:root {
  --bg: #0a0e16; --panel: #111827; --panel2: #1a2233; --border: #243049;
  --text: #e6edf7; --muted: #8a98b3; --accent: #4f8cff;
  --green: #2ecc71; --amber: #f5a623; --red: #ff5c5c; --purple: #a06bff; --cyan: #36d6e7;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: radial-gradient(1200px 600px at 75% -10%, #16203a 0%, var(--bg) 55%);
  color: var(--text); min-height: 100vh;
}
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; border-bottom: 1px solid var(--border);
  background: rgba(10,14,22,.7); backdrop-filter: blur(6px); position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand .logo {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  display: grid; place-items: center; font-weight: 800; color: #fff;
}
.brand h1 { font-size: 18px; margin: 0; }
.brand small { color: var(--muted); font-size: 12px; }
.brand .pro { background: linear-gradient(135deg, var(--amber), #ff7a00); color: #1a1100; font-size: 10px; font-weight: 800; padding: 2px 7px; border-radius: 6px; margin-left: 6px; vertical-align: middle; }
.wrap { max-width: 1280px; margin: 0 auto; padding: 22px; }
.hidden { display: none !important; }

/* connect */
.connect-card { max-width: 460px; margin: 7vh auto; background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 28px; box-shadow: 0 20px 60px rgba(0,0,0,.45); }
.connect-card h2 { margin: 0 0 4px; }
.connect-card p.sub { margin: 0 0 20px; color: var(--muted); font-size: 13px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.field input { width: 100%; padding: 11px 12px; border-radius: 10px; border: 1px solid var(--border); background: var(--panel2); color: var(--text); font-size: 14px; outline: none; }
.field input:focus { border-color: var(--accent); }
.row { display: flex; gap: 12px; } .row .field { flex: 1; } .row .field.port { flex: 0 0 110px; }
button.btn { width: 100%; padding: 12px; border: none; border-radius: 10px; background: linear-gradient(135deg, var(--accent), var(--purple)); color: #fff; font-weight: 700; font-size: 15px; cursor: pointer; }
button.btn:disabled { opacity: .5; cursor: not-allowed; }
.note { font-size: 11px; color: var(--muted); margin-top: 14px; line-height: 1.5; }
.error { background: rgba(255,92,92,.12); border: 1px solid rgba(255,92,92,.4); color: #ffb3b3; padding: 10px 12px; border-radius: 10px; font-size: 13px; margin-bottom: 14px; }

/* topbar */
.topbar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 18px; }
.server-id .name { font-size: 20px; font-weight: 700; }
.server-id .meta { color: var(--muted); font-size: 13px; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; }
.actions button { padding: 9px 14px; border-radius: 9px; border: 1px solid var(--border); background: var(--panel2); color: var(--text); cursor: pointer; font-size: 13px; display: inline-flex; align-items: center; gap: 7px; }
.actions button.primary { background: linear-gradient(135deg, var(--green), #1fa463); border: none; color: #fff; font-weight: 700; }
.actions button.danger { color: #ffb3b3; }
.actions button:hover { border-color: var(--accent); }
.status-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); }
.status-dot.off { background: var(--muted); box-shadow: none; }

/* grid + cards */
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 16px; }
.card.span2 { grid-column: span 2; } .card.span4 { grid-column: span 4; }
.card h3 { margin: 0 0 6px; font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; display: flex; justify-content: space-between; align-items: center; }
.stat { font-size: 28px; font-weight: 800; line-height: 1.1; }
.stat .unit { font-size: 13px; color: var(--muted); font-weight: 600; }
.substat { color: var(--muted); font-size: 12px; margin-top: 4px; }
.chart-box { position: relative; height: 150px; margin-top: 10px; }
.bar { height: 8px; background: var(--panel2); border-radius: 6px; overflow: hidden; margin-top: 8px; }
.bar > span { display: block; height: 100%; border-radius: 6px; background: var(--accent); transition: width .4s; }
.bar.green > span { background: var(--green); } .bar.amber > span { background: var(--amber); } .bar.red > span { background: var(--red); }
.cores { display: grid; grid-template-columns: repeat(auto-fill, minmax(60px, 1fr)); gap: 7px; margin-top: 10px; }
.core { background: var(--panel2); border-radius: 8px; padding: 7px 4px; text-align: center; }
.core .lbl { font-size: 9px; color: var(--muted); } .core .val { font-size: 13px; font-weight: 700; }

