:root {
  --ink: #1b2233;
  --muted: #55627a;
  --paper: #f7f6fb;
  --paper-2: #f1eef8;
  --line: #ddd8ea;
  --violet-dark: #4b2f86;
  --violet: #7a4ea8;
  --violet-soft: #f1eaf9;
  --blue: #2f6db5;
  --blue-soft: #eaf2fb;
  --green: #4b8a3b;
  --green-soft: #eef6ea;
  --shadow: 0 18px 48px rgba(75, 47, 134, 0.10);
  --radius: 18px;
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Fraunces", Georgia, "Times New Roman", serif;
  --mono: "JetBrains Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #f1eef8 0, var(--paper) 640px), var(--paper);
  font-family: var(--sans);
  line-height: 1.62;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(122, 78, 168, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122, 78, 168, 0.05) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(180deg, #000 0, transparent 760px);
  pointer-events: none;
}
a { color: var(--violet); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 4px; }
img { max-width: 100%; display: block; }
.icon-sprite { display: none; }

.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 30;
  border-bottom: 1px solid rgba(221, 216, 234, 0.8);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(18px) saturate(160%);
}
.nav-inner {
  width: min(1240px, calc(100% - 40px)); min-height: 66px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand-mark { width: 34px; height: 34px; }
.brand-name { font-family: var(--display); font-size: 1.28rem; font-weight: 700; letter-spacing: 0.01em; }
.brand-name span { color: var(--violet); }
.nav-links { display: flex; flex-wrap: wrap; gap: 18px; font-family: var(--mono); font-size: 0.8rem; font-weight: 700; }
.nav-links a { color: #3a4560; }
.nav-links a:hover { color: var(--violet); }

.hero { padding: 108px 0 18px; text-align: center; }
.hero-inner { width: min(1240px, calc(100% - 48px)); margin: 0 auto; }
.eyebrow, .section-kicker {
  margin: 0 0 14px; color: var(--violet); font-family: var(--mono);
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
}
h1, h2, h3 { margin: 0; line-height: 1.1; }
h1 { font-family: var(--display); font-size: clamp(2.1rem, 2.7vw, 2.7rem); font-weight: 700; text-wrap: balance; }
.title-line { display: block; white-space: nowrap; }
h2 { max-width: 900px; font-family: var(--display); font-size: 2.55rem; font-weight: 700; }
h3 { font-size: 1.2rem; }
.hero-copy { max-width: 900px; margin: 18px auto 0; color: #354258; font-size: 1.08rem; line-height: 1.55; }
.hero-copy u { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--violet); }
.anonymous-submission {
  display: inline-block; margin: 18px auto 0; padding: 6px 14px; border-radius: 999px;
  border: 1px solid rgba(122, 78, 168, 0.3); background: var(--violet-soft); color: var(--violet-dark);
  font-family: var(--mono); font-size: 0.78rem; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase;
}
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 26px auto 0; max-width: 920px; }
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 42px; padding: 12px 22px;
  border: 1px solid currentColor; border-radius: 999px; color: var(--ink); background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 2px 8px rgba(27, 34, 51, 0.05); font-family: var(--mono); font-size: 0.78rem; font-weight: 700; line-height: 1;
  transition: transform 180ms ease, box-shadow 180ms ease;
}
.button:hover { text-decoration: none; transform: translateY(-2px); box-shadow: 0 12px 24px rgba(75, 47, 134, 0.16); }
.button.primary { border-color: var(--ink); background: var(--ink); color: #fff; }
.button.secondary { border-color: var(--line); background: #fff; color: var(--ink); }
.button.accent { border-color: rgba(122, 78, 168, 0.3); background: var(--violet-soft); color: var(--violet-dark); }
.button.accent.soft { border-color: rgba(75, 138, 59, 0.3); background: var(--green-soft); color: #2f6a24; }
.hf-emoji { display: inline-flex; width: 18px; height: 18px; align-items: center; justify-content: center; font-size: 1.06rem; line-height: 1; }
.button svg, .release-item svg { width: 18px; height: 18px; fill: currentColor; }

