/* 
======================
    Scientific Theme
======================
*/

:root {
  /* Scientific Palette */
  --sci-bg-dark: #050a10;
  --sci-bg-panel: #0a1525;
  --sci-primary: #00f0ff;
  /* Cyan */
  --sci-secondary: #0077ff;
  /* Deep Blue */
  --sci-accent: #ff3366;
  /* Alert Red/Pink */
  --sci-text-main: #e0f0ff;
  --sci-text-dim: #8baecb;
  --sci-border: rgba(0, 240, 255, 0.3);
  --sci-grid: rgba(0, 240, 255, 0.05);

  /* Fonts */
  --font-display: 'Orbitron', sans-serif;
  --font-mono: 'Share Tech Mono', monospace;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Effects */
  --glow-text: 0 0 10px rgba(0, 240, 255, 0.5);
  --glow-box: 0 0 15px rgba(0, 240, 255, 0.2);
  --border-tech: 1px solid var(--sci-border);
}

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

body {
  background-color: var(--sci-bg-dark);
  color: var(--sci-text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  background-image:
    linear-gradient(var(--sci-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--sci-grid) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center top;
}

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

::-webkit-scrollbar-track {
  background: var(--sci-bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--sci-secondary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--sci-primary);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--sci-primary);
  text-shadow: var(--glow-text);
}

a {
  color: var(--sci-primary);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: #fff;
  text-shadow: 0 0 8px var(--sci-primary);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: var(--space-12);
  position: relative;
  display: inline-block;
  left: 50%;
  transform: translateX(-50%);
}

.section-title::before,
.section-title::after {
  content: '[ ';
  color: var(--sci-secondary);
  margin-right: 10px;
}

.section-title::after {
  content: ' ]';
  margin-left: 10px;
  margin-right: 0;
}

/* Header */
#header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(5, 10, 16, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--sci-border);
  z-index: 1000;
  padding: var(--space-4) 0;
}

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

.logo a {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--sci-text-main);
}

.highlight {
  color: var(--sci-primary);
}

.nav-menu {
  display: flex;
  gap: var(--space-8);
  list-style: none;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--sci-text-dim);
  position: relative;
}

.nav-link.active,
.nav-link:hover {
  color: var(--sci-primary);
}

.nav-link::before {
  content: '>';
  opacity: 0;
  margin-right: 5px;
  transition: opacity 0.3s;
}

.nav-link:hover::before,
.nav-link.active::before {
  opacity: 1;
}

.actions {
  display: flex;
  gap: var(--space-4);
}

#theme-toggle {
  background: transparent;
  border: 1px solid var(--sci-primary);
  color: var(--sci-primary);
  padding: 5px 10px;
  cursor: pointer;
  font-family: var(--font-mono);
  /* Hide theme toggle as we are enforcing dark mode for this theme */
  display: none;
}

#mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--sci-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 70% 50%, rgba(0, 240, 255, 0.1), transparent 60%);
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}

.hero-text h1 {
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: var(--space-4);
}

.hero-text h2 {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--sci-secondary);
  margin-bottom: var(--space-6);
}

.hero-text p {
  color: var(--sci-text-dim);
  font-size: 1.1rem;
  max-width: 500px;
  margin-bottom: var(--space-8);
  border-left: 2px solid var(--sci-primary);
  padding-left: var(--space-4);
}

.hero-buttons {
  display: flex;
  gap: var(--space-4);
}

.btn {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
  background: transparent;
  border: 1px solid var(--sci-primary);
  color: var(--sci-primary);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

.btn:hover {
  background: rgba(0, 240, 255, 0.1);
  box-shadow: var(--glow-box);
  text-shadow: var(--glow-text);
}

.btn-primary {
  background: rgba(0, 240, 255, 0.1);
}

.social-links {
  margin-top: var(--space-8);
  display: flex;
  gap: var(--space-6);
}

.social-links a {
  font-size: 1.5rem;
  color: var(--sci-text-dim);
}

.social-links a:hover {
  color: var(--sci-primary);
  transform: translateY(-3px);
}

