/* General styles */
:root {
  --text-primary: #333;
  --text-secondary: #555;
  --background-primary: #fff;
  --accent-color: #007aff;
  --border-color: #e5e5e5;
  --header-height: 80px;
  --font-family-base: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-heading: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

body {
  font-family: var(--font-family-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background-primary);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  width: 100%;
  margin: 0 auto;
  padding: 0;
  box-sizing: border-box;
}

.container > header {
  width: 60vw;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.container > main,
.container > footer {
  width: min(90vw, 1200px);
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

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

a:hover {
  text-decoration: underline;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4, h5, h6 { font-size: 1.25rem; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.3;
  margin-top: 2em;
  margin-bottom: 0.5em;
}

/* Header */
header {
  height: var(--header-height);
  display: flex;
  justify-content: center;
}

header nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  width: 60vw;
  padding: 0 20px;
  box-sizing: border-box;
  border-bottom: 1px solid var(--border-color);
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 100%;
  color: var(--text-primary);
}

.nav-logo:hover {
  text-decoration: none;
}

header nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 20px;
}

/* Main content */
main {
  padding: 40px 0;
}

/* Footer */
footer {
  text-align: center;
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

footer p {
  margin: 0;
}

footer a {
  color: var(--text-secondary);
}

/* New Homepage Styles */
.intro-section {
  display: flex;
  align-items: center;
  padding: 40px 0;
  gap: 40px;
  flex-wrap: wrap;
}

.intro-text {
  flex: 1 1 360px;
  min-width: 0;
}

.intro-text h1 {
  margin-top: 0;
  font-size: 3rem;
  font-weight: 700;
}

.intro-text .subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
}

.intro-description {
  margin-top: 1.2rem;
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.contact-links {
  margin-top: 20px;
}

.contact-links a {
  margin-right: 15px;
  font-weight: 600;
}

.intro-image img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
}

.intro-image {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
  min-width: 150px;
}

.content-section {
  padding: 20px 0;
  border-top: 1px solid var(--border-color);
}

.content-section h2 {
  margin-top: 0;
}

/* Timeline */
.timeline-track {
  position: relative;
  margin-top: 30px;
  --timeline-padding: 44px;
  --timeline-line-left: 14px;
  --timeline-line-width: 3px;
  --timeline-marker-diameter: 18px;
  padding-left: var(--timeline-padding);
}

.timeline-track::before {
  content: "";
  position: absolute;
  left: var(--timeline-line-left);
  top: 4px;
  bottom: 4px;
  width: var(--timeline-line-width);
  background: linear-gradient(180deg, rgba(0, 122, 255, 0.45), rgba(0, 122, 255, 0));
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 28px;
  margin-bottom: 48px;
}

.timeline-marker {
  position: absolute;
  top: 10px;
  left: calc(
    var(--timeline-line-left) - var(--timeline-padding) +
    (var(--timeline-line-width) / 2) -
    (var(--timeline-marker-diameter) / 2)
  );
  width: var(--timeline-marker-diameter);
  height: var(--timeline-marker-diameter);
  border-radius: 50%;
  background: linear-gradient(135deg, #007aff, #4fb6ff);
  box-shadow: 0 0 0 6px rgba(0, 122, 255, 0.15);
  animation: pulse 6s ease-in-out infinite;
}

.timeline-date {
  font-weight: 600;
  color: var(--text-secondary);
  padding-top: 6px;
}

.timeline-body {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 14px;
  padding: 18px 22px;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

.timeline-body h3 {
  margin-top: 0;
  font-size: 1.3rem;
}

.timeline-body p {
  margin-top: 0.6rem;
}

.timeline-body p:first-of-type {
  margin-top: 0.3rem;
}

.timeline-organization {
  font-style: italic;
  color: var(--text-secondary);
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(0, 122, 255, 0.15);
  }
  50% {
    transform: scale(1.1);
    box-shadow: 0 0 0 10px rgba(0, 122, 255, 0.1);
  }
}

/* Skills */
.skills-intro {
  max-width: 660px;
  color: var(--text-secondary);
}

.skills-infographic {
  margin-top: 32px;
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.skills-card {
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.12);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.skills-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 28px 50px rgba(15, 23, 42, 0.16);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(0, 122, 255, 0.15), rgba(0, 122, 255, 0.35));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: #0052a3;
  box-shadow: inset 0 0 0 1px rgba(0, 122, 255, 0.25);
  animation: float 8s ease-in-out infinite;
}

