:root {
  --kp-navy: #0d2744;
  --kp-navy-2: #16385c;
  --kp-teal: #0e7c7b;
  --kp-teal-2: #129390;
  --kp-ink: #14202b;
  --kp-muted: #516070;
  --kp-faint: #7a8896;
  --kp-line: #d7e0e6;
  --kp-paper: #f4f7f8;
  --kp-card: #ffffff;
  --kp-soft: #e7f3f2;
  --kp-warn: #8a5a12;
  --kp-danger: #8b2e2e;
  --kp-ok: #14664d;
  --kp-focus: #c2410c;
  --kp-shadow: 0 10px 30px rgba(13, 39, 68, .08);
  --kp-font: Inter, "Segoe UI", system-ui, sans-serif;
  --kp-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --nav-offset: 92px;
}

[data-theme="dark"] {
  --kp-navy: #8fd4d2;
  --kp-navy-2: #b7e3e1;
  --kp-teal: #4ec7c4;
  --kp-teal-2: #7ad8d5;
  --kp-ink: #e8eef4;
  --kp-muted: #b4c0cc;
  --kp-faint: #8b97a8;
  --kp-line: #2b3a4b;
  --kp-paper: #0c1219;
  --kp-card: #141c26;
  --kp-soft: #16262a;
  --kp-warn: #f0b429;
  --kp-danger: #f2b8b5;
  --kp-ok: #7dd3a8;
  --kp-shadow: 0 10px 30px rgba(0, 0, 0, .35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-offset); }
body.kp-page {
  margin: 0;
  background: var(--kp-paper);
  color: var(--kp-ink);
  font-family: var(--kp-font);
  line-height: 1.6;
}
.kp-skip {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 200;
  padding: 8px 12px;
  background: var(--kp-teal);
  color: #fff;
  border-radius: 6px;
}
.kp-skip:focus { top: 12px; }
.kp-wrap { width: min(1140px, calc(100% - 32px)); margin: 0 auto; }
.kp-section { padding: 64px 0; }
.kp-section--alt { background: var(--kp-card); border-block: 1px solid var(--kp-line); }
.kp-section--deep {
  background: linear-gradient(180deg, #0d2744 0%, #102f50 100%);
  color: #eef6f6;
}
[data-theme="dark"] .kp-section--deep { background: linear-gradient(180deg, #0a1017 0%, #121c28 100%); }
.kp-kicker {
  margin: 0 0 8px;
  color: var(--kp-teal);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.kp-section--deep .kp-kicker { color: #8fd4d2; }
.kp-section h2 {
  margin: 0 0 12px;
  font-size: clamp(26px, 3.2vw, 38px);
  letter-spacing: -.03em;
  line-height: 1.15;
}
.kp-section h3 { margin: 28px 0 10px; font-size: 20px; letter-spacing: -.02em; }
.kp-section h4 { margin: 18px 0 8px; font-size: 15px; }
.kp-lead { max-width: 760px; color: var(--kp-muted); font-size: 17px; }
.kp-note {
  margin-top: 16px;
  padding: 12px 14px;
  border-left: 3px solid var(--kp-warn);
  background: var(--kp-soft);
  color: var(--kp-muted);
  font-size: 14px;
}
.kp-grid { display: grid; gap: 16px; }
.kp-grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.kp-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.kp-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.kp-card {
  padding: 20px;
  border: 1px solid var(--kp-line);
  border-radius: 12px;
  background: var(--kp-card);
  box-shadow: var(--kp-shadow);
}
.kp-card p, .kp-card li { color: var(--kp-muted); font-size: 14px; }
.kp-card strong { color: var(--kp-ink); }
.kp-list { margin: 0; padding-left: 18px; }
.kp-list li + li { margin-top: 6px; }
.kp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 8px;
  border: 1px solid transparent;
  font: 600 14px/1.2 var(--kp-font);
  text-decoration: none;
  cursor: pointer;
}
.kp-btn-primary { background: var(--kp-teal); color: #fff; }
.kp-btn-primary:hover { background: #0a6665; }
.kp-btn-ghost { border-color: var(--kp-line); color: var(--kp-ink); background: var(--kp-card); }
.kp-btn-ghost:hover { border-color: var(--kp-teal); color: var(--kp-teal); }
.kp-btn-on-dark { border-color: rgba(255,255,255,.28); color: #fff; background: transparent; }
.kp-btn-on-dark:hover { background: rgba(255,255,255,.08); }
.kp-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.kp-card .kp-actions { margin-top: 12px; }
.kp-btn-sm { min-height: 40px; padding: 0 12px; font-size: 13px; }

