvas */
#background-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* Background Classes */
.bg-brain #background-canvas {
  background: radial-gradient(circle at center, #1a1a2e 0%, #16213e 50%, #0f0f23 100%);
}
.bg-matrix #background-canvas {
  background: linear-gradient(to bottom, #000000, #001100);
}
.bg-neural #background-canvas {
  background: linear-gradient(135deg, #667eea, #764ba2);
}
.bg-particles #background-canvas {
  background: linear-gradient(to right, #0f0f23, #1a1a2e);
}

/* Floating Elements */
.floating-elements {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.floating-particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: linear-gradient(45deg, #a855f7, #ec4899);
  border-radius: 50%;
  animation: float var(--duration, 10s) var(--delay, 0s) infinite ease-in-out;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(100vh) translateX(0) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100px) translateX(100px) rotate(360deg);
    opacity: 0;
  }
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: none;
  border-bottom: 1px solid rgba(147, 51, 234, 0.2);
  animation: slideDown 0.8s ease-out;
}

@keyframes slideDown {
  from {
    transform: translateY(-100px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.nav-logo:hover {
  transform: scale(1.05);
}

.logo-wrapper {
  position: relative;
  width: 48px;
  height: 48px;
}

.logo-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, #a855f7, #ec4899, #06b6d4, #a855f7);
  mask: radial-gradient(circle, transparent 20px, black 22px);
  animation: spin 3s linear infinite;
}

.logo-image {
  position: absolute;
  inset: 2px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  filter: drop-shadow(0 0 20px rgba(147, 51, 234, 0.8));
  animation: counterSpin 8s linear infinite;
}

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

@keyframes counterSpin {
  to {
    transform: rotate(-360deg);
  }
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  background: linear-gradient(45deg, #a855f7, #ec4899, #06b6d4, #a855f7);
  background-size: 200% 200%;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  animation: gradientShift 3s ease-in-out infinite;
}

@keyframes gradientShift {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: #d1d5db;
  text-decoration: none;
  transition: color 0.3s ease;
  font-weight: 500;
}

.nav-link:hover {
  color: #a855f7;
}

.connect-btn,
.connect-btn-mobile {
  background: #000;
  color: #fff;
  border: 1px solid rgba(147, 51, 234, 0.5);
  padding: 0.5rem 1.5rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
  box-shadow: 0 0 20px rgba(147, 51, 234, 0.5);
}

.connect-btn:hover,
.connect-btn-mobile:hover {
  background: #1f1f1f;
  box-shadow: 0 0 30px rgba(147, 51, 234, 0.7);
  opacity: 1 !important;
  visibility: visible !important;
}

.nav-mobile {
  display: none;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .nav-mobile {
    display: block;
  }
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5rem 1rem 0;
  position: relative;
  z-index: 10;
}

.hero-content {
  text-align: center;
  max-width: 64rem;
  margin: 0 auto;
}

.hero-logo {
  margin-bottom: 2rem;
  animation: fadeInScale 1s ease-out 0.5s both;
}

@keyframes fadeInScale {
  from {
    transform: scale(0);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.hero-logo-wrapper {
  position: relative;
  display: inline-block;
  width: 128px;
  height: 128px;
}

.hero-logo-ring-1,
.hero-logo-ring-2 {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid transparent;
}

.hero-logo-ring-1 {
  background: conic-gradient(from 0deg, #a855f7, #ec4899, #06b6d4, #10b981, #a855f7);
  mask: radial-gradient(circle, transparent 62px, black 64px);
  animation: spin 4s linear infinite;
}

.hero-logo-ring-2 {
  background: conic-gradient(from 180deg, #ec4899, #06b6d4, #a855f7, #ec4899);
  mask: radial-gradient(circle, transparent 66px, black 68px);
  animation: counterSpin 6s linear infinite;
}

.hero-logo-glow {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(147, 51, 234, 0.3), rgba(236, 72, 153, 0.3));
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.3;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.1);
  }
}

