:root { --fg: #1d1d1f; --muted: #6e6e73; --line: #d2d2d7; --accent: #4a5560; --ok: #1e7e34; --err: #b00020; --bg: #f5f5f7; }
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--fg); background: var(--bg); }
main { max-width: 760px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 1.6rem; margin: 0 0 8px; }
h2 { font-size: 1.2rem; margin: 24px 0 8px; }
a { color: var(--accent); }
.demo { background: #fff3cd; color: #664d03; text-align: center; padding: 6px 16px; font-size: .9rem; }
.muted { color: var(--muted); }
.right { text-align: right; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin: 16px 0; }
label { display: block; margin-bottom: 12px; font-weight: 600; }
input { display: block; width: 100%; margin-top: 4px; padding: 10px 12px; font: inherit; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.btn { display: inline-block; padding: 10px 18px; font: inherit; font-weight: 600; color: #fff; background: var(--accent); border: 0; border-radius: 8px; cursor: pointer; text-decoration: none; }
.btn:disabled { opacity: .5; cursor: default; }
.pdf { width: 100%; height: 70vh; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.vc { font-size: 2.4rem; font-weight: 700; letter-spacing: .2em; margin: 4px 0; }
.ok { color: var(--ok); }
.ok .btn { margin-left: 8px; }
.err { color: var(--err); }
table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: 8px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.kv th { width: 34%; color: var(--muted); font-weight: 500; }
.link { margin: 0; font-size: .9rem; }
.st-done { color: var(--ok); }
.st-error { color: var(--err); }
@media (max-width: 560px) { .pdf { height: 55vh; } th, td { padding: 6px; font-size: .92rem; } }