:root {
  /* Light page */
  --bg: #ffffff;
  --bg-alt: #f4f6fb;
  --surface: #ffffff;
  --border: #e2e6ef;
  --text: #151a26;
  --muted: #586174;
  --shadow: 0 1px 2px rgba(20, 30, 60, 0.04), 0 8px 24px -12px rgba(20, 30, 60, 0.12);

  /* Brand colors, sampled from the logo */
  --cyan: #00d4ff;
  --blue: #1e6bff;
  --violet: #a347ff;
  --accent: #1260e0;
  /* Darker-start gradient keeps text readable on white */
  --grad: linear-gradient(90deg, #0a8fe8, var(--blue) 50%, #8a3df0);
  --grad-btn: linear-gradient(90deg, #0a8fe8, var(--blue) 50%, #8a3df0);
  --glow: rgba(30, 107, 255, 0.35);

  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius: 12px;
  --max: 1120px;
}

/* Dark bands (hero, footer): the logo's white lettering needs a dark backdrop */
.dark {
  --bg: #0f1526;
  --surface: #161d31;
  --border: #26304a;
  --text: #eef1f7;
  --muted: #a3acc0;
  --accent: #4cc9ff;
  --grad: linear-gradient(90deg, var(--cyan), var(--blue) 55%, var(--violet));
  background: var(--bg);
  color: var(--text);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 72px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 0.6em; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.4rem, 5.5vw, 3.9rem); font-weight: 700; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 600; }
p { margin: 0 0 1em; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.mono { font-family: var(--font-mono); }
.accent { color: var(--accent); }
.muted { color: var(--muted); }
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.8em 1.4em;
  border-radius: 8px;
  background: var(--grad-btn);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: box-shadow 0.15s, transform 0.15s, border-color 0.15s, background 0.15s;
}
.btn:hover { box-shadow: 0 8px 24px -6px var(--glow); transform: translateY(-1px); }
.btn:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface); border-color: var(--muted); }
.btn-small { padding: 0.45em 1em; font-size: 0.9rem; }
.btn-large { font-family: var(--font-mono); font-size: 1.1rem; padding: 0.9em 1.6em; overflow-wrap: anywhere; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; font-size: 1.2rem; letter-spacing: -0.01em; }
.logo-mark { width: 36px; height: 36px; display: block; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-links a:not(.btn) { text-decoration: none; color: var(--muted); font-size: 0.95rem; }
.nav-links a:not(.btn):hover { color: var(--text); }

/* Hero */
.hero {
  padding: 96px 0 104px;
  background:
    radial-gradient(ellipse 55% 55% at 78% 45%, rgba(30, 107, 255, 0.14), transparent 70%),
    radial-gradient(ellipse 40% 40% at 90% 70%, rgba(163, 71, 255, 0.08), transparent 70%),
    linear-gradient(var(--bg), var(--bg));
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.25;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  pointer-events: none;
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
.eyebrow { color: var(--muted); font-size: 0.9rem; margin-bottom: 1.2em; }
.prompt { color: var(--accent); }
.lede { font-size: 1.15rem; color: var(--muted); max-width: 34em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 2em; }
.lede strong { color: var(--text); font-weight: 600; }
.previously { margin: 2em 0 0; font-size: 0.85rem; color: var(--muted); }
.hero-logo { display: flex; justify-content: center; }
.hero-logo img {
  width: 100%; max-width: 520px; height: auto;
  filter: drop-shadow(0 0 40px rgba(30, 107, 255, 0.25));
}

/* Sections */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--border); }
.section-label { color: var(--accent); font-size: 0.9rem; margin-bottom: 0.6em; }

/* Service cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover { border-color: rgba(60, 140, 255, 0.5); transform: translateY(-2px); }
.card-icon {
  display: inline-grid; place-items: center;
  width: 48px; height: 48px; margin-bottom: 20px;
  border-radius: 10px; border: 1px solid transparent;
  background: linear-gradient(var(--surface), var(--surface)) padding-box, var(--grad) border-box;
  color: var(--accent); font-size: 1.1rem;
}
.card > p { color: var(--muted); }
.checklist { list-style: none; padding: 0; margin: 20px 0 0; }
.checklist li { position: relative; padding-left: 26px; margin-bottom: 8px; }
.checklist li::before { content: "→"; position: absolute; left: 0; color: var(--accent); font-family: var(--font-mono); }

