/* Trang khách NSOLITEPRO — ưu tiên điện thoại; không inline style (CSP default-src 'self'). */
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 16px; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: #1c2430; background: #f4f6f9; line-height: 1.5; }
a { color: #1a5fb4; }
.bar { display: flex; gap: 1rem; align-items: center; padding: .7rem 1rem; background: #1c2430; }
.bar a { color: #fff; text-decoration: none; }
.bar .brand { font-weight: 700; flex: 1; }
main { max-width: 640px; margin: 0 auto; padding: 1rem; }
h1 { font-size: 1.45rem; margin: .4rem 0 1rem; }
h2 { font-size: 1.15rem; margin: 1.3rem 0 .6rem; }
.card { background: #fff; border: 1px solid #dde3ea; border-radius: 8px; padding: 1rem; margin-bottom: 1rem; }
label { display: block; margin-bottom: .6rem; font-weight: 600; }
input { display: block; width: 100%; margin-top: .3rem; font: inherit; font-size: 1.05rem; padding: .65rem .7rem; border: 1px solid #b8c2cf; border-radius: 6px; }
button, .btn { display: inline-block; font: inherit; padding: .65rem 1.1rem; border: 1px solid #1a5fb4; background: #1a5fb4; color: #fff; border-radius: 6px; cursor: pointer; text-decoration: none; min-height: 44px; }
button.danger { background: #b42318; border-color: #b42318; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: .35rem .9rem; margin: 0; }
dt { color: #5b6878; }
dd { margin: 0; }
.mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; }
.muted { color: #5b6878; }
.err { background: #fdecea; border: 1px solid #f5b7b1; color: #8a1c12; padding: .6rem .8rem; border-radius: 6px; }
.ok { background: #e7f5ea; border: 1px solid #a8d5b2; color: #1d5b2c; padding: .6rem .8rem; border-radius: 6px; }
.badge { display: inline-block; padding: .05rem .5rem; border-radius: 4px; font-size: .9rem; background: #e3e8ee; }
.badge.green { background: #e7f5ea; color: #1d5b2c; }
.badge.red { background: #fdecea; color: #8a1c12; }
.device p { margin: .25rem 0; }
.device form { margin-top: .6rem; }
.dev-title { word-break: break-word; }
@media (max-width: 420px) {
  dl { grid-template-columns: 1fr; gap: .1rem; }
  dd { margin-bottom: .45rem; }
}