:root {
  --bg-color: #f4f5f6;
  --card-bg: #ffffff;
  --text-main: #121826;
  --text-muted: #64748b;
  --green-primary: #10b981;
  --green-light: #d1fae5;
  --green-dark: #047857;
  --green-accent: #22c55e;
  --border-color: #e2e8f0;
  --font-sans: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
  padding: 24px;
  background-image: radial-gradient(#cbd5e1 1px, transparent 1px);
  background-size: 20px 20px;
}

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

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 32px;
}

.logo,
.logo:link,
.logo:visited {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.5px;
  text-decoration: none;
  color: var(--text-main);
}

nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

nav a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

nav a.active {
  border-bottom: 2px solid var(--green-primary);
  padding-bottom: 4px;
}

.btn-connect {
  display: inline-flex;
  align-items: center;
  background-color: #a7f3d0;
  color: #064e3b;
  padding: 8px 18px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.2s;
}

.btn-connect:hover {
  background-color: #6ee7b7;
}

.card {
  background: var(--card-bg);
  border-radius: 12px;
  border: 1px solid var(--border-color);
  padding: 24px;
  margin-bottom: 20px;
}

.card-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  margin-bottom: 20px;
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #e6f4ea;
  border: 1px solid #a7f3d0;
  color: var(--green-dark);
  padding: 4px 12px;
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.status-dot {
  width: 6px;
  height: 6px;
  background-color: var(--green-primary);
  border-radius: 50%;
}

.page-header {
  margin-bottom: 24px;
}

.page-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.page-title span {
  color: var(--green-dark);
}

.page-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 680px;
}

.grid-2,
.grid-bottom,
.grid-top,
.grid-middle,
.grid-career-deployments {
  display: grid;
  gap: 20px;
  margin-bottom: 20px;
}

.grid-2 {
  grid-template-columns: 1.2fr 0.8fr;
}

.grid-bottom {
  grid-template-columns: 1fr 1fr;
}

.grid-top {
  grid-template-columns: 1fr 1.6fr;
}

.grid-middle {
  grid-template-columns: 1.1fr 1.1fr 0.8fr;
}

.grid-career-deployments {
  grid-template-columns: 1.5fr 0.6fr 0.9fr;
}

.hero {
  padding: 10px 0;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.hero h1 span {
  color: var(--green-dark);
}

.hero p {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 520px;
  margin-bottom: 32px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  align-items: center;
}

.btn-primary,
.btn-secondary {
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background-color: #86efac;
  color: #064e3b;
  padding: 10px 20px;
}

.btn-secondary {
  background: transparent;
  border: 1px dashed #cbd5e1;
  color: var(--text-main);
  padding: 10px 20px;
}

.showcase-card {
  background: var(--card-bg);
  border-radius: 12px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.showcase-image {
  width: 100%;
  height: 240px;
  background-color: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-color);
}

.showcase-content {
  padding: 20px;
  text-align: center;
}

.showcase-content h3 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

.showcase-content p {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-top: 4px;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.stack-item {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px 8px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  background-color: #fafafa;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.stack-item svg {
  width: 18px;
  height: 18px;
  stroke: var(--green-dark);
}

.stack-footer {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}

.timeline-item {
  margin-bottom: 20px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  float: left;
  width: 80px;
  font-weight: 600;
}

.timeline-content {
  margin-left: 80px;
}

.timeline-role {
  font-weight: 700;
  font-size: 0.85rem;
}

.timeline-desc {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-top: 2px;
}

.algo-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.algo-icon {
  background-color: #e6f4ea;
  padding: 12px;
  border-radius: 50%;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.algo-count {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 800;
}

.algo-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-top: 2px;
}

.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.project-card {
  background-color: #fafafa;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.project-icon {
  color: var(--green-dark);
  width: 22px;
  height: 22px;
}

.tag-group {
  display: flex;
  gap: 6px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

.tag.python {
  background-color: #e6f4ea;
  color: #064e3b;
  border-color: #a7f3d0;
}

.tag.django {
  background-color: #e2e8f0;
  color: #1e293b;
}

.tag.golang {
  background-color: #e0f2fe;
  color: #075985;
  border-color: #bae6fd;
}

.tag.fastapi {
  background-color: #faf5ff;
  color: #6b21a8;
  border-color: #f5d0fe;
}

.tag.docker {
  background-color: #eff6ff;
  color: #1e40af;
  border-color: #bfdbfe;
}

.project-name-group {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.project-card .project-name {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.project-description {
  color: var(--text-muted);
  font-size: 0.825rem;
  line-height: 1.5;
  margin-bottom: 16px;
  min-height: 48px;
}

.tech-stack-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
  letter-spacing: 0.5px;
}

.tech-stack-list {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-main);
  font-weight: 600;
}

.project-footer {
  margin-top: 20px;
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
  display: flex;
  justify-content: flex-end;
}

.btn-source,
.cert-link,
.dark-link {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--green-dark);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: opacity 0.2s;
}

.btn-source:hover,
.cert-link:hover,
.dark-link:hover {
  opacity: 0.8;
}

.degree-grid {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 24px;
  align-items: center;
}