.skills-card p {
  margin: 0;
  color: var(--text-secondary);
}

.skill-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-badge {
  --badge-surface: #ffffff;
  --badge-border: rgba(15, 23, 42, 0.12);
  --badge-text: #0f172a;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--badge-surface);
  border: 1px solid var(--badge-border);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
  color: var(--badge-text);
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.skill-badge img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.skill-name {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.skill-badge:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.16);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

.skill-python { --badge-surface: rgba(55, 118, 171, 0.15); --badge-border: rgba(55, 118, 171, 0.35); --badge-text: #0b1f33; }
.skill-cpp { --badge-surface: rgba(0, 89, 156, 0.14); --badge-border: rgba(0, 68, 130, 0.35); }
.skill-javascript { --badge-surface: rgba(247, 223, 30, 0.22); --badge-border: rgba(240, 180, 0, 0.38); --badge-text: #3c2a00; }
.skill-pytorch { --badge-surface: rgba(238, 76, 44, 0.16); --badge-border: rgba(238, 76, 44, 0.4); }
.skill-nemo { --badge-surface: rgba(118, 185, 0, 0.18); --badge-border: rgba(118, 185, 0, 0.36); --badge-text: #0c1a00; }
.skill-huggingface { --badge-surface: rgba(255, 204, 77, 0.22); --badge-border: rgba(255, 157, 77, 0.4); --badge-text: #3a2200; }
.skill-spacy { --badge-surface: rgba(9, 163, 213, 0.16); --badge-border: rgba(9, 163, 213, 0.36); }
.skill-langchain { --badge-surface: rgba(10, 92, 74, 0.18); --badge-border: rgba(28, 193, 141, 0.36); --badge-text: #0a2f26; }
.skill-langgraph { --badge-surface: rgba(60, 47, 128, 0.18); --badge-border: rgba(60, 47, 128, 0.36); }
.skill-llamaindex { --badge-surface: rgba(255, 111, 97, 0.18); --badge-border: rgba(255, 111, 97, 0.36); }
.skill-ragas { --badge-surface: rgba(29, 151, 108, 0.18); --badge-border: rgba(29, 151, 108, 0.36); --badge-text: #053321; }
.skill-vllm { --badge-surface: rgba(59, 130, 246, 0.18); --badge-border: rgba(147, 51, 234, 0.32); }
.skill-docker { --badge-surface: rgba(13, 183, 237, 0.16); --badge-border: rgba(6, 109, 165, 0.36); }
.skill-kubernetes { --badge-surface: rgba(50, 108, 229, 0.16); --badge-border: rgba(50, 108, 229, 0.36); }
.skill-ecs { --badge-surface: rgba(255, 153, 0, 0.2); --badge-border: rgba(255, 153, 0, 0.4); --badge-text: #4d2e00; }
.skill-kubeflow { --badge-surface: rgba(0, 125, 174, 0.18); --badge-border: rgba(0, 125, 174, 0.38); }
.skill-bedrock { --badge-surface: rgba(35, 47, 62, 0.16); --badge-border: rgba(255, 153, 0, 0.38); --badge-text: #101722; }
.skill-sagemaker { --badge-surface: rgba(27, 127, 121, 0.16); --badge-border: rgba(27, 127, 121, 0.36); }
.skill-vertex { --badge-surface: rgba(66, 133, 244, 0.16); --badge-border: rgba(15, 157, 88, 0.28); }
.skill-bigquery { --badge-surface: rgba(67, 133, 244, 0.16); --badge-border: rgba(42, 86, 198, 0.34); }
.skill-postgres { --badge-surface: rgba(51, 103, 145, 0.18); --badge-border: rgba(29, 77, 109, 0.34); }
.skill-firestore { --badge-surface: rgba(255, 179, 0, 0.2); --badge-border: rgba(245, 124, 0, 0.38); --badge-text: #4d2c00; }
.skill-redis { --badge-surface: rgba(216, 44, 32, 0.2); --badge-border: rgba(216, 44, 32, 0.4); --badge-text: #3f0a05; }
.skill-chromadb { --badge-surface: rgba(111, 76, 255, 0.18); --badge-border: rgba(111, 76, 255, 0.36); }
.skill-faiss { --badge-surface: rgba(31, 41, 51, 0.16); --badge-border: rgba(74, 85, 104, 0.34); --badge-text: #111827; }
.skill-flask { --badge-surface: rgba(0, 0, 0, 0.08); --badge-border: rgba(75, 85, 99, 0.3); --badge-text: #111111; }
.skill-sanic { --badge-surface: rgba(69, 176, 229, 0.18); --badge-border: rgba(28, 140, 214, 0.36); }
.skill-sqlalchemy { --badge-surface: rgba(244, 67, 54, 0.18); --badge-border: rgba(198, 40, 40, 0.36); }
.skill-alembic { --badge-surface: rgba(121, 85, 72, 0.2); --badge-border: rgba(169, 130, 116, 0.4); --badge-text: #3f2519; }
.skill-angular { --badge-surface: rgba(221, 0, 49, 0.18); --badge-border: rgba(195, 0, 47, 0.36); }

