@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=IBM+Plex+Mono:wght@400;500&family=Lora:ital,wght@0,400;0,500;1,400&display=swap');

:root {
  --navy:    #0a0e18;
  --slate:   #111827;
  --panel:   #161d2e;
  --border:  rgba(255,255,255,0.07);
  --white:   #f4f1e8;
  --dim:     rgba(244,241,232,0.55);
  --faint:   rgba(244,241,232,0.2);
  --heat:    #e06030;
  --amber:   #c97c2e;
  --cool:    #4a9eb5;
  --teal:    #1d9e75;
  --pdrc:    #b8d4e0;
  --mono:    'IBM Plex Mono', monospace;
  --display: 'Bebas Neue', sans-serif;
  --body:    'Lora', serif;
  --nav-w:   220px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--navy);
  color: var(--white);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
}

/* ── NOISE GRAIN OVERLAY ─────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.035;
  pointer-events: none;
  z-index: 9999;
}

/* ── NAV ─────────────────────────────────────── */
nav {
  width: var(--nav-w);
  min-height: 100vh;
  background: var(--slate);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 32px 0;
  position: fixed;
  top: 0; left: 0;
  z-index: 100;
  overflow-y: auto;
}

.nav-logo {
  padding: 0 24px 32px;
  border-bottom: 1px solid var(--border);
}

.nav-logo .wordmark {
  font-family: var(--display);
  font-size: 22px;
  letter-spacing: .04em;
  color: var(--white);
  line-height: 1;
  display: block;
}

.nav-logo .tagline {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--cool);
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-top: 6px;
  display: block;
}

.nav-logo .domain {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--faint);
  letter-spacing: .08em;
  margin-top: 4px;
  display: block;
}

.nav-links {
  padding: 24px 0;
  flex: 1;
}

.nav-section {
  padding: 8px 24px 4px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--faint);
}

.nav-links a {
  display: block;
  padding: 9px 24px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--dim);
  text-decoration: none;
  transition: all 0.18s ease;
  border-left: 2px solid transparent;
}

.nav-links a:hover {
  color: var(--white);
  background: rgba(255,255,255,0.04);
  border-left-color: var(--cool);
}

.nav-links a.active {
  color: var(--cool);
  border-left-color: var(--cool);
  background: rgba(74,158,181,0.08);
}

.nav-footer {
  padding: 24px;
  border-top: 1px solid var(--border);
}

.nav-footer .temp-badge {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--heat);
  letter-spacing: .08em;
}

/* ── MAIN CONTENT ────────────────────────────── */
main {
  margin-left: var(--nav-w);
  flex: 1;
  min-height: 100vh;
}

/* ── HERO ────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 80px 64px;
  position: relative;
  overflow: hidden;
  background: var(--navy);
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-bg canvas {
  width: 100%;
  height: 100%;
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cool);
  margin-bottom: 20px;
  position: relative;
  z-index: 2;
}

.hero-eyebrow::before {
  content: '// ';
  color: var(--faint);
}

.hero h1 {
  font-family: var(--display);
  font-size: clamp(64px, 9vw, 140px);
  line-height: .92;
  letter-spacing: .02em;
  color: var(--white);
  position: relative;
  z-index: 2;
  max-width: 900px;
}

.hero h1 .heat-word { color: var(--heat); }
.hero h1 .cool-word { color: var(--cool); }

.hero-sub {
  margin-top: 32px;
  font-size: 17px;
  line-height: 1.7;
  color: var(--dim);
  max-width: 560px;
  position: relative;
  z-index: 2;
}

.hero-metrics {
  display: flex;
  gap: 48px;
  margin-top: 52px;
  position: relative;
  z-index: 2;
  flex-wrap: wrap;
}

.metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-n {
  font-family: var(--display);
  font-size: 42px;
  line-height: 1;
  letter-spacing: .04em;
}

