:root {
  --bg: #0e1116;
  --bg-2: #151a22;
  --line: #262d39;
  --text: #e8ecf2;
  --muted: #9aa4b2;
  --accent: #4ade80;
  --accent-2: #38bdf8;
  --warm: #f59e0b;
  --radius: 14px;
  --max: 1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Inter", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, .logo { font-family: "Space Grotesk", system-ui, sans-serif; line-height: 1.15; }
a { color: inherit; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px clamp(16px, 4vw, 40px);
  background: rgba(14, 17, 22, .8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.logo { text-decoration: none; font-weight: 700; font-size: 1.1rem; }
.logo-mark { color: var(--accent); }
.nav nav { display: flex; gap: 22px; align-items: center; }
.nav nav a { text-decoration: none; color: var(--muted); font-size: .95rem; }
.nav nav a:hover { color: var(--text); }

.btn {
  display: inline-block; border: 0; cursor: pointer;
  background: var(--accent); color: #06220f !important;
  font: 600 1rem "Inter", sans-serif;
  padding: 12px 22px; border-radius: 999px; text-decoration: none;
  transition: transform .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(74, 222, 128, .3); }
.btn-small { padding: 8px 16px; font-size: .9rem; }

.eyebrow {
  color: var(--accent); font-weight: 600; font-size: .8rem;
  letter-spacing: .14em; text-transform: uppercase; margin-bottom: 12px;
}
.accent { color: var(--accent); }

/* ---------- Hero build animation ---------- */
.build { height: 420vh; position: relative; }
.build-sticky {
  position: sticky; top: 0; height: 100vh;
  display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(24px, 5vw, 64px);
  align-items: center;
  max-width: var(--max); margin: 0 auto;
  padding: 80px clamp(16px, 4vw, 40px) 24px;
}
.build h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); margin-bottom: 28px; }

.steps { list-style: none; display: grid; gap: 8px; margin-bottom: 24px; }
.steps li {
  font-family: "Space Grotesk", sans-serif; font-size: 1.15rem;
  color: #4b5563; transition: color .3s, transform .3s;
}
.steps li span { font-size: .8rem; margin-right: 10px; color: inherit; }
.steps li.done { color: var(--muted); }
.steps li.active { color: var(--text); transform: translateX(8px); }
.steps li.active span { color: var(--accent); }
.scroll-hint { color: var(--muted); font-size: .9rem; transition: opacity .3s; }
.scroll-hint.swap { opacity: 0; }
.build[data-stage="4"] .scroll-hint { color: var(--accent); }
.build[data-stage="4"] .scroll-hint .arrow { display: none; }
.scroll-hint .arrow { display: inline-block; color: var(--accent); animation: nudge 1.4s ease-in-out infinite; }
@keyframes nudge { 50% { transform: translateY(4px); } }

/* Particle stage: particles form a new shape at each step, then become a real site */
.stage { position: relative; width: 100%; aspect-ratio: 4 / 3; }
.particles { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.site {
  position: absolute; inset: 0; opacity: 0;
  display: grid; grid-template-rows: auto auto 1fr auto;
  background: var(--bg-2); border: 1px solid rgba(74, 222, 128, .35); border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .45), 0 0 60px rgba(74, 222, 128, .12);
}
.site-bar { display: flex; align-items: center; gap: 6px; padding: 9px 12px; border-bottom: 1px solid var(--line); font-size: .78rem; color: var(--muted); }
.site-bar > i { width: 10px; height: 10px; border-radius: 50%; background: #3a4150; }
.site-bar .url { flex: 1; margin-left: 8px; }
.status { display: flex; align-items: center; gap: 6px; color: var(--accent); font-weight: 600; }
.status b { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(74,222,128,.6); animation: pulse 1.8s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 8px rgba(74,222,128,0); } 100% { box-shadow: 0 0 0 0 rgba(74,222,128,0); } }
.site-hero { margin: 10px 10px 0; border-radius: 10px; padding: 6% 6%; background: linear-gradient(135deg, #14532d, #0c4a6e); }
.site-hero strong { display: block; font-family: "Space Grotesk", sans-serif; font-size: clamp(1rem, 2.4vw, 1.7rem); line-height: 1.1; margin-bottom: 12px; }
.site-hero span { background: var(--warm); color: #231500; font-size: .78rem; font-weight: 600; padding: 5px 13px; border-radius: 999px; }
.site-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 10px; }
.site-cards div { background: #1c2230; border-radius: 8px; display: grid; place-items: center; font-size: .85rem; font-weight: 600; }

