* { box-sizing: border-box; }
body { font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif; margin: 0; background: #f4f6f8; color: #1f2937; }
nav { background: #1e293b; color: #fff; padding: 0.75rem 1.25rem; display: flex; align-items: center; justify-content: space-between; }
nav .brand { font-weight: 600; font-size: 1.1rem; }
nav .links { display: flex; align-items: center; gap: 1rem; }
nav a { color: #cbd5e1; text-decoration: none; }
nav a:hover { color: #fff; }
nav .user { color: #94a3b8; font-size: 0.9rem; }
main { max-width: 1400px; margin: 1.5rem auto; padding: 0 1.25rem; }
h1 { margin-top: 0; }
table { width: 100%; border-collapse: collapse; background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,.06); margin-bottom: 1.5rem; }
th, td { padding: 0.6rem 0.75rem; text-align: left; border-bottom: 1px solid #e5e7eb; vertical-align: top; font-size: 0.92rem; }
th { background: #f8fafc; font-weight: 600; }
.muted { color: #6b7280; font-size: 0.85rem; }
.ok { color: #047857; }
.err { color: #b91c1c; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 0.8rem; font-weight: 600; }
.badge-ok { background: #d1fae5; color: #065f46; }
.badge-firing { background: #fee2e2; color: #991b1b; }
.badge-unknown { background: #e5e7eb; color: #374151; }
.row-firing { background: #fef2f2; }
.actions a, .actions button { margin-right: 0.5rem; }
button.link { background: none; border: none; color: #2563eb; cursor: pointer; padding: 0; font: inherit; }
button.link.danger { color: #b91c1c; }
.error { color: #b91c1c; }
.login-box { max-width: 360px; margin: 4rem auto; background: #fff; padding: 2rem; border-radius: 8px; box-shadow: 0 4px 10px rgba(0,0,0,.08); }
.login-box h1 { text-align: center; margin-top: 0; }
.form label, .login-box label { display: block; margin-bottom: 0.8rem; font-size: 0.9rem; }
.form input, .login-box input { display: block; width: 100%; padding: 0.5rem; margin-top: 4px; border: 1px solid #cbd5e1; border-radius: 4px; font: inherit; }
.form .row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.75rem; }
.form .row label { flex: 1; }
.form fieldset { border: 1px solid #cbd5e1; border-radius: 4px; padding: 0.75rem 1rem; margin: 0.75rem 0; }
.form .check { display: flex; align-items: center; gap: 6px; margin: 0.5rem 0; }
.form .check input { width: auto; margin-top: 0; }
.form .buttons { margin-top: 1rem; display: flex; gap: 1rem; align-items: center; }
.form.narrow { max-width: 420px; }
button[type=submit] { background: #2563eb; color: #fff; border: none; padding: 0.55rem 1.2rem; border-radius: 4px; cursor: pointer; font: inherit; }
button[type=submit]:hover { background: #1d4ed8; }
.ev-fail td { color: #991b1b; }
.ev-recovery td { color: #065f46; }
.ev-api_down td { color: #92400e; }
.ev-api_up td { color: #065f46; }

/* OLT admin page */
.summary { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.chip { padding: .4rem .7rem; border-radius: 6px; font-size: .82rem; background: #eef2f7; }
.chip-nubenet  { background: #d1fae5; color: #065f46; }
.chip-rfc1918  { background: #fef3c7; color: #92400e; }
.chip-external { background: #fee2e2; color: #991b1b; }
.chip-unknown  { background: #e5e7eb; color: #374151; }
.filters, .bulk { display: flex; gap: .8rem; align-items: end; flex-wrap: wrap; background: #fff; padding: .75rem 1rem; border-radius: 6px; box-shadow: 0 1px 2px rgba(0,0,0,.06); margin-bottom: 1rem; }
.filters label { display: flex; flex-direction: column; gap: 4px; font-size: .85rem; color: #475569; }
.filters select { padding: .35rem .5rem; border: 1px solid #cbd5e1; border-radius: 4px; }
.bulk { background: #fef9c3; }
.bulk button { background: #fff; border: 1px solid #cbd5e1; padding: .35rem .7rem; border-radius: 4px; cursor: pointer; font-size: .85rem; }
.bulk button:hover { background: #f1f5f9; }
.bulk button.warn { background: #fee2e2; border-color: #fca5a5; }
.badge-nubenet  { background: #d1fae5; color: #065f46; }
.badge-rfc1918  { background: #fef3c7; color: #92400e; }
.badge-external { background: #fee2e2; color: #991b1b; }
.badge-down     { background: #fee2e2; color: #991b1b; }
.badge-failing  { background: #fef3c7; color: #92400e; }
.badge-pause    { background: #e5e7eb; color: #374151; }
.row-external { background: #fff7f7; }
.row-rfc1918 { background: #fffbeb; }
.temp-alarm { color: #fff; background: #b91c1c; padding: 2px 6px; border-radius: 4px; font-weight: 600; }
.temp-warn  { color: #92400e; font-weight: 600; }