:root {
  --bg: #000000;
  --surface: #101010;
  --title: #ffffff;
  --body: #aaaaaa;
  --accent: #e50914;
  --divider: #173b2a;

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --maxw: 1160px;
  --sp1: 0.5rem;
  --sp2: 0.75rem;
  --sp3: 1rem;
  --sp4: 1.5rem;
  --sp5: 2rem;
  --sp6: 3rem;
  --sp7: 4.5rem;
  --sp8: 7rem;

  --line: 1.6;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--body);
  font-family: var(--sans);
  line-height: var(--line);
}

a {
  color: var(--title);
  text-decoration: none;
  transition: color 180ms ease;
}

a:hover,
a:focus-visible {
  color: var(--accent);
}

h1,
h2,
h3,
h4 {
  color: var(--title);
  margin: 0 0 var(--sp4);
  letter-spacing: -0.02em;
  line-height: 1.2;
  transition: color 180ms ease;
}

h1:hover,
h2:hover,
h3:hover,
h4:hover {
  color: var(--accent);
}

p,
ul,
ol,
pre,
table,
blockquote {
  margin: 0 0 var(--sp4);
}

ul,
ol {
  padding-left: 1.25rem;
}

li {
  margin-bottom: var(--sp1);
}

.wrapper {
  width: min(100% - 3rem, var(--maxw));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--divider);
}

.header-row {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp4);
}

.brand {
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--title);
  letter-spacing: -0.02em;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--sp4);
  flex-wrap: wrap;
}

.nav-list a {
  font-size: 0.92rem;
  color: var(--title);
}

.nav-list a.active {
  color: var(--accent);
}

.section {
  padding: var(--sp5) 0;
}

.hero {
  padding-top: var(--sp5);
  padding-bottom: var(--sp6);
}

.eyebrow {
  display: inline-block;
  margin-bottom: var(--sp3);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--body);
}

.hero h1 {
  width: 100%;
  max-width: 100%;
  font-size: clamp(2.25rem, 4.8vw, 4.75rem);
  line-height: 1.05;
  margin-bottom: var(--sp3);
}

.lead {
  font-size: 1.12rem;
  max-width: 70ch;
}

.hero-copy {
  max-width: 72ch;
  font-size: 1.08rem;
  color: var(--body);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp3);
  margin-top: var(--sp4);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.85rem 1.15rem;
  border: 1px solid var(--divider);
  color: var(--title);
  font-weight: 700;
  letter-spacing: -0.01em;
  background: transparent;
  transition: color 180ms ease, border-color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background: transparent;
  color: var(--accent);
}

.btn-secondary {
  background: transparent;
}

.rule {
  border: 0;
  border-top: 1px solid var(--divider);
  margin: 0;
}

.panel {
  background: var(--surface);
  padding: var(--sp5);
}

.section-heading {
  margin-bottom: var(--sp3);
}

.section-intro {
  max-width: 72ch;
  font-size: 1.05rem;
  color: var(--body);
}

.problem-grid,
.case-grid {
  display: grid;
  gap: var(--sp4);
}

.problem-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.case-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  background: var(--surface);
  padding: var(--sp5) var(--sp4);
}

.card h3 {
  font-size: 1.2rem;
  margin-bottom: var(--sp3);
}

.card p {
  margin-bottom: 0;
}

.cta-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp4);
  background: var(--surface);
  padding: var(--sp5);
}

.cta-strip p {
  max-width: 62ch;
  margin: 0;
}

.team-text {
  max-width: 86ch;
  line-height: 1.8;
  font-size: 1.06rem;
}

.grid-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--body);
  margin-bottom: var(--sp3);
}

.pillars {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--sp4);
}

.pillar {
  background: var(--surface);
  padding: var(--sp5) var(--sp4);
}

.pillar h3 {
  font-size: 1.3rem;
  margin-bottom: var(--sp3);
}

.pillar p {
  margin-bottom: 0;
  font-size: 0.96rem;
}

.service-stack {
  display: grid;
  gap: var(--sp4);
}

.service {
  background: var(--surface);
  padding: var(--sp5);
}

.service h3 {
  font-size: 1.35rem;
  margin-bottom: var(--sp3);
}

.service p,
.service ul {
  max-width: 90ch;
}

.contact-shell {
  max-width: 78ch;
}

.contact-methods {
  margin-top: var(--sp5);
}

.contact-label {
  margin: 0 0 var(--sp3);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--body);
}

.social-icons {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--body);
  width: 4rem;
  height: 2rem;
  line-height: 1;
  transition: transform 180ms ease, color 180ms ease, filter 180ms ease;
}

.icon-link svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.icon-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  border: 1px solid var(--divider);
  border-radius: 0.4rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  background: #0d0d0d;
  color: var(--body);
}