/* Hero */
.kp-hero {
  position: relative;
  overflow-x: clip;
  overflow-y: visible;
  padding: 36px 0 48px;
  background:
    radial-gradient(circle at 12% 10%, rgba(14,124,123,.12), transparent 34%),
    linear-gradient(180deg, #f8fbfb 0%, var(--kp-paper) 100%);
}
[data-theme="dark"] .kp-hero {
  background:
    radial-gradient(circle at 12% 10%, rgba(78,199,196,.12), transparent 34%),
    linear-gradient(180deg, #0c1219 0%, #0c1219 100%);
}
.kp-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
  gap: 28px;
  align-items: start;
}
.kp-hero h1 {
  margin: 8px 0 10px;
  font-size: clamp(32px, 5vw, 52px);
  letter-spacing: -.04em;
  line-height: 1.05;
  color: var(--kp-navy);
}
[data-theme="dark"] .kp-hero h1 { color: var(--kp-ink); }
.kp-hero .kp-sub { margin: 0 0 10px; font-size: clamp(18px, 2.2vw, 24px); font-weight: 600; }
.kp-caption { color: var(--kp-faint); font-size: 14px; }
.kp-powered { margin: 10px 0 18px; font-weight: 700; color: var(--kp-teal); }
.kp-ecg {
  width: 100%;
  height: 48px;
  margin: 8px 0 18px;
}
.kp-ecg path {
  fill: none;
  stroke: var(--kp-teal);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 420;
  animation: kp-ecg 4.5s linear infinite;
}
.kp-stat-row { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 10px; margin-top: 18px; }
.kp-stat {
  padding: 14px;
  border: 1px solid var(--kp-line);
  border-radius: 10px;
  background: var(--kp-card);
}
.kp-stat b { display: block; font-size: 26px; letter-spacing: -.03em; color: var(--kp-teal); }
.kp-stat span { color: var(--kp-muted); font-size: 13px; }

/* TOC */
.kp-toc {
  position: sticky;
  top: 58px;
  z-index: 30;
  border-bottom: 1px solid var(--kp-line);
  background: color-mix(in srgb, var(--kp-paper) 88%, transparent);
  backdrop-filter: blur(8px);
}
.kp-toc ol {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  margin: 0;
  padding: 10px 0;
  list-style: none;
}
.kp-toc a.kp-btn { border-radius: 999px; }
.kp-toc a.is-active {
  background: var(--kp-teal);
  border-color: var(--kp-teal);
  color: #fff;
}

/* Compare */
.kp-compare { display: grid; grid-template-columns: 1fr auto 1fr; gap: 16px; align-items: start; }
.kp-vs { align-self: center; color: var(--kp-faint); font-weight: 700; }
.kp-flow { display: grid; gap: 8px; }
.kp-flow-step {
  position: relative;
  padding: 12px 14px;
  border: 1px solid var(--kp-line);
  border-radius: 10px;
  background: var(--kp-card);
  font-weight: 600;
}
.kp-flow-step small { display: block; color: var(--kp-muted); font-weight: 400; }
.kp-flow-step::after {
  content: "";
  position: absolute;
  left: 22px;
  bottom: -9px;
  width: 2px;
  height: 8px;
  background: var(--kp-teal);
}
.kp-flow-step:last-child::after { display: none; }
.kp-bad { border-color: #e4cfc0; }
.kp-good { border-color: #b7d8d4; background: var(--kp-soft); }

/* Architecture */
.kp-arch {
  display: grid;
  gap: 12px;
  justify-items: center;
}
.kp-node {
  width: min(100%, 520px);
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--kp-line);
  background: var(--kp-card);
  text-align: center;
}
.kp-node--core {
  background: #0d2744;
  color: #fff;
  border: 0;
}
[data-theme="dark"] .kp-node--core { background: #17324d; }
.kp-node--core small { color: #b7d8d4; }
.kp-agents { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; width: 100%; }
.kp-infra {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(5, minmax(0,1fr));
  gap: 8px;
}
.kp-chip {
  padding: 10px 8px;
  border: 1px solid var(--kp-line);
  border-radius: 8px;
  background: var(--kp-card);
  text-align: center;
  font-size: 12px;
  font-weight: 600;
}
.kp-pulse { position: relative; }
.kp-pulse::before {
  content: "";
  position: absolute;
  top: 10px;
  right: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2ecc8a;
  animation: kp-pulse 1.6s ease-in-out infinite;
}

