/* =========================================================================
   VPS Control Center — premium dark dashboard
   No external font/CDN: system fonts only (strict CSP, privacy).
   ========================================================================= */

:root {
  --bg: #0a0e13;
  --bg-soft: #0e141b;
  --panel: #111922;
  --panel-2: #151f2a;
  --panel-3: #1a2632;
  --border: #1d2937;
  --border-soft: #172230;
  --text: #e7eef6;
  --text-dim: #a4b4c6;
  --muted: #6f8297;
  --accent: #22d3ee;
  --accent-2: #3b82f6;
  --accent-soft: rgba(34, 211, 238, 0.12);
  --ok: #34d399;
  --ok-soft: rgba(52, 211, 153, 0.12);
  --warn: #fbbf24;
  --warn-soft: rgba(251, 191, 36, 0.12);
  --crit: #fb7185;
  --crit-soft: rgba(251, 113, 133, 0.14);
  --unknown: #64748b;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 30px rgba(0, 0, 0, 0.25);
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: radial-gradient(1200px 600px at 80% -10%, #10202e 0%, transparent 55%), var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }

button { font-family: inherit; cursor: pointer; }

/* ---------------- boot ---------------- */
.app-loading, .boot {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  min-height: 100vh;
  color: var(--muted);
}
.boot-mark {
  width: 42px; height: 42px; border-radius: 12px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------------- layout ---------------- */
.app {
  display: grid;
  grid-template-columns: 232px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: linear-gradient(180deg, var(--bg-soft), var(--bg));
  border-right: 1px solid var(--border-soft);
  padding: 22px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  padding: 4px 10px 20px;
}
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px;
  border: 2.5px solid var(--accent);
  position: relative; flex: none;
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.35);
}
.brand-mark::after {
  content: ""; position: absolute; inset: 50% auto auto 50%;
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
  transform: translate(-50%, -50%);
}
.brand-name { font-weight: 650; letter-spacing: 0.2px; font-size: 14px; }
.brand-sub { font-size: 11px; color: var(--muted); }

.nav-group-title {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--muted); padding: 14px 12px 6px;
}
.nav-item {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 12px; border-radius: 10px; color: var(--text-dim);
  font-size: 13.5px; font-weight: 500; border: 1px solid transparent;
  background: none; width: 100%; text-align: left;
  transition: background 0.15s ease, color 0.15s ease;
}
.nav-item:hover { background: var(--panel); color: var(--text); }
.nav-item.active {
  background: var(--accent-soft); color: var(--accent);
  border-color: rgba(34, 211, 238, 0.22);
}
.nav-ico { width: 17px; height: 17px; flex: none; opacity: 0.9; }
.nav-spacer { flex: 1; }
.sidebar-foot { font-size: 11px; color: var(--muted); padding: 10px 12px 0; border-top: 1px solid var(--border-soft); }
.sidebar-user { line-height: 1.5; margin-bottom: 10px; }
.sidebar-user b { color: var(--text); font-size: 12.5px; font-weight: 600; }
.logout-btn { width: 100%; display: flex; align-items: center; justify-content: center; gap: 8px; }
.logout-btn .nav-ico { width: 15px; height: 15px; }
.logout-btn:hover { border-color: var(--crit); color: var(--crit); }

.main { min-width: 0; display: flex; flex-direction: column; }

.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 26px;
  border-bottom: 1px solid var(--border-soft);
  background: rgba(10, 14, 19, 0.7);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 20;
}
.topbar h1 { margin: 0; font-size: 17px; font-weight: 620; letter-spacing: 0.2px; }
.topbar .sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.top-meta { font-size: 12px; color: var(--text-dim); font-variant-numeric: tabular-nums; }
.top-meta b { color: var(--text); font-weight: 600; }

.content { padding: 24px 26px 60px; }

/* ---------------- health pill ---------------- */
.health-pill {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 14px; border-radius: 999px; font-weight: 600; font-size: 13px;
  border: 1px solid var(--border);
  background: var(--panel);
}
.health-pill .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--unknown); box-shadow: 0 0 10px currentColor; }
.health-pill[data-level="healthy"] { color: var(--ok); border-color: rgba(52,211,153,0.35); background: var(--ok-soft); }
.health-pill[data-level="healthy"] .dot { background: var(--ok); }
.health-pill[data-level="warning"] { color: var(--warn); border-color: rgba(251,191,36,0.35); background: var(--warn-soft); }
.health-pill[data-level="warning"] .dot { background: var(--warn); }
.health-pill[data-level="critical"] { color: var(--crit); border-color: rgba(251,113,133,0.4); background: var(--crit-soft); }
.health-pill[data-level="critical"] .dot { background: var(--crit); animation: pulse 1.6s ease-in-out infinite; }
.health-pill[data-level="unknown"] { color: var(--muted); }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

