:root { color-scheme: light dark; --ink: #0f1b2d; --muted: #667085; --brand: #5a2d8d; --teal: #1f8a87;
  --line: #e7e1f2; --bg: #ffffff; --card: #fbfafd; --bad: #b42318; }
@media (prefers-color-scheme: dark) {
  :root { --ink: #e8e6ef; --muted: #a0a3b1; --brand: #8b5cc8; --teal: #3fb5b1; --line: #2c2740; --bg: #0d1117;
    --card: #161b26; --bad: #f97066; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 system-ui, "Segoe UI", Arial, sans-serif; }
main { max-width: 640px; margin: 0 auto; padding: 24px 16px 48px; }
header { display: flex; align-items: center; gap: 10px; border-bottom: 3px solid var(--brand); padding-bottom: 12px; }
.mark { height: 40px; width: auto; }
.word { font-weight: 700; font-size: 1.25rem; background: linear-gradient(90deg, #f89f1f, #b02d91, #5a2d8d, #1f8a87);
  -webkit-background-clip: text; background-clip: text; color: transparent; }
h1 { font-size: 1.6rem; margin: 20px 0 8px; }
h2 { font-size: 1.2rem; }
.lead { font-size: 1.05rem; }
form { display: grid; gap: 14px; margin: 20px 0; }
label { display: grid; gap: 6px; font-weight: 600; }
label.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; }
input[type=email], input[name=domain], input[name=rid] { font: inherit; padding: 10px 12px; border: 1px solid var(--line);
  border-radius: 8px; background: var(--card); color: var(--ink); min-height: 44px; }
input[type=checkbox] { width: 20px; height: 20px; margin-top: 3px; }
button { font: inherit; font-weight: 600; min-height: 44px; padding: 10px 18px; border: 0; border-radius: 8px;
  background: var(--brand); color: #fff; cursor: pointer; justify-self: start; }
button.secondary { background: transparent; color: var(--ink); border: 1px solid var(--line); }
button:disabled { opacity: .6; cursor: progress; }
.row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 16px; }
.preview { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; }
#msg { min-height: 1.5em; font-weight: 600; }
.small, footer { color: var(--muted); font-size: .85rem; }
footer { margin-top: 36px; border-top: 1px solid var(--line); padding-top: 10px; }
footer a { color: inherit; }

/* report check page (ADR-0002) */
#result p { margin: .35rem 0; }
#result .ok { color: var(--teal); font-weight: 600; }
#result .bad { color: var(--bad, #B42318); font-weight: 600; }
#result a { display: inline-block; margin: .1rem 0 .4rem; }
input[type=file] { padding: 8px; }