:root {
  --sky: #e8f3ff;
  --sky2: #fdf2f8;
  --ink: #0f172a;
  --muted: #64748b;
  --coral: #fb7185;
  --cyan: #38bdf8;
  --glass: rgba(255, 255, 255, 0.72);
  --line: rgba(15, 23, 42, 0.08);
  --max: 1100px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  font-family: "Be Vietnam Pro", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  background:
    radial-gradient(900px 480px at 0% 0%, rgba(56, 189, 248, 0.28), transparent 55%),
    radial-gradient(800px 520px at 100% 10%, rgba(251, 113, 133, 0.22), transparent 50%),
    linear-gradient(180deg, var(--sky) 0%, #fff 42%, var(--sky2) 100%);
  min-height: 100%;
}
a { color: #0284c7; }
img { display: block; max-width: 100%; height: auto; }
.skip {
  position: absolute;
  left: 10px;
  top: -42px;
  background: #fff;
  padding: 6px 10px;
  z-index: 30;
}
.skip:focus { top: 10px; }

.float-nav {
  position: sticky;
  top: 12px;
  z-index: 20;
  width: min(var(--max), calc(100% - 20px));
  margin: 12px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid var(--line);
  backdrop-filter: blur(14px);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}
.logo {
  text-decoration: none;
  color: var(--ink);
  font-weight: 800;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.logo i {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-style: normal;
  font-size: 12px;
  color: #fff;
  background: linear-gradient(135deg, var(--cyan), var(--coral));
}
.logo small { display: block; font-weight: 500; color: var(--muted); font-size: 11px; letter-spacing: 0; }
.nav {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.nav a {
  text-decoration: none;
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
  padding: 7px 11px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.55);
}
.nav a:hover { background: linear-gradient(90deg, #bae6fd, #fecdd3); }

.shell {
  width: min(var(--max), calc(100% - 20px));
  margin: 0 auto;
  padding: 18px 0 40px;
}

.intro {
  display: grid;
  gap: 18px;
  margin: 22px 0 18px;
}
.intro h1 {
  margin: 0;
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(30px, 8vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.intro h1 span {
  background: linear-gradient(90deg, #0284c7, #e11d48);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.intro p { margin: 0; color: var(--muted); max-width: 40rem; }
.pill-row { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 14px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 13px;
}
.pill-a {
  color: #fff;
  background: linear-gradient(90deg, #0ea5e9, #fb7185);
  box-shadow: 0 8px 20px rgba(14, 165, 233, 0.25);
}
.pill-b {
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
}

.hero-card {
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
  margin-bottom: 18px;
}
.hero-card img { width: 100%; max-height: 440px; object-fit: cover; }
.hero-card figcaption {
  padding: 12px 16px 14px;
  color: var(--muted);
  font-size: 13px;
}

.story {
  display: grid;
  gap: 14px;
  margin: 0 0 18px;
}
.glass {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 16px;
  backdrop-filter: blur(10px);
}
.glass h2 {
  margin: 0 0 10px;
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(22px, 4vw, 30px);
}
.glass h3 {
  margin: 14px 0 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #e11d48;
}
.glass p { margin: 0 0 10px; color: #334155; }
.meta { color: var(--muted); font-size: 13px; }

.mosaic {
  display: grid;
  gap: 12px;
}
.mosaic figure {
  margin: 0;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
}
.mosaic figcaption {
  padding: 8px 10px 10px;
  font-size: 12px;
  color: var(--muted);
}

.cloud {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.cloud li {
  border-radius: 999px;
  padding: 8px 12px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 12px;
  font-weight: 700;
  color: #0f172a;
  word-break: break-word;
  max-width: 100%;
}
.cloud li.soft {
  background: linear-gradient(90deg, rgba(186, 230, 253, 0.65), rgba(254, 205, 211, 0.65));
  font-weight: 600;
  font-size: 12px;
}
.cloud.core li {
  background: #0f172a;
  color: #e0f2fe;
  border-color: transparent;
}
.cloud.core b { color: #fb7185; }

.faq details {
  border-top: 1px solid var(--line);
  padding: 10px 0;
}
.faq summary {
  cursor: pointer;
  font-weight: 700;
}
.faq p { margin: 8px 0 0; }

.foot {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  padding-top: 8px;
}

@media (min-width: 860px) {
  .intro { grid-template-columns: 1.2fr 0.8fr; align-items: end; }
  .mosaic { grid-template-columns: 1.1fr 0.9fr; }
  .mosaic .tall { grid-row: span 2; }
  body { font-size: 17px; }
}