/* ═══════════════════════════════════════════════════════════════
  RLAlphaLabs — Stylesheet v2
   Design philosophy: institutional trust > hype
   Less glow, more precision. Specificity = credibility.
   ═══════════════════════════════════════════════════════════════ */

/* ─── Reset ────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ─── Tokens ───────────────────────────────────────────────────── */
:root {
  /* Background layers — deep navy, not pure black (warmer, more trustworthy) */
  --bg0: #02060f;
  --bg1: #060d1c;
  --bg2: #0a1428;
  --bg3: #0f1c34;
  --bg4: rgba(255,255,255,0.03);

  /* Borders */
  --border:     rgba(255,255,255,0.07);
  --border-md:  rgba(255,255,255,0.12);
  --border-hi:  rgba(255,255,255,0.20);

  /* Accents — toned down, not screaming */
  --cyan:    #00c8f0;       /* primary accent */
  --cyan-d:  rgba(0,200,240,0.10);
  --cyan-dd: rgba(0,200,240,0.06);
  --blue:    #6ea8fe;       /* secondary */
  --blue-d:  rgba(110,168,254,0.10);
  --green:   #2dd4a0;       /* success / positive */
  --green-d: rgba(45,212,160,0.10);
  --amber:   #f0b429;       /* speed / performance */
  --amber-d: rgba(240,180,41,0.10);
  --red:     #fb7185;       /* problem / warning */
  --red-d:   rgba(251,113,133,0.10);

  /* Status */
  --done:    #2dd4a0;
  --active:  #6ea8fe;
  --planned: #4a5d7a;

  /* Text */
  --t0:  #f0f4ff;   /* headings */
  --t1:  #c5d0e8;   /* body */
  --t2:  #7a92b4;   /* secondary */
  --t3:  #3d526e;   /* muted */
  --t4:  #1e2d45;   /* faintest */

  /* Type */
  --sans:  'Inter', system-ui, sans-serif;
  --head:  'Space Grotesk', system-ui, sans-serif;
  --mono:  'JetBrains Mono', 'Fira Code', monospace;

  /* Radii */
  --r:  10px;
  --rl: 16px;
  --rx: 24px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --t: 0.25s var(--ease);
}

/* ─── Base ─────────────────────────────────────────────────────── */
html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg0);
  color: var(--t1);
  font-family: var(--sans);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Subtle dot-grid background — precision, structure */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
}

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg1); }
::-webkit-scrollbar-thumb { background: var(--bg3); border-radius: 3px; }

/* ─── Utility ──────────────────────────────────────────────────── */
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

.grad {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mono { font-family: var(--mono); }

.sec-label {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 16px;
  opacity: 0.8;
}

.sec-h2 {
  font-family: var(--head);
  font-size: clamp(30px, 4.5vw, 50px);
  font-weight: 800;
  line-height: 1.12;
  color: var(--t0);
  margin-bottom: 16px;
}

.sec-p {
  font-size: 16px;
  color: var(--t2);
  max-width: 560px;
  margin-bottom: 52px;
  line-height: 1.75;
}
.fine {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--t3);
  font-style: italic;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 13px 28px;
  background: var(--cyan);
  color: var(--bg0);
  font-family: var(--head);
  font-weight: 700;
  font-size: 14px;
  border-radius: var(--r);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: opacity var(--t), transform var(--t);
  letter-spacing: 0.3px;
}
.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }
.btn-primary.full { width: 100%; justify-content: center; font-size: 15px; padding: 15px; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 12px 20px;
  background: transparent;
  color: var(--t2);
  font-family: var(--head);
  font-weight: 500;
  font-size: 14px;
  border-radius: var(--r);
  text-decoration: none;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: color var(--t), border-color var(--t);
}
.btn-ghost:hover { color: var(--t0); border-color: var(--border-md); }

