:root,
html[data-theme="dark"] {
    --bg: #0a0a12;
    --card: #12121c;
    --input: #1a1a28;
    --border: #2a2a3c;
    --text: #e6e6e6;
    --muted: #8f9bb5;
    --accent: #4a9eff;
    --ok: #4ade80;
    --err: #f87171;
    --warn: #fbbf24;
    --shadow: rgba(0, 0, 0, 0.45);
    --overlay: rgba(0, 0, 0, 0.72);
}
html[data-theme="light"] {
    --bg: #f3f4f8;
    --card: #ffffff;
    --input: #ffffff;
    --border: #d5d8e4;
    --text: #1c1c28;
    --muted: #5c6578;
    --accent: #2563eb;
    --ok: #16a34a;
    --err: #dc2626;
    --warn: #d97706;
    --shadow: rgba(24, 24, 40, 0.08);
    --overlay: rgba(24, 24, 40, 0.45);
}
* { box-sizing: border-box; }
html, body {
    background: var(--bg);
    color: var(--text);
    font-family: Inter, Segoe UI, Tahoma, sans-serif;
    margin: 0;
}
a { color: var(--accent); }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--card); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #3a3a50; }
input, select, textarea, button { font-family: inherit; }
input, select, textarea {
    background: var(--input);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 12px;
    transition: border-color .2s, box-shadow .2s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.15);
}
.theme-toggle {
    width: 42px; height: 42px; border-radius: 12px;
    border: 1px solid var(--border); background: var(--card); color: var(--text);
    cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
    transition: .2s;
}
.theme-toggle:hover { border-color: var(--accent); }
.toast-container {
    position: fixed; top: 16px; left: 50%; transform: translateX(-50%);
    z-index: 9999; display: flex; flex-direction: column; gap: 10px; align-items: center;
}
.toast {
    background: var(--card); color: var(--text); padding: 12px 18px; border-radius: 12px;
    border: 1px solid var(--border); border-left: 6px solid var(--ok);
    box-shadow: 0 12px 30px var(--shadow); max-width: 90vw;
}
.toast.error { border-left-color: var(--err); }
.toast.warning { border-left-color: var(--warn); }
.card {
    background: var(--card); border: 1px solid var(--border); border-radius: 16px;
    box-shadow: 0 10px 28px var(--shadow);
}
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 9px 14px; border-radius: 10px; border: 1px solid var(--border);
    background: var(--input); color: var(--text); cursor: pointer; font-weight: 600;
    transition: .2s; text-decoration: none;
}
.btn:hover { filter: brightness(1.08); }
.btn-accent { background: var(--accent); color: #0a0a12; border-color: transparent; }
.btn-ok { background: #16351f; color: var(--ok); border-color: #1f4a2c; }
.btn-err { background: #3a1515; color: var(--err); border-color: #7f1d1d; }
.btn-warn { background: #3a2a0a; color: var(--warn); border-color: #7c5a10; }
html[data-theme="light"] .btn-ok { background: #e8f8ee; }
html[data-theme="light"] .btn-err { background: #fde8e8; }
html[data-theme="light"] .btn-warn { background: #fff4d6; }
.topbar {
    position: sticky; top: 0; z-index: 50;
    display: flex; justify-content: space-between; align-items: center; gap: 12px;
    padding: 12px 18px; background: var(--card); border-bottom: 1px solid var(--border);
}
.topbar .left, .topbar .right { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.page { padding: 20px; max-width: 1280px; margin: 0 auto; }
.table-wrap { overflow-x: auto; }
table.data {
    width: 100%; border-collapse: collapse; background: var(--card);
}
table.data th, table.data td {
    border: 1px solid var(--border); padding: 10px 12px; text-align: start;
}
table.data th { color: var(--muted); background: var(--input); font-weight: 600; }
.badge { padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.badge.online { background: #16351f; color: var(--ok); }
.badge.offline { background: #3a1515; color: var(--err); }
.badge.unknown { background: var(--input); color: var(--muted); }
.modal-overlay {
    display: none; position: fixed; inset: 0; background: var(--overlay);
    backdrop-filter: blur(6px); z-index: 1000;
}
.modal {
    display: none; position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
    background: var(--card); border: 1px solid var(--accent); border-radius: 16px;
    width: 92%; max-width: 480px; padding: 22px; z-index: 1001;
    box-shadow: 0 24px 60px var(--shadow);
}
.muted { color: var(--muted); }
.mono { font-family: "JetBrains Mono", Consolas, monospace; }
@media (max-width: 700px) {
    .page { padding: 14px; }
    .topbar { padding: 10px; }
}