/* ===================================
   NEON CYBERPUNK AI PORTFOLIO
   Chetan Inaganti 2026
   Minimal code, maximum impact
   =================================== */

/* RESET & BASE */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #0a0015;
  background: radial-gradient(ellipse at center, #120025 0%, #0a0015 100%);
  color: #e0e0ff;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
  position: relative;
}

/* Removed CRT Overlay for better compatibility */

/* Smooth scroll */
html {
  scroll-behavior: smooth;
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  background: linear-gradient(135deg, #0a0015 0%, #1a0033 50%, #0a0015 100%);
  position: relative;
  overflow: hidden;
}

#hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* Subtle animated background effect */
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(circle at 30% 50%, rgba(0,240,255,0.1) 0%, transparent 50%),
    radial-gradient(circle at 70% 50%, rgba(255,0,170,0.1) 0%, transparent 50%);
  animation: rotate-bg 30s linear infinite;
  z-index: 1;
}

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

/* Improvement 2: Glitch Effect */
.glitch {
  position: relative;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.8;
}

.glitch::before {
  color: #00f0ff;
  z-index: -1;
  animation: glitch-anim 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) both infinite;
}

.glitch::after {
  color: #ff00aa;
  z-index: -2;
  animation: glitch-anim 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) reverse both infinite;
}

@keyframes glitch-anim {
  0% { transform: translate(0); }
  20% { transform: translate(-3px, 3px); }
  40% { transform: translate(-3px, -3px); }
  60% { transform: translate(3px, 3px); }
  80% { transform: translate(3px, -3px); }
  100% { transform: translate(0); }
}

.neon-name {
  font-family: 'Orbitron', monospace;
  font-size: clamp(2.5rem, 8vw, 6rem);
  font-weight: 900;
  color: #00f0ff;
  text-shadow: 
    0 0 10px #00f0ff,
    0 0 20px #00f0ff,
    0 0 40px #00f0ff,
    0 0 80px #00f0ff;
  animation: glow-pulse 3s ease-in-out infinite alternate;
  letter-spacing: 0.1em;
  z-index: 10;
  position: relative;
}

@keyframes glow-pulse {
  from {
    text-shadow: 
      0 0 10px #00f0ff,
      0 0 20px #00f0ff,
      0 0 40px #00f0ff;
  }
  to {
    text-shadow: 
      0 0 20px #00f0ff,
      0 0 30px #00f0ff,
      0 0 60px #00f0ff,
      0 0 100px #00f0ff;
  }
}

.tagline {
  font-size: clamp(1rem, 3vw, 2rem);
  margin-top: 1.5rem;
  color: #ff00aa;
  text-shadow: 
    0 0 10px #ff00aa,
    0 0 20px #ff00aa;
  font-weight: 600;
  z-index: 10;
  position: relative;
}

.sub-tagline {
  font-size: clamp(0.9rem, 2vw, 1.2rem);
  margin-top: 0.8rem;
  color: #a020f0;
  text-shadow: 0 0 10px #a020f0;
  font-weight: 300;
  z-index: 10;
  position: relative;
}

/* Profile Photo */
.profile-photo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 30px;
  border: 3px solid #00f0ff;
  box-shadow: 
    0 0 20px #00f0ff,
    0 0 40px rgba(0, 240, 255, 0.5),
    inset 0 0 20px rgba(0, 240, 255, 0.3);
  z-index: 10;
  position: relative;
  animation: glow-pulse 3s ease-in-out infinite alternate;
}

.profile-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===================================
   SECTION COMMONS
   =================================== */
.section {
  padding: 100px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-family: 'Orbitron', monospace;
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: #a020f0;
  text-align: center;
  margin-bottom: 60px;
  text-shadow: 
    0 0 15px #a020f0,
    0 0 30px #a020f0;
  letter-spacing: 0.05em;
}

/* ===================================
   GLASS CARD (About Section)
   =================================== */
.glass-card {
  background: rgba(20, 0, 40, 0.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: 20px;
  padding: 40px;
  box-shadow: 
    0 8px 32px rgba(0, 240, 255, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  transition: all 0.4s ease;
}

.glass-card:hover {
  border-color: rgba(0, 240, 255, 0.5);
  box-shadow: 
    0 12px 48px rgba(0, 240, 255, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transform: translateY(-5px);
}

.glass-card p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #d0d0ff;
}

.glass-card strong {
  color: #00f0ff;
  font-weight: 600;
}

.glass-card a {
  color: #ff00aa;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all 0.3s;
}

.glass-card a:hover {
  border-bottom-color: #ff00aa;
  text-shadow: 0 0 8px #ff00aa;
}

