/* Arthur Reeder Tech — modern refresh
   Dark, clean, system fonts. Brand blue (#28abe1) kept from the original.
   Monospace survives only as an accent (labels/eyebrows) — a nod to the
   old all-Courier look without making body text hard to read. */

:root {
  --bg: #0d141b;
  --bg-soft: #111b24;
  --panel: #15222e;
  --panel-border: rgba(140, 190, 225, 0.16);
  --text: #e8eef3;
  --text-dim: #a7b6c2;
  --accent: #28abe1;
  --accent-bright: #5cc4f0;
  --accent-deep: #17739e;
  --radius: 16px;
  --max: 1120px;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo,
    Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.6;
  background-color: var(--bg);
  background-image:
    radial-gradient(900px 480px at 85% -5%, rgba(40, 171, 225, 0.14), transparent 60%),
    radial-gradient(700px 420px at -10% 30%, rgba(40, 171, 225, 0.07), transparent 60%);
  color: var(--text);
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #06121a;
  padding: 10px 18px;
  font-weight: 600;
  z-index: 100;
}

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

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(13, 20, 27, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--panel-border);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
}

.brand:hover {
  text-decoration: none;
}

.brand-logo {
  filter: invert(1);
  display: block;
}

.brand-name {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.brand-tech {
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 700;
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 8px 12px;
  border-radius: 999px;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.site-nav a:hover {
  color: var(--text);
  background: var(--bg-soft);
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--accent-bright);
  background: rgba(40, 171, 225, 0.12);
}

/* ---------- Layout ---------- */

.content {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px 72px;
  display: block;
}

.content h1,
.content h2,
.content h3,
.content h4,
.content h5,
.content h6 {
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -0.015em;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 14px;
}

.section-title {
  font-size: clamp(1.7rem, 3.5vw, 2.3rem);
  margin: 0 0 28px;
}

/* ---------- Hero ---------- */

.hero {
  text-align: center;
  padding: 84px 0 56px;
}

.hero h1 {
  font-size: clamp(2.3rem, 6vw, 4rem);
  font-weight: 800;
  margin: 0 0 20px;
  background: linear-gradient(100deg, #ffffff 30%, var(--accent-bright));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  max-width: 640px;
  margin: 0 auto 32px;
  color: var(--text-dim);
  font-size: 1.14rem;
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease,
    background-color 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-deep));
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(40, 171, 225, 0.28);
}

.btn-primary:hover {
  box-shadow: 0 12px 30px rgba(40, 171, 225, 0.38);
}

.btn-ghost {
  border-color: var(--panel-border);
  color: var(--text);
  background: rgba(21, 34, 46, 0.5);
}

.btn-ghost:hover {
  border-color: var(--accent);
}

.hero-chips {
  list-style: none;
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 40px 0 0;
  padding: 0;
}

.hero-chips li {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 6px 14px;
  background: rgba(21, 34, 46, 0.55);
}

.hero-chips li::before {
  content: "✓";
  color: var(--accent);
  margin-right: 7px;
  font-weight: 700;
}

/* ---------- Intro / prose ---------- */

.intro {
  max-width: 760px;
  margin: 0 auto;
  padding: 8px 0 24px;
  text-align: center;
  color: var(--text-dim);
  font-size: 1.08rem;
}

.prose {
  max-width: 760px;
}

.prose p {
  margin: 0 0 1.15em;
}

.prose h1 {
  font-size: clamp(1.9rem, 4.5vw, 2.7rem);
  margin: 48px 0 18px;
}

.prose h2 {
  font-size: 1.55rem;
  margin: 1.6em 0 0.6em;
}

.prose a {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(92, 196, 240, 0.45);
}

.prose blockquote {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-left: 4px solid var(--accent);
  padding: 18px 28px;
  margin: 28px 0;
  font-size: 1.35rem;
  font-weight: 600;
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--text);
}

