/* =====================================================================
   KAPEX — landing page styles
   Builds on the ENGRAM design system tokens, overrides legacy warm
   surface tokens with the KAPEX-locked cool palette
   (no warm earth tones; navy/teal/blue only).
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Brief-locked KAPEX palette (canonical hexes from design system prose) */
  --navy:            #1A2E44;
  --navy-ink-0:      #0D1B2A;  /* deep navy, body text on light */
  --navy-ink-1:      #142236;  /* dark panel background */
  --navy-ink-2:      #1A2E44;  /* primary navy */
  --navy-ink-3:      #26405C;  /* card hover on dark */
  --navy-ink-4:      #3A5775;  /* borders on dark */
  --navy-ink-5:      #6B849E;  /* muted text on navy */
  --navy-ink-6:      #A8B9CC;  /* secondary text on navy */

  --teal:            #50B8A8;
  --teal-300:        #7AD4C2;
  --teal-600:        #3FA695;
  --teal-100:        #E4F6F2;

  --blue:            #5186B0;

  --coral:           #E07A6B;

  /* Light surfaces (KAPEX override — cool, not warm) */
  --surface:         #FFFFFF;
  --surface-light:   #F7FAFC;
  --surface-panel:   #F5F8FB;
  --white:           #FFFFFF;

  /* Borders */
  --border-light:    #E5ECF2;

  /* Text on light */
  --text-primary:    #1E293B;
  --text-secondary:  #64748B;
  --text-tertiary:   #94A3B8;

  /* The gradient — teal → blue, never reversed */
  --grad: linear-gradient(90deg, #50B8A8 0%, #5186B0 100%);
  --grad-soft: linear-gradient(90deg, rgba(80,184,168,.18) 0%, rgba(81,134,176,.18) 100%);

  /* Shadows */
  --shadow-card: 0 1px 2px rgba(13,27,42,.04), 0 8px 24px rgba(13,27,42,.08);
  --glow-teal:   0 0 0 1px rgba(122,212,194,.35), 0 0 32px rgba(80,184,168,.25);

  /* Radii */
  --r-xs: 4px;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 20px;
  --r-xl: 28px;

  /* Spacing scale */
  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px;
  --sp-5: 20px; --sp-6: 24px; --sp-7: 32px; --sp-8: 48px;
  --sp-9: 64px; --sp-10: 96px; --sp-11: 128px;

  /* Type */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Easing */
  --ease-in:  cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-out: cubic-bezier(0.4, 0, 0.6, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

html, body {
  margin: 0;
  background: var(--white);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

::selection { background: rgba(80,184,168,.35); color: var(--navy-ink-0); }

/* ----- Layout ----- */
.wrap {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}
@media (min-width: 900px) {
  .wrap { padding: 0 64px; }
}
@media (min-width: 1400px) {
  .wrap { padding: 0 80px; }
}

.section { padding: 72px 0; }
@media (max-width: 760px) { .section { padding: 48px 0; } }

.section--dark {
  background: var(--navy);
  color: #fff;
}
.section--ink1 { background: var(--navy-ink-1); color: #fff; }
.section--gray { background: var(--surface-light); }

/* ----- Type ----- */
.eyebrow {
  font: 500 12px/1.4 var(--font-sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 var(--sp-4);
}
.section--dark .eyebrow { color: var(--teal-300); }

h1, h2, h3, h4 { margin: 0 0 0.4em; letter-spacing: -0.02em; }

.h-display {
  font-size: clamp(32px, 4.5vw, 56px);
  line-height: 1.08;
  font-weight: 700;
  letter-spacing: -0.025em;
}
.h-section {
  font-size: clamp(24px, 2.8vw, 36px);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.022em;
}
.h-sub {
  font-size: 19px;
  line-height: 1.3;
  font-weight: 600;
}

.lead {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-secondary);
}
.section--dark .lead { color: var(--navy-ink-6); }