.hero-logo-image {
  position: absolute;
  inset: 4px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  filter: drop-shadow(0 0 40px rgba(147, 51, 234, 0.8));
  animation: counterSpin 10s linear infinite;
}

.hero-particles {
  position: absolute;
  inset: 0;
}

.hero-particle {
  position: absolute;
  width: 8px;
  height: 8px;
  background: linear-gradient(45deg, #a855f7, #ec4899);
  border-radius: 50%;
  left: 50%;
  top: 50%;
  transform-origin: 0 0;
  animation: heroParticleFloat 2s ease-in-out infinite;
  animation-delay: calc(var(--angle) / 45 * 0.2s);
}

@keyframes heroParticleFloat {
  0%,
  100% {
    transform: translate(-50%, -50%) rotate(var(--angle)) translateX(0) scale(0);
    opacity: 0;
  }
  50% {
    transform: translate(-50%, -50%) rotate(var(--angle)) translateX(80px) scale(1);
    opacity: 1;
  }
}

.hero-title {
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 900;
  margin-bottom: 1.5rem;
  background: linear-gradient(45deg, #a855f7, #ec4899, #06b6d4, #10b981, #f59e0b, #a855f7);
  background-size: 300% 300%;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  animation: fadeInUp 0.8s ease-out 1s both, gradientShift 4s ease-in-out infinite;
  text-shadow: 0 0 20px rgba(147, 51, 234, 0.8);
}

@keyframes fadeInUp {
  from {
    transform: translateY(50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.hero-subtitle {
  font-size: clamp(1.5rem, 4vw, 3rem);
  color: #d1d5db;
  font-weight: 300;
  margin-bottom: 3rem;
  animation: fadeIn 1s ease-out 1.5s both;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.cursor {
  color: #a855f7;
  animation: blink 1s infinite;
}

@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }
  51%,
  100% {
    opacity: 0;
  }
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  margin-bottom: 4rem;
  animation: fadeInUp 0.8s ease-out 2s both;
}

@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
    justify-content: center;
  }
}

.hero-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border-radius: 9999px;
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid rgba(147, 51, 234, 0.5);
  background: #000;
  color: #fff;
  position: relative;
  z-index: 30;
}

.hero-btn:hover {
  background: #1f1f1f;
  transform: scale(1.02);
  opacity: 1 !important;
  visibility: visible !important;
  filter: none !important;
}

.hero-btn.primary {
  box-shadow: 0 0 30px rgba(147, 51, 234, 0.6);
}

.hero-btn.secondary {
  box-shadow: 0 0 20px rgba(147, 51, 234, 0.4);
}

.scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: #9ca3af;
  animation: fadeIn 1s ease-out 3s both;
}

.scroll-arrow {
  font-size: 1.5rem;
  color: #a855f7;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(10px);
  }
}

/* Sections */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, #a855f7, #ec4899, #06b6d4, #a855f7);
  background-size: 200% 200%;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  animation: gradientShift 4s ease-in-out infinite;
}

.section-subtitle {
  font-size: 1.25rem;
  color: #9ca3af;
  max-width: 32rem;
  margin: 0 auto;
}

/* Projects Section */
.projects {
  padding: 5rem 0;
  position: relative;
  z-index: 10;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.project-card {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(147, 51, 234, 0.2);
  border-radius: 1rem;
  padding: 2rem;
  backdrop-filter: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.project-card:hover {
  border-color: rgba(147, 51, 234, 0.5);
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(147, 51, 234, 0.2);
}

.project-icon {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
}

.red-gradient {
  background: linear-gradient(135deg, #ef4444, #ec4899);
}
.blue-gradient {
  background: linear-gradient(135deg, #3b82f6, #06b6d4);
}
.purple-gradient {
  background: linear-gradient(135deg, #a855f7, #6366f1);
}
.green-gradient {
  background: linear-gradient(135deg, #10b981, #059669);
}
.pink-gradient {
  background: linear-gradient(135deg, #a855f7, #ec4899);
}
.orange-gradient {
  background: linear-gradient(135deg, #f97316, #ef4444);
}