/* Experience */
.section-intro { color: var(--muted); max-width: 40em; }
.work-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 32px; }
.work-card {
  display: flex; flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px;
}
.work-card h3 { font-size: 1.08rem; margin-bottom: 0.5em; }
.work-card > p:not(.work-org) { color: var(--muted); font-size: 0.95rem; flex: 1; }
.work-org { color: var(--accent); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 0.6em; }
.work-tech { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; padding: 0; margin: 8px 0 0; }
.work-tech li { font-size: 0.72rem; padding: 0.2em 0.6em; border-radius: 6px; background: var(--bg-alt); color: var(--muted); }

/* Skills */
.subhead { margin-top: 64px; font-size: 1.3rem; }
.subhead + .tags-industry { margin-top: 16px; }
.tags + .subhead { margin-top: 40px; }
.tags { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; padding: 0; margin: 20px 0 0; }
.tags li {
  padding: 0.45em 0.95em;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.92rem;
}
.tags-industry li { border-color: rgba(30, 107, 255, 0.35); color: var(--accent); font-weight: 500; }

/* Credentials */
.credentials {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
  margin-top: 64px; padding-top: 40px;
  border-top: 1px solid var(--border);
}
.cred-title { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); margin-bottom: 1em; }
.cred ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.cred li { font-size: 0.92rem; color: var(--muted); line-height: 1.45; }
.cred li strong { display: block; color: var(--text); font-weight: 600; }
.cred li a { display: block; color: var(--text); font-weight: 500; text-decoration: none; }
.cred li a:hover { color: var(--accent); text-decoration: underline; }
.cred li a + span { font-size: 0.85rem; }

/* Approach */
.approach-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; margin-top: 40px; }
.about-copy p { color: var(--muted); }
.stat { display: flex; align-items: baseline; gap: 14px; margin-bottom: 24px; }
.stat-num { font-size: clamp(3rem, 6vw, 4.2rem); font-weight: 700; line-height: 1; letter-spacing: -0.03em; }
.stat-label { color: var(--text); font-weight: 500; }
.principles { display: grid; gap: 28px; }
.principle h3 { display: flex; gap: 12px; align-items: baseline; }
.principle p { color: var(--muted); margin: 0; }

/* CTA */
.cta {
  text-align: center;
  max-width: 720px; margin: 0 auto;
  padding: 64px 32px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: radial-gradient(ellipse at top, rgba(30, 107, 255, 0.08), transparent 70%), var(--surface);
  box-shadow: var(--shadow);
}
.cta p:not(.section-label) { color: var(--muted); margin-bottom: 2em; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.cta-actions .btn { display: inline-flex; align-items: center; gap: 10px; }

/* Icons & links */
.icon { width: 1.1em; height: 1.1em; flex: none; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--accent); font-weight: 600; text-decoration: none; }
.text-link:hover { text-decoration: underline; }

/* Footer */
.footer { padding: 32px 0; font-size: 0.9rem; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer p { margin: 0; }
.footer-brand { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.footer-meta { display: flex; align-items: center; gap: 14px; }
.footer-meta a { display: inline-flex; color: var(--muted); }
.footer-meta a:hover { color: var(--text); }
.footer-meta .icon { width: 20px; height: 20px; }

/* Responsive */
@media (max-width: 1080px) {
  .work-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .hero { padding: 64px 0 72px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-logo { order: -1; }
  .hero-logo img { max-width: 340px; }
  .cards, .approach-grid, .work-grid { grid-template-columns: 1fr; }
  .credentials { grid-template-columns: 1fr; gap: 28px; }
  .section { padding: 72px 0; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .container { padding: 0 16px; }
  .nav-links { gap: 16px; }
  .nav-links li:not(:last-child) { display: none; }
  .card { padding: 28px 22px; }
  .cta { padding: 48px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .card { transition: none; }
}