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 18px;
  min-height: 40px;
  border-radius: var(--r-sm);
  font: 600 14px/1 var(--font-sans);
  letter-spacing: -0.005em;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background .18s var(--ease-in), border-color .18s var(--ease-in), color .18s var(--ease-in), transform .08s var(--ease-out);
  white-space: nowrap;
}
.btn:active { transform: scale(.98); }
.btn:focus-visible { outline: 2px solid var(--teal-300); outline-offset: 2px; }

.btn-primary {
  background: var(--grad);
  color: #fff;
}
.btn-primary:hover { background: var(--teal-600); }

.btn-ghost-dark {
  background: transparent;
  color: #fff;
  border: 1px solid var(--navy-ink-4);
}
.btn-ghost-dark:hover { border-color: var(--teal-300); }

.btn-ghost-light {
  background: transparent;
  color: var(--navy-ink-0);
  border: 1px solid var(--border-light);
}
.btn-ghost-light:hover { border-color: var(--teal); color: var(--teal-600); }

.btn-arrow { transform: translateY(0); transition: transform .18s var(--ease-in); }
.btn:hover .btn-arrow { transform: translateX(2px); }

/* ----- Pill / badge ----- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(122,212,194,.4);
  color: var(--teal-300);
  background: rgba(80,184,168,.06);
  font: 600 11px/1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.pill::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--teal-300);
  box-shadow: 0 0 8px var(--teal-300);
}
.pill--light {
  border-color: rgba(80,184,168,.4);
  color: var(--teal-600);
  background: var(--teal-100);
}
.pill--light::before { background: var(--teal); box-shadow: none; }

/* ----- Top nav ----- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 60px;
  background: rgba(26,46,68,.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(58,87,117,.4);
  z-index: 100;
  color: #fff;
}
.nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 700 18px/1 var(--font-sans);
  letter-spacing: 0.08em;
  flex: none;
}
.nav__brand-mark {
  width: 30px; height: 30px;
  border-radius: 7px;
  display: block;
}
.nav__brand-sub {
  font: 500 11px/1 var(--font-sans);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--navy-ink-6);
  margin-left: 6px;
}
.nav__beta {
  font: 600 9px/1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-300);
  background: rgba(80,184,168,.12);
  border: 1px solid rgba(122,212,194,.3);
  padding: 3px 7px;
  border-radius: 4px;
  margin-left: 2px;
}
.nav__links {
  display: none;
  flex: 1;
  justify-content: center;
  gap: 24px;
  font: 500 13px/1 var(--font-sans);
  color: var(--navy-ink-6);
}
.nav__links a { transition: color .18s var(--ease-in); white-space: nowrap; }
.nav__links a:hover { color: var(--teal-300); }
.nav__cta { display: inline-flex; gap: 10px; align-items: center; flex: none; }
@media (min-width: 960px) {
  .nav__links { display: flex; }
}

/* ===== HERO ===== */
.hero {
  position: relative;
  background: var(--navy);
  color: #fff;
  padding: 112px 0 72px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(800px 600px at 85% 20%, rgba(80,184,168,.18), transparent 60%),
    radial-gradient(700px 500px at 15% 90%, rgba(81,134,176,.16), transparent 60%);
  pointer-events: none;
}
.hero::after {
  /* subtle noise to kill banding */
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.018) 1px, transparent 0);
  background-size: 3px 3px;
  pointer-events: none;
}

.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 64px;
  align-items: center;
}
@media (min-width: 1024px) {
  .hero__grid { grid-template-columns: 1.05fr 1fr; gap: 80px; }
}

.hero h1 { color: #fff; }
.hero__sub {
  margin-top: 20px;
  max-width: 540px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--navy-ink-6);
}
.hero__ctas {
  display: flex; gap: 12px; flex-wrap: wrap;
  margin-top: 32px;
}
.hero__meta {
  margin-top: 28px;
  display: flex; align-items: center; gap: 20px;
  flex-wrap: wrap;
  font: 500 13px/1.4 var(--font-sans);
  color: var(--navy-ink-5);
}
.hero__meta-sep { color: var(--navy-ink-4); }