.metric-l {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--dim);
}

/* ── SECTION ─────────────────────────────────── */
section {
  padding: 96px 64px;
  border-top: 1px solid var(--border);
}

section:first-of-type { border-top: none; }

.section-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cool);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-label::after {
  content: '';
  flex: 1;
  max-width: 48px;
  height: 1px;
  background: var(--cool);
  opacity: .4;
}

h2 {
  font-family: var(--display);
  font-size: clamp(36px, 5vw, 72px);
  letter-spacing: .03em;
  line-height: .95;
  color: var(--white);
  margin-bottom: 24px;
}

h3 {
  font-family: var(--display);
  font-size: clamp(24px, 3vw, 40px);
  letter-spacing: .04em;
  line-height: 1;
  color: var(--white);
  margin-bottom: 14px;
}

p { color: var(--dim); margin-bottom: 16px; }
p:last-child { margin-bottom: 0; }

/* ── CARDS ───────────────────────────────────── */
.card-grid {
  display: grid;
  gap: 2px;
  margin-top: 48px;
}

.card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--panel);
  padding: 32px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.card:hover { border-color: rgba(74,158,181,0.3); }

.card-accent {
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 100%;
}

.card-accent.heat  { background: var(--heat); }
.card-accent.cool  { background: var(--cool); }
.card-accent.teal  { background: var(--teal); }
.card-accent.amber { background: var(--amber); }
.card-accent.pdrc  { background: var(--pdrc); }

.card-tag {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .18em;
  text-transform: uppercase;
  padding: 3px 10px;
  border: 1px solid;
  border-radius: 2px;
  display: inline-block;
  margin-bottom: 20px;
}

.tag-dev   { color: var(--amber); border-color: rgba(201,124,46,0.35); background: rgba(201,124,46,0.06); }
.tag-cool  { color: var(--cool);  border-color: rgba(74,158,181,0.35); background: rgba(74,158,181,0.06); }
.tag-teal  { color: var(--teal);  border-color: rgba(29,158,117,0.35); background: rgba(29,158,117,0.06); }
.tag-heat  { color: var(--heat);  border-color: rgba(224,96,48,0.35);  background: rgba(224,96,48,0.06); }
.tag-pdrc  { color: var(--pdrc);  border-color: rgba(184,212,224,0.35); background: rgba(184,212,224,0.06); }

.spec-list {
  margin-top: 20px;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.spec-list li {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.spec-list li::before {
  content: '→';
  color: var(--cool);
  flex-shrink: 0;
}

/* ── PRODUCT CARDS ───────────────────────────── */
.product-card {
  background: var(--panel);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.product-card:hover {
  transform: translateY(-2px);
  border-color: rgba(74,158,181,0.3);
}

.product-visual {
  height: 200px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-body { padding: 28px; }

.product-name {
  font-family: var(--display);
  font-size: 28px;
  letter-spacing: .05em;
  color: var(--white);
  margin-bottom: 8px;
}

.product-model {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  color: var(--faint);
  text-transform: uppercase;
  margin-bottom: 16px;
}

/* ── TIER TABLE ──────────────────────────────── */
.tier-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 40px;
  font-family: var(--mono);
  font-size: 12px;
}

.tier-table th {
  text-align: left;
  padding: 12px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--cool);
  letter-spacing: .1em;
  text-transform: uppercase;
  font-weight: 500;
}

.tier-table td {
  padding: 14px 16px;
  border: 1px solid var(--border);
  color: var(--dim);
  vertical-align: top;
  line-height: 1.5;
}

.tier-table tr:hover td { background: rgba(255,255,255,0.02); }

.tier-name {
  font-family: var(--display);
  font-size: 18px;
  letter-spacing: .06em;
  color: var(--white);
}

/* ── DATA BARS ───────────────────────────────── */
.data-bar-wrap { margin-top: 40px; }

.data-bar-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.data-bar-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--dim);
  min-width: 200px;
  text-align: right;
}

.data-bar-track {
  flex: 1;
  height: 6px;
  background: rgba(255,255,255,0.07);
  border-radius: 3px;
  overflow: hidden;
}

.data-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 1s cubic-bezier(.22,1,.36,1);
}

.data-bar-val {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cool);
  min-width: 60px;
}

/* ── PROBLEM CARDS ───────────────────────────── */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  margin-top: 48px;
}

