:root {
  --color-bg-primary: #0d1117;
  --color-bg-secondary: #161b22;
  --color-bg-tertiary: #21262d;
  --color-text-primary: #c9d1d9;
  --color-text-secondary: #8b949e;
  --color-text-muted: #6e7681;
  --color-border: #30363d;
  --color-accent: #4a9eff;
  --color-accent-hover: #6cb3ff;
  --color-success: #3fb950;
  --color-warning: #d29922;
  --color-error: #f85149;
  
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

[data-theme="light"] {
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f6f8fa;
  --color-bg-tertiary: #eaeef2;
  --color-text-primary: #1f2328;
  --color-text-secondary: #57606a;
  --color-text-muted: #8c959f;
  --color-border: #d0d7de;
  --color-accent: #0969da;
  --color-accent-hover: #0550ae;
  --color-success: #1a7f37;
  --color-warning: #9a6700;
  --color-error: #cf222e;
  
  --shadow-sm: 0 1px 2px rgba(31, 35, 40, 0.04);
  --shadow-md: 0 3px 6px rgba(31, 35, 40, 0.08);
  --shadow-lg: 0 8px 24px rgba(31, 35, 40, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

#main-content {
  flex: 1;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background-color: var(--color-bg-secondary);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
}

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

p {
  margin-bottom: 1rem;
}

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

a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: white;
  text-decoration: none;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-bg-tertiary);
  text-decoration: none;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  border-radius: var(--radius-sm);
}

.badge-infrastructure {
  background-color: rgba(74, 158, 255, 0.15);
  color: var(--color-accent);
}

.badge-data {
  background-color: rgba(63, 185, 80, 0.15);
  color: var(--color-success);
}

.badge-ml {
  background-color: rgba(210, 153, 34, 0.15);
  color: var(--color-warning);
}

.badge-devops {
  background-color: rgba(248, 81, 73, 0.15);
  color: var(--color-error);
}

.page-header {
  padding: 4rem 0 2rem;
  background-color: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  text-align: right;
}

.page-title {
  margin-bottom: 1rem;
  text-align: right;
}

.page-description {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  max-width: none;
  text-align: right;
  white-space: pre-line;
}

.page-header .pixel-underline::after {
  left: auto;
  right: 0;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: var(--color-text-secondary);
}

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

.section-title {
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

.section-subtitle {
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}

.section-cta {
  margin-top: 2rem;
  text-align: center;
}

.hidden {
  display: none !important;
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
  
  .section {
    padding: 2.5rem 0;
  }
  
  .container {
    padding: 0 1rem;
  }
}

.hero {
  padding: 6rem 0;
  background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-title {
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  display: flex;
  flex-direction: column;
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-text-secondary);
}

.hero-description {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

.hero-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: var(--color-accent);
  opacity: 0.6;
}

.profile-image-wrapper {
  display: flex;
  justify-content: center;
}

.profile-image-wrapper img {
  max-width: 40% !important;
  max-height: 40% !important;
  clip-path: circle() !important;
  object-fit: cover !important;
  object-position: center top !important;
  border: 3px solid var(--color-accent) !important;
  box-shadow: var(--shadow-md) !important;
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-grid {
  display: grid;
  grid-template-columns: repeat(3, 40px);
  gap: 8px;
}

.pixel-block {
  width: 40px;
  height: 40px;
  background-color: var(--color-accent);
  opacity: 0.8;
}

.pixel-block:nth-child(2) {
  opacity: 0.8;
}

.pixel-block:nth-child(3) {
  opacity: 0.8;
}

.hero-stats {
  max-width: 1200px;
  margin: 3rem auto 0;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.stat-item {
  text-align: center;
  padding: 1.5rem;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.about-content {
  max-width: 700px;
}

.about-content .lead {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
}

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

blockquote p {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

blockquote cite {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-style: normal;
}

