/* LAPPING AI INC. — corporate site stylesheet. System fonts only (fast, private). */
:root {
  --bg: #060709;
  --bg-soft: #0b0d11;
  --panel: #0e1116;
  --line: #1d232d;
  --line-soft: #161c26;
  --text: #eef1f6;
  --muted: #9aa5b4;
  --faint: #68748a;
  --accent: #6c8cff;
  --accent-soft: rgba(108, 140, 255, 0.14);
  --cyan: #5fd4e8;
  --radius: 16px;
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 22px; }
.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--accent); color: #06070a; padding: 10px 16px; border-radius: 0 0 10px 0; font-weight: 600;
}
.skip:focus { left: 0; }

/* Header */
header.site {
  position: sticky; top: 0; z-index: 50;
  background: rgba(6, 7, 9, 0.82);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line-soft);
}
.nav { display: flex; align-items: center; gap: 26px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: 0.02em; color: var(--text); font-size: 15px; }
.brand:hover { text-decoration: none; }
.brand svg { display: block; }
.nav-links { display: flex; align-items: center; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--muted); font-size: 14px; font-weight: 500; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--text); }
.cta {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 40px; padding: 0 18px; border-radius: 10px;
  background: var(--text); color: #06070a; font-weight: 600; font-size: 14px;
  border: 1px solid transparent; cursor: pointer;
}
.cta:hover { background: #fff; text-decoration: none; }
.cta.ghost { background: transparent; color: var(--text); border-color: var(--line); }
.cta.ghost:hover { border-color: var(--accent); background: var(--accent-soft); }
.cta.big { height: 50px; padding: 0 26px; font-size: 15px; border-radius: 12px; }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: 9px; padding: 8px 10px; color: var(--text); cursor: pointer; }

@media (max-width: 760px) {
  .menu-btn { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; }
  .nav-links {
    position: fixed; inset: 64px 0 auto 0; display: none; flex-direction: column; align-items: stretch;
    background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 14px 22px 20px; gap: 4px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 6px; font-size: 15px; border-bottom: 1px solid var(--line-soft); }
  .nav-links .cta { margin-top: 10px; }
}

/* Hero */
.hero { position: relative; padding: 96px 0 72px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(720px 320px at 82% -10%, rgba(108, 140, 255, 0.12), transparent 62%),
    radial-gradient(560px 260px at 8% 110%, rgba(95, 212, 232, 0.07), transparent 60%);
}
.hero .grid-bg {
  position: absolute; inset: 0; opacity: 0.5; pointer-events: none;
  background-image: linear-gradient(var(--line-soft) 1px, transparent 1px), linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(900px 480px at 60% 30%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(900px 480px at 60% 30%, #000 20%, transparent 75%);
}
.hero-inner { position: relative; max-width: 780px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--cyan); font-weight: 600; }
h1 { font-size: clamp(2.4rem, 5.4vw, 4rem); line-height: 1.04; letter-spacing: -0.025em; margin: 18px 0 0; font-weight: 750; }
.mission-line { font-size: clamp(1.25rem, 2.6vw, 1.8rem); line-height: 1.35; color: var(--muted); margin: 22px 0 0; max-width: 640px; }
.mission-line strong { color: var(--text); font-weight: 650; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.hero-note { margin-top: 18px; font-size: 13px; color: var(--faint); }

/* Sections */
section.block { padding: 64px 0; border-top: 1px solid var(--line-soft); }
.kicker { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); font-weight: 650; margin: 0 0 14px; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); letter-spacing: -0.02em; line-height: 1.15; margin: 0 0 18px; font-weight: 700; }
h3 { font-size: 1.15rem; margin: 0 0 8px; font-weight: 650; }
.lede { color: var(--muted); font-size: 1.06rem; max-width: 720px; margin: 0 0 12px; }
.prose p { color: var(--muted); max-width: 720px; margin: 0 0 14px; }
.prose strong { color: var(--text); font-weight: 600; }

.grid { display: grid; gap: 18px; }
.grid.two { grid-template-columns: repeat(2, 1fr); }
.grid.three { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) { .grid.two, .grid.three { grid-template-columns: 1fr; } }

.card {
  background: linear-gradient(180deg, var(--panel), #0b0e13);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 24px;
}
.card p { color: var(--muted); margin: 0 0 10px; font-size: 0.95rem; }
.card p:last-child { margin-bottom: 0; }
.card .num { font-size: 12px; color: var(--faint); font-weight: 650; letter-spacing: 0.1em; }
.card.featured { border-color: rgba(108, 140, 255, 0.4); background: linear-gradient(180deg, rgba(108, 140, 255, 0.08), #0b0e13); }
.tag { display: inline-flex; align-items: center; height: 24px; padding: 0 10px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); font-size: 12px; font-weight: 550; }

.mission-banner {
  border: 1px solid rgba(108, 140, 255, 0.35);
  background: linear-gradient(135deg, rgba(108, 140, 255, 0.10), rgba(95, 212, 232, 0.05));
  border-radius: 20px; padding: clamp(28px, 5vw, 52px);
}
.mission-banner p.statement { font-size: clamp(1.35rem, 3vw, 2.1rem); line-height: 1.3; letter-spacing: -0.01em; font-weight: 700; margin: 0; }

.list-clean { list-style: none; padding: 0; margin: 0; }
.list-clean li { padding: 10px 0 10px 26px; position: relative; color: var(--muted); }
.list-clean li::before { content: ""; position: absolute; left: 0; top: 18px; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); }
.list-clean li strong { color: var(--text); font-weight: 600; }

.founder { display: grid; grid-template-columns: 120px 1fr; gap: 22px; align-items: start; }
@media (max-width: 560px) { .founder { grid-template-columns: 1fr; } }
.founder .avatar { width: 120px; height: 120px; border-radius: 20px; border: 1px solid var(--line); background: linear-gradient(135deg, var(--accent-soft), rgba(95, 212, 232, 0.10)); display: grid; place-items: center; font-size: 34px; font-weight: 700; color: var(--accent); }

.final-cta { text-align: center; padding: 84px 0 76px; }
.final-cta p { color: var(--muted); max-width: 560px; margin: 0 auto 30px; }

footer.site { border-top: 1px solid var(--line-soft); padding: 44px 0 52px; color: var(--faint); font-size: 13.5px; }
footer .cols { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 26px; }
@media (max-width: 760px) { footer .cols { grid-template-columns: 1fr 1fr; } }
footer h4 { color: var(--text); font-size: 13px; margin: 0 0 10px; font-weight: 650; }
footer a { color: var(--muted); display: block; padding: 3px 0; }
footer a:hover { color: var(--text); text-decoration: none; }
footer .fine { margin-top: 30px; padding-top: 18px; border-top: 1px solid var(--line-soft); display: flex; flex-wrap: wrap; gap: 8px 22px; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line-soft); }
th { color: var(--faint); font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; font-weight: 650; }
td { color: var(--muted); }
tr:last-child td { border-bottom: none; }

.note { border-left: 3px solid var(--accent); padding: 12px 16px; background: var(--accent-soft); border-radius: 0 10px 10px 0; color: var(--muted); font-size: 14px; }
.small { font-size: 13px; color: var(--faint); }
.mt-1 { margin-top: 10px; } .mt-2 { margin-top: 20px; } .mt-3 { margin-top: 32px; }
.center { text-align: center; }