@media (max-width: 1024px) {
  .intro-section {
    flex-direction: column;
    text-align: center;
    gap: 24px;
  }

  .intro-text {
    flex: 1 1 auto;
    max-width: 640px;
    width: 100%;
    margin: 0 auto;
  }

  .intro-image {
    order: -1;
    margin-bottom: 20px;
  }

  .intro-description {
    text-align: left;
  }
}

@media (max-width: 720px) {
  .timeline-track {
    --timeline-padding: 32px;
    --timeline-line-left: 10px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 40px;
  }

  .timeline-date {
    padding-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .card-icon,
  .timeline-marker,
  .skill-badge {
    animation: none;
    transition: none;
  }

  .skills-card:hover,
  .skill-badge:hover {
    transform: none;
    box-shadow: 0 20px 45px rgba(15, 23, 42, 0.12);
  }
}

/* Publications, Projects, Certifications, Awards */
.publications-list,
.projects-list,
#certifications ul,
#awards ul {
  list-style: none;
  padding-left: 0;
}

.publications-list li,
.projects-list li,
#certifications li,
#awards li {
  margin-bottom: 15px;
}

/* Home layout */
.home-container {
  width: 100%;
  max-width: 60vw;
  margin: 0 auto;
  padding: 0 1.5rem;
  box-sizing: border-box;
}

/* Blog styles */
.home-container {
  width: 100%;
  max-width: 60vw;
  margin: 0 auto;
  padding: 0 1.5rem;
  box-sizing: border-box;
}

.blog-container {
  width: 100%;
  max-width: 60vw;
  margin: 0 auto;
  padding: 0 1.5rem;
  box-sizing: border-box;
}

.blog-list {
  list-style: none;
  padding: 0;
}

.blog-list-item {
  margin-bottom: 40px;
}

.blog-list-item h2 {
  margin-top: 0;
  font-size: 1.5rem;
}

.blog-list-item h2 a {
  color: var(--text-primary);
}

.blog-list-item .post-meta {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

/* Blog Post */
.post-header {
  margin-bottom: 40px;
}

.post-header h1 {
  margin-top: 0;
  font-size: 2rem;
}

.post-content {
  font-size: 1rem;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.post-content img,
.post-content svg,
.post-content canvas,
.post-content iframe,
.post-content video {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.5rem auto;
}

.post-content figure {
  margin: 1.5rem auto;
}

.post-content pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 1.2rem;
  border-radius: 8px;
  background: #f5f7fa;
  box-sizing: border-box;
}

.post-content pre code {
  white-space: pre-wrap;
  word-break: break-word;
}

.post-content code {
  font-size: 0.95rem;
}

.post-content mjx-container {
  overflow-x: auto;
  max-width: 100%;
}

.post-content mjx-container[display="true"] {
  display: flex;
  justify-content: center;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  overflow-x: auto;
  display: block;
}

.post-content table td,
.post-content table th {
  padding: 0.75rem 1rem;
  border: 1px solid #e0e0e0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .home-container,
  .blog-container {
    width: 100%;
    max-width: 100%;
    padding: 0 1.25rem;
  }
}
.container > main {
  padding-top: 40px;
  padding-bottom: 40px;
}

body.post-page .container > main,
body.blogs-page .container > main,
body.home-page .container > main {
  width: 100%;
  padding-left: 0;
  padding-right: 0;
}