.icon-link:hover,
.icon-link:focus-visible {
  transform: translateY(-2px);
  filter: drop-shadow(0 4px 10px rgba(229, 9, 20, 0.18));
}

.icon-link.github:hover,
.icon-link.github:focus-visible {
  color: var(--title);
}

.icon-link.github:hover .icon-mark,
.icon-link.github:focus-visible .icon-mark {
  border-color: var(--title);
}

.icon-link.gmail:hover,
.icon-link.gmail:focus-visible {
  color: var(--accent);
}

.icon-link.gmail:hover .icon-mark,
.icon-link.gmail:focus-visible .icon-mark {
  border-color: var(--accent);
}

.icon-link.linkedin:hover,
.icon-link.linkedin:focus-visible {
  color: #0077b5;
}

.icon-link.linkedin:hover .icon-mark,
.icon-link.linkedin:focus-visible .icon-mark {
  border-color: #0077b5;
}

.icon-link.twitter:hover,
.icon-link.twitter:focus-visible {
  color: #1da1f2;
}

.icon-link.twitter:hover .icon-mark,
.icon-link.twitter:focus-visible .icon-mark {
  border-color: #1da1f2;
}

.icon-link.reddit:hover,
.icon-link.reddit:focus-visible {
  color: #ff4500;
}

.icon-link.reddit:hover .icon-mark,
.icon-link.reddit:focus-visible .icon-mark {
  border-color: #ff4500;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: var(--sp5) 0 0;
  display: grid;
  gap: var(--sp3);
}

.contact-list li {
  background: var(--surface);
  padding: var(--sp4);
  margin: 0;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--sp4);
}

.post-card {
  background: var(--surface);
  padding: var(--sp4);
}

.post-card time {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--body);
}

.post-card h3 {
  margin-top: var(--sp2);
  margin-bottom: var(--sp3);
  font-size: 1.08rem;
}

.post-card h3:hover,
.pillar h3:hover,
.service h3:hover,
.post-title:hover {
  color: var(--accent);
}

.post-card p {
  margin-bottom: var(--sp3);
  font-size: 0.93rem;
}

.post-card .read-link {
  font-size: 0.88rem;
  font-weight: 600;
}

.post {
  padding-top: var(--sp4);
}

.post-wrap {
  width: min(100% - 2rem, 960px);
  margin-inline: auto;
}

.post-meta {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--body);
  margin-bottom: var(--sp3);
}

.post-title {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.05;
  margin-bottom: var(--sp3);
}

.markdown-body {
  line-height: 1.78;
}

.markdown-body h2,
.markdown-body h3 {
  margin-top: var(--sp6);
}

.markdown-body h2 {
  font-size: 1.75rem;
}

.markdown-body h3 {
  font-size: 1.28rem;
}

.markdown-body strong {
  color: var(--title);
}

.markdown-body a {
  color: var(--title);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 3px;
}

.markdown-body code {
  font-family: var(--mono);
  background: #0f0f0f;
  border: 1px solid #262626;
  color: var(--title);
  padding: 0.15rem 0.35rem;
  font-size: 0.92em;
}

.markdown-body pre {
  background: #0f0f0f;
  border: 1px solid #262626;
  padding: var(--sp4);
  overflow-x: auto;
}

.markdown-body pre code {
  border: 0;
  padding: 0;
  background: transparent;
}

.markdown-body blockquote {
  border-left: 2px solid var(--accent);
  padding: var(--sp2) 0 var(--sp2) var(--sp4);
  color: #bebebe;
}

.site-footer {
  border-top: 1px solid var(--divider);
  margin-top: var(--sp5);
}

.footer-row {
  padding: var(--sp5) 0 var(--sp6);
  text-align: center;
}

.footer-tagline {
  margin: 0 0 var(--sp2);
  font-family: var(--mono);
  font-size: 0.85rem;
}

.footer-copy {
  margin: 0;
  font-size: 0.75rem;
}

@media (max-width: 1120px) {
  .pillars,
  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .wrapper {
    width: min(100% - 2rem, var(--maxw));
  }

  .header-row {
    min-height: 64px;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: var(--sp3) 0;
  }

  .nav-list {
    gap: var(--sp3);
  }

  .hero {
    padding-top: var(--sp4);
    padding-bottom: var(--sp5);
  }

  .pillars,
  .timeline {
    grid-template-columns: 1fr;
  }

  .problem-grid,
  .case-grid {
    grid-template-columns: 1fr;
  }

  .cta-strip {
    flex-direction: column;
    align-items: flex-start;
  }

  .post-wrap {
    width: min(100% - 2rem, 860px);
  }
}