/* The site of NSGo Kubai Icons: one static page in English and one in
   Chinese, white with Kubai's blue, dark when the system is. */

:root {
  --bg: #ffffff;
  --soft: #f6f7f9;
  --border: #e7e8ec;
  --text: #0c0d10;
  --muted: #666a73;
  --blue: #5393ff;
  --blue-ink: #2f6fe0;
  --gradient: linear-gradient(135deg, #93bbff, #5393ff 55%, #2f6fe0);
  --code: #f8f9fb;
  --shadow: 0 2px 6px rgb(16 24 40 / 5%), 0 40px 80px -32px rgb(16 24 40 / 28%);
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1012;
    --soft: #17181b;
    --border: #2a2c31;
    --text: #f2f3f5;
    --muted: #9a9ea8;
    --blue-ink: #93bbff;
    --code: #17181b;
    --shadow: 0 40px 80px -32px rgb(0 0 0 / 60%);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

code, pre { font: 14px/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; tab-size: 4; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

header .wrap {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}

header .name { font-weight: 600; color: var(--text); margin-right: auto; }
header a:not(.name) { color: var(--muted); font-size: 15px; }

.hero { text-align: center; padding: 72px 0 48px; }

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(36px, 6vw, 60px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero h1 span {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p { margin: 0 auto 32px; max-width: 640px; color: var(--muted); font-size: 19px; }

.actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

.button {
  display: inline-flex;
  align-items: center;
  height: 44px;
  padding: 0 22px;
  border-radius: 12px;
  font-weight: 600;
  border: 1px solid var(--border);
  color: var(--text);
}

.button:hover { text-decoration: none; background: var(--soft); }
.button.primary { background: var(--gradient); border-color: transparent; color: #fff; }
.button.primary:hover { filter: brightness(1.05); }

.shot {
  display: block;
  width: 100%;
  height: auto;
  margin: 0 auto 96px;
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

section { padding: 0 0 88px; }
section h2 { margin: 0 0 8px; font-size: 30px; letter-spacing: -0.01em; }
section > .wrap > p { margin: 0 0 28px; color: var(--muted); max-width: 680px; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
}

.features div { padding: 22px; border-radius: 16px; background: var(--soft); }
.features h3 { margin: 0 0 6px; font-size: 17px; }
.features p { margin: 0; color: var(--muted); font-size: 15px; }

.code { position: relative; margin: 0 0 16px; }

.code pre {
  margin: 0;
  padding: 18px 20px;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--code);
}

.code button {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

footer { border-top: 1px solid var(--border); padding: 32px 0 48px; color: var(--muted); font-size: 14px; }
footer p { margin: 0 0 6px; }