/* ============== RESET & TOKENS ============== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0e0a;
  --bg-elev: #111611;
  --bg-card: #161c16;
  --bg-card-hover: #1c241c;
  --border: rgba(118, 185, 0, 0.15);
  --border-strong: rgba(118, 185, 0, 0.35);
  --text: #e8efe8;
  --text-dim: #8a978a;
  --text-faint: #5a655a;
  --accent: #76b900;        /* NVIDIA green */
  --accent-bright: #9aef10;
  --accent-soft: rgba(118, 185, 0, 0.1);

  /* Stage colors */
  --c-design: #c084fc;
  --c-foundry: #60a5fa;
  --c-memory: #f59e0b;
  --c-package: #76b900;
  --c-board: #34d399;
  --c-tray: #f472b6;
  --c-rack: #fb7185;
  --c-deliver: #fbbf24;

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --radius: 8px;
  --radius-lg: 14px;
}

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

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* ============== HEADER ============== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: rgba(10, 14, 10, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.logo { display: flex; align-items: center; gap: 10px; color: var(--accent); }
.logo-text { font-family: var(--font-mono); font-size: 13px; font-weight: 600; letter-spacing: 0.08em; color: var(--text); }
.logo-sub { color: var(--text-faint); font-weight: 400; }
.header-nav { display: flex; gap: 28px; }
.header-nav a {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.header-nav a:hover { color: var(--accent); }
@media (max-width: 720px) { .header-nav { display: none; } .header { padding: 14px 20px; } }

/* ============== HERO ============== */
.hero {
  position: relative;
  padding: 100px 32px 80px;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 80%);
  opacity: 0.6;
  pointer-events: none;
}
.hero-content { position: relative; max-width: 1100px; margin: 0 auto; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--accent);
  padding: 6px 12px;
  background: var(--accent-soft);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  margin-bottom: 24px;
}
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

.hero h1 {
  font-size: clamp(36px, 6vw, 76px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.accent { color: var(--accent); }
.hero-sub {
  max-width: 720px;
  font-size: 18px;
  color: var(--text-dim);
  margin-bottom: 40px;
}
.hero-stats { display: flex; gap: 48px; flex-wrap: wrap; margin-bottom: 40px; }
.stat .stat-num { font-family: var(--font-mono); font-size: 28px; font-weight: 600; color: var(--text); }
.stat .stat-label { font-size: 12px; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.08em; }
.cta {
  padding: 14px 28px;
  background: var(--accent);
  color: #0a0e0a;
  font-weight: 600;
  border-radius: var(--radius);
  font-size: 15px;
  transition: all 0.2s;
}
.cta:hover { background: var(--accent-bright); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(118,185,0,0.3); }

/* ============== SECTION ============== */
.section-head { max-width: 800px; margin: 0 auto 48px; padding: 0 32px; text-align: center; }
.section-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.15em;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.section-head p { color: var(--text-dim); font-size: 16px; }
.section-head .hint {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
}
.section-head .hint::before { content: '✋'; font-size: 13px; }

/* ============== FLOW ============== */
.flow-section { padding: 80px 0; border-bottom: 1px solid var(--border); }
.flow-track {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 32px 40px;
  overflow-x: auto;
}
.flow-line {
  position: absolute;
  top: 48px;
  left: 80px;
  right: 80px;
  height: 2px;
  background: var(--border);
}
.flow-progress {
  position: absolute;
  top: 48px;
  left: 80px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-design), var(--c-foundry), var(--c-memory), var(--c-package), var(--c-board), var(--c-tray), var(--c-rack), var(--c-deliver));
  width: 0;
  transition: width 0.6s ease;
  box-shadow: 0 0 10px var(--accent);
}

.stage-row {
  position: relative;
  display: grid;
  grid-template-columns: repeat(8, minmax(140px, 1fr));
  gap: 12px;
  min-width: 1200px;
}

.stage-node {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 20px;
  cursor: pointer;
  transition: transform 0.2s;
  user-select: none;
}
.stage-node:hover { transform: translateY(-4px); }
.stage-node:hover .stage-bubble { box-shadow: 0 0 16px var(--stage-color, var(--accent)); }
.stage-node:hover .stage-name { color: var(--stage-color, var(--accent)); }

.stage-bubble {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--stage-color, var(--border-strong));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 14px;
  color: var(--stage-color, var(--text));
  margin-bottom: 16px;
  transition: all 0.3s;
  z-index: 2;
}
.stage-node.active .stage-bubble {
  background: var(--stage-color, var(--accent));
  color: #0a0e0a;
  box-shadow: 0 0 24px var(--stage-color, var(--accent));
  transform: scale(1.1);
}
.stage-node.visited .stage-bubble { background: var(--stage-color, var(--accent)); color: #0a0e0a; }

