:root {
  /* Colors */
  --bg-color: #0a0a0c;
  --bg-secondary: #111114;
  --text-primary: #f5f5f7;
  --text-secondary: #a1a1aa;
  --accent-color: #00f2ff;
  /* Cyan */
  --accent-hover: #00c8d4;
  --accent-secondary: #00f2ff;
  /* Cyan */
  --card-bg: rgba(255, 255, 255, 0.02);
  --border-color: rgba(255, 255, 255, 0.08);

  /* Fonts */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --container-width: 1200px;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme */
body.light-theme {
  --bg-color: #f5f5f7;
  --bg-secondary: #e8e8ec;
  --text-primary: #1a1a1c;
  --text-secondary: #52525b;
  --accent-color: #0891b2;
  --accent-hover: #0e7490;
  --accent-secondary: #0891b2;
  --card-bg: rgba(0, 0, 0, 0.03);
  --border-color: rgba(0, 0, 0, 0.1);
}

body.light-theme .background-grid {
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    radial-gradient(circle at 50% 0%, rgba(8, 145, 178, 0.08), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(8, 145, 178, 0.04), transparent 50%);
}

body.light-theme .navbar {
  background: rgba(245, 245, 247, 0.85);
}

body.light-theme .card-image {
  background: #e8e8ec;
}

body.light-theme .image-modal-backdrop {
  background: rgba(245, 245, 247, 0.8);
}

body.light-theme .image-modal-panel {
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.03), rgba(0, 0, 0, 0.01)), rgba(245, 245, 247, 0.98);
}

body.light-theme .hamburger span {
  background-color: var(--text-primary);
}

body.light-theme .nav-links.active {
  background: rgba(245, 245, 247, 0.98);
}

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

html {
  scroll-behavior: smooth;
}

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

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

ul {
  list-style: none;
}

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

/* Utilities */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary));
  border-radius: 2px;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-medium);
}

.btn-primary {
  background: var(--accent-color);
  color: #000;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--accent-color);
  color: var(--accent-color);
  margin-left: 1rem;
}

.btn-secondary:hover {
  background: rgba(0, 242, 255, 0.1);
  transform: translateY(-2px);
}

.btn-outline {
  border: 1px solid var(--text-secondary);
  color: var(--text-secondary);
}

.btn-outline:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
}

.highlight {
  color: var(--accent-color);
}

/* Background Grid */
.background-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    radial-gradient(circle at 50% 0%, rgba(0, 242, 255, 0.1), transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(0, 242, 255, 0.05), transparent 50%);
  background-size: 50px 50px, 50px 50px, 100% 100%, 100% 100%;
  pointer-events: none;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1.5rem 0;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: -1px;
}

.logo .dot {
  color: var(--accent-color);
}

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

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

.nav-links a:hover {
  color: var(--accent-color);
}

.highlight {
  color: var(--accent-color) !important;
}

.theme-toggle {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.2rem;
  margin-left: 2rem;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background-color: var(--text-primary);
  transition: var(--transition-medium);
}

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

.hero-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
}

.hero-content {
  flex: 0 1 42%;
  max-width: 560px;
}

.hero-visual {
  flex: 0 1 58%;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  max-width: 960px;
}

.hero-image-trigger {
  appearance: none;
  border: none;
  background: transparent;
  padding: 0;
  cursor: zoom-in;
  display: block;
  width: 100%;
  max-width: 900px;
}

.hero-image {
  width: 100%;
  max-width: 900px;
  height: auto;
  border-radius: 24px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.1);
  animation: float 6s ease-in-out infinite;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.hero-image-trigger:hover .hero-image,
.hero-image-trigger:focus-visible .hero-image {
  transform: translateY(-4px) scale(1.7);
  box-shadow: 0 28px 56px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(0, 242, 255, 0.2);
}

.hero-image-trigger:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 8px;
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0px); }
}

.greeting {
  font-family: var(--font-mono);
  color: var(--accent-color);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.name {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1rem;
  background: linear-gradient(90deg, #fff, #a0a0a0);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.role {
  font-size: 2.5rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.bio-short {
  max-width: 600px;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  font-size: 1.1rem;
}

.image-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.image-modal.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.image-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 12, 0.8);
  backdrop-filter: blur(12px);
}

.image-modal-panel {
  position: relative;
  width: calc(100vw - 3rem);
  max-width: none;
  height: calc(100vh - 3rem);
  max-height: calc(100vh - 3rem);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border-radius: 28px;
  border: 1px solid var(--border-color);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
    rgba(10, 10, 12, 0.95);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.45);
}

.image-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 1.5rem 0.5rem;
}

.image-modal-eyebrow {
  color: var(--accent-color);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
}

.image-modal-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
}

.image-modal-close {
  appearance: none;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition-fast);
}

.image-modal-close:hover,
.image-modal-close:focus-visible {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background: rgba(0, 242, 255, 0.08);
}

.image-modal-body {
  padding: 1rem 1.5rem 1.5rem;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  min-height: 0;
}

.image-modal-media {
  flex: 1;
  min-width: 0;
  min-height: 0;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-modal-asset {
  width: 100%;
  max-width: 100%;
  max-height: 100%;
  height: auto;
  display: block;
  border-radius: 22px;
  object-fit: contain;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.image-modal-nav {
  appearance: none;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  cursor: pointer;
  flex: 0 0 auto;
  transition: var(--transition-fast);
}