/* ---------------- cards ---------------- */
.grid { display: grid; gap: 16px; }
.grid-kpi { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.stack { display: flex; flex-direction: column; gap: 16px; }

.card {
  background: linear-gradient(180deg, var(--panel), var(--bg-soft));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card-head {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px; border-bottom: 1px solid var(--border-soft);
}
.card-head h2 { margin: 0; font-size: 13.5px; font-weight: 620; letter-spacing: 0.2px; }
.card-head .muted { color: var(--muted); font-size: 12px; }
.card-head .right { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.card-body { padding: 16px 18px; }
.card-body.tight { padding: 10px 10px; }
.card-body.flush { padding: 0; }

.kpi { padding: 16px 18px; }
.kpi-label { font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); }
.kpi-value { font-size: 27px; font-weight: 660; margin-top: 6px; font-variant-numeric: tabular-nums; letter-spacing: -0.5px; }
.kpi-value .unit { font-size: 14px; color: var(--muted); font-weight: 500; margin-left: 3px; }
.kpi-sub { margin-top: 6px; font-size: 12px; color: var(--text-dim); }
.kpi[data-level="warning"] .kpi-value { color: var(--warn); }
.kpi[data-level="critical"] .kpi-value { color: var(--crit); }
.kpi[data-level="warning"] { background: linear-gradient(180deg, var(--warn-soft), transparent 70%); }
.kpi[data-level="critical"] { background: linear-gradient(180deg, var(--crit-soft), transparent 70%); }

.bar { height: 7px; border-radius: 999px; background: var(--panel-3); overflow: hidden; margin-top: 10px; }
.bar-fill { height: 100%; border-radius: 999px; background: var(--accent-2); transition: width 0.5s ease; }
.bar-fill[data-level="warning"] { background: var(--warn); }
.bar-fill[data-level="critical"] { background: var(--crit); }
.bar-fill[data-level="healthy"] { background: var(--ok); }

/* ---------------- tables / lists ---------------- */
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th {
  text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--muted); font-weight: 600; padding: 9px 14px; border-bottom: 1px solid var(--border-soft);
  position: sticky; top: 0; background: var(--panel);
}
.table td { padding: 10px 14px; border-bottom: 1px solid var(--border-soft); vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: rgba(255, 255, 255, 0.015); }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.mono { font-family: var(--mono); font-size: 12.5px; }

.row { display: flex; align-items: center; gap: 10px; }
.between { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.wrap { flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 600;
  border: 1px solid var(--border); color: var(--text-dim); background: var(--panel-2);
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.badge.ok { color: var(--ok); border-color: rgba(52,211,153,0.3); background: var(--ok-soft); }
.badge.warn { color: var(--warn); border-color: rgba(251,191,36,0.3); background: var(--warn-soft); }
.badge.crit { color: var(--crit); border-color: rgba(251,113,133,0.35); background: var(--crit-soft); }
.badge.muted { color: var(--muted); }
.badge.accent { color: var(--accent); border-color: rgba(34,211,238,0.3); background: var(--accent-soft); }

.muted { color: var(--muted); }
.dim { color: var(--text-dim); }
.small { font-size: 12px; }
.mono-num { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ---------------- charts ---------------- */
.chart-wrap { width: 100%; overflow: hidden; }
.chart-wrap svg { display: block; width: 100%; height: auto; }
.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12px; color: var(--text-dim); }
.legend .swatch { display: inline-block; width: 10px; height: 3px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }

/* ---------------- segmented control ---------------- */
.seg { display: inline-flex; background: var(--panel-2); border: 1px solid var(--border); border-radius: 9px; padding: 2px; gap: 2px; }
.seg button {
  border: none; background: none; color: var(--text-dim); font-size: 12px; font-weight: 550;
  padding: 5px 11px; border-radius: 7px;
}
.seg button.active { background: var(--accent-soft); color: var(--accent); }
.seg button:hover:not(.active) { color: var(--text); }

