@font-face {
  font-family: "Antonio";
  src: url("assets/antonio.woff2") format("woff2");
  font-weight: 100 700;
  font-display: swap;
}

:root {
  --ink: #0d0c0a;
  --raised: #16140f;
  --paper: #e8e1cf;
  --dust: #a39a86;
  --ash: #827b6c;
  --faint: rgba(232, 225, 207, 0.3);
  --rule: rgba(232, 225, 207, 0.12);
  --accent: #ecc553;
  --latin: "Antonio", "Arial Narrow", sans-serif;
  --cjk: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  --gutter: 16px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font: 400 16px/1.7 var(--cjk);
  overflow-x: hidden;
}

a { color: inherit; }

.wrap {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

@media (min-width: 720px) {
  :root { --gutter: 32px; }
}

/* Hero */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: url("assets/bg.webp") center 30% / cover no-repeat;
}

/* Left side stays dark so the text reads over the busiest part of the collage. */
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(13, 12, 10, 0.88) 0%, rgba(13, 12, 10, 0.5) 55%, rgba(13, 12, 10, 0.25) 100%),
    linear-gradient(180deg, rgba(13, 12, 10, 0) 60%, var(--ink) 100%);
}

.hero-inner { padding-top: 72px; padding-bottom: 96px; }

.eyebrow {
  margin: 0 0 24px;
  font: 500 13px/1.4 var(--latin);
  letter-spacing: 0.16em;
  color: var(--dust);
}

.brand {
  display: flex;
  align-items: center;
  gap: 20px;
}

.logo {
  width: 72px;
  height: 72px;
  flex: none;
}

h1 {
  margin: 0;
  font: 700 44px/1.1 var(--cjk);
  letter-spacing: 0.08em;
}

.lead {
  margin: 24px 0 0;
  max-width: 36em;
  font-size: 18px;
  color: var(--paper);
}

.cta { margin-top: 40px; }

.btn {
  display: inline-block;
  padding: 14px 32px;
  background: var(--accent);
  color: var(--ink);
  border-radius: 2px;
  font: 600 17px/1.2 var(--cjk);
  letter-spacing: 0.12em;
  text-decoration: none;
  transition: background-color 140ms ease-out, color 140ms ease-out;
}

.btn:hover { background: #f4d877; }
.btn:active { background: #d9b33f; }

.btn:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.cta-note {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--dust);
  letter-spacing: 0.04em;
}

.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ash);
  text-decoration: none;
}

.scroll-hint:hover { color: var(--paper); }

@media (min-width: 720px) {
  .logo { width: 88px; height: 88px; }
  h1 { font-size: 64px; }
  .lead { font-size: 20px; }
}

/* Sections */

.section { padding-top: 72px; padding-bottom: 24px; }

.section-title {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin: 0 0 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--rule);
  font: 500 24px/1.3 var(--cjk);
  letter-spacing: 0.12em;
}

.num {
  font: 500 14px/1 var(--latin);
  letter-spacing: 0.1em;
  color: var(--accent);
}

.features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0 48px;
}

@media (min-width: 720px) {
  .features { grid-template-columns: 1fr 1fr; }
}

.features li {
  position: relative;
  padding: 20px 0 24px 36px;
  border-bottom: 1px solid var(--rule);
}

.f-num {
  position: absolute;
  left: 0;
  top: 23px;
  font: 500 15px/1 var(--latin);
  letter-spacing: 0.1em;
  color: var(--ash);
}

.features h3 {
  margin: 0 0 8px;
  font: 500 18px/1.4 var(--cjk);
  letter-spacing: 0.04em;
}

.features p {
  margin: 0;
  font-size: 15px;
  color: var(--dust);
}

/* Changelog */

.release {
  display: grid;
  gap: 4px 32px;
  padding: 16px 0 20px;
  border-bottom: 1px solid var(--rule);
}

@media (min-width: 720px) {
  .release { grid-template-columns: 180px 1fr; }
}

.release-head { margin: 0; }

.release-ver {
  display: block;
  font: 500 19px/1.3 var(--latin);
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
}

.release-date {
  display: block;
  font: 400 13px/1.5 var(--latin);
  letter-spacing: 0.08em;
  color: var(--ash);
  font-variant-numeric: tabular-nums;
}

.release ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.release li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  color: var(--dust);
}

.release li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 6px;
  height: 1px;
  background: var(--ash);
}

.release li + li { margin-top: 4px; }

.older > summary {
  display: inline-block;
  margin-top: 20px;
  padding: 8px 20px;
  border: 1px solid var(--rule);
  border-radius: 2px;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
  transition: border-color 140ms ease-out, color 140ms ease-out;
}

.older > summary::-webkit-details-marker { display: none; }
.older > summary:hover { border-color: var(--accent); color: var(--accent); }
.older[open] > summary { display: none; }

/* Footer */

.footer {
  margin-top: 72px;
  padding-top: 24px;
  padding-bottom: 48px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  color: var(--ash);
}

.footer p { margin: 0 0 8px; max-width: 46em; }
.footer a { text-decoration: none; border-bottom: 1px solid var(--rule); }
.footer a:hover { color: var(--accent); border-color: var(--accent); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

.release code {
  font: 400 0.92em/1 Consolas, "Cascadia Mono", monospace;
  color: var(--paper);
}