:root {
  --ink: #1E2227; --body: #474D55; --muted: #747B84; --accent: #2F6B4F; --accent-soft: #E3EFE8;
  --mint: #7FD1A8; --bg: #F6F5F2; --panel: #FFFFFF; --line: #DEDBD4;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #F1F1EE; --body: #C9CCD0; --muted: #969CA4; --accent: #7FD1A8; --accent-soft: #1F3329;
    --bg: #15181B; --panel: #1E2227; --line: #333940;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--body); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, sans-serif; }
a { color: var(--accent); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header.top { padding: 22px 0; }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 700; font-size: 18px; text-decoration: none; }
.brand img { width: 30px; height: 30px; }
nav a { color: var(--body); text-decoration: none; margin-left: 18px; font-size: 15px; }
nav a:hover { color: var(--accent); }
h1 { color: var(--ink); font-size: clamp(30px, 6vw, 44px); line-height: 1.15; margin: 40px 0 14px; letter-spacing: -0.02em; }
h2 { color: var(--ink); font-size: 24px; margin: 44px 0 10px; }
h3 { color: var(--ink); font-size: 18px; margin: 0 0 6px; }
.lead { font-size: 20px; color: var(--body); max-width: 620px; }
.btn { display: inline-block; background: var(--accent); color: #fff; text-decoration: none; font-weight: 600; padding: 12px 22px; border-radius: 8px; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn { color: #15181B; } }
.btn.ghost { background: transparent; color: var(--accent); border: 1.5px solid var(--accent); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 18px 0; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 18px; }
.card p { margin: 0; font-size: 15px; }
.tool { display: flex; gap: 16px; align-items: flex-start; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 20px; text-decoration: none; color: inherit; }
.tool img { width: 48px; height: 48px; flex: none; }
.tool:hover { border-color: var(--accent); }
.tag { display: inline-block; font-size: 12px; font-weight: 600; color: var(--accent); background: var(--accent-soft); border-radius: 999px; padding: 2px 9px; margin-left: 6px; vertical-align: middle; }
kbd { font: 13px ui-monospace, SFMono-Regular, monospace; background: var(--panel); border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; padding: 1px 6px; color: var(--ink); }
ul.clean { padding-left: 20px; }
ul.clean li { margin: 6px 0; }
.prose h2 { font-size: 20px; margin-top: 32px; }
.muted { color: var(--muted); font-size: 15px; }
footer.bottom { border-top: 1px solid var(--line); margin-top: 64px; padding: 24px 0 40px; font-size: 14px; color: var(--muted); }
footer.bottom a { color: var(--muted); margin-right: 16px; }
/* Demo form */
form.demo { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 22px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
form.demo label { display: flex; flex-direction: column; font-size: 14px; color: var(--ink); font-weight: 500; }
form.demo label.wide, form.demo .wide { grid-column: 1 / -1; }
form.demo input, form.demo select { margin-top: 5px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 7px; font: inherit; font-size: 15px; background: var(--bg); color: var(--ink); }
form.demo .check { flex-direction: row; align-items: center; gap: 8px; font-weight: 400; }
form.demo .check input { margin: 0; }
@media (max-width: 560px) { form.demo { grid-template-columns: 1fr; } nav a { margin-left: 12px; } }