.image-modal-nav:hover,
.image-modal-nav:focus-visible {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background: rgba(0, 242, 255, 0.08);
}

.image-modal-nav.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* About Section */
.about-section {
  padding: var(--spacing-lg) 0;
}

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

.about-text p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

.tech-stack h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
}

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

.tags li {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-family: var(--font-mono);
  color: var(--accent-color);
}

.img-placeholder {
  width: 100%;
  aspect-ratio: 1;
  background: var(--card-bg);
  border-radius: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 5rem;
  color: var(--border-color);
  border: 2px dashed var(--border-color);
}

/* Projects Section */
.projects-section {
  padding: var(--spacing-lg) 0;
}

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

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  transition: var(--transition-medium);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 10px 30px -15px rgba(0, 242, 255, 0.15);
  background: rgba(255, 255, 255, 0.04);
}

.card-image {
  height: 200px;
  background: #1a1a1a;
  display: flex;
  justify-content: center;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.card-icon {
  font-size: 3rem;
  color: var(--text-secondary);
}

.card-content {
  padding: 1.5rem;
}

.card-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.card-tag {
  color: var(--accent-color);
}

.card-date {
  color: var(--text-secondary);
}

.card-content h3 {
  margin-bottom: 0.8rem;
  font-size: 1.2rem;
}

.card-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.card-link {
  color: var(--accent-color);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-link:hover {
  gap: 0.8rem;
}

/* Gallery Section */
.gallery-section {
  padding: var(--spacing-lg) 0;
  text-align: center;
}

.section-subtitle {
  color: var(--text-secondary);
  margin-bottom: 3rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.gallery-item {
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  transition: transform var(--transition-medium), border-color var(--transition-medium), box-shadow var(--transition-medium);
  aspect-ratio: 1;
  background: var(--card-bg);
}

.gallery-item:hover,
.gallery-item:focus-within {
  transform: scale(1.02);
  border-color: var(--accent-color);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.18);
}

.gallery-image-trigger {
  appearance: none;
  border: none;
  background: transparent;
  padding: 0;
  width: 100%;
  height: 100%;
  cursor: zoom-in;
  display: block;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.gallery-image-trigger:hover img,
.gallery-image-trigger:focus-visible img {
  transform: scale(1.08);
}

.gallery-image-trigger:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 6px;
  border-radius: 14px;
}

.gallery-item.placeholder {
  aspect-ratio: 1;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 4px;
}

.center-btn {
  margin-top: 2rem;
}

/* Contact Section */
.contact-section {
  padding: var(--spacing-lg) 0;
  text-align: center;
  background: linear-gradient(to top, #000, transparent);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 2rem 0;
}

.social-links a {
  font-size: 2rem;
  color: var(--text-secondary);
}

.social-links a:hover {
  color: var(--accent-color);
  transform: scale(1.1);
}

.copyright {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 3rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-container {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
  }

  .hero-visual {
    display: none; /* Hide hero image on mobile */
  }

  .name {
    font-size: 2.5rem;
  }

  .role {
    font-size: 1.5rem;
  }

  .image-modal {
    padding: 1rem;
  }

  .image-modal-panel {
    width: calc(100vw - 1rem);
    height: calc(100vh - 1rem);
    max-height: calc(100vh - 1rem);
    border-radius: 22px;
  }

  .image-modal-header,
  .image-modal-body {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .image-modal-body {
    gap: 0.5rem;
  }

  .image-modal-nav {
    width: 42px;
    height: 42px;
  }

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

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 12, 0.98);
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    gap: 1.5rem;
    z-index: 999;
  }

  .nav-links.active {
    display: flex;
    animation: slideDown 0.3s ease forwards;
  }

  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .nav-links .theme-toggle {
    margin-left: 0;
    align-self: flex-start;
  }

  .hamburger {
    display: flex;
  }

  .hamburger.toggle span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
  }

  .hamburger.toggle span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.toggle span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .blog-post-container {
    padding: 100px 1rem 3rem;
  }

  .blog-title {
    font-size: 2rem;
  }
}

/* Blog Post Styles */
.blog-post-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 120px 2rem 4rem;
}

.blog-header {
  margin-bottom: 3rem;
  text-align: center;
}

.blog-title {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.2;
  background: linear-gradient(90deg, #fff, #a0a0a0);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.blog-meta {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  display: flex;
  justify-content: center;
  gap: 2rem;
  align-items: center;
}

.blog-content {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #d0d0d0;
}

.blog-content h2 {
  font-size: 2rem;
  margin-top: 3rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.blog-content h3 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--accent-color);
}

.blog-content p {
  margin-bottom: 1.5rem;
}

.blog-content ul,
.blog-content ol {
  margin-bottom: 1.5rem;
  padding-left: 2rem;
}

.blog-content li {
  margin-bottom: 0.5rem;
}

.blog-content a {
  color: var(--accent-color);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.blog-content a:hover {
  color: var(--accent-hover);
}

.blog-content img {
  border-radius: 8px;
  margin: 2rem 0;
  border: 1px solid var(--border-color);
}

.blog-content code {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent-secondary);
}

.blog-content pre {
  background: #1a1a1a;
  padding: 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-color);
}

.blog-content pre code {
  background: none;
  padding: 0;
  color: #e0e0e0;
}

.blog-content blockquote {
  border-left: 4px solid var(--accent-color);
  padding-left: 1.5rem;
  margin: 2rem 0;
  font-style: italic;
  color: var(--text-secondary);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

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