/* Code snippet under hero */
.codecard {
  margin-top: 64px;
  background: var(--navy-ink-1);
  border: 1px solid var(--navy-ink-4);
  border-radius: var(--r-md);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  max-width: 720px;
}
.codecard__bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--navy-ink-4);
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--navy-ink-6);
}
.codecard__dots { display: inline-flex; gap: 6px; }
.codecard__dots span { width: 10px; height: 10px; border-radius: 50%; background: var(--navy-ink-4); }
.codecard pre {
  margin: 0; padding: 20px 22px;
  color: #DCE6F0;
  overflow-x: auto;
}
.tok-kw   { color: #7AD4C2; }
.tok-str  { color: #B4D8F5; }
.tok-fn   { color: #E4F6F2; }
.tok-com  { color: var(--navy-ink-5); font-style: italic; }
.tok-num  { color: #F0C4A1; }

/* ===== Generic cards ===== */
.cardgrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.card-li {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--r-md);
  padding: 24px;
  transition: box-shadow .18s var(--ease-in), border-color .18s var(--ease-in), transform .18s var(--ease-in);
}
.card-li:hover {
  box-shadow: var(--shadow-card);
  border-color: rgba(80,184,168,.5);
}
.card-li h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--navy-ink-0);
}
.card-li p {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-secondary);
}

.card-feat {
  background: #fff;
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--teal);
  border-radius: var(--r-md);
  padding: 24px 22px;
  transition: box-shadow .18s var(--ease-in);
}
.card-feat:hover { box-shadow: var(--shadow-card); }
.card-feat .feat__num {
  font: 600 12px/1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-600);
  margin-bottom: 14px;
}
.card-feat h3 { font-size: 18px; font-weight: 600; margin-bottom: 10px; color: var(--navy-ink-0); }
.card-feat p { margin: 0; color: var(--text-secondary); font-size: 14px; line-height: 1.6; }

.icon-box {
  width: 38px; height: 38px;
  border-radius: var(--r-sm);
  background: var(--teal-100);
  color: var(--teal-600);
  display: grid; place-items: center;
  margin-bottom: 14px;
}
.section--dark .icon-box {
  background: rgba(80,184,168,.12);
  color: var(--teal-300);
}

/* ===== Section header ===== */
.section-head { max-width: 680px; margin-bottom: 40px; }
.section-head--center { margin: 0 auto 40px; text-align: center; }
.section-head h2 { color: inherit; }
.section--dark .section-head h2 { color: #fff; }

/* ===== HOW IT WORKS — flow ===== */
.flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  margin-bottom: 48px;
}
@media (max-width: 1100px) { .flow { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 700px) { .flow { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .flow { grid-template-columns: 1fr; } }
.flow__step {
  position: relative;
  background: var(--navy-ink-1);
  border: 1px solid var(--navy-ink-4);
  border-radius: var(--r-md);
  padding: 24px;
}
.flow__num {
  font: 600 11px/1 var(--font-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal-300);
  margin-bottom: 12px;
}
.flow__step h4 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
  color: #fff;
}
.flow__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--navy-ink-6);
}
.flow__arrow {
  position: absolute;
  right: -14px; top: 50%;
  transform: translateY(-50%);
  width: 22px; height: 22px;
  color: var(--navy-ink-4);
  display: none;
}
@media (min-width: 900px) {
  .flow__step:not(:last-child) .flow__arrow { display: block; }
}

/* ===== Salience graph block ===== */
.graphblock {
  background: var(--navy-ink-1);
  border: 1px solid var(--navy-ink-4);
  border-radius: var(--r-lg);
  padding: 32px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}
@media (min-width: 1000px) {
  .graphblock { grid-template-columns: 1.2fr 1fr; padding: 36px; }
}
.graphblock h3 { color: #fff; font-size: 20px; }
.graphblock p { color: var(--navy-ink-6); font-size: 14px; line-height: 1.6; margin-bottom: 10px; }

.legend { display: flex; flex-direction: column; gap: 14px; margin-top: 22px; }
.legend__row { display: flex; align-items: center; gap: 12px; font-size: 13px; }
.legend__swatch { width: 28px; height: 3px; border-radius: 2px; }