.section { padding: 84px 0; }
.wrap { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.intro-band { padding: 60px 0 70px; background: rgba(255, 255, 255, 0.92); border-bottom: 1px solid var(--line); }
.intro-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 46px; align-items: center; }
.teaser-figure { margin-top: 34px; }
.lead { margin: 0; color: var(--muted); font-size: 1.08rem; line-height: 1.7; }
.section-head { margin-bottom: 30px; }
.muted { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.paper-figure { margin: 0; }
.paper-figure img {
  width: 100%; border: 1px solid var(--line); border-radius: var(--radius); background: #fff;
  box-shadow: var(--shadow); object-fit: contain; object-position: center; padding: 14px;
}
figcaption { margin-top: 12px; color: var(--muted); font-size: 0.97rem; line-height: 1.55; }
.overview-figure { display: block; }
.overview-figure figcaption {
  margin-top: 14px; padding: 18px 22px; border: 1px solid var(--line); border-left: 4px solid var(--violet);
  border-radius: 16px; background: rgba(255, 255, 255, 0.9); box-shadow: 0 10px 30px rgba(75, 47, 134, 0.06); color: #34445a; font-size: 0.98rem;
}
.feature-grid { display: grid; grid-template-columns: 1fr; gap: 20px; margin-top: 28px; }
.feature-grid article {
  display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr); gap: 22px; align-items: center;
  padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 10px 30px rgba(75, 47, 134, 0.06);
}
.feature-grid img { grid-column: 1; grid-row: 1 / span 2; width: 100%; object-fit: contain; padding: 12px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.feature-grid h3 { grid-column: 2; align-self: end; margin: 0 0 8px; }
.feature-grid p { grid-column: 2; align-self: start; margin: 0; color: var(--muted); font-size: 0.98rem; line-height: 1.55; }
.stats-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-top: 28px; }
.stats-grid article { padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.stats-grid span { display: block; color: var(--violet-dark); font-family: var(--mono); font-size: 1.75rem; font-weight: 800; }
.stats-grid strong { display: block; margin-top: 5px; font-size: 0.95rem; line-height: 1.25; }
.stats-grid p { margin: 8px 0 0; color: var(--muted); font-size: 0.93rem; line-height: 1.5; }
.release-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.release-item {
  min-height: 180px; display: flex; flex-direction: column; gap: 12px; padding: 22px; border: 1px solid var(--line);
  border-radius: var(--radius); background: #fff; color: var(--ink); box-shadow: 0 10px 30px rgba(75, 47, 134, 0.06);
}
.release-item:hover { text-decoration: none; border-color: var(--violet); transform: translateY(-1px); }
.release-item svg { width: 28px; height: 28px; color: var(--violet); }
.release-emoji { display: inline-flex; width: 30px; height: 30px; align-items: center; justify-content: center; font-size: 1.35rem; line-height: 1; }
.release-item strong { font-size: 1.08rem; line-height: 1.25; }
.release-item span { color: var(--muted); font-size: 0.94rem; line-height: 1.5; }
.footnote { margin: 26px 0 0; color: var(--muted); font-size: 0.9rem; }
.case-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr); gap: 40px; align-items: center; }
.site-footer { padding: 28px 0 40px; color: var(--muted); font-size: 0.88rem; text-align: center; border-top: 1px solid var(--line); }

@media (max-width: 1100px) { .title-line { white-space: normal; } }
@media (max-width: 980px) {
  .site-nav { position: static; }
  .nav-inner { display: block; padding: 14px 0; }
  .nav-links { margin-top: 12px; }
  .hero { padding: 48px 0 24px; }
  h1 { font-size: 2.3rem; }
  h2 { font-size: 2.1rem; }
  .intro-grid, .feature-grid, .stats-grid, .release-grid, .case-grid { grid-template-columns: 1fr; }
  .feature-grid article { grid-template-columns: 1fr; }
  .feature-grid img { grid-column: auto; grid-row: auto; }
  .feature-grid h3, .feature-grid p { grid-column: auto; }
  .section { padding: 60px 0; }
}
@media (max-width: 620px) {
  .nav-inner, .wrap, .hero-inner { width: min(100% - 32px, 1180px); }
  h1 { font-size: 1.9rem; }
  h2 { font-size: 1.8rem; }
  .button { width: 100%; min-height: 48px; }
  .release-item { min-height: 0; }
}