.btn {
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  padding: 7px 13px; border-radius: 9px; font-size: 12.5px; font-weight: 550;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent-2); border-color: var(--accent-2); color: white; }
.btn.primary:hover { background: #2f6fd6; color: white; }
.btn.ghost { background: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------------- logs ---------------- */
.log-toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.input, select.input {
  background: var(--bg-soft); border: 1px solid var(--border); color: var(--text);
  border-radius: 9px; padding: 7px 11px; font-size: 12.5px; font-family: inherit; min-width: 0;
}
.input:focus { outline: none; border-color: var(--accent); }
.log-view {
  font-family: var(--mono); font-size: 12px; line-height: 1.6;
  max-height: 62vh; overflow: auto; padding: 8px 0;
}
.log-line { display: grid; grid-template-columns: 150px 90px 1fr; gap: 12px; padding: 3px 16px; border-left: 2px solid transparent; }
.log-line:hover { background: rgba(255, 255, 255, 0.02); }
.log-line .ts { color: var(--muted); white-space: nowrap; }
.log-line .src { color: var(--accent); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.log-line .msg { color: var(--text-dim); white-space: pre-wrap; word-break: break-word; }
.log-line[data-level="warning"] { border-left-color: var(--warn); }
.log-line[data-level="warning"] .msg { color: #f3d9a0; }
.log-line[data-level="err"], .log-line[data-level="crit"], .log-line[data-level="alert"], .log-line[data-level="emerg"] { border-left-color: var(--crit); }
.log-line[data-level="err"] .msg, .log-line[data-level="crit"] .msg, .log-line[data-level="alert"] .msg, .log-line[data-level="emerg"] .msg { color: #f6c3cb; }

/* ---------------- alerts / notices ---------------- */
.alert-row { display: flex; gap: 12px; align-items: flex-start; padding: 12px 16px; border-bottom: 1px solid var(--border-soft); }
.alert-row:last-child { border-bottom: none; }
.alert-row .level-dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; flex: none; background: var(--muted); }
.alert-row[data-level="critical"] .level-dot { background: var(--crit); box-shadow: 0 0 8px var(--crit); }
.alert-row[data-level="warning"] .level-dot { background: var(--warn); }
.alert-row .msg { font-size: 13px; }
.alert-row .meta { font-size: 11.5px; color: var(--muted); margin-top: 3px; }

.notice {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 12px 14px; font-size: 12.5px; color: var(--text-dim); background: var(--panel-2);
}
.notice.warn { border-color: rgba(251,191,36,0.3); background: var(--warn-soft); color: #f0d79a; }
.notice.accent { border-color: rgba(34,211,238,0.28); background: var(--accent-soft); color: #bfeef6; }

.empty { padding: 30px; text-align: center; color: var(--muted); font-size: 13px; }

/* ---------------- login ---------------- */
.login-screen {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.login-card {
  width: 100%; max-width: 380px;
  background: linear-gradient(180deg, var(--panel), var(--bg-soft));
  border: 1px solid var(--border); border-radius: 18px;
  padding: 32px; box-shadow: var(--shadow);
}
.login-card .brand { padding: 0 0 22px; justify-content: center; }
.login-card h1 { font-size: 18px; margin: 0 0 4px; }
.login-card .lede { color: var(--muted); font-size: 13px; margin: 0 0 22px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; color: var(--text-dim); margin-bottom: 6px; }
.field input {
  width: 100%; background: var(--bg-soft); border: 1px solid var(--border); color: var(--text);
  border-radius: 10px; padding: 11px 13px; font-size: 14px; font-family: inherit;
}
.field input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.login-error { color: var(--crit); font-size: 12.5px; min-height: 18px; margin: 4px 0 10px; }

/* ---------------- misc ---------------- */
.spark { display: block; width: 100%; height: 38px; }
.pill-list { display: flex; flex-wrap: wrap; gap: 6px; }
.stat-inline { display: flex; gap: 18px; flex-wrap: wrap; }
.stat-inline .item .l { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.stat-inline .item .v { font-size: 15px; font-weight: 600; font-variant-numeric: tabular-nums; }
hr.sep { border: none; border-top: 1px solid var(--border-soft); margin: 14px 0; }
.scroll-x { overflow-x: auto; }

.cert-ok { color: var(--ok); }
.cert-warn { color: var(--warn); }
.cert-crit { color: var(--crit); }

/* ---------------- responsive ---------------- */
@media (max-width: 900px) {
  .app { grid-template-columns: 76px 1fr; }
  .brand-name, .brand-sub, .nav-item span, .nav-group-title, .sidebar-foot { display: none; }
  .nav-item { justify-content: center; padding: 11px; }
  .brand { justify-content: center; padding: 4px 0 18px; }
  .content { padding: 18px 16px 50px; }
  .topbar { padding: 14px 16px; }
}
@media (max-width: 560px) {
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: sticky; top: 0; height: auto; flex-direction: row; overflow-x: auto;
    border-right: none; border-bottom: 1px solid var(--border-soft); padding: 8px;
    z-index: 30;
  }
  .brand, .nav-group-title, .nav-spacer, .sidebar-foot { display: none; }
  .nav-item { width: auto; padding: 9px 12px; }
  .nav-item span { display: inline; }
  .log-line { grid-template-columns: 1fr; gap: 0; }
  .log-line .ts, .log-line .src { display: inline; margin-right: 8px; }
}