:root {
  --bg: #0b0f17;
  --panel: #121826;
  --panel2: #1a2233;
  --border: #243049;
  --text: #e6edf7;
  --muted: #8a98b3;
  --accent: #4f8cff;
  --green: #2ecc71;
  --amber: #f5a623;
  --red: #ff5c5c;
  --purple: #a06bff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: radial-gradient(1200px 600px at 70% -10%, #16203a 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(11, 15, 23, 0.7);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand .logo {
  width: 36px; height: 36px; 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; letter-spacing: .3px; }
.brand small { color: var(--muted); font-size: 12px; }

.wrap { max-width: 1200px; margin: 0 auto; padding: 24px; }

/* ---------- Connect form ---------- */
.connect-card {
  max-width: 460px; margin: 8vh auto;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 16px; padding: 28px;
  box-shadow: 0 20px 60px rgba(0,0,0,.4);
}
.connect-card h2 { margin: 0 0 4px; font-size: 22px; }
.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;
  transition: transform .05s ease, opacity .2s;
}
button.btn:hover { opacity: .92; }
button.btn:active { transform: translateY(1px); }
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;
}

/* ---------- Dashboard ---------- */
.hidden { display: none !important; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px; margin-bottom: 20px;
}
.server-id { display: flex; flex-direction: column; }
.server-id .name { font-size: 20px; font-weight: 700; }
.server-id .meta { color: var(--muted); font-size: 13px; }
.actions { display: flex; gap: 10px; }
.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 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 16px; position: relative;
}
.card.span2 { grid-column: span 2; }
.card.span4 { grid-column: span 4; }
.card h3 { margin: 0 0 4px; font-size: 13px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; }
.stat { font-size: 30px; font-weight: 800; line-height: 1.1; }
.stat .unit { font-size: 14px; color: var(--muted); font-weight: 600; }
.substat { color: var(--muted); font-size: 12px; margin-top: 4px; }

.chart-box { position: relative; height: 180px; margin-top: 10px; }
.chart-box.tall { height: 240px; }

/* progress bars */
.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 ease; }
.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(70px, 1fr)); gap: 8px; margin-top: 10px; }
.core { background: var(--panel2); border-radius: 8px; padding: 8px; text-align: center; }
.core .lbl { font-size: 10px; color: var(--muted); }
.core .val { font-size: 14px; font-weight: 700; }

table.t { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 8px; }
table.t th { text-align: left; color: var(--muted); font-weight: 600; padding: 6px 8px; border-bottom: 1px solid var(--border); font-size: 11px; text-transform: uppercase; }
table.t td { padding: 7px 8px; border-bottom: 1px solid rgba(36,48,73,.5); }
table.t tr:last-child td { border-bottom: none; }
.mini-bar { height: 6px; width: 100%; background: var(--panel2); border-radius: 4px; overflow: hidden; }
.mini-bar > span { display: block; height: 100%; background: var(--accent); }

.disk-row { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.disk-row .mount { flex: 0 0 150px; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.disk-row .bar { flex: 1; margin: 0; }
.disk-row .pct { flex: 0 0 90px; text-align: right; font-size: 12px; color: var(--muted); }

@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .card.span4 { grid-column: span 2; }
}
@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .card.span2, .card.span4 { grid-column: span 1; }
}