/* ─── Scroll reveal ────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ═══════════════════════════════════════════════════════════════
   TICKER STRIP
   ═══════════════════════════════════════════════════════════════ */
#ticker {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 28px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  z-index: 2000;
  overflow: hidden;
  display: flex;
  align-items: center;
}
.ticker-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  height: 100%;
  padding: 0 16px;
  width: 100%;
  overflow: hidden;
}
.ticker-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--t3);
  white-space: nowrap;
  text-transform: uppercase;
  flex-shrink: 0;
}
.ticker-track {
  display: flex;
  gap: 0;
  animation: ticker-scroll 40s linear infinite;
  white-space: nowrap;
}
.ticker-item {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--t3);
  padding: 0 18px;
  border-right: 1px solid var(--border);
}
.ticker-item .tick-sym { color: var(--t2); margin-right: 4px; }
.ticker-item .tick-up { color: var(--green); }
.ticker-item .tick-dn { color: var(--red); }
@keyframes ticker-scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ═══════════════════════════════════════════════════════════════
   NAV
   ═══════════════════════════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 28px; left: 0; right: 0;
  z-index: 1000;
  transition: background var(--t), border-color var(--t);
  border-bottom: 1px solid transparent;
}
#navbar.scrolled {
  background: rgba(2,6,15,0.92);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom-color: var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-family: var(--head);
  font-size: 17px;
  font-weight: 700;
  color: var(--t0);
}
.logo-mark { color: var(--cyan); font-size: 18px; }
.logo-ai { color: var(--cyan); }

.nav-links { display: flex; align-items: center; gap: 2px; list-style: none; }
.nav-links a {
  display: block;
  padding: 7px 12px;
  color: var(--t2);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  border-radius: 8px;
  transition: color var(--t), background var(--t);
}
.nav-links a:hover { color: var(--t0); background: var(--bg4); }
.nav-links a.nav-cta {
  color: var(--cyan);
  background: var(--cyan-dd);
  border: 1px solid rgba(0,200,240,0.18);
  font-weight: 600;
  margin-left: 6px;
}
.nav-links a.nav-cta:hover { background: var(--cyan-d); }

.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--t1); border-radius: 2px; transition: transform var(--t); }
.mobile-menu { display: none; flex-direction: column; gap: 2px; padding: 8px 24px 16px; border-top: 1px solid var(--border); background: rgba(2,6,15,0.96); backdrop-filter: blur(20px); }
.mobile-menu a { padding: 9px 12px; color: var(--t2); text-decoration: none; font-size: 15px; border-radius: 8px; transition: color var(--t); }
.mobile-menu a:hover { color: var(--t0); }
.mobile-menu a.nav-cta { color: var(--cyan); }
.mobile-menu.open { display: flex; }

/* ═══════════════════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════════════════ */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  overflow: hidden;
}
#heroParticles { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; }

.hero-inner {
  position: relative; z-index: 1;
  max-width: 1120px; margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
}

.hero-pills { display: flex; gap: 10px; margin-bottom: 24px; flex-wrap: wrap; }
.pill {
  padding: 5px 14px;
  border-radius: 100px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.5px;
}
.pill-stage { background: rgba(110,168,254,0.12); border: 1px solid rgba(110,168,254,0.25); color: var(--blue); }
.pill-stage::before { content: '● '; animation: blink 2s step-end infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }
.pill-market { background: var(--bg4); border: 1px solid var(--border); color: var(--t3); }

.hero-h1 {
  font-family: var(--head);
  font-size: clamp(36px, 5.5vw, 62px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--t0);
  margin-bottom: 20px;
}

.hero-p { font-size: 16px; color: var(--t2); line-height: 1.75; margin-bottom: 32px; max-width: 500px; }

/* Hero stats — monospace, precise */
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-bottom: 32px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r);
}
.hstat { flex: 1; min-width: 100px; padding: 16px 20px; text-align: center; }
.hstat-val {
  display: block;
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 500;
  color: var(--cyan);
  line-height: 1.2;
  letter-spacing: -0.5px;
}
.hstat-lbl {
  display: block;
  font-size: 10px;
  color: var(--t3);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 4px;
  font-family: var(--mono);
}
.hstat-sep { width: 1px; background: var(--border); align-self: stretch; flex-shrink: 0; }

.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }

/* Hero chart shell */
.chart-shell {
  background: var(--bg2);
  border: 1px solid var(--border-md);
  border-radius: var(--rl);
  overflow: hidden;
}
.chart-shell-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg3);
}
.shell-dots { display: flex; gap: 5px; }
.shell-dots span { width: 9px; height: 9px; border-radius: 50%; background: var(--border-md); }
.shell-title { font-family: var(--mono); font-size: 11px; color: var(--t3); flex: 1; }
.shell-badge {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  padding: 2px 10px;
  border-radius: 100px;
}
.shell-badge.up { background: var(--green-d); color: var(--green); }
.chart-note { font-family: var(--mono); font-size: 9px; color: var(--t4); padding: 8px 16px; text-align: center; }

