:root {
  --bg: #0a0e14;
  --bg-2: #0d121b;
  --panel: #10161f;
  --panel-2: #151d29;
  --panel-3: #1a2432;
  --line: rgba(148, 163, 184, 0.14);
  --line-strong: rgba(148, 163, 184, 0.28);
  --text: #e8edf4;
  --text-dim: #9aa7b8;
  --text-faint: #64718a;
  --accent: #2dd4bf;
  --accent-2: #5eead4;
  --accent-glow: rgba(45, 212, 191, 0.15);
  --green: #34d399;
  --amber: #fbbf24;
  --violet: #a78bfa;
  --rose: #fb7185;
  --blue: #60a5fa;
  --mono: "SFMono-Regular", "JetBrains Mono", "Cascadia Code", ui-monospace, "Consolas", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
::selection { background: var(--accent); color: #04211c; }

/* ---------- background grid ---------- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(148,163,184,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,163,184,0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 40%, transparent 100%);
}
.bg-glow {
  position: fixed;
  z-index: 0;
  pointer-events: none;
  width: 900px; height: 900px;
  top: -350px; left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(45,212,191,0.10) 0%, transparent 60%);
  filter: blur(20px);
}

/* ---------- shell ---------- */
.wrap { position: relative; z-index: 1; max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.wrap-wide { position: relative; z-index: 1; max-width: 1320px; margin: 0 auto; padding: 0 24px; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(10,14,20,0.72);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand .mark { width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; }
.brand .mark svg { width: 100%; height: 100%; }
.brand .name { font-family: var(--mono); font-size: 14px; letter-spacing: 0.04em; font-weight: 600; }
.brand .name span { color: var(--accent); }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { font-size: 13.5px; color: var(--text-dim); font-family: var(--mono); letter-spacing: 0.02em; transition: color .15s; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  font-family: var(--mono); font-size: 12.5px;
  padding: 7px 14px; border-radius: 8px;
  background: var(--accent); color: #04211c; font-weight: 600;
  transition: transform .12s, box-shadow .12s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 20px var(--accent-glow); }
@media (max-width: 720px) { .nav-links { display: none; } }

/* ---------- hero ---------- */
.hero { padding: 96px 0 72px; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-glow);
  border: 1px solid rgba(45,212,191,0.3);
  padding: 5px 12px; border-radius: 999px; margin-bottom: 22px;
}
.hero-kicker .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.3} }
.hero h1 {
  font-size: clamp(2.4rem, 5.6vw, 4.2rem);
  line-height: 1.04; letter-spacing: -0.02em; font-weight: 700;
  max-width: 15ch;
}
.hero h1 .grad {
  background: linear-gradient(100deg, var(--accent-2), var(--blue) 60%, var(--violet));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lede { margin-top: 20px; font-size: 18px; color: var(--text-dim); max-width: 60ch; }
.hero-actions { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  font-family: var(--mono); font-size: 14px; font-weight: 600;
  padding: 12px 22px; border-radius: 10px; display: inline-flex; align-items: center; gap: 8px;
  transition: transform .12s, box-shadow .15s, background .15s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent); color: #04211c; }
.btn-primary:hover { box-shadow: 0 8px 30px var(--accent-glow); }
.btn-ghost { border: 1px solid var(--line-strong); color: var(--text); background: rgba(255,255,255,0.02); }
.btn-ghost:hover { background: rgba(255,255,255,0.05); }

/* ---------- stats ---------- */
.stats {
  margin-top: 60px; display: grid;
  grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
}
.stat { background: var(--panel); padding: 20px 22px; }
.stat .num { font-family: var(--mono); font-size: 30px; font-weight: 600; color: var(--text); letter-spacing: -0.01em; }
.stat .num em { color: var(--accent); font-style: normal; }
.stat .lbl { font-size: 12.5px; color: var(--text-faint); margin-top: 4px; font-family: var(--mono); }
@media (max-width: 720px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* ---------- sections ---------- */
section { padding: 72px 0; position: relative; z-index: 1; }
.section-head { margin-bottom: 40px; max-width: 70ch; }
.section-head .kicker {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 12px; display: flex; align-items: center; gap: 10px;
}
.section-head .kicker::before { content: ""; width: 22px; height: 1px; background: var(--accent); }
.section-head h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); letter-spacing: -0.02em; line-height: 1.12; }
.section-head p { margin-top: 12px; color: var(--text-dim); font-size: 16px; }