.problem-card {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 40px;
  position: relative;
  overflow: hidden;
}

.problem-icon {
  font-family: var(--display);
  font-size: 64px;
  line-height: 1;
  opacity: .12;
  position: absolute;
  bottom: 20px;
  right: 24px;
  letter-spacing: .04em;
}

/* ── CTA STRIP ───────────────────────────────── */
.cta-strip {
  padding: 64px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.cta-strip h3 { font-size: 32px; margin-bottom: 8px; }

.btn {
  display: inline-block;
  padding: 14px 32px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid;
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn-cool {
  color: var(--cool);
  border-color: var(--cool);
  background: rgba(74,158,181,0.06);
}

.btn-cool:hover {
  background: rgba(74,158,181,0.18);
  color: var(--white);
}

.btn-heat {
  color: var(--heat);
  border-color: var(--heat);
  background: rgba(224,96,48,0.06);
}

.btn-heat:hover {
  background: rgba(224,96,48,0.18);
  color: var(--white);
}

/* ── PAGE HEADER ─────────────────────────────── */
.page-header {
  padding: 80px 64px 64px;
  border-bottom: 1px solid var(--border);
  background: var(--slate);
}

.page-header .eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cool);
  margin-bottom: 16px;
}

.page-header h1 {
  font-family: var(--display);
  font-size: clamp(48px, 7vw, 96px);
  letter-spacing: .03em;
  line-height: .92;
  color: var(--white);
  max-width: 800px;
}

.page-header .lede {
  margin-top: 24px;
  max-width: 600px;
  color: var(--dim);
  font-size: 17px;
}

/* ── DIVIDER ─────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* ── STACK DIAGRAM ───────────────────────────── */
.stack-layers {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stack-layer {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--border);
  overflow: hidden;
}

.stack-layer-depth {
  width: 8px;
  flex-shrink: 0;
}

.stack-layer-body {
  padding: 20px 28px;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--panel);
}

.stack-layer-name {
  font-family: var(--display);
  font-size: 22px;
  letter-spacing: .06em;
  color: var(--white);
  min-width: 220px;
}

.stack-layer-spec {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
  flex: 1;
  line-height: 1.6;
}

.stack-layer-temp {
  font-family: var(--display);
  font-size: 28px;
  letter-spacing: .04em;
  min-width: 80px;
  text-align: right;
}

/* ── CONTACT ─────────────────────────────────── */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  margin-top: 48px;
}

.contact-info .line {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--dim);
  margin-bottom: 12px;
  display: flex;
  gap: 12px;
}

.contact-info .line span:first-child {
  color: var(--faint);
  min-width: 80px;
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding-top: 2px;
}

.contact-info a { color: var(--cool); text-decoration: none; }
.contact-info a:hover { text-decoration: underline; }

form { display: flex; flex-direction: column; gap: 20px; }

.form-group { display: flex; flex-direction: column; gap: 8px; }

.form-group label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--faint);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 12px 16px;
  color: var(--white);
  font-family: var(--body);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--cool);
}

.form-group textarea { resize: vertical; min-height: 120px; }

/* ── MOBILE NAV TOGGLE ───────────────────────── */
.nav-toggle {
  display: none;
  position: fixed;
  top: 16px; left: 16px;
  z-index: 200;
  background: var(--slate);
  border: 1px solid var(--border);
  color: var(--white);
  width: 40px; height: 40px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 18px;
  align-items: center;
  justify-content: center;
}

/* ── RESPONSIVE ──────────────────────────────── */
@media (max-width: 900px) {
  nav {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }
  nav.open { transform: translateX(0); }
  main { margin-left: 0; }
  .nav-toggle { display: flex; }
  .hero { padding: 80px 24px 48px; }
  section { padding: 64px 24px; }
  .page-header { padding: 80px 24px 48px; }
  .card-grid.cols-2,
  .card-grid.cols-3 { grid-template-columns: 1fr; }
  .problem-grid { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .cta-strip { padding: 40px 24px; }
  h2 { font-size: 36px; }
}