:root {
  --bg: #070b14;
  --bg-2: #0d1524;
  --panel: rgba(12, 22, 40, 0.92);
  --border: rgba(56, 189, 248, 0.28);
  --cyan: #38bdf8;
  --cyan-2: #22d3ee;
  --green: #34d399;
  --orange: #fb923c;
  --red: #f87171;
  --text: #e8eef8;
  --muted: #8ba0bc;
  --a: #fb923c;
  --b: #38bdf8;
  --c: #34d399;
  --radius: 14px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 70% -10%, #123056 0%, var(--bg) 55%);
  color: var(--text);
  line-height: 1.5;
}
a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--cyan-2); }
em { color: var(--cyan-2); font-style: normal; }

.sg-banner {
  background: #1e293b;
  color: #fbbf24;
  font-size: 0.8rem;
  text-align: center;
  padding: 0.45rem 1rem;
  border-bottom: 1px solid #334155;
}
.sg-note, .disclaimer, .muted { color: var(--muted); font-size: 0.85rem; }
.placeholder { color: #fbbf24; }

.nav {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 0.85rem 1.4rem;
  background: rgba(7,11,20,0.85); backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.brand { display: flex; align-items: center; gap: 0.6rem; color: var(--text); font-weight: 700; letter-spacing: 0.02em; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--cyan), #6366f1);
  box-shadow: 0 0 18px rgba(56,189,248,0.45);
}
.nav-links { display: flex; gap: 1.1rem; align-items: center; }
.nav-links a { color: var(--muted); font-size: 0.95rem; }
.nav-links a:hover { color: var(--text); }
.nav-toggle { display: none; background: none; border: 0; color: var(--text); font-size: 1.4rem; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); background: transparent; color: var(--text);
  border-radius: 999px; padding: 0.65rem 1.15rem; cursor: pointer; font: inherit;
}
.btn-sm { padding: 0.4rem 0.85rem; font-size: 0.85rem; }
.btn-primary { background: linear-gradient(135deg, #0ea5e9, #6366f1); border: 0; color: #fff; }
.btn-primary:hover { filter: brightness(1.08); color: #fff; }
.btn-ghost { background: rgba(255,255,255,0.04); }

.hero {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 2rem;
  padding: 3rem 1.5rem 2rem; max-width: 1200px; margin: 0 auto;
}
.eyebrow { color: var(--cyan); text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.75rem; margin: 0 0 0.6rem; }
.hero h1 { font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.1; margin: 0 0 1rem; }
.lead { color: var(--muted); font-size: 1.05rem; max-width: 36rem; }
.hero-cta { display: flex; gap: 0.75rem; flex-wrap: wrap; margin: 1.4rem 0; }
.stats-row { display: flex; gap: 1.5rem; flex-wrap: wrap; margin-top: 1.5rem; }
.stats-row strong { display: block; font-size: 1.6rem; color: var(--cyan-2); }
.stats-row span { color: var(--muted); font-size: 0.8rem; }

.hero-visual { position: relative; }
.visual-placeholder {
  position: relative; border: 1px solid var(--border); border-radius: 18px;
  overflow: hidden; background: #050914;
  box-shadow: 0 20px 60px rgba(0,0,0,0.45), inset 0 0 40px rgba(56,189,248,0.08);
}
#heroCanvas, #warehouseCanvas { display: block; width: 100%; height: auto; }
.hud-chip {
  position: absolute; top: 12px; right: 12px;
  background: rgba(0,0,0,0.65); border: 1px solid var(--border);
  border-radius: 999px; padding: 0.3rem 0.7rem; font-size: 0.75rem;
}
.hud-chip .dot, .live .dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--red); margin-right: 6px; box-shadow: 0 0 8px var(--red);
  animation: pulse 1.4s infinite;
}
@keyframes pulse { 50% { opacity: 0.4; } }
.hud-card {
  position: absolute; left: 12px; right: 12px; bottom: 12px;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 12px; padding: 0.85rem 1rem;
}
.hud-label { color: var(--cyan); font-size: 0.7rem; letter-spacing: 0.08em; }
.hud-row { display: flex; justify-content: space-between; align-items: baseline; font-size: 1.15rem; }
.hud-meta { color: var(--muted); font-size: 0.75rem; margin-top: 0.25rem; }

.section-head { max-width: 1200px; margin: 0 auto 1.5rem; padding: 0 1.5rem; }
.section-head h2 { margin: 0 0 0.4rem; font-size: clamp(1.5rem, 3vw, 2.1rem); }

