:root {
  color-scheme: light dark;
  --bg: #f5f7fb;
  --fg: #1c2430;
  --muted: #5c6675;
  --panel: #ffffff;
  --line: #d9e0ea;
  --accent: #1267d8;
  --accent-2: #0f8f7b;
  --soft: #eaf2ff;
  --code: #edf2f8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11161d;
    --fg: #eef3fa;
    --muted: #a9b3c2;
    --panel: #1b232e;
    --line: #303a47;
    --accent: #78b7ff;
    --accent-2: #6ee3ce;
    --soft: #17283d;
    --code: #252f3b;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Segoe UI", "Malgun Gothic", Arial, sans-serif;
  line-height: 1.65;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.shell {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

header {
  background: linear-gradient(180deg, var(--panel), var(--bg));
  border-bottom: 1px solid var(--line);
}

.hero {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 22px;
  align-items: center;
  padding: 34px 0 28px;
}

.hero img {
  width: 88px;
  height: 88px;
}

h1 {
  margin: 0 0 6px;
  font-size: 34px;
  line-height: 1.18;
}

h2 {
  margin: 34px 0 12px;
  font-size: 24px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}

h3 {
  margin: 22px 0 8px;
  font-size: 18px;
}

p { margin: 8px 0 14px; }
.lead { color: var(--muted); font-size: 17px; margin: 0; }
.version { color: var(--muted); font-size: 14px; }

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 0 18px;
}

nav a, .button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--fg);
  padding: 9px 12px;
  border-radius: 8px;
  font-weight: 600;
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

main { padding: 26px 0 44px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.card h3 { margin-top: 0; }

.icon {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--soft);
  color: var(--accent);
  font-weight: 800;
  margin-right: 8px;
}

.download-box {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.feature-band {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  margin: 18px 0;
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 18px 0;
}

.screenshot {
  display: block;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.screenshot img {
  display: block;
  width: 100%;
  height: auto;
  border-bottom: 1px solid var(--line);
}

.screenshot figcaption {
  padding: 12px 14px;
  color: var(--muted);
  font-size: 14px;
}

.preview {
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 10px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

th, td {
  border-bottom: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

th { background: var(--soft); }
tr:last-child td { border-bottom: 0; }

kbd, code {
  background: var(--code);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 6px;
  font-family: Consolas, "Segoe UI", monospace;
}

.note {
  border-left: 4px solid var(--accent-2);
  background: var(--panel);
  padding: 12px 14px;
  border-radius: 0 8px 8px 0;
}

footer {
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding: 22px 0 34px;
}

@media (max-width: 620px) {
  .hero { grid-template-columns: 1fr; }
  .hero img { width: 72px; height: 72px; }
  h1 { font-size: 28px; }
}