/* speed test */
.speed-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 6px 0 4px; }
.speed-item { background: var(--panel2); border-radius: 10px; padding: 12px; text-align: center; }
.speed-item .v { font-size: 22px; font-weight: 800; }
.speed-item .l { font-size: 11px; color: var(--muted); margin-top: 2px; }
.speed-item.dl .v { color: var(--cyan); } .speed-item.ul .v { color: var(--purple); } .speed-item.pg .v { color: var(--amber); }
.spin { display: inline-block; width: 13px; height: 13px; border: 2px solid rgba(255,255,255,.3); border-top-color: #fff; border-radius: 50%; animation: sp .7s linear infinite; }
@keyframes sp { to { transform: rotate(360deg); } }

/* spike log */
.spike-log { max-height: 280px; overflow-y: auto; margin-top: 8px; }
.spike-empty { color: var(--muted); font-size: 13px; padding: 16px; text-align: center; }
.spike { display: flex; gap: 12px; padding: 10px; border-radius: 10px; background: var(--panel2); margin-bottom: 8px; border-left: 3px solid var(--amber); }
.spike.cpu { border-color: var(--accent); } .spike.mem { border-color: var(--green); }
.spike.net { border-color: var(--purple); } .spike.disk { border-color: var(--cyan); }
.spike .tag { font-size: 10px; font-weight: 800; text-transform: uppercase; padding: 2px 6px; border-radius: 5px; background: rgba(255,255,255,.08); height: fit-content; }
.spike .body { flex: 1; font-size: 13px; }
.spike .time { color: var(--muted); font-size: 11px; }
.spike .cause { margin-top: 3px; }
.spike .cause b { color: var(--amber); }

/* process table */
.proc-toolbar { display: flex; gap: 10px; align-items: center; margin: 4px 0 8px; flex-wrap: wrap; }
.proc-toolbar input { flex: 1; min-width: 160px; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border); background: var(--panel2); color: var(--text); font-size: 13px; outline: none; }
.proc-toolbar .count { color: var(--muted); font-size: 12px; }
table.t { width: 100%; border-collapse: collapse; font-size: 13px; }
table.t th { text-align: left; color: var(--muted); font-weight: 600; padding: 7px 8px; border-bottom: 1px solid var(--border); font-size: 11px; text-transform: uppercase; cursor: pointer; user-select: none; white-space: nowrap; }
table.t th:hover { color: var(--text); }
table.t th .arrow { font-size: 9px; opacity: .7; }
table.t td { padding: 7px 8px; border-bottom: 1px solid rgba(36,48,73,.5); }
table.t td.cmd { color: var(--muted); font-family: ui-monospace, Consolas, monospace; font-size: 11px; max-width: 360px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
table.t tr:hover td { background: rgba(79,140,255,.06); }
.pill { font-size: 11px; padding: 1px 6px; border-radius: 5px; background: var(--panel2); }
.hot { color: var(--red); font-weight: 700; }
.mini-bar { height: 6px; background: var(--panel2); border-radius: 4px; overflow: hidden; min-width: 50px; }
.mini-bar > span { display: block; height: 100%; background: var(--accent); }

.disk-row { display: flex; align-items: center; gap: 12px; margin-bottom: 11px; }
.disk-row .mount { flex: 0 0 140px; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.disk-row .bar { flex: 1; margin: 0; } .disk-row .pct { flex: 0 0 130px; text-align: right; font-size: 12px; color: var(--muted); }

@media (max-width: 980px) { .grid { grid-template-columns: repeat(2, 1fr); } .card.span4 { grid-column: span 2; } .speed-grid { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } .card.span2, .card.span4 { grid-column: span 1; } }