.hero-image {
  position: relative;
  display: flex;
  justify-content: center;
}

.image-container {
  position: relative;
  width: 350px;
  height: 350px;
}

.image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  /* Keep circular for profile but add tech border */
  border: 2px solid var(--sci-primary);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.2);
  filter: grayscale(20%) contrast(120%);
}

.image-container::after {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  right: -20px;
  bottom: -20px;
  border: 1px dashed var(--sci-secondary);
  border-radius: 50%;
  animation: spin 20s linear infinite;
}

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

/* About Section */
.about-section {
  padding: var(--space-16) 0;
  background: var(--sci-bg-panel);
  border-top: 1px solid var(--sci-border);
  border-bottom: 1px solid var(--sci-border);
}

.about-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-8);
}

.about-text p {
  color: var(--sci-text-dim);
  margin-bottom: var(--space-4);
}

.about-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.education h4,
.experience h4 {
  font-family: var(--font-mono);
  color: var(--sci-primary);
  border-bottom: 1px solid var(--sci-border);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-4);
}

.education ul,
.experience ul {
  list-style: none;
}

.education li,
.experience li {
  margin-bottom: var(--space-4);
  display: flex;
  gap: var(--space-3);
}

.detail-title {
  font-weight: 700;
  color: var(--sci-text-main);
}

.detail-subtitle {
  font-size: 0.9rem;
  color: var(--sci-text-dim);
  font-family: var(--font-mono);
}

.card {
  background: rgba(5, 10, 16, 0.5);
  border: 1px solid var(--sci-border);
  padding: var(--space-6);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 20px;
  height: 20px;
  border-top: 2px solid var(--sci-primary);
  border-left: 2px solid var(--sci-primary);
}

.card::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 20px;
  height: 20px;
  border-bottom: 2px solid var(--sci-primary);
  border-right: 2px solid var(--sci-primary);
}

.card h3 {
  font-size: 1.2rem;
  margin-bottom: var(--space-4);
  color: var(--sci-secondary);
}

.card ul li {
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--sci-text-dim);
}

.interest-tag {
  display: inline-block;
  padding: 2px 8px;
  margin: 2px;
  background: rgba(0, 119, 255, 0.2);
  border: 1px solid var(--sci-secondary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--sci-text-main);
}

/* Skills Section */
.skills-section {
  padding: var(--space-16) 0;
}

.skills-categories {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.skill-category {
  background: var(--sci-bg-panel);
  border: 1px solid var(--sci-border);
  padding: var(--space-6);
  transition: transform 0.3s;
}

.skill-category:hover {
  transform: translateY(-5px);
  box-shadow: var(--glow-box);
  border-color: var(--sci-primary);
}

.skill-icon {
  font-size: 2rem;
  color: var(--sci-primary);
  margin-bottom: var(--space-4);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--sci-text-dim);
  border: 1px solid var(--sci-border);
  padding: 2px 8px;
}

.proficiency {
  max-width: 800px;
  margin: 0 auto;
  background: var(--sci-bg-panel);
  padding: var(--space-8);
  border: 1px solid var(--sci-border);
}

.proficiency-item {
  margin-bottom: var(--space-6);
}

.proficiency-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-2);
  font-family: var(--font-mono);
  color: var(--sci-primary);
}

.progress-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  position: relative;
}

.progress {
  height: 100%;
  background: var(--sci-primary);
  box-shadow: 0 0 10px var(--sci-primary);
  width: 0;
  /* Animated by JS */
  position: relative;
}

.progress::after {
  content: '';
  position: absolute;
  right: 0;
  top: -4px;
  width: 4px;
  height: 16px;
  background: #fff;
}

/* Portfolio Section */
.portfolio-section {
  padding: var(--space-16) 0;
  background: var(--sci-bg-panel);
}

.portfolio-filter {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
  flex-wrap: wrap;
}