.divider { height: 1px; background: var(--line); border: 0; }

/* ---------- project grid ---------- */
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 28px; }
.filter-btn {
  font-family: var(--mono); font-size: 12.5px;
  padding: 7px 15px; border-radius: 999px;
  background: var(--panel); border: 1px solid var(--line);
  color: var(--text-dim); cursor: pointer; transition: all .15s;
}
.filter-btn:hover { color: var(--text); border-color: var(--line-strong); }
.filter-btn.active { background: var(--accent-glow); border-color: rgba(45,212,191,0.4); color: var(--accent-2); }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 18px; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 22px; display: flex; flex-direction: column; gap: 12px;
  transition: transform .14s, border-color .14s, background .14s, box-shadow .14s;
  position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity .2s;
  background: radial-gradient(400px circle at var(--mx,50%) var(--my,0%), rgba(45,212,191,0.06), transparent 60%);
}
.card:hover { transform: translateY(-3px); border-color: var(--line-strong); box-shadow: 0 14px 40px rgba(0,0,0,0.4); }
.card:hover::before { opacity: 1; }
.card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.card h3 { font-size: 17px; font-weight: 650; letter-spacing: -0.01em; }
.card h3 .sub { display: block; font-family: var(--mono); font-size: 11px; color: var(--text-faint); font-weight: 400; margin-top: 3px; letter-spacing: 0.02em; }
.badge {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 4px 9px; border-radius: 6px; white-space: nowrap; flex-shrink: 0; font-weight: 600;
}
.badge-live { background: rgba(52,211,153,0.12); color: var(--green); border: 1px solid rgba(52,211,153,0.25); }
.badge-live .dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--green); margin-right: 5px; animation: pulse 2s infinite; }
.badge-prototype { background: rgba(251,191,36,0.12); color: var(--amber); border: 1px solid rgba(251,191,36,0.25); }
.badge-internal { background: rgba(148,163,184,0.1); color: var(--text-dim); border: 1px solid var(--line); }
.badge-archived { background: rgba(100,113,138,0.1); color: var(--text-faint); border: 1px solid var(--line); }
.card p { font-size: 14px; color: var(--text-dim); flex-grow: 1; }
.card-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 4px; }
.tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag { font-family: var(--mono); font-size: 10.5px; color: var(--text-faint); background: rgba(148,163,184,0.07); padding: 3px 8px; border-radius: 5px; }
.card-link { font-family: var(--mono); font-size: 12px; color: var(--accent); white-space: nowrap; display: inline-flex; align-items: center; gap: 4px; }
.card-link:hover { color: var(--accent-2); }
.card-link .arr { transition: transform .12s; }
.card-link:hover .arr { transform: translateX(3px); }

