:root, [data-theme="dark"] {
  --bg: #0b1020;
  --bg-soft: #121a2f;
  --card: #151d33;
  --card-hover: #1b2640;
  --line: rgba(255,255,255,.08);
  --text: #eef3ff;
  --muted: #8b97b3;
  --accent: #6ea8ff;
  --accent-2: #8b7cff;
  --ok: #3dd68c;
  --warn: #f5c14a;
  --off: #8b97b3;
  --danger: #ff6b7a;
  --shadow: 0 18px 50px rgba(0,0,0,.28);
  --input: #0d1426;
  --chip: rgba(110,168,255,.12);
}

[data-theme="light"] {
  --bg: #f4f6fb;
  --bg-soft: #ffffff;
  --card: #ffffff;
  --card-hover: #f8faff;
  --line: rgba(20,28,50,.1);
  --text: #161d30;
  --muted: #667089;
  --accent: #2f6df6;
  --accent-2: #6a5cff;
  --ok: #1a9f63;
  --warn: #c48800;
  --off: #7b8499;
  --danger: #d9485f;
  --shadow: 0 14px 40px rgba(22,29,48,.08);
  --input: #f7f8fc;
  --chip: rgba(47,109,246,.1);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(110,168,255,.16), transparent 50%),
    radial-gradient(900px 400px at 100% 0%, rgba(139,124,255,.12), transparent 42%),
    var(--bg);
  color: var(--text);
  line-height: 1.5;
}
a { color: var(--accent); text-decoration: none; }
.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); }
.brand-mark {
  width: 36px; height: 36px; border-radius: 12px;
  display: grid; place-items: center; font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
}
.brand small { display: block; color: var(--muted); font-size: 12px; font-weight: 500; }
nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
nav form { margin: 0; }
nav a, .ghost {
  border: 0; background: transparent; color: var(--muted);
  padding: 8px 10px; border-radius: 10px; font: inherit; cursor: pointer;
}
nav a:hover, .ghost:hover { color: var(--text); background: var(--chip); }
main { max-width: 880px; margin: 0 auto; padding: 24px 16px 48px; }
.page-head, .hero {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 12px;
  margin-bottom: 20px;
}
.hero h1, h1 { font-size: 1.7rem; letter-spacing: -.03em; margin: 0 0 4px; }
.lede { color: var(--muted); margin: 0; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.btn, button, .split a {
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid transparent; border-radius: 12px;
  padding: 10px 14px; font: inherit; cursor: pointer;
  background: var(--bg-soft); color: var(--text);
}
.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: white; font-weight: 650; }
.secondary { border-color: var(--line); }
.danger { background: var(--danger); color: white; }
.wide { width: 100%; }
.split { display: flex; gap: 8px; flex-wrap: wrap; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 18px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}
.card:hover { background: var(--card-hover); }
.card-title { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
h2 { font-size: 1.15rem; margin: 0; letter-spacing: -.02em; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .85rem; }
.break { overflow-wrap: anywhere; }
.badge, .status {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .75rem; padding: 4px 9px; border-radius: 999px;
  background: var(--chip); color: var(--accent);
}
.status.ok, .badge.ok { color: var(--ok); background: color-mix(in srgb, var(--ok) 14%, transparent); }
.status.off, .badge.off { color: var(--off); background: var(--input); }
.status.warn { color: var(--warn); background: color-mix(in srgb, var(--warn) 14%, transparent); }
.status::before, .dot::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor;
}
.meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; margin-top: 14px; }
.meta div {
  background: var(--input); border-radius: 14px; padding: 10px 12px;
}
.meta small { display: block; color: var(--muted); font-size: 11px; }
form.form label, fieldset label.check { display: block; margin: 12px 0; color: var(--muted); font-size: .92rem; }
input, select, textarea {
  width: 100%; margin-top: 6px; padding: 11px 12px;
  border-radius: 12px; border: 1px solid var(--line);
  background: var(--input); color: var(--text); font: inherit;
}
textarea.json {
  min-height: 280px; font-family: ui-monospace, Menlo, monospace; font-size: 13px; line-height: 1.45;
}
fieldset { border: 1px solid var(--line); border-radius: 16px; margin: 14px 0; }
.check { display: flex; align-items: flex-start; gap: 10px; }
.check input { width: auto; margin: 4px 0 0; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.error { color: var(--danger); }
.success { color: var(--ok); }
.login-card { margin: 48px auto; max-width: 420px; }
#import-result .row {
  display: flex; justify-content: space-between; gap: 10px; align-items: center;
  padding: 10px 0; border-bottom: 1px solid var(--line);
}
.modal {
  position: fixed;
  inset: 0;
  background: rgba(6, 10, 20, .62);
  display: grid;
  place-items: center;
  padding: 16px;
  z-index: 40;
}
.modal[hidden] { display: none; }
.modal-card {
  width: min(720px, 100%);
  max-height: min(90vh, 860px);
  overflow: auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px;
  box-shadow: var(--shadow);
}
#toast {
  position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%);
  background: var(--card); border: 1px solid var(--line);
  padding: 10px 14px; border-radius: 12px; box-shadow: var(--shadow);
}
.empty { text-align: center; padding: 28px 10px; color: var(--muted); }
.server-row, .landing-server {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.server-row:last-child, .landing-server:last-child { border-bottom: 0; }
.traffic-hero { margin: 16px 0 8px; }
.traffic-hero strong { display: block; font-size: 2rem; letter-spacing: -.04em; }
.traffic-chart { width: 100%; height: 80px; color: var(--accent); margin-top: 8px; }
.chart-wrap { margin-top: 16px; }
.landing-body main { max-width: 520px; padding-top: 48px; }
.landing-card { text-align: center; }
.landing-kicker {
  letter-spacing: .16em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--muted);
  margin: 0 0 8px;
}
.landing-card h1 { font-size: 2rem; }
.landing-servers { text-align: left; margin: 18px 0; }
.landing-actions { justify-content: center; }
@media (max-width: 640px) {
  .grid2 { grid-template-columns: 1fr; }
  .top { flex-direction: column; align-items: stretch; }
  .page-head, .hero { flex-direction: column; }
  nav { justify-content: flex-start; }
}