.demo { padding: 2.5rem 0 3rem; }
.demo-shell {
  max-width: 1280px; margin: 0 auto; padding: 0 1rem;
  display: grid; grid-template-columns: 260px 1fr 260px; gap: 0.85rem;
}
.demo-sidebar .panel, .panel {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 0.9rem; margin-bottom: 0.75rem;
}
.panel h3 { margin: 0 0 0.6rem; font-size: 0.95rem; }
.big-metric { font-size: 2.4rem; font-weight: 700; color: var(--cyan-2); line-height: 1; }
.big-metric small { font-size: 1.1rem; }
.metric-list { list-style: none; padding: 0; margin: 0.8rem 0 0; }
.metric-list li { display: flex; justify-content: space-between; padding: 0.35rem 0; border-bottom: 1px solid rgba(255,255,255,0.05); font-size: 0.9rem; }
.level-bars .bar-row { display: grid; grid-template-columns: 48px 1fr 36px; gap: 0.4rem; align-items: center; margin: 0.35rem 0; font-size: 0.8rem; }
.level-bars .fill { height: 8px; border-radius: 999px; background: rgba(255,255,255,0.08); overflow: hidden; }
.level-bars .fill > i { display: block; height: 100%; background: linear-gradient(90deg, var(--cyan), var(--green)); }
#skuSearch {
  width: 100%; margin: 0.4rem 0 0.6rem; padding: 0.55rem 0.7rem;
  border-radius: 10px; border: 1px solid var(--border); background: #081018; color: var(--text);
}
.abc-legend { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-bottom: 0.5rem; }
.tag { font-size: 0.72rem; padding: 0.2rem 0.5rem; border-radius: 999px; border: 1px solid; }
.tag.a { color: var(--a); border-color: var(--a); }
.tag.b { color: var(--b); border-color: var(--b); }
.tag.c { color: var(--c); border-color: var(--c); }
.compare { display: grid; gap: 0.5rem; margin: 0.7rem 0; }
.compare div { display: flex; justify-content: space-between; font-size: 0.9rem; }
.compare .good { color: var(--green); }
.steps { margin: 0.7rem 0 0; padding-left: 1.1rem; color: var(--muted); font-size: 0.85rem; }
.log { list-style: none; padding: 0; margin: 0; max-height: 180px; overflow: auto; font-size: 0.8rem; color: var(--muted); }
.log li { padding: 0.3rem 0; border-bottom: 1px solid rgba(255,255,255,0.05); }

.demo-stage {
  position: relative; background: #050914; border: 1px solid var(--border);
  border-radius: 16px; overflow: hidden; min-height: 520px;
}
.stage-toolbar {
  display: flex; justify-content: space-between; gap: 0.5rem; flex-wrap: wrap;
  padding: 0.6rem 0.75rem; border-bottom: 1px solid rgba(255,255,255,0.06);
  background: rgba(8,16,28,0.9);
}
.toolbar-left, .toolbar-right { display: flex; gap: 0.4rem; align-items: center; flex-wrap: wrap; }
.chip {
  border: 1px solid var(--border); background: transparent; color: var(--muted);
  border-radius: 999px; padding: 0.3rem 0.7rem; font-size: 0.78rem; cursor: pointer;
}
.chip.active, .chip:hover { color: var(--text); border-color: var(--cyan); background: rgba(56,189,248,0.1); }
.clock { color: var(--cyan); font-variant-numeric: tabular-nums; font-size: 0.8rem; margin-left: 0.4rem; }
.stage-footer {
  display: flex; justify-content: space-between; padding: 0.45rem 0.8rem;
  color: var(--muted); font-size: 0.75rem; border-top: 1px solid rgba(255,255,255,0.05);
}
.rack-pop {
  position: absolute; top: 64px; right: 12px; width: 220px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 0.8rem;
}
.rack-pop .close { position: absolute; top: 6px; right: 8px; background: none; border: 0; color: var(--muted); cursor: pointer; }

.features, .products, .methods, .process, .contact { padding: 3rem 0; }
.cards-3, .product-grid, .method-grid {
  max-width: 1200px; margin: 0 auto; padding: 0 1.5rem;
  display: grid; gap: 1rem;
}
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.product-grid { grid-template-columns: repeat(2, 1fr); }
.method-grid { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.card, .product, .method {
  background: var(--bg-2); border: 1px solid rgba(255,255,255,0.07);
  border-radius: 16px; padding: 1.2rem;
}
.card .num { color: var(--cyan); font-weight: 700; }
.product h3 { margin: 0.3rem 0; }
.product .tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0.6rem 0; }
.product .tags span {
  font-size: 0.72rem; padding: 0.15rem 0.45rem; border-radius: 999px;
  background: rgba(56,189,248,0.12); color: var(--cyan);
}

.contact-form, .contact-list {
  max-width: 640px; margin: 0 auto; padding: 0 1.5rem;
}
.contact-form label { display: block; margin-bottom: 0.7rem; color: var(--muted); }
.contact-form textarea {
  width: 100%; margin-top: 0.4rem; padding: 0.8rem;
  border-radius: 12px; border: 1px solid var(--border); background: #081018; color: var(--text);
}
.contact-list { list-style: none; }
.form-note { color: #fbbf24; }

.footer {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 2rem 1.5rem; display: grid; gap: 1rem;
  max-width: 1200px; margin: 0 auto;
}
.footer-links { display: flex; gap: 1rem; }

@media (max-width: 1100px) {
  .demo-shell { grid-template-columns: 1fr; }
  .demo-sidebar.right { order: 3; }
}
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
  .cards-3, .product-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute; top: 58px; right: 0; left: 0;
    background: #0b1220; padding: 1rem; border-bottom: 1px solid var(--border);
  }
  .nav-toggle { display: block; }
}