:root {
  --bg: #0d1117;
  --panel: #161b22;
  --border: #30363d;
  --text: #c9d1d9;
  --muted: #8b949e;
  --accent: #58a6ff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

header h1 { font-size: 1.2rem; color: var(--accent); }

.header-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--muted);
}

.header-meta strong { color: var(--text); }

#status { font-weight: 600; }

.logout-btn {
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 12px;
  font-size: 0.8rem;
}

.logout-btn:hover { color: var(--text); border-color: var(--accent); }

.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 360px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
}

.auth-logo {
  width: 56px;
  height: 56px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #1f6feb);
  color: #fff;
  font-size: 2rem;
  line-height: 56px;
}

.auth-card h1 { font-size: 1.3rem; color: var(--text); }

.auth-sub { color: var(--muted); font-size: 0.9rem; margin: 4px 0 20px; }

.auth-card form { text-align: left; }

.auth-card label { display: block; margin: 14px 0 6px; font-size: 0.85rem; color: var(--muted); }

.auth-card input {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.95rem;
}

.auth-card input:focus { outline: none; border-color: var(--accent); }

.auth-card button {
  width: 100%;
  margin-top: 22px;
  padding: 11px;
  background: linear-gradient(135deg, var(--accent), #1f6feb);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

.auth-card button:hover { filter: brightness(1.1); }

.auth-error {
  background: rgba(248, 81, 73, 0.12);
  color: #f85149;
  border: 1px solid rgba(248, 81, 73, 0.4);
  border-radius: 8px;
  padding: 10px;
  margin-bottom: 8px;
  font-size: 0.85rem;
}

main { padding: 20px 24px 40px; max-width: 1400px; margin: 0 auto; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
}

.card-title { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; }

.card-value { font-size: 1.8rem; font-weight: 700; margin: 6px 0; }

.card-sub { font-size: 0.8rem; color: var(--muted); }

.per-core { margin-bottom: 24px; }

.per-core h2, .table-box h2 {
  font-size: 0.95rem;
  color: var(--muted);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.core-bars {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.core-bar {
  width: 52px;
  height: 120px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.core-bar-fill {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, var(--accent), #1f6feb);
  border-radius: 6px 6px 0 0;
}

.core-bar span {
  font-size: 0.65rem;
  color: var(--muted);
  z-index: 1;
  background: rgba(13, 17, 23, 0.7);
  padding: 1px 3px;
  border-radius: 3px;
}

.core-bar-info {
  position: absolute;
  top: 4px;
  font-size: 0.6rem;
  background: rgba(13, 17, 23, 0.8);
  padding: 0 3px;
  border-radius: 3px;
}

.charts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.chart-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
}

.chart-box canvas { max-height: 220px; }

.tables {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.table-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  overflow-x: auto;
}

table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }

th, td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

th { color: var(--muted); font-weight: 500; }

.proc-name { color: var(--accent); font-weight: 600; }

.progress {
  width: 140px;
  height: 8px;
  background: #21262d;
  border-radius: 4px;
  display: inline-block;
  vertical-align: middle;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #3fb950, #9ecc3a);
  border-radius: 4px;
}

.pct { font-size: 0.8rem; color: var(--muted); margin-left: 6px; }

.io-line { margin-top: 10px; font-size: 0.8rem; color: var(--muted); }

@media (max-width: 640px) {
  .charts, .tables { grid-template-columns: 1fr; }
  header { padding: 12px 16px; }
}