.story-content {
  max-width: 90%;
  text-align: right;
  margin-left: auto;
}

.story .section-title {
  display: block;
  text-align: right;
}

.story .pixel-underline::after {
  left: auto;
  right: 0;
}

.page-header {
  padding: 4rem 0 2rem;
  background-color: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  text-align: right;
}

.page-header .page-title {
  margin-bottom: 1rem;
}

.page-header .page-description {
  color: var(--color-text-secondary);
  font-size: 1rem;
  max-width: none;
  text-align: right;
}

.page-header .pixel-underline::after {
  left: auto;
  right: 0;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.skill-category {
  min-height: 200px;
  display: flex;
  flex-direction: column;
}

.skill-category p {
  flex: 1;
}

.skill-category {
  padding: 1.5rem;
  min-height: 180px;
  display: flex;
  flex-direction: column;
}

.skill-category p {
  flex: 1;
}

.skill-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.skill-category h3 {
  margin-bottom: 0.75rem;
}

.skill-category p {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0;
}

.newsletter-box {
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem;
  text-align: center;
}

.newsletter-box h2 {
  margin-bottom: 0.5rem;
}

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

.newsletter-form {
  display: flex;
  gap: 0.75rem;
  max-width: 400px;
  margin: 0 auto;
}

.newsletter-form .form-input {
  flex: 1;
}

@media (max-width: 768px) {
  .hero {
    padding: 3rem 0;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .avatar-grid {
    grid-template-columns: repeat(3, 30px);
    gap: 6px;
  }
  
  .pixel-block {
    width: 30px;
    height: 30px;
  }
  
  .newsletter-form {
    flex-direction: column;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }
}
/* Resume UI improvements: Education as cards and Skills as chips */
.education { display: grid; gap: 12px; padding: 12px 0; }
.edu-item { padding: 16px; border-left: 4px solid var(--color-accent); border-radius: 6px; background: var(--color-bg-secondary); border: 1px solid var(--color-border); }
.edu-degree { font-weight: 700; color: var(--color-text-primary); font-size: 1.1rem; margin-bottom: 4px; }
.edu-meta { color: var(--color-text-secondary); font-size: 0.95em; margin-bottom: 2px; }
.edu-year { color: var(--color-text-muted); font-size: 0.9em; }

.skill-chip { display: inline-flex; padding: 6px 12px; border-radius: 999px; background: rgba(74, 158, 255, 0.1); border: 1px solid var(--color-border); color: var(--color-text-primary); font-size: 0.9em; transition: all var(--transition-fast); }
.skill-chip:hover { background: rgba(74, 158, 255, 0.2); border-color: var(--color-accent); }

.skill-group { margin-bottom: 20px; }
.skill-group h3 { font-size: 0.95rem; color: var(--color-accent); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.05em; }

.resume-summary { background: var(--color-bg-secondary); }
.summary-card { padding: 2rem; }
.summary-text { line-height: 1.8; color: var(--color-text-secondary); }

.spotify-embed { width: 100%; margin-top: 1.5rem; }
/* New card styles for clean UI blocks */
.spotify-card { padding: 1rem; border-radius: 8px; background: var(--color-bg-secondary); border: 1px solid var(--color-border); box-shadow: var(--shadow-sm); margin-top: 1rem; }
.education-card { margin-bottom: 12px; }
.experience-card { padding: 12px; border-left: 4px solid var(--color-accent); border-radius: 6px; background: var(--color-bg-secondary); border: 1px solid var(--color-border); margin-bottom: 12px; }
.skills-card { padding: 12px; border-left: 4px solid var(--color-accent); border-radius: 6px; background: var(--color-bg-secondary); border: 1px solid var(--color-border); }
.resume-sidebar { margin-bottom: 1.5rem; }
.resume-sidebar .skill-group { margin-bottom: 1rem; }
.spotify-stat .stat-label { text-align: center; margin-top: 6px; color: var(--color-text-secondary); }

.spotify-stat {
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    height: 100%;
}

.spotify-embed-responsive {
    width: 100%;
    aspect-ratio: 16 / 9;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    flex: 1;
    min-height: 0;
}