.degree-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.degree-school {
  color: var(--green-dark);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.degree-meta {
  display: flex;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.degree-badge {
  background-color: #fafafa;
  border: 1px dashed var(--border-color);
  border-radius: 8px;
  height: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 12px;
}

.degree-badge svg {
  stroke: var(--green-dark);
  margin-bottom: 6px;
}

.degree-badge span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text-muted);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.cert-card {
  background: #fafafa;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.cert-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.cert-tag {
  background: #e6f4ea;
  color: var(--green-dark);
  border: 1px solid #a7f3d0;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}

.cert-id {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
}

.cert-name,
.cert-title {
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.cert-issuer {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.cert-link {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--green-dark);
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.list-item {
  margin-bottom: 14px;
}

.list-item:last-child {
  margin-bottom: 0;
}

.list-title,
.edu-degree {
  font-weight: 700;
  font-size: 0.9rem;
}

.list-sub,
.edu-school,
.cert-list,
.project-tech {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.cert-section-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-main);
  margin-bottom: 8px;
}

.cert-list {
  list-style-type: disc;
  padding-left: 16px;
}

.metric-row {
  margin-bottom: 16px;
}

.metric-header {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  margin-bottom: 6px;
}

.progress-bar {
  width: 100%;
  height: 6px;
  background-color: #e2e8f0;
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background-color: var(--green-dark);
}

.project-item {
  margin-bottom: 16px;
}

.project-item:last-child {
  margin-bottom: 0;
}

.project-item .project-name {
  font-weight: 700;
  font-size: 0.85rem;
}

.project-tech {
  font-size: 0.75rem;
}

.link-action {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--green-dark);
  text-decoration: none;
  font-weight: 700;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.card-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 700;
}

.card-title-secondary {
  font-size: 1.1rem;
  font-weight: 800;
  margin-top: 2px;
}

.tag-operational {
  background-color: #d1fae5;
  color: #047857;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.syntax-list,
.persistence-list,
.arch-list,
.frameworks-grid,
.devops-pills {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.syntax-item,
.framework-item,
.devops-pills,
.persistence-item,
.terminal-box,
.code-preview-box,
.dark-card {
  border-radius: 8px;
}

.syntax-item {
  background-color: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.syntax-name {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
}

.syntax-level {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--green-dark);
}

.frameworks-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.framework-item h4 {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.framework-item p {
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.4;
}

.persistence-list {
  gap: 16px;
  margin-top: 8px;
}

.persistence-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.persistence-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.persistence-name {
  display: flex;
  align-items: center;
  gap: 8px;
}

.persistence-percent {
  font-size: 0.65rem;
  color: var(--text-muted);
}

.devops-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.pill {
  background-color: #f1f5f9;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 4px;
}

.code-preview-box {
  background-color: #fafafa;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 24px;
}

.arch-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.arch-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
}

.check-icon {
  color: var(--green-dark);
  width: 14px;
  height: 14px;
}

.arch-quote {
  background-color: #f0fdf4;
  border-left: 3px solid var(--green-primary);
  padding: 10px 12px;
  border-radius: 0 6px 6px 0;
}

.quote-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 800;
  color: var(--green-dark);
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}

.quote-text {
  font-size: 0.75rem;
  font-style: italic;
  color: var(--text-muted);
}

.dark-card {
  background-color: #0f172a;
  color: #ffffff;
  border-radius: 12px;
  padding: 24px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.dark-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: rgba(34, 197, 94, 0.15);
  color: #4ade80;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.dark-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #ffffff;
}

.dark-desc {
  color: #94a3b8;
  font-size: 0.85rem;
  max-width: 520px;
  margin-bottom: 16px;
}

.dark-links {
  display: flex;
  gap: 16px;
}

.dark-link {
  color: #64748b;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: color 0.2s;
}

.dark-link:hover {
  color: #ffffff;
}

.solved-counter {
  text-align: right;
}

.solved-num {
  font-family: var(--font-mono);
  font-size: 2.8rem;
  font-weight: 800;
  color: #22c55e;
  line-height: 1;
}

.solved-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: #64748b;
  letter-spacing: 1px;
  font-weight: 700;
  margin-top: 4px;
}

.solved-sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: #475569;
  margin-top: 2px;
}

.bars-graphic {
  display: flex;
  gap: 4px;
  justify-content: flex-end;
  margin-top: 10px;
}

.bar-item {
  width: 4px;
  background-color: #22c55e;
  border-radius: 2px;
  opacity: 0.4;
}

.bar-item.active {
  opacity: 1;
}

.terminal-box {
  background-color: #e2e8f0;
  border-radius: 6px;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #475569;
  line-height: 1.6;
  margin-bottom: 24px;
}

footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 40px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

footer a {
  color: var(--text-muted);
  text-decoration: none;
  margin-left: 16px;
}

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

@media (max-width: 900px) {
  .grid-2,
  .grid-career-deployments,
  .grid-bottom,
  .degree-grid,
  .cert-grid,
  .grid-top,
  .grid-middle,
  .frameworks-grid {
    grid-template-columns: 1fr;
  }

  .stack-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .dark-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .solved-counter {
    text-align: left;
  }
}