.project-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
}

.project-description {
  color: #d1d5db;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.tag {
  background: rgba(147, 51, 234, 0.2);
  color: #c084fc;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  border: 1px solid rgba(147, 51, 234, 0.3);
}

.project-buttons {
  display: flex;
  gap: 0.75rem;
}

.project-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: 9999px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid rgba(147, 51, 234, 0.5);
  background: #000;
  color: #fff;
  position: relative;
  z-index: 30;
}

.project-btn:hover {
  background: #1f1f1f;
  transform: scale(1.02);
  opacity: 1 !important;
  visibility: visible !important;
}

/* About Section */
.about {
  padding: 5rem 0;
  position: relative;
  z-index: 10;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.about-card {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(147, 51, 234, 0.2);
  border-radius: 1rem;
  padding: 2rem;
  backdrop-filter: none;
  transition: all 0.3s ease;
}

.about-card:hover {
  border-color: rgba(147, 51, 234, 0.5);
  transform: translateY(-5px);
}

.about-icon {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.about-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
}

.about-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: #c084fc;
  margin-bottom: 1rem;
}

.about-text {
  color: #d1d5db;
  line-height: 1.6;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.timeline-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

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

.timeline-dot.purple {
  background: #a855f7;
}
.timeline-dot.pink {
  background: #ec4899;
}

.timeline-year {
  font-weight: 600;
  color: #c084fc;
  min-width: 4rem;
}

.timeline-text {
  color: #d1d5db;
}

/* Contact Section */
.contact {
  padding: 5rem 0;
  position: relative;
  z-index: 10;
}

.contact-form-wrapper {
  max-width: 32rem;
  margin: 0 auto;
}

.contact-form {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(147, 51, 234, 0.2);
  border-radius: 1rem;
  padding: 2rem;
  backdrop-filter: none;
}

.form-group {
  margin-bottom: 1.5rem;
}

.input-wrapper {
  position: relative;
}

.input-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: #a855f7;
  z-index: 1;
}

.input-wrapper input,
.input-wrapper textarea {
  width: 100%;
  padding: 1rem 1rem 1rem 3rem;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(147, 51, 234, 0.3);
  border-radius: 0.5rem;
  color: #fff;
  font-family: inherit;
  transition: all 0.3s ease;
  box-shadow: 0 0 10px rgba(147, 51, 234, 0.2);
}

.input-wrapper input:focus,
.input-wrapper textarea:focus {
  outline: none;
  border-color: #a855f7;
  box-shadow: 0 0 20px rgba(147, 51, 234, 0.4);
}

.input-wrapper input::placeholder,
.input-wrapper textarea::placeholder {
  color: #9ca3af;
}

.input-wrapper textarea {
  resize: vertical;
  min-height: 120px;
}

.submit-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background: #000;
  color: #fff;
  border: 1px solid rgba(147, 51, 234, 0.5);
  border-radius: 9999px;
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 0 30px rgba(147, 51, 234, 0.6);
}

.submit-btn:hover {
  background: #1f1f1f;
  transform: scale(1.02);
  opacity: 1 !important;
  visibility: visible !important;
}

/* Footer */
.footer {
  padding: 3rem 0;
  border-top: 1px solid rgba(147, 51, 234, 0.2);
  position: relative;
  z-index: 10;
}

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

.footer-text {
  font-size: 1.125rem;
  color: #d1d5db;
  margin-bottom: 1.5rem;
  text-shadow: 0 0 20px rgba(147, 51, 234, 0.5);
}

.scroll-top-btn {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: #000;
  color: #fff;
  border: 1px solid rgba(147, 51, 234, 0.5);
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 0 0 30px rgba(147, 51, 234, 0.6);
}

.scroll-top-btn:hover {
  background: #1f1f1f;
  transform: scale(1.1);
  opacity: 1 !important;
  visibility: visible !important;
}