/* ===================================
   SKILLS GRID
   =================================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 25px;
  padding: 0 20px;
}

.skill-pill {
  background: rgba(0, 240, 255, 0.08);
  border: 1.5px solid rgba(0, 240, 255, 0.4);
  border-radius: 12px;
  padding: 20px 15px;
  text-align: center;
  font-weight: 600;
  font-size: 1rem;
  color: #00f0ff;
  transition: all 0.35s ease;
  cursor: default;
}

.skill-pill:hover {
  background: rgba(0, 240, 255, 0.15);
  border-color: #00f0ff;
  transform: scale(1.08);
  box-shadow: 
    0 0 20px rgba(0, 240, 255, 0.5),
    inset 0 0 10px rgba(0, 240, 255, 0.2);
}

/* ===================================
   PROJECTS GRID
   =================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
  padding: 0 20px;
}

/* Improvement 3: Tech Corners for cards */
.project-card {
  background: rgba(30, 0, 50, 0.6);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 0, 170, 0.3);
  /* Cyberpunk cut corner */
  clip-path: polygon(0% 0%, 100% 0%, 100% 90%, 90% 100%, 0% 100%);
  overflow: hidden;
  transition: all 0.4s ease;
  box-shadow: 0 4px 20px rgba(255, 0, 170, 0.15);
}

.project-card:hover {
  transform: translateY(-12px);
  border-color: rgba(255, 0, 170, 0.6);
  clip-path: polygon(0% 0%, 90% 0%, 100% 10%, 100% 100%, 0% 100%);
  box-shadow: 
    0 10px 40px rgba(255, 0, 170, 0.4),
    0 0 30px rgba(255, 0, 170, 0.3);
}

.project-image-placeholder {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, rgba(0,240,255,0.2), rgba(255,0,170,0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid rgba(255,0,170,0.3);
}

.placeholder-text {
  font-size: 2rem;
  opacity: 0.5;
}

.project-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.project-content {
  padding: 25px;
}

.project-content h3 {
  font-family: 'Orbitron', monospace;
  font-size: 1.5rem;
  color: #00f0ff;
  margin-bottom: 12px;
  text-shadow: 0 0 10px rgba(0,240,255,0.5);
}

.project-desc {
  color: #d0d0ff;
  margin-bottom: 15px;
  line-height: 1.6;
}

.project-tech {
  font-size: 0.9rem;
  color: #a020f0;
  margin-bottom: 20px;
  font-style: italic;
}

.project-links {
  display: flex;
  gap: 15px;
}

.btn-neon {
  display: inline-block;
  padding: 10px 20px;
  background: transparent;
  border: 1.5px solid #ff00aa;
  border-radius: 8px;
  color: #ff00aa;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.btn-neon:hover {
  background: rgba(255, 0, 170, 0.15);
  box-shadow: 
    0 0 15px rgba(255, 0, 170, 0.6),
    inset 0 0 10px rgba(255, 0, 170, 0.2);
  transform: scale(1.05);
}

/* ===================================
   CERTIFICATES (PRO 3D CAROUSEL)
   =================================== */
.certificates-section {
  background: #05000a;
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}

.carousel-3d-container {
  width: 100%;
  height: 500px;
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 2000px; /* Deeper perspective */
  position: relative;
}

/* The Glowing Floor/Platter */
.carousel-3d-container::before {
  content: '';
  position: absolute;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
  transform: rotateX(90deg) translateZ(-200px);
  border-radius: 50%;
  z-index: 0;
}

.carousel-3d {
  position: relative;
  width: 280px;
  height: 180px;
  transform-style: preserve-3d;
  /* Slight tilt for better 3D depth */
  transform: rotateX(-5deg); 
  animation: rotate-3d-pro 40s linear infinite;
  transition: transform 0.8s cubic-bezier(0.2, 0, 0.2, 1);
}

.carousel-3d:hover {
  animation-play-state: paused;
  cursor: grab;
}

.carousel-3d .cert-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform-origin: center;
  /* Circular math for 10 items: 360 / 10 = 36deg */
  transform: rotateY(calc(var(--i) * 36deg)) translateZ(500px);
}

.carousel-3d .cert-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 2px solid rgba(0, 240, 255, 0.3);
  border-radius: 12px;
  /* Cyberpunk glow */
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
  /* Reflection effect */
  -webkit-box-reflect: below 15px linear-gradient(transparent, transparent, rgba(0,0,0,0.2));
  transition: all 0.5s ease;
  filter: brightness(0.7) contrast(1.1);
}