/* Stage 4: maintain — health panel */
.health {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 0 10px;
  font-size: .75rem; color: var(--muted);
  max-height: 0; opacity: 0; overflow: hidden;
  transition: max-height .6s, opacity .6s, margin .6s;
}
.health div { background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; }
.health strong { display: block; color: var(--accent); font-size: 1rem; }
.build[data-stage="4"] .health { max-height: 140px; opacity: 1; margin-bottom: 10px; }

/* ---------- Sections ---------- */
.section { max-width: var(--max); margin: 0 auto; padding: 110px clamp(16px, 4vw, 40px) 40px; }
.section h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); margin-bottom: 36px; max-width: 700px; }
.lead { color: var(--muted); font-size: 1.1rem; max-width: 640px; margin: -18px 0 36px; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.card {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px; position: relative;
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: #3a4556; transform: translateY(-3px); }
.card h3 { font-size: 1.3rem; margin-bottom: 10px; }
.card p { color: var(--muted); }
.icon { font-size: 1.5rem; color: var(--accent); margin-bottom: 14px; }

.work { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.work-shot { height: 220px; display: flex; align-items: flex-end; padding: 22px; position: relative; }
.shot-title { font-family: "Space Grotesk", sans-serif; font-weight: 700; font-size: 1.8rem; color: #fff; text-shadow: 0 2px 20px rgba(0,0,0,.4); }
.shot-plumb { background: radial-gradient(circle at 80% 20%, #38bdf8 0, transparent 45%), linear-gradient(135deg, #0c4a6e, #082f49); }
.shot-tax { background: radial-gradient(circle at 80% 20%, #fbbf24 0, transparent 45%), linear-gradient(135deg, #78350f, #1c1917); }
.shot-tile { background: radial-gradient(circle at 80% 20%, #2dd4bf 0, transparent 45%), linear-gradient(135deg, #134e4a, #0f172a); }
.work-body { padding: 24px 28px 28px; }
.work-body h3 { font-size: 1.3rem; margin-bottom: 8px; }
.work-body p { color: var(--muted); }
.tags { list-style: none; display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
.tags li { font-size: .78rem; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }

.plan ul { list-style: none; display: grid; gap: 10px; margin-top: 12px; }
.plan li { color: var(--muted); padding-left: 24px; position: relative; }
.plan li::before { content: "✓"; color: var(--accent); position: absolute; left: 0; }
.plan.featured { border-color: var(--accent); }
.badge {
  position: absolute; top: -12px; right: 20px;
  background: var(--accent); color: #06220f;
  font-size: .72rem; font-weight: 700; padding: 3px 10px; border-radius: 999px;
}
.note { color: var(--muted); margin-top: 24px; }
.note a { color: var(--accent); }

.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; padding-bottom: 100px; }
.contact .lead { margin-top: -18px; }
.form { display: grid; gap: 16px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.form label { display: grid; gap: 6px; font-size: .9rem; color: var(--muted); }
.form input, .form textarea {
  font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px; padding: 11px 14px;
}
.form input:focus, .form textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }

.footer {
  max-width: var(--max); margin: 0 auto;
  display: flex; justify-content: space-between;
  padding: 28px clamp(16px, 4vw, 40px); border-top: 1px solid var(--line);
  color: var(--muted); font-size: .9rem;
}
.footer a { text-decoration: none; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .build-sticky { grid-template-columns: 1fr; align-content: center; gap: 20px; padding-top: 72px; }
  .build h1 { margin-bottom: 14px; font-size: 2rem; }
  .steps { grid-auto-flow: column; justify-content: start; gap: 14px; }
  .steps li { font-size: .9rem; }
  .steps li span { display: none; }
  .steps li.active { transform: none; }
  .scroll-hint { font-size: .85rem; margin-top: -4px; }
  .site-bar { font-size: .7rem; }
  .site-hero strong { margin-bottom: 8px; }
  .site-cards div { font-size: .75rem; }
  .health { font-size: .65rem; gap: 6px; }
  .health strong { font-size: .85rem; }
  .grid-3, .grid-2, .contact { grid-template-columns: 1fr; }
  .nav nav a:not(.btn) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .build { height: auto; }
  .build-sticky { position: static; height: auto; min-height: 100vh; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}