.footer-tagline {
  color: #6b7280;
  font-size: 0.875rem;
}

/* Modal Styles */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal.active {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: none;
}

.modal-content {
  position: relative;
  background: rgba(0, 0, 0, 0.9);
  border: 1px solid rgba(147, 51, 234, 0.3);
  border-radius: 1rem;
  backdrop-filter: none;
  width: 100%;
  max-width: 28rem;
  animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid rgba(147, 51, 234, 0.2);
}

.modal-header h3 {
  color: #fff;
  font-size: 1.25rem;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  color: #9ca3af;
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.3s ease;
}

.modal-close:hover {
  color: #fff;
}

.modal-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(147, 51, 234, 0.2);
  text-decoration: none;
  transition: all 0.3s ease;
  background: rgba(147, 51, 234, 0.1);
}

.social-link:hover {
  border-color: rgba(147, 51, 234, 0.4);
  transform: scale(1.02);
}

.social-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.social-info h4 {
  color: #fff;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.social-info p {
  color: #9ca3af;
  font-size: 0.875rem;
}

.external-icon {
  margin-left: auto;
  color: #9ca3af;
}

/* Chatbot Styles */
.chatbot {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.chatbot.active {
  display: flex;
}

.chatbot-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: none;
}

.chatbot-container {
  position: relative;
  background: rgba(0, 0, 0, 0.9);
  border: 1px solid rgba(147, 51, 234, 0.3);
  border-radius: 1rem;
  backdrop-filter: none;
  width: 100%;
  max-width: 28rem;
  height: 600px;
  display: flex;
  flex-direction: column;
  animation: modalSlideIn 0.3s ease-out;
}

.chatbot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  border-bottom: 1px solid rgba(147, 51, 234, 0.2);
}

.chatbot-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #fff;
  font-weight: 600;
}

.chatbot-avatar {
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  background: linear-gradient(135deg, #a855f7, #ec4899);
  display: flex;
  align-items: center;
  justify-content: center;
}

.chatbot-close {
  background: none;
  border: none;
  color: #9ca3af;
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.3s ease;
}

.chatbot-close:hover {
  color: #fff;
}

.chatbot-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.message {
  display: flex;
}

.bot-message {
  justify-content: flex-start;
}

.user-message {
  justify-content: flex-end;
}

.message-content {
  max-width: 80%;
  padding: 0.75rem;
  border-radius: 0.75rem;
  font-size: 0.875rem;
}

.bot-message .message-content {
  background: rgba(147, 51, 234, 0.2);
  color: #fff;
  border: 1px solid rgba(147, 51, 234, 0.3);
}

.user-message .message-content {
  background: #000;
  color: #fff;
  border: 1px solid rgba(147, 51, 234, 0.5);
}

.typing-indicator {
  display: flex;
  gap: 0.25rem;
  padding: 0.75rem;
}

.typing-dot {
  width: 8px;
  height: 8px;
  background: #a855f7;
  border-radius: 50%;
  animation: typingBounce 1.4s ease-in-out infinite;
}

.typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}
.typing-dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typingBounce {
  0%,
  60%,
  100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-10px);
  }
}

.chatbot-quick-replies {
  padding: 1rem;
  border-top: 1px solid rgba(147, 51, 234, 0.2);
}

.quick-replies-title {
  color: #9ca3af;
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

.quick-reply {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.5rem;
  background: #000;
  color: #fff;
  border: 1px solid rgba(147, 51, 234, 0.3);
  border-radius: 9999px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.quick-reply:hover {
  background: #1f1f1f;
  border-color: rgba(147, 51, 234, 0.5);
}

.chatbot-input {
  display: flex;
  gap: 0.5rem;
  padding: 1rem;
  border-top: 1px solid rgba(147, 51, 234, 0.2);
}

#chatbot-input-field {
  flex: 1;
  padding: 0.75rem;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(147, 51, 234, 0.3);
  border-radius: 0.5rem;
  color: #fff;
  font-family: inherit;
  box-shadow: 0 0 10px rgba(147, 51, 234, 0.2);
}