/* ===== Use cases — explicit 3x2 grid ===== */
.usegrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 980px) { .usegrid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .usegrid { grid-template-columns: 1fr; } }
.usecard {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--r-md);
  padding: 28px;
  transition: border-color .18s var(--ease-in), box-shadow .18s var(--ease-in), transform .18s var(--ease-in);
}
.usecard:hover {
  border-color: rgba(80,184,168,.45);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}
.usecard h4 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--navy-ink-0);
}
.usecard p {
  font-size: 14px;
  line-height: 1.55;
  margin: 0;
  color: var(--text-secondary);
}

/* ===== Compare table ===== */
.compare {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.compare__head, .compare__row {
  display: grid;
  grid-template-columns: 2.2fr repeat(4, 1fr);
  align-items: center;
}
.compare__head {
  background: var(--navy);
  color: #fff;
  font: 600 12px/1.2 var(--font-sans);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.compare__head > div {
  padding: 18px 14px;
  border-right: 1px solid rgba(255,255,255,.08);
  font-size: 12px;
}
.compare__head > div:last-child { border-right: none; }
.compare__head .col-kapex {
  background: var(--grad);
  color: #fff;
  position: relative;
}
.compare__row {
  border-top: 1px solid var(--border-light);
  font-size: 14px;
}
.compare__row > div {
  padding: 18px 14px;
  text-align: center;
  border-right: 1px solid var(--border-light);
  color: var(--text-secondary);
  min-height: 60px;
  display: flex; align-items: center; justify-content: center;
}
.compare__row > div:first-child {
  justify-content: flex-start;
  text-align: left;
  color: var(--navy-ink-0);
  font-weight: 500;
}
.compare__row > div:last-child { border-right: none; }
.compare__row .col-kapex {
  background: rgba(80,184,168,.06);
  color: var(--teal-600);
  font-weight: 600;
}
.compare__check {
  display: inline-grid; place-items: center;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: rgba(80,184,168,.14);
  color: var(--teal-600);
}
.compare__check--kapex {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 0 0 4px rgba(80,184,168,.12);
}
.compare__dash { color: var(--text-tertiary); }
.compare__meta {
  display: inline;
  color: var(--text-tertiary);
  font-weight: 400;
  font-size: 13px;
}
.compare__meta-pill {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(80,184,168,.12);
  color: var(--teal-600);
  font: 600 11px/1 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.col-kapex .compare__meta-pill {
  background: var(--grad);
  color: #fff;
}
.compare__note {
  text-align: center;
  margin-top: 28px;
  color: var(--text-secondary);
  font-size: 15px;
}
.compare__note strong { color: var(--navy-ink-0); }

@media (max-width: 900px) {
  .compare { overflow-x: auto; }
  .compare__head, .compare__row {
    grid-template-columns: 240px repeat(4, 120px);
    min-width: 720px;
  }
}

/* ===== Sandstone product-by lockup (footer) ===== */
.product-by {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  border: 1px solid var(--navy-ink-4);
  border-radius: var(--r-md);
  background: rgba(255,255,255,.02);
  transition: border-color .18s var(--ease-in), background .18s var(--ease-in);
}
.product-by:hover { border-color: var(--teal-300); background: rgba(80,184,168,.06); }
.product-by img { width: 36px; height: auto; flex: none; }
.product-by__txt { display: flex; flex-direction: column; gap: 4px; line-height: 1.1; }
.product-by__eyebrow {
  font: 500 10px/1 var(--font-sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--navy-ink-5);
}
.product-by__name {
  font: 600 14px/1 var(--font-sans);
  letter-spacing: 0.04em;
  color: #fff;
}
/* Centered "product by" row at the bottom of footer */
.product-by-row {
  display: flex;
  justify-content: center;
  padding: 32px 0 28px;
}