/* Matrix */
.kp-table-wrap { overflow-x: auto; }
.kp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.kp-table th, .kp-table td {
  padding: 10px 12px;
  border: 1px solid var(--kp-line);
  text-align: left;
  vertical-align: top;
}
.kp-table th { background: var(--kp-soft); }
.kp-lvl { display: inline-block; min-width: 64px; font-weight: 700; color: var(--kp-teal); }

/* Loop */
.kp-loop {
  display: grid;
  grid-template-columns: repeat(8, minmax(0,1fr));
  gap: 8px;
}
.kp-loop span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 72px;
  padding: 8px;
  border-radius: 10px;
  background: var(--kp-soft);
  text-align: center;
  font-size: 12px;
  font-weight: 700;
}
.kp-loop span:nth-child(odd) { background: #0d2744; color: #fff; }
[data-theme="dark"] .kp-loop span:nth-child(odd) { background: #17324d; }

/* Dashboard mock */
.kp-dash { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; }
.kp-dash article { min-height: 128px; }
.kp-dash .bar {
  height: 8px;
  margin-top: 16px;
  border-radius: 99px;
  background: var(--kp-line);
  overflow: hidden;
}
.kp-dash .bar i {
  display: block;
  height: 100%;
  background: var(--kp-teal);
  width: 72%;
}

/* Quote */
.kp-quote {
  margin: 0;
  padding: 20px 22px;
  border-left: 4px solid var(--kp-teal);
  background: var(--kp-soft);
  font-size: 18px;
  font-weight: 600;
}

.kp-section--deep .kp-lead,
.kp-section--deep p { color: #c9d8de; }
.kp-section--deep .kp-card { color: var(--kp-ink); }

@keyframes kp-ecg {
  from { stroke-dashoffset: 420; }
  to { stroke-dashoffset: 0; }
}
@keyframes kp-pulse {
  50% { transform: scale(.6); opacity: .45; }
}

.kp-btn:focus-visible,
.kp-toc a:focus-visible,
.kp-skip:focus-visible {
  outline: 2px solid var(--kp-focus);
  outline-offset: 2px;
}

@media (max-width: 960px) {
  .kp-hero-grid, .kp-compare, .kp-agents, .kp-grid-2, .kp-grid-3, .kp-grid-4, .kp-dash, .kp-infra, .kp-loop {
    grid-template-columns: 1fr 1fr;
  }
  .kp-compare { grid-template-columns: 1fr; }
  .kp-vs { display: none; }
}
@media (max-width: 720px) {
  .kp-hero { padding-top: 20px; }
  .kp-hero-grid, .kp-stat-row, .kp-agents, .kp-grid-2, .kp-grid-3, .kp-grid-4, .kp-dash, .kp-infra, .kp-loop {
    grid-template-columns: 1fr;
  }
  .kp-section { padding: 44px 0; }
  .kp-toc { top: 50px; }
}
/* Section entrance — only when JS enabled */
.kp-anim .kp-section .kp-card,
.kp-anim .kp-section .kp-flow-step,
.kp-anim .kp-section .kp-node,
.kp-anim .kp-section .kp-chip,
.kp-anim .kp-section .kp-stat,
.kp-anim .kp-section .kp-quote,
.kp-anim .kp-hero .kp-stat {
  opacity: 0;
  transform: translateY(22px);
}
.kp-inview .kp-card,
.kp-inview .kp-flow-step,
.kp-inview .kp-node,
.kp-inview .kp-chip,
.kp-inview .kp-stat,
.kp-inview .kp-quote,
.kp-hero.kp-inview .kp-stat {
  animation: kp-rise .7s cubic-bezier(.2,.7,.2,1) forwards;
}
.kp-inview .kp-card:nth-child(2), .kp-inview .kp-flow-step:nth-child(2), .kp-inview .kp-chip:nth-child(2) { animation-delay: .08s; }
.kp-inview .kp-card:nth-child(3), .kp-inview .kp-flow-step:nth-child(3), .kp-inview .kp-chip:nth-child(3) { animation-delay: .14s; }
.kp-inview .kp-card:nth-child(4), .kp-inview .kp-flow-step:nth-child(4), .kp-inview .kp-chip:nth-child(4) { animation-delay: .2s; }
.kp-inview .kp-card:nth-child(5), .kp-inview .kp-flow-step:nth-child(5), .kp-inview .kp-chip:nth-child(5) { animation-delay: .26s; }
.kp-inview .kp-card:nth-child(6), .kp-inview .kp-flow-step:nth-child(6), .kp-inview .kp-chip:nth-child(6) { animation-delay: .32s; }
.kp-inview .kp-loop span { animation: kp-pop .45s ease forwards; }
.kp-inview .kp-loop span:nth-child(1) { animation-delay: .05s; }
.kp-inview .kp-loop span:nth-child(2) { animation-delay: .1s; }
.kp-inview .kp-loop span:nth-child(3) { animation-delay: .15s; }
.kp-inview .kp-loop span:nth-child(4) { animation-delay: .2s; }
.kp-inview .kp-loop span:nth-child(5) { animation-delay: .25s; }
.kp-inview .kp-loop span:nth-child(6) { animation-delay: .3s; }
.kp-inview .kp-loop span:nth-child(7) { animation-delay: .35s; }
.kp-inview .kp-loop span:nth-child(8) { animation-delay: .4s; }
.kp-inview .kp-dash .bar i { animation: kp-bar 1.2s ease forwards; transform-origin: left; }
.kp-loop span.is-live { outline: 2px solid var(--kp-teal); box-shadow: 0 0 0 6px rgba(14,124,123,.15); }