.filter-btn {
  background: transparent;
  border: 1px solid var(--sci-text-dim);
  color: var(--sci-text-dim);
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all 0.3s;
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--sci-primary);
  color: var(--sci-primary);
  background: rgba(0, 240, 255, 0.1);
  box-shadow: var(--glow-text);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-8);
}

.portfolio-item {
  background: var(--sci-bg-dark);
  border: 1px solid var(--sci-border);
  position: relative;
  overflow: hidden;
  transition: all 0.3s;
}

.portfolio-item:hover {
  border-color: var(--sci-primary);
  transform: translateY(-5px);
  box-shadow: var(--glow-box);
}

.portfolio-image {
  height: 200px;
  overflow: hidden;
  position: relative;
}

.portfolio-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
  filter: grayscale(50%);
}

.portfolio-item:hover .portfolio-image img {
  transform: scale(1.1);
  filter: grayscale(0%);
}

.image-overlay {
  position: absolute;
  top: 10px;
  right: 10px;
}

.category-badge {
  background: var(--sci-primary);
  color: var(--sci-bg-dark);
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.portfolio-content {
  padding: var(--space-6);
}

.portfolio-content h3 {
  font-size: 1.3rem;
  margin-bottom: var(--space-2);
}

.portfolio-content p {
  color: var(--sci-text-dim);
  font-size: 0.9rem;
  margin-bottom: var(--space-4);
}

.technology-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.tech-tag {
  font-size: 0.75rem;
  color: var(--sci-secondary);
  border: 1px solid var(--sci-secondary);
  padding: 1px 6px;
  font-family: var(--font-mono);
}

.portfolio-links {
  display: flex;
  gap: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-4);
}

.portfolio-links a {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-transform: uppercase;
}

.view-more {
  text-align: center;
  margin-top: var(--space-12);
}

/* Contact Section */
.contact-section {
  padding: var(--space-16) 0;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-12);
}

.contact-info p {
  color: var(--sci-text-dim);
  margin-bottom: var(--space-8);
}

.contact-item {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.contact-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--sci-primary);
  color: var(--sci-primary);
  background: rgba(0, 240, 255, 0.1);
}

.contact-text h4 {
  font-family: var(--font-mono);
  color: var(--sci-text-main);
  font-size: 1rem;
  margin-bottom: var(--space-1);
}

.availability-card {
  background: var(--sci-bg-panel);
  border: 1px solid var(--sci-success, #00ffaa);
  padding: var(--space-4);
  margin-top: var(--space-8);
}

.availability-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
  color: #00ffaa;
  font-family: var(--font-mono);
}

.status-indicator {
  width: 10px;
  height: 10px;
  background: #00ffaa;
  border-radius: 50%;
  box-shadow: 0 0 10px #00ffaa;
  animation: blink 2s infinite;
}

@keyframes blink {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

.form-card {
  background: var(--sci-bg-panel);
  border: 1px solid var(--sci-border);
  padding: var(--space-8);
  position: relative;
}

.form-card::before {
  content: 'INPUT_TERMINAL';
  position: absolute;
  top: -10px;
  left: 20px;
  background: var(--sci-bg-dark);
  padding: 0 10px;
  font-family: var(--font-mono);
  color: var(--sci-primary);
  font-size: 0.8rem;
}

.form-group {
  margin-bottom: var(--space-4);
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  color: var(--sci-text-dim);
  margin-bottom: var(--space-2);
  font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--sci-border);
  color: var(--sci-text-main);
  padding: var(--space-3);
  font-family: var(--font-mono);
  transition: all 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--sci-primary);
  box-shadow: var(--glow-box);
}

.error-message {
  color: var(--sci-accent);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  margin-top: 5px;
  min-height: 20px;
}

/* Footer */
#footer {
  background: #020408;
  border-top: 1px solid var(--sci-border);
  padding: var(--space-12) 0 var(--space-6);
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--sci-text-main);
  display: block;
  margin-bottom: var(--space-4);
}

.footer-info p {
  color: var(--sci-text-dim);
  margin-bottom: var(--space-4);
}

.link-group h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-4);
  color: var(--sci-secondary);
}

