:root { color-scheme: light; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #24272c; background: #f6f7f8; font-size: 15px; letter-spacing: 0; }
* { box-sizing: border-box; }
body { margin: 0; }
[hidden] { display: none !important; }
header { background: #fff; border-bottom: 1px solid #dde1e5; }
.header-inner { max-width: 1280px; margin: auto; padding: 24px 32px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { font-size: 26px; font-weight: 720; color: #18201e; text-decoration: none; line-height: 1.2; }
.brand span { display: block; font-size: 12px; font-weight: 450; margin-top: 6px; color: #67716e; }
main { max-width: 1280px; margin: auto; padding: 24px 32px 64px; }
h1 { font-size: 25px; line-height: 1.3; font-weight: 650; margin: 0; }
h2 { font-size: 19px; font-weight: 650; margin: 0 0 22px; }
p { line-height: 1.55; }
button, input, select { font: inherit; border-radius: 5px; min-height: 42px; }
button { cursor: pointer; border: 1px solid #cbd2d8; background: #fff; color: #263230; padding: 10px 16px; font-weight: 550; }
button:hover { background: #edf2f0; border-color: #7f9991; }
button:disabled { opacity: .55; cursor: wait; }
button.primary { background: #13755b; border-color: #13755b; color: white; }
button.primary:hover { background: #0d604a; }
button.danger { color: #a53746; background: transparent; border-color: #e8c7cb; min-height: 34px; padding: 6px 12px; font-size: 13px; }
button:focus-visible, input:focus-visible, select:focus-visible, a:focus-visible { outline: 3px solid #599adb; outline-offset: 3px; }
input, select { width: 100%; border: 1px solid #b9c3c7; background: #fff; padding: 10px 12px; color: #222; }
label { display: block; margin: 18px 0 7px; font-size: 13px; font-weight: 650; }
form button[type=submit] { margin-top: 24px; width: 100%; }
.login { max-width: 390px; margin: 56px auto; }
.login h1 { margin-bottom: 30px; }
#notice { margin: 0 0 24px; padding: 12px 16px; border-left: 3px solid #b4394b; background: #fff0f2; color: #762332; overflow-wrap: anywhere; }
#notice.success { border-color: #158163; background: #e5f3ec; color: #17533f; }
nav { display: flex; gap: 28px; border-bottom: 1px solid #cdd4d9; margin-bottom: 32px; }
nav button { background: none; border: 0; border-radius: 0; padding: 12px 0 16px; color: #68716f; position: relative; }
nav button[aria-selected=true] { color: #136c54; border-bottom: 3px solid #168364; }
nav button:hover { background: none; }
nav span { margin-left: 8px; font-variant-numeric: tabular-nums; }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 26px; }
.section-heading p { margin: 8px 0 0; font-size: 12px; color: #68716f; }
.table-wrap { overflow-x: auto; border-top: 1px solid #d3dadf; }
table { width: 100%; border-collapse: collapse; background: #fff; text-align: left; }
th { font-size: 11px; font-weight: 650; color: #63706c; background: #f1f4f3; padding: 13px 16px; white-space: nowrap; }
td { vertical-align: top; padding: 20px 16px; font-size: 13px; border-bottom: 1px solid #e2e7e5; line-height: 1.6; }
td:first-child { min-width: 155px; max-width: 280px; overflow-wrap: anywhere; }
td strong { display: block; font-size: 14px; }
.device-id { display: block; color: #7d8784; font-family: ui-monospace, monospace; font-size: 10px; margin-top: 7px; }
.muted, .subline { color: #74807b; font-size: 12px; }
.subline { display: block; margin-top: 4px; }
.badge { display: inline-block; padding: 2px 7px; border-radius: 3px; font-size: 11px; font-weight: 600; white-space: nowrap; background: #edf0f2; color: #5d676d; }
.badge.good { color: #116445; background: #e2f2e9; }
.badge.warn { color: #826315; background: #faf0cc; }
.badge.bad { color: #982c41; background: #fbe7ec; }
.channel-line { margin-bottom: 9px; white-space: nowrap; }
.channel-line:last-child { margin-bottom: 0; }
.channel-label { display: inline-block; min-width: 72px; font-weight: 600; }
.empty { text-align: center; padding: 50px 20px; color: #697771; border-bottom: 1px solid #d5dcd9; margin: 0; }
.codes-layout { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 40px; }
.issue { border-right: 1px solid #d9dfdc; padding-right: 28px; }
.code-history { min-width: 0; }
dialog { border: 1px solid #c8d4cd; border-radius: 8px; padding: 30px; width: min(520px, calc(100% - 32px)); background: #fff; color: inherit; }
dialog::backdrop { background: #142c2370; }
output { display: block; font: 18px/1.6 ui-monospace, monospace; overflow-wrap: anywhere; background: #eef4f0; border: 1px solid #b6d3c3; padding: 16px; border-radius: 4px; user-select: all; }
.dialog-actions { display: flex; gap: 12px; margin-top: 24px; }
@media (max-width: 720px) { main { padding: 20px 16px 40px; } .header-inner { padding: 20px 16px; } .brand { font-size: 24px; } h1 { font-size: 23px; } nav { gap: 20px; } .codes-layout { grid-template-columns: minmax(0, 1fr); gap: 32px; } .issue { border-right: 0; padding-right: 0; } .login { margin: 34px auto; } th, td { padding: 12px; } .section-heading { gap: 12px; } }