/* ---------- live demos ---------- */
.demos { display: grid; grid-template-columns: repeat(auto-fit, minmax(440px, 1fr)); gap: 20px; }
@media (max-width: 560px) { .demos { grid-template-columns: 1fr; } }
.demo {
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px; overflow: hidden;
  display: flex; flex-direction: column; transition: border-color .15s, transform .15s;
}
.demo:hover { border-color: var(--line-strong); }
.demo-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--line); background: var(--panel-2);
}
.demo-bar .l { display: flex; align-items: center; gap: 10px; }
.demo-bar .lights { display: flex; gap: 6px; }
.demo-bar .lights i { width: 10px; height: 10px; border-radius: 50%; display: block; }
.demo-bar .lights i:nth-child(1){background:#ff5f57}.demo-bar .lights i:nth-child(2){background:#febc2e}.demo-bar .lights i:nth-child(3){background:#28c840}
.demo-bar .title { font-family: var(--mono); font-size: 13px; font-weight: 600; }
.demo-bar .title small { display: block; color: var(--text-faint); font-size: 10.5px; font-weight: 400; margin-top: 1px; }
.demo-bar .open { font-family: var(--mono); font-size: 11.5px; color: var(--accent); display: inline-flex; align-items: center; gap: 4px; }
.demo-frame-wrap { position: relative; width: 100%; aspect-ratio: 16 / 10; background: #05080c; }
.demo-frame-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; opacity: 0; transition: opacity .5s; }
.demo-frame-wrap iframe.loaded { opacity: 1; }
.demo-frame-wrap .loading { position: absolute; inset: 0; display: grid; place-items: center; color: var(--text-faint); font-family: var(--mono); font-size: 12px; }
.demo-frame-wrap .loading::before { content: ""; width: 26px; height: 26px; border: 2px solid var(--line-strong); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; position: absolute; }
@keyframes spin { to { transform: rotate(360deg); } }
.demo-launch {
  position: absolute; inset: 0; margin: 0; border: 0; cursor: pointer;
  background:
    radial-gradient(circle at 50% 45%, rgba(45,212,191,0.08), transparent 55%),
    var(--bg-2);
  color: var(--text-dim);
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.04em;
  display: grid; place-items: center; gap: 10px; align-content: center;
  transition: color .15s;
}
.demo-launch .play {
  width: 46px; height: 46px; border-radius: 50%;
  border: 1.5px solid var(--line-strong);
  display: grid; place-items: center;
  transition: border-color .15s, background .15s, transform .15s;
}
.demo-launch .play::before {
  content: ""; display: block;
  border-left: 13px solid var(--text-dim);
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  margin-left: 3px; transition: border-left-color .15s;
}
.demo-launch:hover { color: var(--text); }
.demo-launch:hover .play { border-color: var(--accent); background: var(--accent-glow); transform: scale(1.06); }
.demo-launch:hover .play::before { border-left-color: var(--accent-2); }
.demo-note { padding: 12px 16px; font-size: 12.5px; color: var(--text-faint); font-family: var(--mono); border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 8px; }

/* ---------- capabilities ---------- */
.caps { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; }
.cap { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 24px; transition: border-color .15s, transform .15s; }
.cap:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.cap .ico { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; margin-bottom: 16px; background: var(--accent-glow); color: var(--accent); }
.cap .ico svg { width: 21px; height: 21px; }
.cap h3 { font-size: 16px; font-weight: 650; margin-bottom: 8px; }
.cap p { font-size: 13.5px; color: var(--text-dim); }

/* ---------- approach / quote ---------- */
.quote-band { text-align: center; padding: 84px 0; }
.quote-band blockquote { font-size: clamp(1.4rem, 3vw, 2rem); line-height: 1.35; letter-spacing: -0.01em; max-width: 24ch; margin: 0 auto; font-weight: 600; }
.quote-band blockquote em { color: var(--accent); font-style: normal; }
.quote-band .who { margin-top: 20px; font-family: var(--mono); font-size: 13px; color: var(--text-faint); }

/* ---------- stack ---------- */
.stack-row { display: flex; flex-wrap: wrap; gap: 10px; }
.stack-chip { font-family: var(--mono); font-size: 12.5px; color: var(--text-dim); background: var(--panel); border: 1px solid var(--line); padding: 8px 14px; border-radius: 999px; transition: all .15s; }
.stack-chip:hover { color: var(--text); border-color: var(--line-strong); }

/* ---------- contact ---------- */
.contact { text-align: center; }
.contact h2 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.02em; }
.contact p { color: var(--text-dim); margin-top: 16px; max-width: 50ch; margin-inline: auto; }
.contact .btn { margin-top: 30px; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 40px 0; position: relative; z-index: 1; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer .brand .name { font-size: 13px; }
.footer .meta { font-family: var(--mono); font-size: 12px; color: var(--text-faint); }
.footer .meta a { color: var(--text-dim); }
.footer .meta a:hover { color: var(--accent); }

/* ---------- reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}