/* ===== Verticals demo (Use Cases page) ===== */
.vert-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}
@media (min-width: 980px) {
  .vert-grid { grid-template-columns: minmax(280px, 0.85fr) minmax(0, 1.15fr); gap: 48px; }
}
.vert-desc { font-family: var(--font-sans); }
.vert-widget { min-width: 0; }
.pricing {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.tier {
  position: relative;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--r-md);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
}
.tier--featured {
  border-color: var(--teal);
  box-shadow: 0 0 0 1px var(--teal), 0 10px 32px rgba(80,184,168,.18);
  transform: translateY(-4px);
}
.tier__badge {
  position: absolute;
  top: -12px; left: 28px;
  padding: 6px 12px;
  background: var(--grad);
  color: #fff;
  font: 600 10px/1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 999px;
}
.tier__name {
  font: 500 12px/1 var(--font-sans);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal-600);
  margin-bottom: 10px;
}
.tier__price {
  font-size: 32px;
  line-height: 1.1;
  font-weight: 700;
  color: var(--navy-ink-0);
  letter-spacing: -0.025em;
}
.tier__price small {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0;
  margin-left: 4px;
}
.tier__sub {
  margin-top: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  min-height: 38px;
}
.tier__list {
  list-style: none;
  padding: 0;
  margin: 24px 0 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.tier__list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-primary);
}
.tier__list li svg { flex: none; color: var(--teal-600); margin-top: 3px; }
.tier .btn { width: 100%; justify-content: center; }
.pricing__note {
  margin-top: 36px;
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
}
@media (max-width: 760px) { .pricing { grid-template-columns: 1fr; } }
@media (max-width: 760px) { .tier--featured { transform: none; } }

/* ===== Proof / stats ===== */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
}
.stat {
  border-left: 1px solid var(--navy-ink-4);
  padding: 8px 0 8px 24px;
}
.stat__num {
  font: 700 36px/1.05 var(--font-sans);
  letter-spacing: -0.03em;
  color: #fff;
}
.stat__num .grad-text { background-clip: text; -webkit-background-clip: text; }
.stat__lbl {
  margin-top: 8px;
  font-size: 13px;
  color: var(--navy-ink-6);
  line-height: 1.4;
}
.stats__foot {
  margin-top: 28px;
  font-size: 12px;
  color: var(--navy-ink-5);
  font-style: italic;
}

/* ===== Integration ===== */
.intgrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}
.intcard {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--r-md);
  padding: 28px;
  transition: border-color .18s var(--ease-in), box-shadow .18s var(--ease-in);
  display: flex; flex-direction: column;
}
.intcard:hover { border-color: rgba(80,184,168,.4); box-shadow: var(--shadow-card); }
.intcard__hdr {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 14px;
}
.intcard__badge {
  font: 600 10px/1 var(--font-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal-600);
  padding: 5px 10px;
  background: var(--teal-100);
  border-radius: var(--r-xs);
}
.intcard h3 { font-size: 17px; font-weight: 600; margin: 0 0 8px; color: var(--navy-ink-0); }
.intcard p { margin: 0 0 14px; color: var(--text-secondary); font-size: 13px; line-height: 1.55; }
.intcard__pre {
  background: var(--navy-ink-0);
  color: #DCE6F0;
  border-radius: var(--r-sm);
  padding: 14px 16px;
  font: 500 12px/1.6 var(--font-mono);
  overflow-x: auto;
  margin: 0;
  white-space: pre;
}
.intcard__pre .tok-kw  { color: #7AD4C2; }
.intcard__pre .tok-str { color: #B4D8F5; }
.intcard__pre .tok-fn  { color: #E4F6F2; }
.intcard__pre .tok-com { color: #6B849E; font-style: italic; }
.intcard__pre .tok-key { color: #A8B9CC; }
.intcard__foot {
  margin-top: 14px;
  font-size: 12px;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ===== Bottom CTA ===== */
.cta-final {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.cta-final .h-section { color: #fff; margin-bottom: 12px; }
.cta-final .lead { margin-bottom: 28px; color: var(--navy-ink-6); }
.cta-final__buttons { display: inline-flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.cta-final__contact {
  margin-top: 40px;
  font-size: 13px;
  color: var(--navy-ink-5);
  letter-spacing: 0.04em;
}
.cta-final__contact a { color: var(--teal-300); }

