:root {
  --bg: #0f1115;
  --card: #171a21;
  --border: #262b35;
  --text: #e8e9ec;
  --muted: #8a8f9a;
  --accent: #4f8cff;
  --danger: #ef4444;
  --ok: #22c55e;
  --warning: #f59e0b;
  --input-bg: #0f1115;
  --btn-bg: #232734;
  --hover-bg: #1e222c;
}

html[data-theme="light"] {
  --bg: #f4f5f7;
  --card: #ffffff;
  --border: #e1e4e9;
  --text: #1a1d23;
  --muted: #6b7280;
  --accent: #3b6fe0;
  --danger: #dc2626;
  --ok: #16a34a;
  --warning: #d97706;
  --input-bg: #f9fafb;
  --btn-bg: #eef0f3;
  --hover-bg: #e9ebef;
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  margin: 0;
}

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--card);
  border-right: 1px solid var(--border);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
}
.sidebar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.sidebar .brand-icon { font-size: 1.4rem; }
.sidebar-user {
  color: var(--muted);
  font-size: 0.85rem;
  padding: 0 4px 10px;
}
.sidebar-nav { display: flex; flex-direction: column; gap: 4px; }
.sidebar-nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 8px;
  border-radius: 6px;
  font-size: 0.9rem;
}
.sidebar-nav a:hover { color: var(--text); background: var(--hover-bg); }
.sidebar-spacer { flex: 1; }
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1.1rem;
  padding: 8px;
  cursor: pointer;
  align-self: flex-start;
}
.theme-toggle:hover { background: var(--hover-bg); }

.banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}
.banner-warning {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid var(--warning);
  color: var(--text);
}
.banner a { color: var(--accent); font-weight: 600; }

.https-loading {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid var(--warning);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.85rem;
  color: var(--text);
  margin-bottom: 12px;
}
.spinner {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  border: 2px solid var(--border);
  border-top-color: var(--warning);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.code-block {
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 0.8rem;
  overflow-x: auto;
  color: var(--text);
}

.copy-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 12px;
}
.copy-row .code-block { flex: 1; margin-bottom: 0; }
.copy-btn {
  background: var(--btn-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  cursor: pointer;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.copy-btn:hover { background: var(--hover-bg); }

.container { flex: 1; min-width: 0; padding: 24px; max-width: 1100px; }

@media (max-width: 720px) {
  .app-shell { flex-direction: column; }
  .sidebar {
    width: auto;
    flex-direction: row;
    align-items: center;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 12px 16px;
    gap: 12px;
    flex-wrap: wrap;
  }
  .sidebar .brand { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
  .sidebar-user { display: none; }
  .sidebar-nav { flex-direction: row; flex-wrap: wrap; gap: 4px; }
  .sidebar-nav a { padding: 6px 8px; font-size: 0.85rem; }
  .sidebar-spacer { display: none; }
  .container { padding: 16px; }
}

/* General responsive layout for narrower screens (tablets/phones) */
@media (max-width: 640px) {
  .stat-row { grid-template-columns: 1fr 1fr; }
  .stat-card:last-child { grid-column: span 2; }

  .gauge-row { gap: 12px; }
  .gauge-item canvas { width: 78px; height: 78px; }
  .gauge-label { font-size: 0.7rem; }

  .header-row { flex-direction: column; align-items: stretch; gap: 10px; }
  .header-row > div { display: flex; gap: 8px; }
  .header-row > div .btn { flex: 1; text-align: center; }

  .table-controls { flex-direction: column; align-items: stretch; }
  .table-controls-right { flex-direction: column; align-items: stretch; gap: 10px; }
  .search-box input { width: 100%; }
  .pill-group { justify-content: center; }

  .table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .table { min-width: 640px; }

  .modal-box { width: 100%; padding: 18px; }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  max-width: 480px;
}
.login-card { margin: 60px auto; }

h1 { font-size: 1.3rem; margin-top: 0; }

label {
  display: block;
  margin-bottom: 14px;
  font-size: 0.9rem;
  color: var(--muted);
}
input[type=text], input[type=password], input[type=number], input[type=date] {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 8px 10px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.95rem;
}
.checkbox-label { display: flex; align-items: center; gap: 8px; }
.checkbox-label input { width: auto; }

button, .btn {
  display: inline-block;
  background: var(--btn-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }

.header-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }

.table-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  gap: 12px;
  flex-wrap: wrap;
}
.table-controls-right { display: flex; align-items: center; gap: 12px; }
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-icon {
  position: absolute;
  left: 10px;
  font-size: 0.85rem;
  opacity: 0.6;
  pointer-events: none;
}
.search-box input {
  padding: 8px 10px 8px 30px;
  width: 240px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.9rem;
}
.per-page-label {
  color: var(--muted);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
}
.per-page-label select {
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 6px 8px;
  font-size: 0.85rem;
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  margin-top: 16px;
}
.page-btn {
  background: var(--btn-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 0.85rem;
  cursor: pointer;
}
.page-btn:disabled { opacity: 0.4; cursor: default; }
.page-info { color: var(--muted); font-size: 0.85rem; }

.badge-btn {
  border: none;
  cursor: pointer;
  font: inherit;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  width: 420px;
  max-width: 90vw;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.modal-header h2 { margin: 0; font-size: 1.1rem; }
.modal-close {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  padding: 0;
}
.modal-close:hover { color: var(--text); }

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  text-align: center;
}
.stat-value { font-size: 1.8rem; font-weight: 600; }
.stat-label { color: var(--muted); font-size: 0.8rem; margin-top: 4px; }

.chart-card { max-width: none; margin-bottom: 24px; }
.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.chart-header h2 { font-size: 1rem; margin: 0; color: var(--muted); font-weight: 500; }
.chart-legend { display: flex; gap: 16px; font-size: 0.85rem; color: var(--muted); }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; }
.dot-cpu { background: var(--accent); }
.dot-mem { background: var(--ok); }

.table { width: 100%; border-collapse: collapse; }
.table-wrapper { width: 100%; }
.table th, .table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.table th { color: var(--muted); font-weight: 500; font-size: 0.85rem; }

.actions { white-space: nowrap; }
.actions a, .actions .link-btn {
  color: var(--accent);
  text-decoration: none;
  background: none;
  border: none;
  padding: 0;
  font-size: 0.85rem;
  cursor: pointer;
  margin-right: 10px;
}
.link-btn-danger { color: var(--danger); }
form.inline { display: inline; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
}
.badge-online { background: rgba(34,197,94,0.15); color: var(--ok); }
.badge-offline { background: rgba(138,143,154,0.15); color: var(--muted); }
.badge-ok { background: rgba(34,197,94,0.15); color: var(--ok); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--danger); }

.progress {
  width: 140px;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.progress-bar { height: 100%; background: var(--accent); }
.progress-bar-danger { background: var(--danger); }

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

.flash-list { margin-bottom: 16px; }
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 8px; font-size: 0.9rem; }
.flash-success { background: rgba(34,197,94,0.15); color: var(--ok); }
.flash-error { background: rgba(239,68,68,0.15); color: var(--danger); }

/* System gauges */
.system-card { max-width: none; margin-bottom: 20px; }
.chart-header-secondary { margin-top: 18px; }
.gauge-row {
  display: flex;
  justify-content: center;
  gap: 36px;
  padding: 6px 0 4px;
}
.gauge-item { text-align: center; }
.gauge-label { color: var(--muted); font-size: 0.8rem; margin-top: 4px; }

/* Status filter pills */
.pill-group { display: flex; gap: 6px; flex-wrap: wrap; }
.pill {
  border: 1px solid var(--border);
  background: #171a21;
  color: var(--muted);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.8rem;
  cursor: pointer;
  white-space: nowrap;
}
.pill-active-state {
  color: #fff;
  border-color: transparent;
}
.pill[data-status="all"].pill-active-state { background: var(--accent); }
.pill[data-status="online"].pill-active-state,
.pill[data-status="active"].pill-active-state { background: var(--ok); }
.pill[data-status="offline"].pill-active-state { background: #4b5160; }
.pill[data-status="suspended"].pill-active-state { background: var(--warning); }
.pill[data-status="expired"].pill-active-state { background: var(--danger); }

/* Toasts */
.toast-container {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--ok);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 0.9rem;
  color: var(--text);
  box-shadow: 0 4px 14px rgba(0,0,0,0.35);
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  max-width: 320px;
}
.toast-visible { opacity: 1; transform: translateX(0); }
.toast-error { border-left-color: var(--danger); }