.scroll-cue {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  font-size: 20px;
  color: var(--t4);
  animation: scrollbounce 2s infinite;
}
@keyframes scrollbounce { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(8px)} }

/* ═══════════════════════════════════════════════════════════════
   PROBLEM
   ═══════════════════════════════════════════════════════════════ */
#problem { padding: 100px 0; background: var(--bg1); }
.prob-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.prob-card {
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 28px;
  transition: border-color var(--t);
}
.prob-card:hover { border-color: rgba(251,113,133,0.25); }
.prob-num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--red);
  margin-bottom: 14px;
  opacity: 0.7;
}
.prob-card h3 { font-family: var(--head); font-size: 16px; font-weight: 700; color: var(--t0); margin-bottom: 10px; }
.prob-card p { font-size: 13px; color: var(--t2); line-height: 1.7; }

/* ═══════════════════════════════════════════════════════════════
   FEATURES
   ═══════════════════════════════════════════════════════════════ */
#features { padding: 100px 0; background: var(--bg0); }
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }

.feat-card {
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--rl);
  padding: 28px;
  transition: border-color var(--t), transform var(--t);
}
.feat-card:hover { transform: translateY(-3px); }
.feat-card[data-color="cyan"]:hover { border-color: rgba(0,200,240,0.2); }
.feat-card[data-color="blue"]:hover { border-color: rgba(110,168,254,0.2); }
.feat-card[data-color="green"]:hover { border-color: rgba(45,212,160,0.2); }
.feat-card[data-color="amber"]:hover { border-color: rgba(240,180,41,0.2); }

.feat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: 12px;
  margin-bottom: 18px;
}
.cyan-bg  { background: var(--cyan-d);  color: var(--cyan);  }
.blue-bg  { background: var(--blue-d);  color: var(--blue);  }
.green-bg { background: var(--green-d); color: var(--green); }
.amber-bg { background: var(--amber-d); color: var(--amber); }

.feat-card h3 { font-family: var(--head); font-size: 17px; font-weight: 700; color: var(--t0); margin-bottom: 10px; }
.feat-card p { font-size: 13px; color: var(--t2); line-height: 1.75; margin-bottom: 16px; }
.feat-card code { font-family: var(--mono); font-size: 12px; color: var(--cyan); background: var(--cyan-dd); padding: 1px 5px; border-radius: 3px; }

.feat-meta { display: flex; flex-wrap: wrap; gap: 6px; }
.mono-tag {
  font-family: var(--mono);
  font-size: 10px;
  padding: 3px 8px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--t3);
}
.mono-tag.mono-real { color: var(--cyan); border-color: rgba(0,200,240,0.15); background: var(--cyan-dd); }

/* ═══════════════════════════════════════════════════════════════
   PORTFOLIO SAMPLE
   ═══════════════════════════════════════════════════════════════ */
#portfolio-sample { padding: 72px 0; background: var(--bg1); }
.psample-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.psample-left h3 { font-family: var(--head); font-size: 24px; font-weight: 700; color: var(--t0); margin-bottom: 12px; }
.psample-left p { font-size: 14px; color: var(--t2); line-height: 1.75; margin-bottom: 28px; }
.psample-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.pstat {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 14px 16px;
}
.pstat span:first-child {
  display: block;
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 500;
  color: var(--cyan);
  margin-bottom: 4px;
}
.pstat span:last-child { font-size: 11px; color: var(--t3); text-transform: uppercase; letter-spacing: 1px; }

.stock-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.stock-chip {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--t2);
  text-align: center;
  transition: border-color var(--t), color var(--t);
}
.stock-chip:hover { border-color: var(--border-md); color: var(--cyan); }

/* ═══════════════════════════════════════════════════════════════
   PIPELINE
   ═══════════════════════════════════════════════════════════════ */
#pipeline { padding: 100px 0; background: var(--bg0); }
.pipeline { display: flex; flex-direction: column; gap: 0; }

.pipe-step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 28px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}
.pipe-step:last-child { border-bottom: none; }