#chatbot-input-field:focus {
  outline: none;
  border-color: #a855f7;
}

#chatbot-input-field::placeholder {
  color: #9ca3af;
}

.chatbot-send {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: #000;
  color: #fff;
  border: 1px solid rgba(147, 51, 234, 0.5);
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chatbot-send:hover {
  background: #1f1f1f;
}

/* Chat Button */
.chat-button {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background: #000;
  color: #fff;
  border: 1px solid rgba(147, 51, 234, 0.5);
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1.5rem;
  z-index: 100;
  box-shadow: 0 0 30px rgba(147, 51, 234, 0.6);
  animation: fadeInScale 1s ease-out;
}

.chat-button:hover {
  background: #1f1f1f;
  transform: scale(1.1);
  opacity: 1 !important;
  visibility: visible !important;
}

.chat-button.hidden {
  display: none;
}

/* Theme Switcher */
.theme-switcher {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  z-index: 50;
}

.theme-btn {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: #000;
  color: #fff;
  border: 1px solid rgba(147, 51, 234, 0.5);
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1.5rem;
  box-shadow: 0 0 30px rgba(147, 51, 234, 0.6);
}

.theme-btn:hover {
  background: #1f1f1f;
  transform: scale(1.1);
  opacity: 1 !important;
  visibility: visible !important;
}

.theme-panel {
  position: absolute;
  bottom: 4.5rem;
  left: 0;
  width: 20rem;
  background: rgba(0, 0, 0, 0.9);
  border: 1px solid rgba(147, 51, 234, 0.2);
  border-radius: 1rem;
  backdrop-filter: none;
  padding: 1rem;
  display: none;
  animation: modalSlideIn 0.3s ease-out;
}

.theme-panel.active {
  display: block;
}

.theme-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.theme-header h3 {
  color: #fff;
  font-size: 1.125rem;
  font-weight: 600;
}

.auto-theme-btn {
  background: none;
  border: none;
  color: #9ca3af;
  font-size: 0.75rem;
  cursor: pointer;
  transition: color 0.3s ease;
}

.auto-theme-btn.active {
  color: #a855f7;
}

.theme-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.theme-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem;
  background: rgba(31, 31, 31, 0.5);
  border: 1px solid #374151;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: all 0.3s ease;
  color: #fff;
  font-size: 0.875rem;
}

.theme-option:hover {
  border-color: rgba(147, 51, 234, 0.5);
}

.theme-option.active {
  border-color: #a855f7;
  background: rgba(147, 51, 234, 0.2);
}

.theme-preview {
  width: 100%;
  height: 2rem;
  border-radius: 0.5rem;
}

.dark-preview {
  background: linear-gradient(to right, #1f2937, #7c3aed);
}
.light-preview {
  background: linear-gradient(to right, #ffffff, #f3f4f6);
}
.cyberpunk-preview {
  background: linear-gradient(to right, #7c3aed, #ec4899);
}
.terminal-preview {
  background: linear-gradient(to right, #000000, #059669);
}

/* Theme Styles */
body {
  transition: all 0.3s ease;
}

/* Default Theme */
body.theme-default {
  background: #000;
  color: #fff;
}

body.theme-default .navbar {
  background: rgba(0, 0, 0, 0.8);
  border-bottom: 1px solid rgba(147, 51, 234, 0.2);
}

body.theme-default .project-card,
body.theme-default .about-card,
body.theme-default .contact-form {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(147, 51, 234, 0.2);
}

/* Dark Theme */
body.theme-dark {
  background: #1a1a1a;
  color: #e5e5e5;
}

body.theme-dark .navbar {
  background: rgba(26, 26, 26, 0.9);
  border-bottom: 1px solid rgba(75, 85, 99, 0.3);
}

body.theme-dark .project-card,
body.theme-dark .about-card,
body.theme-dark .contact-form {
  background: rgba(31, 31, 31, 0.8);
  border: 1px solid rgba(75, 85, 99, 0.3);
}

body.theme-dark .section-title {
  background: linear-gradient(45deg, #9ca3af, #d1d5db);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

