:root {
  color-scheme: dark;
  --bg: #0b0b0d;
  --bg-alt: #13141b;
  --surface: #171922;
  --ink: #f3f4f6;
  --muted: #b9bcc7;
  --accent: #e11d48;
  --accent-dark: #be123c;
  --accent-warm: #f97316;
  --line: #2a2d3a;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  --radius: 18px;
}

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

body {
  margin: 0;
  font-family: "Source Sans 3", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px circle at 15% -10%, rgba(225, 29, 72, 0.35), transparent 60%),
    radial-gradient(900px circle at 90% -5%, rgba(249, 115, 22, 0.25), transparent 55%),
    radial-gradient(800px circle at 50% 120%, rgba(220, 38, 38, 0.2), transparent 60%),
    var(--bg);
  line-height: 1.6;
}

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

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--accent-warm);
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main {
  flex: 1;
  padding: 40px 0 80px;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.content > * + * {
  margin-top: 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  border-radius: 999px;
  z-index: 10;
}

.skip-link:focus {
  left: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 9;
  backdrop-filter: blur(8px);
  background: rgba(11, 11, 13, 0.92);
  border-bottom: 1px solid rgba(42, 45, 58, 0.9);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  gap: 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.5px;
}

.brand-logo {
  height: 60px;
  max-height: 60px;
  width: auto;
  display: block;
}

.brand-text {
  color: var(--ink);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.nav {
  display: flex;
  gap: 18px;
  font-weight: 600;
  font-size: 0.95rem;
}

.nav a {
  padding: 6px 8px;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav a:hover {
  background: rgba(225, 29, 72, 0.2);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(17, 19, 24, 0.12);
}

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

.btn.ghost {
  border-color: var(--accent);
  color: #fff;
  background: rgba(225, 29, 72, 0.12);
}

.btn.small {
  padding: 10px 16px;
  font-size: 0.9rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-dark);
  margin: 0 0 12px;
}

h1,
h2,
h3,
h4 {
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  line-height: 1.2;
  margin: 0 0 12px;
}

h1 {
  font-size: clamp(2.4rem, 2.8vw, 3.4rem);
}

h2 {
  font-size: clamp(1.7rem, 2.1vw, 2.4rem);
}

h3 {
  font-size: 1.2rem;
}

.lead {
  font-size: 1.1rem;
  color: var(--muted);
  margin: 0 0 20px;
}

.hero {
  padding: 72px 0 48px;
}

.hero-intro {
  display: flex;
  align-items: center;
  gap: 40px;
}

.avatar-wrap {
  flex-shrink: 0;
}

.avatar {
  width: 240px;
  height: 240px;
  min-width: 240px;
  border-radius: 50%;
  border: 2px solid var(--line);
  object-fit: cover;
  object-position: center 20%;
  background: #0b0b0d;
}

.hero-copy {
  max-width: 560px;
}

.hero-copy h1 {
  font-size: clamp(1.8rem, 2.4vw, 2.6rem);
  margin-bottom: 4px;
}

.hero-role {
  color: var(--muted);
  margin: 0 0 16px;
  font-size: 0.95rem;
}

.hero-social {
  display: flex;
  gap: 16px;
  font-weight: 600;
  font-size: 0.95rem;
  margin-top: 16px;
}

.hero-social a {
  color: var(--muted);
  transition: color 0.2s ease;
}

.hero-social a:hover {
  color: var(--ink);
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}

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

.compact-list {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: grid;
  gap: 12px;
}

.compact-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.compact-list li::before {
  content: ">>";
  color: var(--accent);
  font-weight: 700;
}

.section {
  padding: 52px 0;
}

.section.alt {
  background: var(--bg-alt);
  border-top: 1px solid rgba(42, 45, 58, 0.8);
  border-bottom: 1px solid rgba(42, 45, 58, 0.8);
}

.section-heading {
  max-width: 600px;
  margin-bottom: 28px;
}

.card-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.post-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.post-card {
  display: grid;
  gap: 12px;
  padding: 20px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--surface);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.post-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.post-card h3,
.post-card p {
  margin: 0;
}

.post-card p {
  color: var(--muted);
}

.post-date {
  font-size: 0.85rem;
  color: var(--muted);
}

.callout {
  padding: 28px;
  border-radius: var(--radius);
  border: 1px dashed var(--accent);
  background: rgba(225, 29, 72, 0.08);
}

.empty-state {
  padding: 24px;
  border-radius: 14px;
  border: 1px dashed var(--line);
  background: rgba(23, 25, 34, 0.8);
  color: var(--muted);
}

.section-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 20px;
}

.post-list {
  display: grid;
  gap: 2px;
  margin-bottom: 20px;
}

.post-row {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  transition: color 0.15s ease;
}

.post-row:hover .post-title {
  color: var(--accent-warm);
}

.post-row .post-date {
  flex-shrink: 0;
  font-size: 0.85rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  min-width: 90px;
}

.post-title {
  font-weight: 600;
}

.all-posts-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
}

.all-posts-link:hover {
  color: var(--accent-warm);
}

.muted {
  color: var(--muted);
}

.cert-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 16px;
}

.cert-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.cert-name {
  font-weight: 600;
}

.cert-date,
.cert-area {
  font-size: 0.85rem;
  color: var(--muted);
  flex-shrink: 0;
}

.project-list {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  display: grid;
  gap: 12px;
}

.project-list li {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.project-list a {
  font-weight: 600;
}

.page-hero {
  padding: 10px 0 24px;
}

.page-hero h1 {
  margin-bottom: 10px;
}

.grid-two {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.post {
  display: grid;
  gap: 32px;
}

.post-header {
  border-bottom: 1px solid var(--line);
  padding-bottom: 20px;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.post-tags {
  display: inline-flex;
  gap: 8px;
  flex-wrap: wrap;
}

.post-body {
  overflow-wrap: break-word;
  word-break: break-word;
  min-width: 0;
}

.post-body > * + * {
  margin-top: 20px;
}

.post-body table {
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

code,
pre {
  font-family: "JetBrains Mono", "Courier New", monospace;
}

pre {
  padding: 18px;
  border-radius: 14px;
  background: #0f172a;
  color: #e2e8f0;
  overflow-x: auto;
}

blockquote {
  margin: 0;
  padding: 18px 22px;
  border-left: 4px solid var(--accent);
  background: rgba(225, 29, 72, 0.08);
  border-radius: 12px;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-name {
  font-weight: 700;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
}

.footer-social {
  display: flex;
  gap: 16px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--muted);
}

.text-link {
  font-weight: 600;
  color: #fff;
}

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

.reveal {
  animation: slideUp 0.8s ease both;
}

.delay-1 {
  animation-delay: 0.1s;
}

.delay-2 {
  animation-delay: 0.2s;
}

.delay-3 {
  animation-delay: 0.3s;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    animation: none;
  }
}

@media (max-width: 900px) {
  .site-header {
    position: relative;
  }

  .nav-wrap {
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav {
    justify-content: center;
    flex-wrap: wrap;
    width: 100%;
    order: 2;
  }

  .nav-wrap .btn {
    order: 3;
  }
}

@media (max-width: 720px) {
  .hero {
    padding: 48px 0 24px;
  }

  .hero-intro {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  .main {
    padding: 24px 0 60px;
  }

  .cert-list li {
    flex-direction: column;
    gap: 4px;
  }
}