.stage-name {
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  color: var(--text);
  margin-bottom: 4px;
  line-height: 1.2;
}
.stage-meta { font-family: var(--font-mono); font-size: 10px; color: var(--text-faint); letter-spacing: 0.08em; text-transform: uppercase; }

/* DETAIL */
.stage-detail {
  max-width: 1100px;
  margin: 40px auto 0;
  padding: 0 32px;
}
.detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 36px;
  animation: fadeUp 0.5s ease;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 800px) { .detail-card { grid-template-columns: 1fr; padding: 24px; } }

.detail-left .detail-num {
  font-family: var(--font-mono);
  font-size: 56px;
  font-weight: 700;
  color: var(--stage-color, var(--accent));
  line-height: 1;
  margin-bottom: 12px;
}
.detail-left h3 { font-size: 28px; font-weight: 700; margin-bottom: 16px; letter-spacing: -0.01em; }
.detail-left p { color: var(--text-dim); font-size: 15px; margin-bottom: 24px; }

.detail-specs { display: flex; flex-direction: column; gap: 8px; }
.detail-spec {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 12px;
}
.detail-spec span:first-child { color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.08em; }
.detail-spec span:last-child { color: var(--text); font-weight: 600; }

.detail-right h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.partner-pills { display: flex; flex-direction: column; gap: 10px; }
.partner-pill {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.2s;
}
.partner-pill:hover { border-color: var(--stage-color, var(--accent)); background: var(--bg-card-hover); }
.partner-pill .ppin {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--stage-color, var(--accent));
  flex-shrink: 0;
}
.partner-pill .pinfo { flex: 1; }
.partner-pill .pname { font-weight: 600; font-size: 14px; }
.partner-pill .prole { font-size: 12px; color: var(--text-dim); }
.partner-pill .pflag { font-family: var(--font-mono); font-size: 11px; color: var(--text-faint); letter-spacing: 0.08em; }

/* ============== PARTNERS ============== */
.partners-section { padding: 80px 32px; border-bottom: 1px solid var(--border); }
.partner-filters {
  max-width: 1200px;
  margin: 0 auto 32px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}
.filter-btn {
  padding: 8px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all 0.2s;
  cursor: pointer;
}
.filter-btn:hover { color: var(--text); border-color: var(--border-strong); }
.filter-btn.active { background: var(--accent); color: #0a0e0a; border-color: var(--accent); }

.partner-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.partner-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}
.partner-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--stage-color, var(--accent));
}
.partner-card:hover { background: var(--bg-card-hover); border-color: var(--stage-color, var(--accent)); transform: translateY(-3px); }
.partner-card.hidden { display: none; }
.pc-stage { font-family: var(--font-mono); font-size: 10px; color: var(--stage-color, var(--accent)); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 12px; }
.pc-name { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.pc-country { font-family: var(--font-mono); font-size: 11px; color: var(--text-faint); margin-bottom: 12px; }
.pc-role { font-size: 13px; color: var(--text-dim); line-height: 1.5; }
.pc-share {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.pc-share-label { font-family: var(--font-mono); font-size: 10px; color: var(--text-faint); letter-spacing: 0.08em; text-transform: uppercase; }
.pc-share-val { font-family: var(--font-mono); font-size: 14px; font-weight: 600; color: var(--stage-color, var(--accent)); }

/* ============== ASSEMBLY ============== */
.assembly-section { padding: 80px 32px; border-bottom: 1px solid var(--border); }
.assembly-stage {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 40px;
}
@media (max-width: 900px) { .assembly-stage { grid-template-columns: 1fr; } }

.rack-viewer { display: flex; justify-content: center; align-items: flex-start; }
.rack-frame {
  width: 280px;
  background: linear-gradient(180deg, #1a1f1a, #0d110d);
  border: 2px solid #2a3a2a;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.04);
}
.rack-header {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  text-align: center;
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.08em;
}
.rack-slots {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-height: 540px;
}
.rack-slot {
  height: 28px;
  background: #0a0e0a;
  border: 1px solid #1f2a1f;
  border-radius: 3px;
  display: flex;
  align-items: center;
  padding: 0 8px;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-faint);
  letter-spacing: 0.05em;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}
.rack-slot.filled {
  background: linear-gradient(90deg, rgba(118,185,0,0.22), rgba(118,185,0,0.08));
  border-color: var(--accent);
  color: var(--accent-bright);
  box-shadow: inset 0 0 16px rgba(118,185,0,0.25), 0 0 8px rgba(118,185,0,0.15);
  font-weight: 600;
}
.rack-slot.filling { animation: slideIn 0.6s ease; }
@keyframes slideIn { from { transform: translateX(-100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
.rack-slot .slot-led {
  width: 6px; height: 6px;
  background: #2a3a2a;
  border-radius: 50%;
  margin-right: 8px;
}
.rack-slot.filled .slot-led {
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
  animation: blink 1.5s infinite;
}
@keyframes blink { 0%, 60% { opacity: 1; } 80% { opacity: 0.4; } }
.rack-footer {
  display: flex;
  justify-content: space-between;
  padding-top: 12px;
  margin-top: 12px;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
}
.rack-status { color: var(--accent); }

