:root { --paper: #f3e9d2; --ink: #2b2420; --red: #9e2a2b; --line: #c9b48c; --card: #fbf5e8; }
@media (prefers-color-scheme: dark) { :root { --paper: #1c1a17; --ink: #ece4d4; --red: #e0785f; --line: #4a4236; --card: #26231f; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 15px/1.7 system-ui, "Malgun Gothic", "Apple SD Gothic Neo", sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 24px 16px 60px; }
h1 { color: var(--red); font-size: 24px; margin: 0 0 8px; }
h2 { font-size: 17px; margin: 28px 0 8px; border-bottom: 1px solid var(--line); padding-bottom: 4px; }
.meta { font-size: 13px; opacity: 0.8; margin: 2px 0; }
a { color: var(--red); }
table { border-collapse: collapse; width: 100%; font-size: 14px; display: block; overflow-x: auto; }
th, td { border: 1px solid var(--line); padding: 6px 8px; text-align: left; vertical-align: top; }
th { background: var(--card); }
.warn { background: var(--card); border: 1px solid var(--red); border-radius: 8px; padding: 12px; font-size: 14px; margin: 16px 0; }
form label { display: block; margin: 10px 0; }
form input[type=text], form input:not([type]), form input[type=password] { display: block; width: 100%; max-width: 320px; font: inherit; padding: 8px; margin-top: 4px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--ink); }
.chk { font-size: 14px; }
button { font: inherit; background: var(--red); color: #fff; border: 0; border-radius: 6px; padding: 10px 18px; cursor: pointer; }
#msg.ok { color: #2f6b3a; font-weight: 600; }
#msg.err { color: var(--red); font-weight: 600; }