:root {
  --bg: #0a1018;
  --bg-elev: #111b26;
  --text: #e9eef4;
  --muted: #8b98a8;
  --accent: #5eb3d4;
  --accent-deep: #2d7a9a;
  --border: #1a2836;
  --radius: 12px;
  --font: system-ui, "Segoe UI", Roboto, sans-serif;
  --max: 1040px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: radial-gradient(1200px 600px at 20% -10%, rgba(94, 179, 212, 0.12), transparent),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: var(--bg);
  z-index: 100;
}

.skip:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 16, 24, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  flex-wrap: wrap;
}

.logo {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--accent);
  font-weight: 600;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  align-items: center;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

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

.nav-cta {
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  color: var(--accent) !important;
}

.nav-cta:hover {
  background: rgba(94, 179, 212, 0.12);
}

.hero {
  padding: 3.5rem 0 3rem;
}

.hero-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}

@media (min-width: 860px) {
  .hero-grid {
    grid-template-columns: 1.2fr 0.9fr;
    align-items: start;
  }
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  color: var(--accent);
  margin: 0 0 0.75rem;
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  line-height: 1.2;
  margin: 0 0 1rem;
  font-weight: 700;
}

.lede {
  color: var(--muted);
  margin: 0 0 1.5rem;
  max-width: 38rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-block;
  padding: 0.65rem 1.15rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}

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

.btn.primary:hover {
  filter: brightness(1.08);
}

.btn.ghost {
  border: 1px solid var(--border);
  color: var(--text);
}

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

.hero-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.5rem;
}

.hero-card h2 {
  margin: 0 0 1rem;
  font-size: 1rem;
  color: var(--text);
}

.checklist {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.checklist li {
  margin-bottom: 0.55rem;
}

.checklist li:last-child {
  margin-bottom: 0;
}

.section {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--border);
}

.section h2 {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
}

.section-intro {
  color: var(--muted);
  margin: 0 0 1.75rem;
  max-width: 42rem;
}

.cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 700px) {
  .cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--accent);
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer a {
  color: var(--accent);
}

/* contact */
.contact-main {
  padding: 3rem 0 4rem;
}

.contact-card {
  max-width: 520px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.contact-card p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.contact-card p:last-child {
  margin-bottom: 0;
}

.contact-canonical {
  color: var(--muted);
  font-weight: 400;
}

/* articles hub + prose pages */
.article-main {
  padding: 2.5rem 0 4rem;
}

.prose {
  max-width: 40rem;
}

.prose > h1 {
  margin-bottom: 0.75rem;
}

.prose h2 {
  font-size: 1.2rem;
  margin: 2rem 0 0.65rem;
  color: var(--text);
  font-weight: 650;
}

.prose p,
.prose li {
  color: var(--muted);
}

.prose a {
  color: var(--accent);
}

.prose ul {
  margin: 0 0 1.25rem;
  padding-left: 1.25rem;
}

.prose li {
  margin-bottom: 0.4rem;
}

.article-meta {
  font-size: 0.85rem;
  margin: 0 0 0.5rem;
}

.article-meta a {
  color: var(--muted);
}

.article-lede {
  font-size: 1.05rem;
  margin: 0 0 1.5rem;
  color: var(--muted);
}

.article-index {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
}

.article-index li {
  margin-bottom: 1.35rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.article-index li:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.article-index a {
  display: block;
  font-weight: 650;
  color: var(--text);
  text-decoration: none;
  margin-bottom: 0.35rem;
}

.article-index a:hover {
  color: var(--accent);
}

.article-blurb {
  display: block;
  font-size: 0.95rem;
  color: var(--muted);
  font-weight: 400;
}

.article-cta {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: center;
}

.footer-stack p {
  margin: 0;
}

.hero-tagline {
  font-size: 1.1rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
  max-width: 36rem;
}

.section--tight {
  padding-top: 2rem;
}

.section--muted {
  background: rgba(17, 27, 38, 0.55);
}

.section-kicker {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.8rem;
  color: var(--accent);
  margin: 0 0 0.35rem;
}

.section--mapping h2.section-kicker {
  margin-bottom: 0.5rem;
}

.cards--about {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .cards--about {
    grid-template-columns: repeat(2, 1fr);
  }
}

.cards--about .card strong,
.cards--about .card em {
  color: var(--text);
}

.portfolio-stack {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.portfolio-category {
  margin: 0;
}

.portfolio-category > h3 {
  margin: 0 0 0.4rem;
  font-size: 1.12rem;
  font-weight: 650;
  color: var(--accent);
}

.portfolio-category__blurb {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
  max-width: 42rem;
}

.portfolio-carousel {
  --pc-slide-count: 1;
  max-width: 920px;
  margin: 0 auto;
  touch-action: pan-y pinch-zoom;
}

.pc-viewport {
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elev);
  touch-action: pan-y pinch-zoom;
}

.pc-track {
  display: flex;
  transition: transform 0.35s ease;
  width: calc(var(--pc-slide-count) * 100%);
}

.pc-slide {
  flex: 0 0 calc(100% / var(--pc-slide-count));
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 12rem;
  max-height: min(70vh, 520px);
}

.pc-slide img {
  width: 100%;
  height: auto;
  max-height: min(70vh, 520px);
  object-fit: contain;
  vertical-align: middle;
}

.pc-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.pc-btn {
  font: inherit;
  cursor: pointer;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
}

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

.pc-counter {
  font-size: 0.9rem;
  color: var(--muted);
  min-width: 4.5rem;
  text-align: center;
}

.video-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .video-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.video-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem 1.15rem;
}

.video-card__title {
  margin: 0 0 0.65rem;
  font-size: 1rem;
  color: var(--accent);
  font-weight: 650;
}

.embed {
  position: relative;
  width: 100%;
  border-radius: calc(var(--radius) - 4px);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #000;
}

.embed .video-poster,
.embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.mapping-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .mapping-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.mapping-card {
  margin: 0;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.mapping-card img {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: middle;
}

.mapping-card figcaption {
  padding: 0.65rem 0.85rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.contact-teaser h2 {
  margin-top: 0;
}

.video-poster {
  position: absolute;
  inset: 0;
  display: block;
  text-decoration: none;
  color: var(--text);
  outline-offset: 4px;
}

.video-poster:focus-visible {
  outline: 2px solid var(--accent);
}

.video-poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  vertical-align: middle;
}

.video-poster__play {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 4rem;
  height: 4rem;
  margin: -2rem 0 0 -2rem;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  border: 2px solid rgba(255, 255, 255, 0.85);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.video-poster__play::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-40%, -50%);
  border-style: solid;
  border-width: 0.65rem 0 0.65rem 1.1rem;
  border-color: transparent transparent transparent rgba(255, 255, 255, 0.95);
}

.video-poster__label {
  position: absolute;
  left: 0.75rem;
  bottom: 0.65rem;
  right: 0.75rem;
  padding: 0.35rem 0.55rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: #fff;
  background: rgba(0, 0, 0, 0.55);
  border-radius: 6px;
  pointer-events: none;
}