:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #121212;
  --bg-card: rgba(255, 255, 255, 0.05);
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --accent-primary: #3b82f6; /* Blue */
  --accent-secondary: #8b5cf6; /* Purple */
  --accent-gradient: linear-gradient(
    135deg,
    var(--accent-primary),
    var(--accent-secondary)
  );
  --glass-border: rgba(255, 255, 255, 0.1);
  --transition: all 0.3s ease;
  --font-main: "Inter", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

ul {
  list-style: none;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: 3.5rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  text-align: center;
}

h3 {
  font-size: 1.5rem;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 5rem 0;
}

.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--accent-primary);
  color: var(--text-primary);
}

.btn-outline:hover {
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--accent-secondary);
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-border);
  padding: 1rem 0;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.nav-links a {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 2rem;
    background: radial-gradient(circle at center, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    position: relative;
    overflow: hidden;
}

#neural-network {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    z-index: 2;
    position: relative;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
    font-weight: 500;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(45deg, var(--text-primary), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.typing-text {
    color: var(--text-secondary);
    font-weight: 500;
}

.cursor {
    display: inline-block;
    width: 3px;
    background-color: var(--accent-primary);
    animation: blink 1s infinite;
}

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

.hero-buttons {
    margin-top: 2.5rem;
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

/* Vision Section */
.vision-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.vision-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border-color: var(--accent-primary);
}

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}

.stat-item h3 {
  font-size: 2.5rem;
  color: var(--accent-primary);
  margin-bottom: 0.5rem;
}

.stat-item p {
  font-size: 0.9rem;
  margin: 0;
}

/* Skills Section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.skill-category {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 15px;
  border: 1px solid var(--glass-border);
  transition: var(--transition);
}

.skill-category:hover {
  transform: translateY(-5px);
  border-color: var(--accent-primary);
}

.skill-category h3 {
  margin-bottom: 1.5rem;
  color: var(--accent-primary);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.skill-tag {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.skill-tag:hover {
  background: var(--accent-primary);
  color: white;
}

/* Experience Section */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::after {
  content: "";
  position: absolute;
  width: 2px;
  background: var(--glass-border);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -1px;
}

.timeline-item {
  padding: 10px 40px;
  position: relative;
  background-color: inherit;
  width: 50%;
}

.timeline-item::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  right: -10px;
  background-color: var(--bg-primary);
  border: 4px solid var(--accent-primary);
  top: 15px;
  border-radius: 50%;
  z-index: 1;
}

.left {
  left: 0;
}

.right {
  left: 50%;
}

.left::before {
  content: " ";
  height: 0;
  position: absolute;
  top: 22px;
  width: 0;
  z-index: 1;
  right: 30px;
  border: medium solid var(--bg-card);
  border-width: 10px 0 10px 10px;
  border-color: transparent transparent transparent var(--bg-card);
}

.right::before {
  content: " ";
  height: 0;
  position: absolute;
  top: 22px;
  width: 0;
  z-index: 1;
  left: 30px;
  border: medium solid var(--bg-card);
  border-width: 10px 10px 10px 0;
  border-color: transparent var(--bg-card) transparent transparent;
}

.right::after {
  left: -10px;
}

.timeline-content {
  padding: 20px 30px;
  background: var(--bg-card);
  position: relative;
  border-radius: 15px;
  border: 1px solid var(--glass-border);
}

.timeline-content ul {
  list-style: disc;
  margin-left: 1.5rem;
  margin-top: 0.5rem;
}

.timeline-content li {
  margin-bottom: 0.4rem;
}

.timeline-date {
  color: var(--accent-primary);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  display: block;
}

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

.project-card {
  background: var(--bg-card);
  border-radius: 15px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-10px);
  border-color: var(--accent-primary);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.project-content {
  padding: 2rem;
}

.project-tags {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.project-tag {
  font-size: 0.8rem;
  color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.1);
  padding: 0.2rem 0.8rem;
  border-radius: 15px;
}

.project-links {
  margin-top: 1.5rem;
  display: flex;
  gap: 1rem;
}

.project-link {
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.project-link:hover {
  color: var(--accent-primary);
}

/* Certificates Section */
.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.certificate-card {
  background: var(--bg-card);
  border-radius: 15px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  transition: var(--transition);
  cursor: pointer;
}

.certificate-card:hover {
  transform: scale(1.02);
  border-color: var(--accent-primary);
}

.certificate-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: #2a2a2a;
}

.certificate-info {
  padding: 1.5rem;
}

/* Contact Section */
.contact-container {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 3rem;
}

.contact-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 2rem;
  background: var(--bg-card);
  border-radius: 15px;
  border: 1px solid var(--glass-border);
  min-width: 150px;
  transition: var(--transition);
}

.contact-item:hover {
  transform: translateY(-5px);
  border-color: var(--accent-primary);
}

.contact-icon {
  font-size: 2rem;
  color: var(--accent-primary);
}

/* Tech Stack Marquee */
.tech-stack-marquee {
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.marquee-content {
    display: inline-block;
    animation: marquee 20s linear infinite;
}

.marquee-content i {
    font-size: 3rem;
    margin: 0 2rem;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.marquee-content i:hover {
    color: var(--accent-primary);
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-25%); }
}

/* Modals */
.company-header {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    gap: 15px;
}

.logo-wrapper {
    width: 50px;
    height: 50px;
    min-width: 50px; /* Prevent shrinking */
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    padding: 5px;
    overflow: hidden;
}

.experience-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 4px;
}

.timeline-content h3 {
    color: var(--accent-primary);
    margin-bottom: 5px;
}
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--bg-card);
    margin: 10% auto;
    padding: 2rem;
    border: 1px solid var(--glass-border);
    width: 80%;
    max-width: 800px;
    border-radius: 15px;
    position: relative;
    animation: modalFadeIn 0.4s;
}

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

.close-modal {
    color: var(--text-secondary);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close-modal:hover,
.close-modal:focus {
    color: var(--accent-primary);
    text-decoration: none;
    cursor: pointer;
}

.modal-body h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--accent-secondary);
}

.modal-body ul {
    list-style-type: disc;
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.modal-body li {
    margin-bottom: 0.5rem;
}

/* Footer */
footer {
    background: var(--bg-primary);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--glass-border);
    margin-top: 5rem;
    color: var(--text-secondary);
}

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

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }
  h2 {
    font-size: 2rem;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 70%;
    background: var(--bg-secondary);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.5);
  }

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

  .menu-toggle {
    display: block;
    z-index: 1001;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .timeline::after {
    left: 31px;
  }
  .timeline-item {
    width: 100%;
    padding-left: 70px;
    padding-right: 25px;
  }
  .timeline-item::after {
    left: 21px;
  }
  .left::before,
  .right::before {
    left: 60px;
    border: medium solid var(--bg-card);
    border-width: 10px 10px 10px 0;
    border-color: transparent var(--bg-card) transparent transparent;
  }
  .right {
    left: 0;
  }

  .contact-links {
    flex-direction: column;
  }
}