/* KloudPerformance LLC — corp site. Hand-coded, no frameworks. Light theme. */
:root {
  --bg: #f6f8fb;
  --bg2: #e9edf4;
  --card: #ffffff;
  --line: #d9e1ec;
  --ink: #152238;
  --muted: #5a6b86;
  --accent: #0b6cff;
  --accent-dim: #e3efff;
  --gold: #b57e0a;
  --radius: 14px;
  --max: 1080px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  font-size: 17px;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 22px; }

/* Header */
header.site {
  position: sticky; top: 0; z-index: 50;
  background: rgba(246, 248, 251, .94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-weight: 800; font-size: 19px; color: var(--ink); letter-spacing: .3px; }
.brand span { color: var(--accent); }
.nav-links { display: flex; gap: 26px; list-style: none; }
.nav-links a { color: var(--muted); font-weight: 600; font-size: 15.5px; }
.nav-links a:hover, .nav-links a.active { color: var(--ink); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); color: var(--ink);
  border-radius: 8px; padding: 8px 12px; font-size: 18px; cursor: pointer; }

/* Hero */
.hero { padding: 76px 0 56px; text-align: center;
  background: radial-gradient(900px 420px at 50% -80px, #d7e9ff 0%, transparent 70%); }
.eyebrow { display: inline-block; font-size: 13px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--accent); border: 1px solid #bcd6ff; border-radius: 999px;
  padding: 6px 16px; margin-bottom: 22px; background: #fff; }
.hero h1 { font-size: clamp(32px, 5.4vw, 54px); line-height: 1.15; letter-spacing: -1px; margin-bottom: 16px; }
.hero h1 .gold { color: var(--gold); }
.hero p.lede { color: var(--muted); font-size: 19px; max-width: 700px; margin: 0 auto 30px; }
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-block; padding: 13px 28px; border-radius: 10px; font-weight: 700;
  font-size: 16px; border: 1px solid transparent; cursor: pointer; }
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #2f83ff; }
.btn-ghost { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-ghost:hover { border-color: var(--accent); }

/* Proof bar */
.proof { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: #fff; }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; padding: 28px 22px; }
.proof-item { text-align: center; }
.proof-num { font-size: 32px; font-weight: 800; color: var(--gold); }
.proof-label { color: var(--muted); font-size: 14px; margin-top: 4px; }

/* Sections */
section.block { padding: 60px 0; }
section.block h2 { font-size: clamp(26px, 3.6vw, 36px); letter-spacing: -.5px; margin-bottom: 10px; text-align: center; }
section.block p.sub { color: var(--muted); text-align: center; max-width: 680px; margin: 0 auto 36px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 22px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px; box-shadow: 0 2px 10px rgba(21, 34, 56, .05); }
.card h3 { font-size: 21px; margin-bottom: 10px; }
.card h3 .tag { font-size: 12px; color: var(--accent); text-transform: uppercase; letter-spacing: 1.5px;
  display: block; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 15.5px; margin-bottom: 14px; }
.card ul { margin: 0 0 18px 18px; color: var(--muted); font-size: 15.5px; }
.card ul li { margin-bottom: 6px; }

/* Ladder steps */
.steps { display: grid; gap: 18px; max-width: 820px; margin: 0 auto; }
.step { display: grid; grid-template-columns: 64px 1fr; gap: 20px; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; align-items: start;
  box-shadow: 0 2px 10px rgba(21, 34, 56, .05); }
.step-num { width: 56px; height: 56px; border-radius: 50%; background: var(--accent);
  color: #fff; font-weight: 800; font-size: 22px; display: flex; align-items: center; justify-content: center; }
.step h3 { margin-bottom: 6px; }
.step p { color: var(--muted); font-size: 15.5px; }

/* Case study */
.case { background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px; max-width: 860px; margin: 0 auto; box-shadow: 0 2px 10px rgba(21, 34, 56, .05); }
.case blockquote { font-size: 20px; font-style: italic; color: var(--ink); margin-bottom: 16px; }
.case .metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 22px 0; }
.metric { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 16px; text-align: center; }
.metric b { display: block; font-size: 24px; color: var(--gold); }
.metric span { font-size: 13px; color: var(--muted); }

/* Demo chat */
.demo-shell { max-width: 560px; margin: 0 auto; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 4px 18px rgba(21, 34, 56, .08); }
.demo-head { background: var(--bg2); padding: 14px 18px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 12px; }
.demo-dot { width: 12px; height: 12px; border-radius: 50%; background: #16a34a; }
.demo-head b { font-size: 15px; }
.demo-head small { color: var(--muted); display: block; font-size: 12.5px; }
.demo-log { height: 340px; overflow-y: auto; padding: 18px; display: flex; flex-direction: column; gap: 12px; }
.msg { max-width: 82%; padding: 10px 14px; border-radius: 12px; font-size: 15px; line-height: 1.5; }
.msg.bot { background: var(--bg2); border: 1px solid var(--line); align-self: flex-start;
  border-bottom-left-radius: 4px; }
.msg.user { background: var(--accent); align-self: flex-end; border-bottom-right-radius: 4px; color: #fff; }
.demo-input { display: flex; border-top: 1px solid var(--line); }
.demo-input input { flex: 1; background: #fff; border: none; color: var(--ink);
  padding: 14px 16px; font-size: 15px; outline: none; }
.demo-input button { background: var(--accent); color: #fff; border: none; font-weight: 700;
  padding: 0 22px; cursor: pointer; font-size: 15px; }
.demo-note { text-align: center; color: var(--muted); font-size: 13px; margin-top: 12px; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin: 16px 0 4px; }
.chip { background: #fff; border: 1px solid var(--line); color: var(--ink); border-radius: 999px;
  padding: 7px 14px; font-size: 13.5px; cursor: pointer; }
.chip:hover { border-color: var(--accent); }

/* About */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.about-grid h3 { margin: 22px 0 8px; color: var(--accent); font-size: 15px; text-transform: uppercase; letter-spacing: 1.5px; }
.about-grid p, .about-grid li { color: var(--muted); font-size: 15.5px; }
.about-grid ul { margin-left: 18px; }
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { margin-bottom: 10px; }
.timeline b { color: var(--ink); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; max-width: 860px; margin: 0 auto; }
.contact-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; text-align: center; box-shadow: 0 2px 10px rgba(21, 34, 56, .05); }
.contact-card h3 { margin-bottom: 8px; }
.contact-card p { color: var(--muted); font-size: 15px; margin-bottom: 16px; }

/* Footer */
footer.site { border-top: 1px solid var(--line); padding: 34px 0; color: var(--muted); font-size: 14px; background: #fff; }
.foot-grid { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.foot-grid nav { display: flex; gap: 18px; }

.alt { background: var(--bg2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

@media (max-width: 760px) {
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: #fff; flex-direction: column; padding: 18px 22px; gap: 14px;
    border-bottom: 1px solid var(--line); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .case .metrics { grid-template-columns: 1fr; }
  .step { grid-template-columns: 1fr; }
}