:root { color-scheme: dark; font: 16px system-ui, sans-serif; background: #111820; color: #e9f1f5; }
.history-table { overflow-x: auto; }
.history-table td { min-width: 140px; overflow-wrap: anywhere; vertical-align: top; }
* { box-sizing: border-box; }
body { margin: 0; }
header { background: #182532; padding: 20px max(20px, calc((100% - 1100px) / 2)); border-bottom: 1px solid #2c4050; }
header a { font-size: 22px; font-weight: 700; text-decoration: none; }
main { max-width: 1100px; margin: 28px auto; padding: 0 20px; }
section { margin-top: 24px; padding: 24px; background: #182532; border: 1px solid #2c4050; border-radius: 12px; }
.narrow { max-width: 520px; margin: 24px auto; }
a { color: #f1b85b; }
label { display: block; margin: 18px 0; }
input { display: block; width: 100%; margin-top: 7px; padding: 12px; background: #101a22; color: #e9f1f5; border: 1px solid #3a5263; border-radius: 6px; font: inherit; }
button, .button { display: inline-block; border: 0; border-radius: 6px; padding: 11px 16px; background: #f1b85b; color: #17130d; font: inherit; font-weight: 700; cursor: pointer; text-decoration: none; }
.secondary { background: #294050; color: #e9f1f5; }
.danger { background: #713b3d; color: white; }
.error { color: #ff9b9b; }
.hint { color: #9eb1bd; font-size: 13px; }
.device-code { margin: 24px 0; padding: 20px; border: 1px solid #75bfae; border-radius: 16px; font: bold 32px/1.3 monospace; letter-spacing: .15em; text-align: center; }
.device-uuid { overflow-wrap: anywhere; }
.dataset-grant { align-items: flex-start; margin: 16px 0; }
select { width: 100%; box-sizing: border-box; padding: 12px; border-radius: 10px; border: 1px solid #75bfae; background: #122e35; color: #fff; }
.device-dataset-form { width: 280px; }
.notice { padding: 14px; border: 1px solid #f1b85b; }
.inline { display: inline-block; margin: 12px 8px; }
.check input, .confirm input { display: inline-block; width: auto; margin: 0 6px 0 0; }
.confirm { display: inline-block; font-size: 13px; margin: 0 8px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; text-align: left; }
th, td { padding: 12px; border-bottom: 1px solid #2c4050; }
nav { display: flex; gap: 12px; flex-wrap: wrap; }