/* ===== Footer ===== */
footer {
  background: var(--navy-ink-1);
  color: var(--navy-ink-6);
  padding: 56px 0 28px;
  font-size: 13px;
}
.foot__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: 28px;
  margin-bottom: 40px;
}
@media (max-width: 900px) {
  .foot__grid { grid-template-columns: repeat(2, 1fr); }
}
.foot__brand p {
  font-size: 14px;
  color: var(--navy-ink-6);
  max-width: 280px;
  margin: 14px 0 0;
  line-height: 1.55;
}
.foot__col h5 {
  font: 600 11px/1 var(--font-sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #fff;
  margin: 0 0 18px;
}
.foot__col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.foot__col a { color: var(--navy-ink-6); transition: color .18s var(--ease-in); }
.foot__col a:hover { color: var(--teal-300); }
.foot__bottom {
  border-top: 1px solid var(--navy-ink-4);
  padding-top: 24px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  font-size: 12px;
  color: var(--navy-ink-5);
}
.foot__bottom .foot__rule { height: 1px; background: var(--grad); }

/* ===== HERO diagram ===== */
.hero-diagram {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1.05;
  max-width: 540px;
  margin: 0 auto;
}
.hero-diagram__inner {
  position: absolute;
  inset: 0;
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(80,184,168,.06), rgba(81,134,176,.04));
  border: 1px solid var(--navy-ink-4);
  overflow: hidden;
}
.hero-diagram svg { width: 100%; height: 100%; }

/* dot grid backdrop inside diagram */
.hero-diagram__inner::before {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(168,185,204,.10) 1px, transparent 0);
  background-size: 24px 24px;
}

/* Animated stroke flowing on the connection lines */
@keyframes flow-down {
  0% { stroke-dashoffset: 40; }
  100% { stroke-dashoffset: 0; }
}
.flow-line {
  stroke-dasharray: 12 8;
  animation: flow-down 4s linear infinite;
}

@keyframes pulse-node {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.12); opacity: .85; }
}
.node-pulse { transform-origin: center; animation: pulse-node 2.6s var(--ease-in) infinite; }
.node-pulse--delay { animation-delay: .9s; }
.node-pulse--delay2 { animation-delay: 1.6s; }

@keyframes fade-decay {
  0%, 100% { opacity: .25; }
  50% { opacity: .55; }
}
.decay-node { animation: fade-decay 4s var(--ease-in) infinite; }

@keyframes draw-curve {
  to { stroke-dashoffset: 0; }
}
.curve-draw {
  stroke-dasharray: 1200;
  stroke-dashoffset: 1200;
  animation: draw-curve 2.4s var(--ease-in) forwards;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .flow-line, .node-pulse, .decay-node, .curve-draw {
    animation: none !important;
    stroke-dashoffset: 0 !important;
    opacity: 1;
  }
}

/* ===== Mobile hamburger menu ===== */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--r-xs);
  transition: background .18s var(--ease-in);
}
.nav__toggle:hover { background: rgba(255,255,255,.08); }
.nav__toggle.open svg line:nth-child(1) { transform: rotate(45deg) translate(4px, -2px); }
.nav__toggle.open svg line:nth-child(2) { opacity: 0; }
.nav__toggle.open svg line:nth-child(3) { transform: rotate(-45deg) translate(4px, 2px); }
.nav__toggle svg line { transition: transform .2s var(--ease-in), opacity .2s var(--ease-in); transform-origin: center; }

.nav__mobile {
  display: none;
  position: fixed;
  top: 60px;
  left: 0; right: 0;
  background: rgba(20,34,54,.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--navy-ink-4);
  padding: 12px 0 16px;
  z-index: 99;
  flex-direction: column;
}
.nav__mobile.open { display: flex; }
.nav__mobile a {
  display: block;
  padding: 13px 32px;
  color: var(--navy-ink-6);
  font: 500 15px/1 var(--font-sans);
  transition: color .18s var(--ease-in), background .18s var(--ease-in);
}
.nav__mobile a:hover { color: var(--teal-300); background: rgba(80,184,168,.06); }
.nav__mobile a.active { color: var(--teal-300); }
.nav__mobile__divider {
  height: 1px;
  background: var(--navy-ink-4);
  margin: 8px 32px;
}