.assembly-controls { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; }
.control-header {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.build-step {
  font-size: 16px;
  font-weight: 500;
  min-height: 50px;
  margin-bottom: 20px;
  color: var(--text);
}
.build-step strong { color: var(--accent); }
.build-progress {
  height: 6px;
  background: var(--bg-elev);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 20px;
}
.build-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-bright));
  width: 0;
  transition: width 0.4s ease;
  box-shadow: 0 0 12px var(--accent);
}
.control-buttons { display: flex; gap: 10px; margin-bottom: 20px; }
.btn-play, .btn-reset {
  flex: 1;
  padding: 12px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  transition: all 0.2s;
}
.btn-play { background: var(--accent); color: #0a0e0a; }
.btn-play:hover { background: var(--accent-bright); }
.btn-play.playing { background: var(--bg-elev); color: var(--accent); border: 1px solid var(--accent); }
.btn-reset { background: var(--bg-elev); color: var(--text-dim); border: 1px solid var(--border); }
.btn-reset:hover { color: var(--text); border-color: var(--border-strong); }

.build-log {
  max-height: 240px;
  overflow-y: auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  color: var(--text-dim);
}
.log-line { padding: 2px 0; }
.log-line.success { color: var(--accent); }
.log-line .ts { color: var(--text-faint); margin-right: 8px; }

/* ============== CUSTOMERS ============== */
.customers-section { padding: 80px 32px; border-bottom: 1px solid var(--border); }
.delivery-flow { max-width: 1200px; margin: 0 auto; }

.delivery-journey {
  display: grid;
  grid-template-columns: 1fr 2.4fr 1fr;
  gap: 24px;
  align-items: center;
  margin-bottom: 48px;
}
@media (max-width: 800px) {
  .delivery-journey { grid-template-columns: 1fr; gap: 16px; }
}
.journey-point {
  text-align: center;
  padding: 20px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
}
.journey-point.right { border-color: var(--accent); box-shadow: 0 0 16px rgba(118,185,0,0.1); }
.jp-label { font-family: var(--font-mono); font-size: 10px; color: var(--text-faint); letter-spacing: 0.15em; }
.jp-name { font-size: 17px; font-weight: 700; color: var(--text); margin-top: 6px; }
.jp-sub { font-size: 12px; color: var(--text-dim); margin-top: 4px; }

.delivery-path { position: relative; }
.truck-track {
  position: relative;
  height: 70px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
/* Road dashed line */
.truck-track::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0; right: 0;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--border-strong) 0 14px, transparent 14px 28px);
  transform: translateY(-50%);
  animation: roadScroll 1.2s linear infinite;
}
@keyframes roadScroll {
  0% { background-position: 0 0; }
  100% { background-position: -28px 0; }
}
.truck {
  position: absolute;
  top: 50%;
  left: -10%;
  transform: translateY(-50%);
  width: 72px;
  height: 36px;
  filter: drop-shadow(0 4px 8px rgba(118,185,0,0.25));
  animation: drive 7s linear infinite;
}
@keyframes drive {
  0%   { left: -10%; }
  100% { left: 110%; }
}
.truck .wheel {
  transform-box: fill-box;
  transform-origin: center;
  animation: roll 0.5s linear infinite;
}
@keyframes roll {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
.path-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}

.customer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 48px;
}
.customer-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all 0.2s;
}
.customer-card:hover { border-color: var(--accent); background: var(--bg-card-hover); }
.cc-type { font-family: var(--font-mono); font-size: 10px; color: var(--accent); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 8px; }
.cc-name { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.cc-deploy { font-size: 13px; color: var(--text-dim); }
.cc-scale { margin-top: 12px; font-family: var(--font-mono); font-size: 12px; color: var(--accent); }

.delivery-stats {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
}
.dstat { text-align: center; }
.dstat-num { font-family: var(--font-mono); font-size: 28px; font-weight: 700; color: var(--accent); }
.dstat-label { font-size: 12px; color: var(--text-dim); margin-top: 4px; letter-spacing: 0.04em; }

/* ============== FOOTER ============== */
.footer { padding: 48px 32px; background: var(--bg-elev); }
.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } }
.footer-title { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.footer-sub { color: var(--text-dim); font-size: 13px; }
.footer-label { font-family: var(--font-mono); font-size: 11px; color: var(--text-faint); letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 12px; }
.footer-sources { display: flex; flex-direction: column; gap: 6px; }
.footer-sources a { font-size: 13px; color: var(--text-dim); transition: color 0.2s; }
.footer-sources a:hover { color: var(--accent); }
.footer-meta div:last-child { font-size: 13px; color: var(--text-dim); }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }