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

:root {
  --bg:          #080d18;
  --surface:     #0e1829;
  --surface2:    #152032;
  --border:      #1e3050;
  --border-hi:   #2c4878;
  --text:        #dce8ff;
  --muted:       #4e6d96;

  --up:          #00e5a0;
  --up-bg:       rgba(0, 229, 160, 0.1);
  --up-border:   rgba(0, 229, 160, 0.25);

  --down:        #ff3f64;
  --down-bg:     rgba(255, 63, 100, 0.1);
  --down-border: rgba(255, 63, 100, 0.25);

  --warn:        #ffbb00;
  --warn-bg:     rgba(255, 187, 0, 0.1);
  --warn-border: rgba(255, 187, 0, 0.25);

  --accent:      #7b6ef6;
  --accent-glow: rgba(123, 110, 246, 0.4);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 14px;
  min-height: 100vh;
}

/* ── Header ──────────────────────────────────── */
header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(8, 13, 24, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text);
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--muted);
  flex-shrink: 0;
  transition: background 0.3s, box-shadow 0.3s;
}
.brand-dot.all-up    { background: var(--up);   box-shadow: 0 0 8px var(--up); }
.brand-dot.some-down { background: var(--down); box-shadow: 0 0 8px var(--down); }

.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.countdown-wrap {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

.refresh-btn {
  -webkit-appearance: none;
  appearance: none;
  background: var(--surface2);
  border: 1px solid var(--border-hi);
  color: var(--text);
  padding: 6px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-family: inherit;
  white-space: nowrap;
  transition: background 0.2s, border-color 0.2s;
}
.refresh-btn:hover { background: var(--border); border-color: var(--accent); }

/* ── Tab nav ─────────────────────────────────── */
.tab-nav {
  display: flex;
  padding: 0 24px;
  gap: 4px;
  border-top: 1px solid var(--border);
}

.tab {
  -webkit-appearance: none;
  appearance: none;
  position: relative;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: 13px;
  padding: 12px 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: color 0.2s;
  outline: none;
  white-space: nowrap;
  margin-bottom: -1px;
}
.tab:hover { color: var(--text); }
.tab.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.tab-title { font-weight: 600; }

.tab-info {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--muted);
  transition: all 0.25s;
}
.tab-info.up   { background: var(--up-bg);   color: var(--up);   border-color: var(--up-border); }
.tab-info.down { background: var(--down-bg); color: var(--down); border-color: var(--down-border); }
.tab-info.warn { background: var(--warn-bg); color: var(--warn); border-color: var(--warn-border); }

/* ── Tab panes ───────────────────────────────── */
main {
  max-width: 1440px;
  margin: 0 auto;
  padding: 28px 32px;
}

.tab-pane         { display: none; }
.tab-pane.active  { display: block; }

/* ── Services grid ───────────────────────────── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 14px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  transition: transform 0.15s, border-color 0.2s;
}
.card:hover { transform: translateY(-2px); border-color: var(--border-hi); }
.card.status-up   { border-top-color: var(--up); }
.card.status-down {
  border-top-color: var(--down);
  background: linear-gradient(180deg, rgba(255,63,100,0.06) 0%, var(--surface) 60px);
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 16px;
}

.service-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  word-break: break-word;
  line-height: 1.3;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.6px;
  white-space: nowrap;
  flex-shrink: 0;
}
.status-badge.up      { background: var(--up-bg);   color: var(--up);      border: 1px solid var(--up-border); }
.status-badge.down    { background: var(--down-bg); color: var(--down);    border: 1px solid var(--down-border); }
.status-badge.unknown { background: var(--surface2); color: var(--muted);  border: 1px solid var(--border); }

.status-badge::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
}
.status-badge.up::before { animation: pulse 2s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

.card-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 14px;
}

.stat-item { display: flex; flex-direction: column; gap: 3px; }

.stat-label {
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.stat-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}
.latency-good   { color: var(--up); }
.latency-medium { color: var(--warn); }
.latency-bad    { color: var(--down); }
.muted-val      { font-size: 13px; color: var(--muted); }
.failure-val    { font-size: 13px; color: var(--down); }

.history-bar {
  display: flex;
  gap: 3px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.history-dot {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  flex-shrink: 0;
}
.history-dot.up      { background: var(--up); }
.history-dot.down    { background: var(--down); }
.history-dot.unknown { background: var(--border); }

.no-data { font-size: 11px; color: var(--muted); }

.card-footer {
  font-size: 11px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  padding-top: 10px;
}

/* ── Plants tab ──────────────────────────────── */
.plants-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.plant-divider { display: none; }

.plant-col {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: border-color 0.2s;
}
.plant-col:hover { border-color: var(--border-hi); }

.plant-col-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.plant-col-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.plant-col-sub {
  font-size: 11px;
  color: var(--muted);
}

.plant-badge {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.4px;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  white-space: nowrap;
  flex-shrink: 0;
}
.plant-badge.ok       { background: var(--up-bg);   color: var(--up);   border-color: var(--up-border); }
.plant-badge.abnormal { background: var(--down-bg); color: var(--down); border-color: var(--down-border); }
.plant-badge.error    { background: var(--down-bg); color: var(--down); border-color: var(--down-border); }
.plant-badge.unknown  { background: var(--surface2); color: var(--muted); }

.plant-big-stat {
  display: flex;
  align-items: center;
  gap: 16px;
}

.plant-big-count {
  font-size: 72px;
  font-weight: 800;
  line-height: 1;
  transition: color 0.3s;
  letter-spacing: -2px;
}
.plant-big-count.is-normal   { color: var(--up); }
.plant-big-count.is-abnormal { color: var(--down); }

.plant-big-denom {
  font-size: 18px;
  color: var(--muted);
  font-weight: 600;
}

.plant-big-label {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

.plant-meta {
  font-size: 12px;
  color: var(--muted);
  margin-top: -8px;
}

.plant-list-full { flex: 1; }

.plants-all-ok {
  font-size: 13px;
  color: var(--up);
  padding: 12px 0;
}

.plant-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.plant-table thead tr { background: var(--surface2); }

.plant-table th {
  padding: 10px 14px;
  text-align: left;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}

.plant-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}
.plant-table tbody tr:hover { background: var(--surface2); }

.plant-table td { padding: 10px 14px; vertical-align: middle; }

.plant-td-id     { font-weight: 600; color: var(--text); }
.plant-td-prov   { color: var(--muted); }
.plant-td-energy { color: var(--muted); white-space: nowrap; }
.plant-td-reason { color: var(--down); font-size: 11px; }

@media (max-width: 720px) {
  .plants-layout { grid-template-columns: 1fr; }
  .plant-divider { height: 1px; margin: 32px 0; width: 100%; }
}

/* ── Server tab ──────────────────────────────── */
.server-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}

.smc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.2s;
}
.smc:hover { border-color: var(--border-hi); }

.smc-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
}

.smc-value {
  font-size: 48px;
  font-weight: 800;
  line-height: 1;
  color: var(--text);
  letter-spacing: -1px;
}

.smc-load-val {
  font-size: 36px;
  font-weight: 800;
  line-height: 1;
  color: var(--text);
  letter-spacing: -1px;
}

.smc-bar-wrap {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.smc-bar {
  height: 100%;
  border-radius: 3px;
  width: 0%;
  background: var(--up);
  transition: width 0.6s ease, background 0.3s;
}
.smc-bar.warn   { background: var(--warn); }
.smc-bar.danger { background: var(--down); }

.smc-detail { font-size: 12px; color: var(--muted); }

.server-uptime-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.uptime-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
}

.uptime-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--up);
  letter-spacing: -0.5px;
}

@media (max-width: 900px) { .server-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .server-grid { grid-template-columns: 1fr; } }

/* ── Utilities ───────────────────────────────── */
.error-banner {
  background: var(--down-bg);
  border: 1px solid var(--down-border);
  color: var(--down);
  padding: 12px 16px;
  border-radius: 8px;
  margin-top: 16px;
  font-size: 13px;
}

.hidden { display: none; }

footer {
  text-align: center;
  padding: 20px;
  font-size: 11px;
  color: var(--muted);
  border-top: 1px solid var(--border);
}