.pipe-left { display: flex; flex-direction: column; align-items: center; gap: 0; padding-top: 4px; }
.pipe-status {
  width: 32px; height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
  font-family: var(--mono);
}
.pipe-step.done .pipe-status { background: rgba(45,212,160,0.12); color: var(--done); border: 1px solid rgba(45,212,160,0.3); }
.pipe-step.active .pipe-status { background: rgba(110,168,254,0.12); color: var(--active); border: 1px solid rgba(110,168,254,0.3); animation: activepulse 2s infinite; }
.pipe-step.planned .pipe-status { background: var(--bg3); color: var(--planned); border: 1px solid var(--border); }
@keyframes activepulse { 0%,100%{box-shadow:0 0 0 0 rgba(110,168,254,0)} 50%{box-shadow:0 0 0 6px rgba(110,168,254,0.08)} }

.pipe-line { flex: 1; width: 1px; background: var(--border); margin-top: 8px; }
.pipe-step:last-child .pipe-line { display: none; }

.pipe-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.pipe-id { font-family: var(--mono); font-size: 11px; color: var(--t4); }
.pipe-state {
  font-family: var(--mono);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 500;
}
.done-tag  { background: rgba(45,212,160,0.1); color: var(--done); }
.active-tag { background: rgba(110,168,254,0.1); color: var(--active); }
.planned-tag { background: var(--bg3); color: var(--planned); border: 1px solid var(--border); }

.pipe-body h3 { font-family: var(--head); font-size: 18px; font-weight: 700; color: var(--t0); margin-bottom: 8px; }
.pipe-body p { font-size: 14px; color: var(--t2); line-height: 1.75; }
.pipe-step.done .pipe-body h3 { color: var(--t0); }
.pipe-step.planned .pipe-body h3 { color: var(--t2); }

/* ═══════════════════════════════════════════════════════════════
   PERFORMANCE
   ═══════════════════════════════════════════════════════════════ */
#performance { padding: 100px 0; background: var(--bg1); }

.metric-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 36px; }
.mcard {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 24px 20px;
  transition: border-color var(--t);
}
.mcard-label { font-family: var(--mono); font-size: 10px; color: var(--t3); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
.mcard-val {
  font-family: var(--mono);
  font-size: 34px;
  font-weight: 500;
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: -1px;
}
.mcard-val.cyan  { color: var(--cyan); }
.mcard-val.green { color: var(--green); }
.mcard-val.blue  { color: var(--blue); }
.mcard-val.amber { color: var(--amber); }
.mcard-sub { font-size: 11px; color: var(--t3); line-height: 1.5; }

.perf-chart-wrap {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--rl);
  padding: 28px;
}
.perf-chart-hdr { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 24px; flex-wrap: wrap; gap: 16px; }
.perf-chart-hdr h3 { font-family: var(--head); font-size: 16px; font-weight: 700; color: var(--t0); margin-bottom: 4px; }
.perf-chart-hdr p { font-size: 12px; color: var(--t3); font-family: var(--mono); }
.chart-legend { display: flex; gap: 18px; align-items: center; }
.leg { font-family: var(--mono); font-size: 11px; }
.cyan-leg { color: var(--cyan); }
.muted-leg { color: var(--t4); }
.chart-disc { margin-top: 14px; font-size: 11px; color: var(--t4); font-family: var(--mono); line-height: 1.6; }

/* ═══════════════════════════════════════════════════════════════
   STAGE
   ═══════════════════════════════════════════════════════════════ */
#stage { padding: 100px 0; background: var(--bg0); }
.stage-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 28px; }

.stage-card {
  border: 1px solid var(--border);
  border-radius: var(--rl);
  padding: 28px;
}
.done-card { background: rgba(45,212,160,0.03); border-color: rgba(45,212,160,0.12); }
.prog-card { background: rgba(110,168,254,0.03); border-color: rgba(110,168,254,0.12); }
.plan-card { background: var(--bg4); }

.stage-icon { font-size: 20px; margin-bottom: 16px; }
.done-icon { color: var(--done); }
.prog-icon { color: var(--active); }
.plan-icon { color: var(--planned); }

