:root { --bg: #f6f6f5; --card: #fff; --ink: #1a1a1a; --mute: #595959; --line: #dcdcdc; --red: #d42417; --green: #17703a; color-scheme: light; }
@media (prefers-color-scheme: dark) { :root { --bg: #161616; --card: #222; --ink: #eee; --mute: #aaa; --line: #3a3a3a; --red: #ff6b5f; --green: #6fd193; color-scheme: dark; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 system-ui, "Segoe UI", Roboto, sans-serif; }
body.center { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
main.wide { max-width: 760px; margin: 0 auto; padding: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 20px; margin-bottom: 16px; width: 100%; }
body.center .card { max-width: 360px; }
h1 { font-size: 22px; margin: 0 0 12px; } h2 { font-size: 17px; margin: 0 0 10px; }
.top { display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between; align-items: center; margin-bottom: 12px; } .top h1 { margin: 0; }
label { display: block; margin: 12px 0 4px; font-weight: 600; font-size: 14px; }
label.chk { display: flex; gap: 8px; align-items: center; font-weight: 400; } label.chk input { width: auto; }
input, select { width: 100%; padding: 9px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--ink); font: inherit; }
button { padding: 8px 14px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--ink); font: inherit; cursor: pointer; }
button.primary { background: var(--red); border-color: var(--red); color: #fff; font-weight: 600; margin-top: 12px; }
@media (prefers-color-scheme: dark) { button.primary { color: #1a1a1a; } }
button:disabled { opacity: .6; cursor: default; }
a { color: inherit; }
.err { color: var(--red); min-height: 1.4em; margin: 10px 0 0; } .ok { color: var(--green); min-height: 1.4em; margin: 10px 0 0; }
.note { color: var(--mute); font-size: 14px; }
.banner { background: var(--card); border: 1px solid var(--red); border-radius: 8px; padding: 10px 14px; }
.tw { overflow-x: auto; } table { width: 100%; border-collapse: collapse; } th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); white-space: nowrap; }
[hidden] { display: none !important; }