@media (max-width: 959px) {
  .nav__toggle { display: flex; align-items: center; }
  .nav__cta .btn-primary { display: none; }
}
@media (max-width: 760px) {
  .nav__mobile { top: 52px; }
}
@media (max-width: 560px) {
  .nav__brand-sub { display: none; }
}

/* ===== Data section grids ===== */
.data-stat-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--navy-ink-4);
  border-radius: var(--r-md);
  overflow: hidden;
}
.data-stat-bar__item {
  background: var(--navy-ink-1);
  padding: 24px 16px;
  text-align: center;
}
.data-stat-bar__num {
  font: 700 28px/1 var(--font-sans);
  color: var(--teal-300);
}
.data-stat-bar__lbl {
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.1em;
  color: var(--navy-ink-6);
  margin-top: 8px;
  text-transform: uppercase;
}

.data-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.data-panel {
  background: var(--navy-ink-1);
  border: 1px solid var(--navy-ink-4);
  border-radius: var(--r-md);
  padding: 28px;
}

.data-trust-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
}
.data-trust-bar span {
  font: 500 12px/1 var(--font-mono);
  color: var(--navy-ink-5);
  letter-spacing: 0.06em;
}
.data-trust-bar .sep { color: var(--navy-ink-4); }

/* Deploy flow */
.deploy-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* ===== Responsive tweaks ===== */
@media (max-width: 760px) {
  .hero { padding: 88px 0 48px; }
  .hero__grid { gap: 32px; }
  .hero-diagram { max-width: 380px; }
  .codecard { font-size: 12px; }
  .section-head { margin-bottom: 28px; }
  .stat { padding: 6px 0 6px 14px; }
  .stat__num { font-size: 28px; }
  .card-li { padding: 20px; }
  .card-feat { padding: 20px 18px; }
  .tier { padding: 20px 18px; }
  .tier__price { font-size: 28px; }
  .graphblock { padding: 24px; }
  .intcard { padding: 22px; }
  .flow__step { padding: 20px; }
  footer { padding: 40px 0 24px; }
  .foot__grid { gap: 20px; margin-bottom: 28px; }
  .nav { height: 52px; }
  .nav__brand { font-size: 16px; }
  .nav__brand-mark { width: 26px; height: 26px; }
  .btn { padding: 9px 16px; min-height: 36px; font-size: 13px; }
  .data-stat-bar { grid-template-columns: repeat(2, 1fr); }
  .data-stat-bar__num { font-size: 22px; }
  .data-stat-bar__item { padding: 18px 12px; }
  .data-two-col { grid-template-columns: 1fr; gap: 20px; }
  .data-panel { padding: 22px; }
  .data-trust-bar { gap: 12px 16px; }
  .data-trust-bar span { font-size: 11px; }
  .deploy-flow { grid-template-columns: 1fr; }
  .hero__meta { font-size: 12px; gap: 10px; }
  .concept-box { padding: 24px !important; }
  .concept-box ol { font-size: 14px !important; }
  .product-by img { width: 28px; }
  .product-by { padding: 10px 14px; gap: 10px; }
}

@media (max-width: 480px) {
  .hero { padding: 76px 0 40px; }
  .hero-diagram { max-width: 300px; }
  .h-display { font-size: 28px; }
  .h-section { font-size: 22px; }
  .wrap { padding: 0 16px; }
  .compare__head, .compare__row { grid-template-columns: 160px repeat(4, 100px); min-width: 560px; }
  .data-stat-bar__num { font-size: 20px; }
  .data-stat-bar__lbl { font-size: 10px; }
  .foot__grid { grid-template-columns: 1fr; }
  .hero__ctas { flex-direction: column; }
  .hero__ctas .btn { width: 100%; justify-content: center; }
  .cta-final__buttons { flex-direction: column; width: 100%; }
  .cta-final__buttons .btn { width: 100%; justify-content: center; }
  .data-trust-bar { gap: 8px 12px; }
  .data-trust-bar span { font-size: 10px; }
  .nav__mobile a { padding: 13px 16px; }
}