.link-group ul {
  list-style: none;
}

.link-group li {
  margin-bottom: var(--space-2);
}

.link-group a {
  color: var(--sci-text-dim);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.link-group a:hover {
  color: var(--sci-primary);
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  color: var(--sci-text-dim);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

/* Responsive */
@media (max-width: 768px) {

  .hero-content,
  .about-content,
  .contact-content,
  .footer-content {
    grid-template-columns: 1fr;
  }

  .hero-text h1 {
    font-size: 2.5rem;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--sci-bg-panel);
    flex-direction: column;
    padding: var(--space-6);
    border-bottom: 1px solid var(--sci-primary);
    transform: translateY(-150%);
    transition: transform 0.3s;
    gap: var(--space-4);
  }

  .nav-menu.active {
    transform: translateY(0);
  }

  #mobile-menu-btn {
    display: block;
  }

  .actions {
    gap: var(--space-2);
  }

  .hero-image {
    order: -1;
    margin-bottom: var(--space-6);
  }

  .image-container {
    width: 250px;
    height: 250px;
  }
}

/* Toast */
#toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 2000;
}

.toast {
  background: var(--sci-bg-panel);
  border: 1px solid var(--sci-primary);
  color: var(--sci-text-main);
  padding: 15px 20px;
  margin-top: 10px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
  font-family: var(--font-mono);
  animation: slideIn 0.3s ease;
}

.toast-success {
  border-color: var(--sci-primary);
}

.toast-error {
  border-color: var(--sci-accent);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Back to top */
#backToTop {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 40px;
  height: 40px;
  background: var(--sci-bg-panel);
  border: 1px solid var(--sci-primary);
  color: var(--sci-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s;
  z-index: 900;
}

#backToTop.visible {
  opacity: 1;
  pointer-events: all;
}

#backToTop:hover {
  background: var(--sci-primary);
  color: var(--sci-bg-dark);
  box-shadow: var(--glow-box);
}

/* Resume Downloads */
.resume-downloads {
  margin-top: var(--space-6);
  border-top: 1px solid var(--sci-border);
  padding-top: var(--space-4);
}

.resume-downloads h3 {
  font-size: 1rem;
  color: var(--sci-secondary);
  margin-bottom: var(--space-4);
  font-family: var(--font-mono);
}

.resume-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.btn-tech {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(0, 240, 255, 0.05);
  border: 1px solid var(--sci-border);
  color: var(--sci-text-dim);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  justify-content: flex-start;
  padding: var(--space-2) var(--space-3);
  transition: all 0.3s;
}

.btn-tech:hover {
  background: rgba(0, 240, 255, 0.15);
  border-color: var(--sci-primary);
  color: var(--sci-primary);
  transform: translateX(5px);
  box-shadow: var(--glow-text);
}

.btn-tech i {
  width: 20px;
  text-align: center;
  color: var(--sci-secondary);
}

.btn-tech:hover i {
  color: var(--sci-primary);
}

/* Internships Section */
.internships-section {
  padding: var(--space-16) 0;
  background: var(--sci-bg-dark);
  position: relative;
}

.internship-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
}

.internship-card {
  background: rgba(10, 21, 37, 0.6);
  border: 1px solid var(--sci-border);
  padding: var(--space-6);
  border-radius: 4px;
  position: relative;
  transition: all 0.3s;
  overflow: hidden;
}

.internship-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--sci-primary), transparent);
  transform: translateX(-100%);
  transition: transform 0.5s;
}

.internship-card:hover::before {
  transform: translateX(100%);
}

.internship-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--glow-box);
  border-color: var(--sci-primary);
}

.card-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: var(--space-3);
}

.card-header i {
  font-size: 1.5rem;
  color: var(--sci-secondary);
}

.card-header h3 {
  font-size: 1.1rem;
  color: var(--sci-text-main);
  margin: 0;
}

.internship-card .role {
  color: var(--sci-primary);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.internship-card .description {
  color: var(--sci-text-dim);
  font-size: 0.9rem;
  margin-bottom: var(--space-4);
  line-height: 1.5;
}