/* Matrix Theme */
body.theme-matrix {
  background: #000;
  color: #00ff00;
}

body.theme-matrix .navbar {
  background: rgba(0, 0, 0, 0.9);
  border-bottom: 1px solid rgba(0, 255, 0, 0.3);
}

body.theme-matrix .project-card,
body.theme-matrix .about-card,
body.theme-matrix .contact-form {
  background: rgba(0, 20, 0, 0.8);
  border: 1px solid rgba(0, 255, 0, 0.3);
}

body.theme-matrix .section-title {
  background: linear-gradient(45deg, #00ff00, #00cc00);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

body.theme-matrix .hero-title {
  background: linear-gradient(45deg, #00ff00, #00cc00, #009900);
  background-size: 300% 300%;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

body.theme-matrix .nav-link:hover {
  color: #00ff00;
}

/* Blue Ocean Theme */
body.theme-blue {
  background: linear-gradient(135deg, #0f172a, #1e293b, #334155);
  color: #e2e8f0;
}

body.theme-blue .navbar {
  background: rgba(15, 23, 42, 0.9);
  border-bottom: 1px solid rgba(59, 130, 246, 0.3);
}

body.theme-blue .project-card,
body.theme-blue .about-card,
body.theme-blue .contact-form {
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

body.theme-blue .section-title {
  background: linear-gradient(45deg, #3b82f6, #06b6d4, #0ea5e9);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

body.theme-blue .hero-title {
  background: linear-gradient(45deg, #3b82f6, #06b6d4, #0ea5e9, #3b82f6);
  background-size: 300% 300%;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

body.theme-blue .nav-link:hover {
  color: #3b82f6;
}

/* Galaxy Theme */
body.theme-galaxy {
  background: radial-gradient(ellipse at center, #2d1b69 0%, #11052c 50%, #000 100%);
  color: #e879f9;
}

body.theme-galaxy .navbar {
  background: rgba(17, 5, 44, 0.9);
  border-bottom: 1px solid rgba(232, 121, 249, 0.3);
}

body.theme-galaxy .project-card,
body.theme-galaxy .about-card,
body.theme-galaxy .contact-form {
  background: rgba(45, 27, 105, 0.6);
  border: 1px solid rgba(232, 121, 249, 0.3);
}

body.theme-galaxy .section-title {
  background: linear-gradient(45deg, #e879f9, #c084fc, #a855f7);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

body.theme-galaxy .hero-title {
  background: linear-gradient(45deg, #e879f9, #c084fc, #a855f7, #e879f9);
  background-size: 300% 300%;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

body.theme-galaxy .nav-link:hover {
  color: #e879f9;
}

/* Theme Preview Updates */
.default-preview {
  background: linear-gradient(to right, #000000, #9333ea);
}

.matrix-preview {
  background: linear-gradient(to right, #000000, #00ff00);
}

.blue-preview {
  background: linear-gradient(to right, #0f172a, #3b82f6);
}

.galaxy-preview {
  background: linear-gradient(to right, #2d1b69, #e879f9);
}

.theme-hint {
  color: #9ca3af;
  font-size: 0.75rem;
  text-align: center;
}

.theme-indicator {
  position: absolute;
  top: -0.5rem;
  right: -0.5rem;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.8);
  border: 1px solid #a855f7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
}

/* Background Switcher */
.background-switcher {
  position: fixed;
  bottom: 6rem;
  left: 1rem;
  z-index: 50;
}

.background-btn {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: #000;
  color: #fff;
  border: 1px solid rgba(147, 51, 234, 0.5);
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1.5rem;
  box-shadow: 0 0 20px rgba(147, 51, 234, 0.5);
}

.background-btn:hover {
  background: #1f1f1f;
  transform: scale(1.1);
  opacity: 1 !important;
  visibility: visible !important;
}