/* Make the front-most item pop */
.carousel-3d .cert-item:hover img {
  filter: brightness(1.1) contrast(1.2);
  border-color: #00f0ff;
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.8);
  transform: scale(1.1);
}

@keyframes rotate-3d-pro {
  from { transform: rotateX(-5deg) rotateY(0deg); }
  to { transform: rotateX(-5deg) rotateY(360deg); }
}

.marquee-hint {
  text-align: center;
  margin-top: 60px;
  font-size: 0.9rem;
  color: #ff00aa;
  font-family: 'Orbitron', sans-serif;
  text-transform: uppercase;
  letter-spacing: 4px;
  text-shadow: 0 0 10px #ff00aa;
}

/* Mobile Fixes for 3D Ring */
@media (max-width: 1200px) {
  .carousel-3d .cert-item {
    transform: rotateY(calc(var(--i) * (360deg / 7))) translateZ(400px);
  }
}

@media (max-width: 768px) {
  .carousel-3d-container { height: 400px; }
  .carousel-3d { width: 200px; height: 130px; }
  .carousel-3d .cert-item {
    transform: rotateY(calc(var(--i) * (360deg / 7))) translateZ(280px);
  }
  .carousel-3d-container::before { width: 400px; height: 400px; }
}

@media (max-width: 480px) {
  .carousel-3d .cert-item {
    transform: rotateY(calc(var(--i) * (360deg / 7))) translateZ(200px);
  }
}

/* ===================================
   FOOTER
   =================================== */
.footer {
  text-align: center;
  padding: 60px 20px;
  background: rgba(0, 0, 0, 0.6);
  border-top: 1px solid rgba(0, 240, 255, 0.2);
}

.footer h3 {
  font-family: 'Orbitron', monospace;
  font-size: 2rem;
  color: #00f0ff;
  margin-bottom: 20px;
  text-shadow: 0 0 15px #00f0ff;
}

.social-links {
  margin: 20px 0;
  font-size: 1.1rem;
}

.social-links a {
  color: #ff00aa;
  text-decoration: none;
  margin: 0 10px;
  transition: all 0.3s;
}

.social-links a:hover {
  color: #00f0ff;
  text-shadow: 0 0 10px #00f0ff;
}

.copyright {
  margin-top: 30px;
  font-size: 0.9rem;
  color: #888;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 1024px) {
  .carousel-3d .cert-item {
    transform: rotateY(calc(var(--i) * 51.42deg)) translateZ(350px);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 15px;
  }

  .carousel-3d-container {
    height: 350px;
  }

  .carousel-3d {
    width: 180px;
    height: 120px;
  }

  .carousel-3d .cert-item {
    transform: rotateY(calc(var(--i) * 51.42deg)) translateZ(250px);
  }

  .section-title {
    margin-bottom: 40px;
  }

  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: 15px;
  }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .glass-card {
    padding: 25px;
  }

  .neon-name {
    font-size: 2.5rem;
  }

  .tagline {
    font-size: 1.2rem;
  }

  .marquee-content {
    animation-duration: 20s; /* Faster on mobile */
  }
}

@media (max-width: 480px) {
  .cert-item {
    min-width: 180px;
  }

  .cert-placeholder {
    width: 180px;
    height: 120px;
    font-size: 1rem;
  }

  .cert-item img {
    width: 180px;
    height: 120px;
  }
}

/* ===================================
   CERTIFICATE MODAL
   =================================== */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  padding-top: 60px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(10, 0, 21, 0.95);
  backdrop-filter: blur(10px);
}

.modal-content {
  margin: auto;
  display: block;
  max-width: 90%;
  max-height: 80vh;
  border: 2px solid #00f0ff;
  border-radius: 10px;
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
  animation: zoom 0.3s ease-out;
}

@keyframes zoom {
  from {transform: scale(0.1); opacity: 0;}
  to {transform: scale(1); opacity: 1;}
}

#modal-caption {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
  text-align: center;
  color: #ff00aa;
  padding: 20px 0;
  font-family: 'Orbitron', sans-serif;
  font-size: 1.2rem;
  text-shadow: 0 0 10px #ff00aa;
}

.close-modal {
  position: absolute;
  top: 30px;
  right: 50px;
  color: #00f0ff;
  font-size: 50px;
  font-weight: bold;
  transition: 0.3s;
  cursor: pointer;
  z-index: 1001;
}

.close-modal:hover,
.close-modal:focus {
  color: #ff00aa;
  text-shadow: 0 0 15px #ff00aa;
  text-decoration: none;
}

@media only screen and (max-width: 700px) {
  .modal-content {
    width: 100%;
  }
  .close-modal {
    right: 20px;
    top: 15px;
    font-size: 40px;
  }
}