.spotify-embed-responsive iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: 8px;
}

/* Skills Grid with Mini-Cards */
.skills-grid-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.skill-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 1rem;
}

.skill-card h3 {
    font-size: 0.8rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
    text-align: center;
}

.skill-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.skill-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.skill-item {
    text-align: center;
    padding: 0.25rem 0.5rem;
}

.skill-name {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-primary);
}

.skill-years {
    display: block;
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

.skill-card li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* Profile/Education Grid */
.profile-education-grid {
    display: grid;
    grid-template-columns: 25% 75%;
    gap: 1rem;
    margin-bottom: 1.5rem;
    align-items: stretch;
}

/* Profile Section */
.profile-section {
    grid-column: 2;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.profile-section h2 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

.profile-card {
    padding: 1rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    border-left: 4px solid var(--color-accent);
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.profile-card .profile-scroll {
    overflow-y: auto;
    flex: 1;
}

.profile-card p {
    color: var(--color-text-primary);
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: 0;
    white-space: pre-line;
}

/* Education Section */
.education-section {
    grid-column: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    margin-bottom: 1.5rem;
}

.education-section h2 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

.edu-card {
    padding: 1rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    border-left: 4px solid var(--color-accent);
    display: flex;
    flex-direction: column;
    height: 100%
}

.edu-card img {
    width: 100%;
    height: auto;
    border-radius: 4px;
    margin-bottom: 0.75rem;
    flex-shrink: 0;
}

.edu-degree {
    font-weight: 600;
    color: var(--color-text-primary);
    font-size: 0.95rem;
}

.edu-meta {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.edu-year {
    color: var(--color-text-muted);
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

/* Skills Section */
.skills-section h2 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

/* Experience Section */
.resume-main h2 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
}

/* Experience Cards */
.experience-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    border-left: 4px solid var(--color-accent);
}

.experience-header {
    margin-bottom: 0.75rem;
}

.job-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
}

.job-meta {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.job-meta.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 0;
  margin: 0;
  align-items: center;
}
.job-meta.grid-2col .col {
  display: flex;
  flex-direction: column;
}
.job-meta.grid-2col .job-role {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text-primary);
}

.job-meta.grid-2col .job-years {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}
.job-meta.grid-2col .job-company {
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text-primary);
}
.job-meta.grid-2col .job-location {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.experience-highlights {
    padding-left: 1.25rem;
    margin: 0;
}

.experience-highlights li {
    font-size: 0.875rem;
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
}

.experience-highlights li::marker {
    color: var(--color-text-primary);
}

/* Mobile responsive */
@media (max-width: 768px) {
    .skills-grid-cards {
        grid-template-columns: 1fr;
    }

    /* Stack profile-education grid: education above profile */
    .profile-education-grid {
        grid-template-columns: 1fr;
    }

    .education-section {
        grid-column: 1;
        order: 1;
    }

    .profile-section {
        grid-column: 1;
        order: 2;
    }
}

/* Footer */
.footer {
    padding-top: 1.5rem;
}

.footer-title {
    margin-bottom: 0.75rem;
}

.footer-section {
    margin-bottom: 1rem;
}

.footer-copyright,
.footer-built {
    margin-bottom: 0.5rem;
}

/* Print styles */
@media print {
    nav,
    footer,
    .newsletter,
    .pixel-avatar,
    .hero-actions,
    .filter-controls,
    .expand-btn,
    .modal-overlay {
        display: none !important;
    }

    body {
        background: white !important;
        color: black !important;
    }

    .container {
        max-width: 100% !important;
        padding: 0 !important;
    }

    .section {
        padding: 1rem 0 !important;
    }

    a {
        color: black !important;
        text-decoration: underline !important;
    }

    .pixel-card,
    .skill-category,
    .newsletter-box,
    .experience-card,
    .edu-card {
        border: 1px solid #ccc !important;
        box-shadow: none !important;
        background: white !important;
    }
}