.stage-card h3 { font-family: var(--head); font-size: 17px; font-weight: 700; color: var(--t0); margin-bottom: 14px; }
.stage-card ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.stage-card li { font-size: 13px; color: var(--t2); padding-left: 16px; position: relative; line-height: 1.5; }
.done-card li::before { content: '✓'; position: absolute; left: 0; color: var(--done); font-size: 11px; top: 1px; }
.prog-card li::before { content: '●'; position: absolute; left: 0; color: var(--active); font-size: 8px; top: 4px; }
.plan-card li::before { content: '○'; position: absolute; left: 0; color: var(--planned); font-size: 11px; top: 1px; }

.stage-note {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: rgba(110,168,254,0.05);
  border: 1px solid rgba(110,168,254,0.12);
  border-radius: var(--r);
  padding: 18px 22px;
}
.stage-note-icon { font-size: 16px; color: var(--blue); flex-shrink: 0; margin-top: 1px; }
.stage-note p { font-size: 13px; color: var(--t2); line-height: 1.7; }

/* ═══════════════════════════════════════════════════════════════
   RESEARCH LOG
   ═══════════════════════════════════════════════════════════════ */
#research { padding: 100px 0; background: var(--bg1); }

.exp-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--rl);
  margin-bottom: 18px;
}
.exp-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 12px;
}
.exp-table thead tr {
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
}
.exp-table th {
  padding: 12px 14px;
  text-align: left;
  color: var(--t3);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 10px;
  white-space: nowrap;
}
.exp-table td { padding: 14px 14px; border-bottom: 1px solid var(--border); color: var(--t1); white-space: nowrap; vertical-align: middle; }
.exp-table tbody tr:last-child td { border-bottom: none; }
.exp-table tbody tr { background: var(--bg2); transition: background var(--t); }
.exp-table tbody tr:hover { background: var(--bg3); }
.exp-table .run-id { color: var(--cyan); font-weight: 500; }
.exp-table .val-good { color: var(--green); }
.exp-table .val-ok { color: var(--amber); }
.status-done {
  display: inline-block;
  padding: 2px 8px;
  background: var(--green-d);
  color: var(--done);
  border-radius: 4px;
  font-size: 10px;
}

.exp-note {
  font-size: 12px;
  color: var(--t3);
  font-family: var(--mono);
  margin-bottom: 28px;
  line-height: 1.6;
}
.exp-note code { color: var(--cyan); background: var(--cyan-dd); padding: 1px 5px; border-radius: 3px; }

.progression {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 22px 24px;
}
.progression h3 { font-family: var(--head); font-size: 15px; font-weight: 600; color: var(--t0); margin-bottom: 14px; }
.prog-items { display: flex; flex-direction: column; gap: 12px; }
.prog-item { display: flex; align-items: flex-start; gap: 16px; flex-wrap: wrap; }
.prog-label { font-family: var(--mono); font-size: 12px; color: var(--t3); min-width: 160px; flex-shrink: 0; }
.prog-delta { font-family: var(--mono); font-size: 12px; }
.prog-delta.up { color: var(--green); }
.prog-plan { font-family: var(--mono); font-size: 12px; color: var(--blue); }

/* ═══════════════════════════════════════════════════════════════
   TECHNOLOGY
   ═══════════════════════════════════════════════════════════════ */
#technology { padding: 100px 0; background: var(--bg0); }
.tech-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.tech-card {
  display: flex;
  gap: 14px;
  align-items: center;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 18px 16px;
  transition: border-color var(--t), transform var(--t);
}
.tech-card:hover { border-color: var(--border-md); transform: translateY(-2px); }
.tech-badge {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.py   { background: rgba(55,118,171,0.18); color: #4da6d6; }
.jax  { background: rgba(97,206,110,0.15); color: #61ce6e; }
.pt   { background: rgba(238,76,44,0.15);  color: #ee4c2c; }
.gym  { background: var(--blue-d);          color: var(--blue); }
.kite { background: var(--cyan-d);          color: var(--cyan); }
.st   { background: rgba(255,75,75,0.12);   color: #ff6b6b; }
.cu   { background: rgba(118,185,0,0.15);   color: #76b900; }
.pq   { background: var(--amber-d);         color: var(--amber); }
.tech-card > div { display: flex; flex-direction: column; gap: 3px; }
.tech-card b { font-family: var(--head); font-size: 13px; font-weight: 700; color: var(--t0); }
.tech-card span { font-family: var(--mono); font-size: 10px; color: var(--t3); }