.background-panel {
  position: absolute;
  bottom: 4.5rem;
  left: 0;
  width: 20rem;
  background: rgba(0, 0, 0, 0.9);
  border: 1px solid rgba(147, 51, 234, 0.2);
  border-radius: 1rem;
  backdrop-filter: none;
  padding: 1rem;
  display: none;
  animation: modalSlideIn 0.3s ease-out;
  max-height: 24rem;
  overflow-y: auto;
}

.background-panel.active {
  display: block;
}

.background-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.background-header h3 {
  color: #fff;
  font-size: 1.125rem;
  font-weight: 600;
}

.background-close {
  background: none;
  border: none;
  color: #9ca3af;
  font-size: 1.25rem;
  cursor: pointer;
  transition: color 0.3s ease;
}

.background-close:hover {
  color: #fff;
}

.background-current {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(147, 51, 234, 0.2);
}

.background-current p {
  color: #9ca3af;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.current-bg-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.current-bg-preview {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 2px solid #a855f7;
  background: linear-gradient(135deg, #667eea, #764ba2, #f093fb);
}

.current-bg-info span {
  color: #fff;
  font-weight: 500;
}

.current-bg-info p {
  color: #9ca3af;
  font-size: 0.75rem;
  margin: 0;
}

.background-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.background-option {
  display: flex;
  flex-direction: column;
  padding: 0.75rem;
  background: rgba(31, 31, 31, 0.5);
  border: 2px solid #374151;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: left;
}

.background-option:hover {
  border-color: rgba(147, 51, 234, 0.5);
  background: rgba(147, 51, 234, 0.1);
}

.background-option.active {
  border-color: #a855f7;
  background: rgba(147, 51, 234, 0.2);
}

.bg-preview {
  width: 100%;
  height: 1.5rem;
  border-radius: 0.5rem;
  margin-bottom: 0.5rem;
  border: 1px solid #374151;
}

.brain-preview {
  background: linear-gradient(135deg, #667eea, #764ba2, #f093fb);
}
.matrix-preview {
  background: linear-gradient(to bottom, #000000, #001100);
}
.neural-preview {
  background: linear-gradient(135deg, #667eea, #764ba2);
}
.particles-preview {
  background: linear-gradient(to right, #0f0f23, #1a1a2e);
}

.bg-info span {
  color: #fff;
  font-size: 0.875rem;
  font-weight: 500;
  display: block;
  margin-bottom: 0.25rem;
}

.bg-info p {
  color: #9ca3af;
  font-size: 0.75rem;
  margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 3rem;
  }

  .hero-subtitle {
    font-size: 1.5rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-buttons {
    flex-direction: column;
  }

  .project-buttons {
    flex-direction: column;
  }

  .theme-panel,
  .background-panel {
    width: 18rem;
  }

  .chatbot-container {
    height: 500px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 0.5rem;
  }

  .hero {
    padding: 4rem 0.5rem 0;
  }

  .theme-panel,
  .background-panel {
    width: 16rem;
  }

  .background-grid,
  .theme-grid {
    grid-template-columns: 1fr;
  }
}

/* Utility Classes */
.btn-icon {
  display: inline-block;
  margin-right: 0.5rem;
}

.hidden {
  display: none !important;
}

.fade-in {
  animation: fadeIn 0.5s ease-out;
}

.slide-up {
  animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.1);
}

::-webkit-scrollbar-thumb {
  background: rgba(147, 51, 234, 0.5);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(147, 51, 234, 0.7);
}

/* Button Visibility Protection */
button,
.hero-btn,
.project-btn,
.connect-btn,
.submit-btn,
.chat-button,
.theme-btn,
.background-btn,
.scroll-top-btn {
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
  display: flex !important;
}

button:hover,
button:focus,
button:active,
.hero-btn:hover,
.hero-btn:focus,
.hero-btn:active {
  opacity: 1 !important;
  visibility: visible !important;
  filter: none !important;
}