:root {
    --bg: #0f1420;
    --panel: #171e2e;
    --border: #2a3450;
    --text: #e6e9f0;
    --muted: #8f9bb3;
    --accent: #4f8cff;
    --green: #34d399;
    --red: #f87171;
}
* { box-sizing: border-box; }
body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
    margin: 0;
}
.topnav {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 14px 24px;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
}
.topnav a { color: var(--text); text-decoration: none; }
.topnav a:hover { color: var(--accent); }
.topnav .brand { font-weight: 700; margin-right: 20px; }
.topnav .whoami { margin-left: auto; color: var(--muted); font-size: 0.85em; }
.topnav .logout { color: var(--muted); }
.container { max-width: 1100px; margin: 0 auto; padding: 24px; }
h1 { margin-top: 0; }
.hint { color: var(--muted); font-size: 0.9em; }
table { width: 100%; border-collapse: collapse; margin: 16px 0 32px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); font-size: 0.92em; }
th { color: var(--muted); font-weight: 600; }
a { color: var(--accent); }
.badge { padding: 2px 8px; border-radius: 10px; font-size: 0.8em; }
.badge.online { background: rgba(52,211,153,0.15); color: var(--green); }
.badge.offline { background: rgba(248,113,113,0.15); color: var(--red); }
.cards { display: flex; gap: 16px; margin-bottom: 24px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 16px 20px; min-width: 200px; }
.card-value { font-size: 1.6em; font-weight: 700; }
.card-label { color: var(--muted); font-size: 0.85em; }
form.inline-form, form.grid-form {
    background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
    padding: 16px; margin-bottom: 20px;
}
form.inline-form { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
form.grid-form { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
form.grid-form label { display: block; font-size: 0.8em; color: var(--muted); margin-bottom: 4px; }
input, select, button {
    background: #0d1220; color: var(--text); border: 1px solid var(--border);
    border-radius: 6px; padding: 8px 10px; font-size: 0.9em;
}
button { background: var(--accent); color: white; border: none; cursor: pointer; }
button.danger { background: var(--red); }
form.inline { display: inline; }
td.actions form, td.actions a { margin-right: 8px; }
.login-box { max-width: 340px; margin: 80px auto; background: var(--panel); padding: 28px; border-radius: 10px; border: 1px solid var(--border); }
.login-box form { display: flex; flex-direction: column; gap: 10px; }
.error { color: var(--red); }
.qr-block { display: flex; align-items: center; gap: 20px; margin: 16px 0; }
.conf-block { background: #0d1220; padding: 16px; border-radius: 8px; overflow-x: auto; border: 1px solid var(--border); }
.bulk-create { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; margin-bottom: 20px; }
.bulk-create h2 { margin-top: 0; font-size: 1.1em; }
.bulk-create form.grid-form { margin-top: 12px; }
.checkbox-field { display: flex; align-items: center; }
.checkbox-field label { display: flex !important; align-items: center; gap: 6px; font-size: 0.85em; color: var(--text); margin-bottom: 0 !important; }
.checkbox-field input[type="checkbox"] { width: auto; }
.cancel-link { margin-left: 12px; color: var(--muted); }
.tunnel-mode-box { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; margin: 16px 0; max-width: 720px; }
.tunnel-mode-box form { margin-top: 8px; }
.tunnel-mode-box p { margin: 6px 0; }
.full-width { grid-column: 1 / -1; }
.edit-link { font-size: 0.5em; margin-left: 12px; color: var(--accent); vertical-align: middle; }