/* ═══════════════════════════════════════════════════════════════
   ABOUT
   ═══════════════════════════════════════════════════════════════ */
#about { padding: 100px 0; background: var(--bg1); }
.about-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: flex-start; }
.about-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--rl);
  padding: 32px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
}
.about-avatar { flex-shrink: 0; }
.about-avatar img { width: 72px; height: 72px; border-radius: 50%; object-fit: cover; border: 2px solid var(--border-md); }
.avatar-placeholder {
  width: 72px; height: 72px; border-radius: 50%;
  background: var(--bg3);
  border: 2px dashed var(--border-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; color: var(--t4);
}
.about-name { font-family: var(--head); font-size: 20px; font-weight: 700; color: var(--t0); margin-bottom: 4px; }
.about-role { font-family: var(--mono); font-size: 12px; color: var(--t3); margin-bottom: 14px; }
.about-desc { font-size: 13px; color: var(--t2); line-height: 1.75; margin-bottom: 20px; }
.about-links { display: flex; gap: 10px; flex-wrap: wrap; }
.about-link {
  padding: 6px 14px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--cyan);
  text-decoration: none;
  transition: border-color var(--t);
}
.about-link:hover { border-color: var(--border-md); }
.about-link-placeholder { font-family: var(--mono); font-size: 11px; color: var(--t4); font-style: italic; }

.about-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.fact-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 22px 20px;
}
.fact-num { font-family: var(--mono); font-size: 28px; font-weight: 500; color: var(--cyan); margin-bottom: 6px; letter-spacing: -0.5px; }
.fact-lbl { font-size: 12px; color: var(--t3); line-height: 1.5; }

/* ═══════════════════════════════════════════════════════════════
   USE CASES
   ═══════════════════════════════════════════════════════════════ */
#usecases { padding: 100px 0; background: var(--bg0); }
.uc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.uc-card {
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--rl);
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--t), transform var(--t);
}
.uc-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.uc-card:hover { border-color: var(--border-md); transform: translateY(-3px); }
.uc-card:hover::after { transform: scaleX(1); }
.uc-n { font-family: var(--mono); font-size: 11px; color: var(--t4); margin-bottom: 12px; }
.uc-card h3 { font-family: var(--head); font-size: 19px; font-weight: 700; color: var(--t0); margin-bottom: 10px; }
.uc-card p { font-size: 13px; color: var(--t2); line-height: 1.75; margin-bottom: 16px; }
.uc-ask { font-family: var(--mono); font-size: 12px; color: var(--cyan); border-top: 1px solid var(--border); padding-top: 14px; }

/* ═══════════════════════════════════════════════════════════════
   CONTACT
   ═══════════════════════════════════════════════════════════════ */
#contact { padding: 100px 0; background: var(--bg1); }
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: flex-start; }

.contact-left .sec-h2 { font-size: clamp(26px, 3.5vw, 42px); margin-bottom: 14px; }
.contact-left > p { font-size: 14px; color: var(--t2); line-height: 1.75; margin-bottom: 32px; }
.contact-items { display: flex; flex-direction: column; gap: 20px; }
.citem { display: flex; gap: 14px; align-items: flex-start; }
.citem-icon { font-size: 18px; flex-shrink: 0; margin-top: 1px; }
.citem-icon.cyan { color: var(--cyan); }
.citem-icon.blue { color: var(--blue); }
.citem-icon.green { color: var(--green); }
.citem b { display: block; font-family: var(--head); font-size: 14px; color: var(--t0); margin-bottom: 3px; }
.citem span { font-size: 13px; color: var(--t2); line-height: 1.6; }

.contact-right {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--rl);
  padding: 32px;
}
.cform { display: flex; flex-direction: column; gap: 18px; }
.cform-group { display: flex; flex-direction: column; gap: 6px; }
.cform-group label { font-family: var(--mono); font-size: 10px; color: var(--t3); text-transform: uppercase; letter-spacing: 1.5px; }
.cform-group input, .cform-group select, .cform-group textarea {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 14px;
  color: var(--t0);
  font-family: var(--sans);
  font-size: 14px;
  outline: none;
  transition: border-color var(--t);
  resize: vertical;
}
.cform-group input::placeholder, .cform-group textarea::placeholder { color: var(--t4); }
.cform-group input:focus, .cform-group select:focus, .cform-group textarea:focus { border-color: rgba(0,200,240,0.35); }
.cform-group select { appearance: none; cursor: pointer; }
.cform-group select option { background: var(--bg2); }
.cform-note { font-family: var(--mono); font-size: 10px; color: var(--t4); text-align: center; }

