:root {
  --bg: #171818;
  --bg-alt: #1e2020;
  --card: #212121;
  --border: #2d2f2f;
  --text: #e9ebe9;
  --text-dim: #9aa19d;
  --accent: #00d084;
  --accent-dim: #0a3d29;
  --mono: 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --maxw: 920px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

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

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* header */
header.site {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(23, 24, 24, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--text);
}

.brand img {
  width: 30px;
  height: 30px;
  border-radius: 7px;
}

nav.main-nav {
  display: flex;
  gap: 28px;
}

nav.main-nav a {
  text-decoration: none;
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s ease;
}

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

/* section label */
.eyebrow {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.08em;
  margin: 0 0 14px;
}

section { padding: 76px 0; }
section.tight { padding-top: 0; }

/* hero */
.hero { padding: 88px 0 60px; }

.hero h1 {
  font-size: clamp(36px, 6vw, 56px);
  line-height: 1.08;
  margin: 0 0 18px;
  letter-spacing: -0.02em;
}

.hero .tagline {
  font-size: 20px;
  color: var(--text);
  margin: 0 0 10px;
  max-width: 560px;
}

.hero .sub {
  color: var(--text-dim);
  font-size: 16px;
  max-width: 560px;
  margin: 0 0 28px;
}

.prompt-line {
  font-family: var(--mono);
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 28px;
}

.prompt-line .cursor {
  color: var(--accent);
  margin-right: 8px;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 34px;
}

.badge {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 12px;
}

.cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  padding: 11px 20px;
  border-radius: 8px;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary { background: var(--accent); color: #0b1210; }
.btn-primary:hover { opacity: 0.92; }

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

/* positioning */
.positioning {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

blockquote.quote {
  margin: 0 0 28px;
  padding-left: 20px;
  border-left: 2px solid var(--accent);
  font-size: 20px;
  line-height: 1.55;
  color: var(--text);
  font-style: normal;
}

.availability {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

/* projects */
h2.section-title {
  font-size: 28px;
  margin: 0 0 36px;
  letter-spacing: -0.01em;
}

.projects-grid {
  display: grid;
  gap: 20px;
}

.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
}

.project-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.project-head h3 {
  margin: 0;
  font-size: 19px;
}

.status-tag {
  font-family: var(--mono);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 20px;
  white-space: nowrap;
  border: 1px solid var(--border);
  color: var(--text-dim);
}

.status-tag.live { color: var(--accent); border-color: var(--accent-dim); background: rgba(0, 208, 132, 0.08); }

.project-card p {
  color: var(--text-dim);
  font-size: 14.5px;
  margin: 0 0 14px;
}

.project-card .arch {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text-dim);
  margin: 0 0 16px;
}

.project-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.highlight {
  font-size: 12px;
  color: var(--accent);
  background: rgba(0, 208, 132, 0.08);
  border-radius: 6px;
  padding: 4px 9px;
}

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

.project-links a {
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.project-links a:hover { color: var(--accent); }

/* stat grid inside project cards */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 16px;
  margin: 6px 0 14px;
}

.stat b {
  display: block;
  font-family: var(--mono);
  font-size: 22px;
  color: var(--accent);
  line-height: 1.2;
}

.stat span {
  display: block;
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 4px;
  line-height: 1.4;
}

/* GEO proof */
.geo-proof {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.geo-intro {
  color: var(--text-dim);
  font-size: 15.5px;
  max-width: 640px;
  margin: 0 0 32px;
}

.geo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  margin: 0 0 24px;
}

.geo-grid figure {
  margin: 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

.geo-grid img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  object-position: top;
  border-bottom: 1px solid var(--border);
}

.geo-grid figcaption {
  padding: 10px 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

.geo-footnote {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text-dim);
}

/* differential */
.diff-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 720px;
}

.diff-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.55;
}

.diff-n {
  flex: none;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: var(--accent);
  color: #0b1210;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* about */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-grid p { color: var(--text-dim); font-size: 15.5px; }

.results-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.results-list li {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--text);
  padding-left: 20px;
  position: relative;
}

.results-list li::before {
  content: "▸";
  color: var(--accent);
  position: absolute;
  left: 0;
}

.cert-note {
  font-size: 13px;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin-top: 16px;
}

/* footer / contact */
footer.site {
  border-top: 1px solid var(--border);
  padding: 60px 0 40px;
  text-align: center;
}

footer.site h2 {
  font-size: 26px;
  margin: 0 0 22px;
}

.social-row {
  display: flex;
  justify-content: center;
  gap: 22px;
  margin: 28px 0 30px;
}

.social-row a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.social-row a:hover { color: var(--accent); }

footer.site .fine {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  opacity: 0.7;
}

@media (max-width: 720px) {
  nav.main-nav { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
}