.prose blockquote p {
  margin: 0;
}

.page {
  padding-top: 16px;
}

.page > h1 {
  font-size: clamp(1.9rem, 4.5vw, 2.7rem);
  margin: 48px 0 18px;
}

.post-meta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  margin: 0 0 18px;
}

/* ---------- Services ---------- */

.services {
  padding: 48px 0 8px;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.card {
  background: linear-gradient(160deg, var(--panel), var(--bg-soft));
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 30px 30px 24px;
  transition: transform 0.18s ease, border-color 0.18s ease,
    box-shadow 0.18s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(40, 171, 225, 0.55);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
}

.card-icon {
  width: 40px;
  height: 40px;
  color: var(--accent);
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.3rem;
  margin: 0 0 6px;
}

.card-tagline {
  display: block;
  color: var(--accent-bright);
  font-size: 0.98rem;
  margin: 0 0 16px;
}

.card ul {
  margin: 0;
  padding-left: 1.15em;
  color: var(--text-dim);
}

.card li {
  margin-bottom: 7px;
}

.card li::marker {
  color: var(--accent);
}

/* ---------- Commitment ---------- */

.commitment {
  margin-top: 64px;
  background: linear-gradient(150deg, rgba(40, 171, 225, 0.13), rgba(40, 171, 225, 0.04));
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 40px;
}

.commitment-lede {
  color: var(--text-dim);
  max-width: 620px;
  margin: 0 0 22px;
  font-size: 1.05rem;
}

.check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 28px;
  font-weight: 600;
}

.check-list li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 800;
  margin-right: 10px;
}

/* ---------- CTA band ---------- */

.cta-band {
  text-align: center;
  padding: 72px 0 8px;
}

.cta-band h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.3rem);
  margin: 0 0 12px;
}

.cta-band p {
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 auto 28px;
}

/* ---------- News / post list ---------- */

.post-list {
  display: grid;
  gap: 18px;
  margin-top: 12px;
}

.post-card {
  background: linear-gradient(160deg, var(--panel), var(--bg-soft));
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 24px 28px;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.post-card:hover {
  transform: translateY(-3px);
  border-color: rgba(40, 171, 225, 0.55);
}

.post-card-title {
  margin: 0 0 6px;
  font-size: 1.3rem;
}

.post-card-title a {
  color: var(--text);
}

.post-card-title a:hover {
  color: var(--accent-bright);
  text-decoration: none;
}

.post-card .post-meta {
  margin-bottom: 8px;
}

.post-summary {
  color: var(--text-dim);
  margin: 0;
}

/* ---------- 404 ---------- */

.not-found {
  text-align: center;
  padding: 72px 0 32px;
}

.not-found h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin: 0 0 14px;
}

.not-found p {
  color: var(--text-dim);
  margin: 0 0 26px;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--panel-border);
  background: var(--bg-soft);
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 44px 24px 36px;
  display: grid;
  gap: 22px;
  justify-items: center;
  text-align: center;
}

.footer-tagline {
  color: var(--text-dim);
  margin: 12px 0 0;
  font-size: 0.97rem;
}

.footer-nav ul {
  list-style: none;
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  justify-content: center;
  margin: 0;
  padding: 0;
}

.footer-nav a {
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.footer-nav a:hover {
  color: var(--accent-bright);
}

.footer-legal {
  color: var(--text-dim);
  font-size: 0.88rem;
  margin: 0;
}

/* ---------- Responsive ---------- */

@media screen and (max-width: 860px) {
  .card-grid {
    grid-template-columns: 1fr;
  }

  .check-list {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 56px 0 40px;
  }

  .commitment {
    padding: 30px 24px;
  }
}

@media screen and (max-width: 560px) {
  body {
    font-size: 17px;
  }

  .header-inner {
    justify-content: center;
  }

  .site-nav ul {
    justify-content: center;
  }

  .content {
    padding: 0 18px 56px;
  }
}

/* ---------- Motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .card,
  .post-card,
  .btn {
    transition: none;
  }

  .card:hover,
  .post-card:hover,
  .btn:hover {
    transform: none;
  }
}