.cform-success { text-align: center; padding: 48px 24px; }
.success-check {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--green-d);
  border: 1px solid rgba(45,212,160,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; color: var(--green);
  margin: 0 auto 18px;
}
.cform-success h3 { font-family: var(--head); font-size: 20px; color: var(--t0); margin-bottom: 6px; }
.cform-success p { font-size: 14px; color: var(--t2); }

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
footer { background: var(--bg0); border-top: 1px solid var(--border); padding: 56px 0 28px; }
.footer-top { display: flex; justify-content: space-between; gap: 40px; margin-bottom: 40px; flex-wrap: wrap; }
.footer-brand p { font-size: 13px; color: var(--t3); margin-top: 12px; line-height: 1.6; max-width: 260px; }
.footer-nav { display: flex; gap: 56px; }
.fnav-col { display: flex; flex-direction: column; gap: 10px; }
.fnav-col b { font-family: var(--head); font-size: 12px; color: var(--t2); text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 4px; }
.fnav-col a { font-size: 13px; color: var(--t3); text-decoration: none; transition: color var(--t); }
.fnav-col a:hover { color: var(--cyan); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; }
.footer-bottom p { font-size: 12px; color: var(--t4); margin-bottom: 4px; }
.footer-disc { font-size: 11px; font-style: italic; }

/* ═══════════════════════════════════════════════════════════════
   CONTENT PAGES — Article / Research / Blog styles
   ═══════════════════════════════════════════════════════════════ */
.page-header {
  padding: 140px 0 60px;
  background: var(--bg1);
  border-bottom: 1px solid var(--border);
}
.page-header .container { max-width: 860px; }
.page-header .sec-label { margin-bottom: 12px; }
.page-header .sec-h2 { font-size: clamp(28px, 4vw, 42px); margin-bottom: 12px; }
.page-header p {
  font-size: 15px;
  color: var(--t2);
  line-height: 1.7;
  max-width: 640px;
}

.breadcrumbs {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 20px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--t3);
}
.breadcrumbs a { color: var(--t3); text-decoration: none; transition: color var(--t); }
.breadcrumbs a:hover { color: var(--cyan); }
.breadcrumbs span { color: var(--t4); }

.page-content {
  padding: 56px 0 100px;
}
.page-content .container { max-width: 860px; }

.article-prose {
  font-size: 15px;
  line-height: 1.85;
  color: var(--t1);
}
.article-prose h2 {
  font-family: var(--head);
  font-size: 24px;
  font-weight: 700;
  color: var(--t0);
  margin: 48px 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.article-prose h3 {
  font-family: var(--head);
  font-size: 18px;
  font-weight: 700;
  color: var(--t0);
  margin: 32px 0 12px;
}
.article-prose h4 {
  font-family: var(--head);
  font-size: 15px;
  font-weight: 700;
  color: var(--t0);
  margin: 24px 0 8px;
}
.article-prose p { margin-bottom: 16px; color: var(--t2); }
.article-prose p strong { color: var(--t1); }
.article-prose ul, .article-prose ol { margin-bottom: 16px; padding-left: 22px; }
.article-prose li { margin-bottom: 8px; color: var(--t2); }
.article-prose li::marker { color: var(--cyan); }
.article-prose blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: var(--bg2);
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--r) var(--r) 0;
  font-style: italic;
  color: var(--t2);
}
.article-prose blockquote p { margin-bottom: 0; }
.article-prose code {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--cyan);
  background: var(--cyan-dd);
  padding: 2px 6px;
  border-radius: 4px;
}
.article-prose pre {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 16px;
  overflow-x: auto;
  margin: 16px 0;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--t1);
}
.article-prose pre code { background: none; padding: 0; }
.article-prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 13px;
}
.article-prose th {
  text-align: left;
  padding: 10px 12px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--t3);
  font-weight: 500;
}
.article-prose td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--t2);
}
.article-prose tr:hover td { background: var(--bg4); }
.article-prose a { color: var(--cyan); text-decoration: none; }
.article-prose a:hover { text-decoration: underline; }
.article-prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}
.article-prose .lead {
  font-size: 17px;
  color: var(--t1);
  line-height: 1.7;
  margin-bottom: 24px;
}