/* Live demo shells */
.kp-demo {
  margin-top: 24px;
  padding: 18px;
  border: 1px solid var(--kp-line);
  border-radius: 14px;
  background: linear-gradient(180deg, var(--kp-card), var(--kp-soft));
}
.kp-demo-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}
.kp-demo-head h3 { margin: 0; }
.kp-demo-log {
  min-height: 132px;
  max-height: 180px;
  overflow: auto;
  padding: 12px;
  border-radius: 8px;
  background: #0d2744;
  color: #d7eceb;
  font: 12px/1.55 var(--kp-mono);
}
[data-theme="dark"] .kp-demo-log { background: #0a1017; }
.kp-demo-log div + div { margin-top: 4px; }
.kp-demo-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0,1fr));
  gap: 8px;
  margin: 12px 0;
}
.kp-demo-step {
  min-height: 64px;
  padding: 8px;
  border-radius: 8px;
  border: 1px solid var(--kp-line);
  background: var(--kp-card);
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  opacity: .45;
}
.kp-demo-step.is-on { opacity: 1; border-color: var(--kp-teal); background: var(--kp-soft); }
.kp-demo-step.is-done { opacity: 1; color: var(--kp-ok); }
.kp-meter { height: 10px; border-radius: 99px; background: var(--kp-line); overflow: hidden; }
.kp-meter i { display: block; height: 100%; width: 0; background: var(--kp-teal); transition: width .6s ease; }

/* ESG calculator */
.kp-esg-grid { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(0, .9fr); gap: 16px; }
.kp-field { display: grid; gap: 4px; margin-bottom: 10px; font-size: 13px; color: var(--kp-muted); }
.kp-field input {
  min-height: 42px;
  padding: 8px 10px;
  border: 1px solid var(--kp-line);
  border-radius: 8px;
  background: var(--kp-card);
  color: var(--kp-ink);
  font: 600 14px var(--kp-font);
}
.kp-esg-result {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.kp-esg-big { font-size: 28px; font-weight: 700; letter-spacing: -.03em; color: var(--kp-teal); }
.kp-bars { display: grid; gap: 10px; margin-top: 12px; }
.kp-bars label { display: flex; justify-content: space-between; font-size: 12px; font-weight: 700; }
.kp-layer { display: flex; height: 14px; border-radius: 99px; overflow: hidden; background: var(--kp-line); }
.kp-layer b { display: block; height: 100%; }
.kp-l-gpu { background: #b42318; }
.kp-l-light { background: #b54708; }
.kp-l-rule { background: #1d4ed8; }
.kp-l-det { background: #0e7c7b; }

@keyframes kp-rise {
  to { opacity: 1; transform: none; }
}
@keyframes kp-pop {
  from { opacity: 0; transform: scale(.92); }
  to { opacity: 1; transform: none; }
}
@keyframes kp-bar {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

@media (max-width: 960px) {
  .kp-esg-grid, .kp-demo-track { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .kp-esg-grid, .kp-esg-result, .kp-demo-track { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .kp-ecg path, .kp-pulse::before { animation: none !important; }
  .kp-section .kp-card,
  .kp-section .kp-flow-step,
  .kp-section .kp-node,
  .kp-section .kp-chip,
  .kp-section .kp-stat,
  .kp-section .kp-quote,
  .kp-hero .kp-stat {
    opacity: 1;
    transform: none;
    animation: none !important;
  }
}