/* Research nav sidebar */
.research-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  align-items: flex-start;
}
.research-sidebar {
  position: sticky;
  top: 100px;
}
.research-sidebar h4 {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--t3);
  margin-bottom: 14px;
}
.research-sidebar ul { list-style: none; display: flex; flex-direction: column; gap: 4px; }
.research-sidebar li a {
  display: block;
  padding: 7px 10px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--t2);
  text-decoration: none;
  transition: background var(--t), color var(--t);
  border-left: 2px solid transparent;
}
.research-sidebar li a:hover { color: var(--t0); background: var(--bg4); }
.research-sidebar li a.active { color: var(--cyan); background: var(--cyan-dd); border-left-color: var(--cyan); }

/* Cards for experiment / blog listings */
.card-list { display: flex; flex-direction: column; gap: 16px; }
.content-card {
  display: block;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--rl);
  padding: 28px;
  text-decoration: none;
  transition: border-color var(--t), transform var(--t);
}
.content-card:hover { border-color: var(--border-md); transform: translateY(-2px); }
.content-card .card-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--t3);
}
.content-card .card-meta .tag {
  padding: 2px 8px;
  background: var(--cyan-dd);
  color: var(--cyan);
  border-radius: 4px;
  font-size: 10px;
}
.content-card h3 {
  font-family: var(--head);
  font-size: 18px;
  font-weight: 700;
  color: var(--t0);
  margin-bottom: 8px;
}
.content-card p {
  font-size: 14px;
  color: var(--t2);
  line-height: 1.65;
}

/* Callout boxes */
.callout {
  padding: 18px 22px;
  border-radius: var(--r);
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.7;
}
.callout.info {
  background: rgba(110,168,254,0.06);
  border: 1px solid rgba(110,168,254,0.15);
  color: var(--t2);
}
.callout.warn {
  background: rgba(240,180,41,0.06);
  border: 1px solid rgba(240,180,41,0.15);
  color: var(--t2);
}
.callout strong { color: var(--t0); }

/* Experiment metric grid */
.exp-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 28px 0;
}
.exp-metric {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 18px;
  text-align: center;
}
.exp-metric .val {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 500;
  color: var(--cyan);
  margin-bottom: 4px;
  letter-spacing: -0.5px;
}
.exp-metric .lbl {
  font-size: 10px;
  color: var(--t3);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-family: var(--mono);
}

/* Back to top / CTA bar */
.cta-bar {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .prob-grid { grid-template-columns: repeat(2, 1fr); }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .metric-row { grid-template-columns: repeat(2, 1fr); }
  .tech-row { grid-template-columns: repeat(2, 1fr); }
  .about-wrap { grid-template-columns: 1fr; }
  .about-facts { grid-template-columns: repeat(4, 1fr); }
  .research-layout { grid-template-columns: 1fr; }
  .research-sidebar { position: static; }
  .exp-metrics { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-h1 { font-size: clamp(30px, 8vw, 46px); }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .psample-wrap { grid-template-columns: 1fr; }
  .stage-grid { grid-template-columns: 1fr; }
  .uc-grid { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; gap: 40px; }
  .footer-top { flex-direction: column; }
  .footer-nav { gap: 28px; }
  .about-card { flex-direction: column; }
  .about-facts { grid-template-columns: repeat(2, 1fr); }
  .pipe-step { grid-template-columns: 40px 1fr; gap: 16px; }
  .hstat { min-width: 80px; }
  .stock-grid { grid-template-columns: repeat(3, 1fr); }
  .exp-metrics { grid-template-columns: 1fr 1fr; }
  .page-header { padding: 120px 0 40px; }
}

@media (max-width: 480px) {
  .prob-grid { grid-template-columns: 1fr; }
  .feat-grid { grid-template-columns: 1fr; }
  .metric-row { grid-template-columns: 1fr; }
  .tech-row { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; }
  .hstat-sep { width: 100%; height: 1px; }
  .psample-stats { grid-template-columns: 1fr 1fr; }
  .stock-grid { grid-template-columns: repeat(2, 1fr); }
  .exp-metrics { grid-template-columns: 1fr; }
}