:root {
  --bg-page: #f7f7f5;
  --bg-card: #ffffff;
  --bg-surface: #f0efec;
  --bg-input: #ffffff;
  --border: #e2e1dc;
  --border-hover: #c5c4be;
  --text-primary: #1a1a18;
  --text-secondary: #6b6a65;
  --text-tertiary: #9c9a92;
  --text-link: #185FA5;
  --accent: #1a1a18;
  --green: #0F6E56;
  --green-bg: #E1F5EE;
  --red: #A32D2D;
  --red-bg: #FCEBEB;
  --amber: #854F0B;
  --amber-bg: #FAEEDA;
  --blue: #185FA5;
  --blue-bg: #E6F1FB;
  --mono: 'SF Mono', 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --radius: 6px;
  --radius-lg: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-page: #1a1a18;
    --bg-card: #242422;
    --bg-surface: #2c2c2a;
    --bg-input: #2c2c2a;
    --border: #3d3d3a;
    --border-hover: #5f5e5a;
    --text-primary: #e8e6df;
    --text-secondary: #9c9a92;
    --text-tertiary: #6b6a65;
    --text-link: #85B7EB;
    --accent: #e8e6df;
    --green: #5DCAA5;
    --green-bg: #085041;
    --red: #F09595;
    --red-bg: #501313;
    --amber: #FAC775;
    --amber-bg: #412402;
    --blue: #85B7EB;
    --blue-bg: #042C53;
  }
}

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

body {
  font-family: var(--sans);
  background: var(--bg-page);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--text-link); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Layout */
.layout { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Header */
.header {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 0; border-bottom: 0.5px solid var(--border);
}
.header-wrap {
  position: sticky; top: 0; z-index: 50;
  background: var(--bg-page);
  margin: 0 -24px; padding: 0 24px;
}
.brand { display: flex; align-items: center; gap: 8px; }
.brand-mark { width: 6px; height: 22px; background: var(--accent); border-radius: 2px; }
.brand-name { font-size: 15px; font-weight: 600; letter-spacing: -0.3px; }
.brand-tag {
  font-size: 10px; font-family: var(--mono);
  color: var(--text-tertiary); background: var(--bg-surface);
  padding: 2px 7px; border-radius: 3px;
}
.header-spacer { flex: 1; }
.header-status {
  display: flex; align-items: center; gap: 6px;
  font-size: 11px; color: var(--green);
}
.header-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }
.header-user {
  font-size: 12px; color: var(--text-secondary);
  margin-left: 16px;
}
.header-logout {
  font-size: 12px; color: var(--text-tertiary);
  margin-left: 8px; cursor: pointer;
}
.header-logout:hover { color: var(--red); }
.header-gh {
  display: inline-flex; align-items: center;
  margin-left: 8px; color: var(--text-tertiary);
  transition: color 0.15s;
}
.header-gh:hover { color: var(--text-primary); text-decoration: none; }
.header-gh svg { width: 16px; height: 16px; }

/* Tabs */
.tabs {
  display: flex; gap: 0;
  border-bottom: 0.5px solid var(--border);
  margin-bottom: 0; overflow-x: auto;
  padding-bottom: 0;
}
.header-wrap + main { padding-top: 20px; }
.tab {
  padding: 10px 14px; font-size: 13px;
  color: var(--text-tertiary); cursor: pointer;
  border-bottom: 2px solid transparent;
  display: flex; align-items: center; gap: 6px;
  white-space: nowrap; transition: color 0.15s;
  text-decoration: none;
}
.tab:hover { color: var(--text-secondary); text-decoration: none; }
.tab.active { color: var(--text-primary); border-bottom-color: var(--accent); }
.tab svg { width: 14px; height: 14px; }
.tab-num {
  font-size: 10px; font-family: var(--mono);
  background: var(--bg-surface); padding: 1px 5px;
  border-radius: 3px; color: var(--text-secondary);
}
.tab-alert {
  font-size: 10px; font-family: var(--mono);
  background: var(--red-bg); padding: 1px 5px;
  border-radius: 3px; color: var(--red);
}

/* KPI Strip */
.kpi-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px; background: var(--border);
  border-radius: var(--radius); overflow: hidden;
  margin-bottom: 20px;
}
.kpi {
  background: var(--bg-card); padding: 14px 16px;
}
.kpi-top {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 6px;
}
.kpi-label {
  font-size: 11px; color: var(--text-tertiary);
  text-transform: uppercase; letter-spacing: 0.5px;
}
.kpi-icon svg { width: 14px; height: 14px; stroke: var(--text-tertiary); }
.kpi-val {
  font-size: 26px; font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.kpi-sub { font-size: 11px; color: var(--text-tertiary); margin-top: 2px; }

/* Section */
.section { margin-bottom: 24px; }
.sec-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px;
}
.sec-title {
  font-size: 12px; font-weight: 600; color: var(--text-secondary);
  text-transform: uppercase; letter-spacing: 0.5px;
}
.sec-link { font-size: 11px; color: var(--text-link); cursor: pointer; }

/* Cards */
.card {
  background: var(--bg-card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
}
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}
.card-title { font-size: 13px; font-weight: 600; }
.card-count {
  font-size: 11px; color: var(--text-tertiary);
  background: var(--bg-surface); padding: 2px 8px;
  border-radius: 10px;
}

/* Grid layouts */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; margin-bottom: 14px; }
@media (max-width: 768px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

/* Tables */
.tbl {
  width: 100%; border-collapse: collapse; font-size: 13px;
}
.tbl thead th {
  text-align: left; font-size: 10px; color: var(--text-tertiary);
  text-transform: uppercase; letter-spacing: 0.4px;
  padding: 0 8px 8px; font-weight: 600;
  border-bottom: 0.5px solid var(--border);
}
.tbl tbody tr { transition: background 0.1s; }
.tbl tbody tr:hover { background: var(--bg-surface); }
.tbl td {
  padding: 9px 8px;
  border-bottom: 0.5px solid var(--border);
}
.tbl tbody tr:last-child td { border-bottom: none; }

/* Pills / Badges */
.pill {
  font-size: 10px; padding: 2px 8px;
  border-radius: 4px; display: inline-block;
  font-weight: 500;
}
.p-active, .p-reg, .p-ok { background: var(--green-bg); color: var(--green); }
.p-hold, .p-info { background: var(--blue-bg); color: var(--blue); }
.p-ring, .p-warn, .p-vm { background: var(--amber-bg); color: var(--amber); }
.p-miss, .p-err, .p-off { background: var(--red-bg); color: var(--red); }
.p-gray { background: var(--bg-surface); color: var(--text-tertiary); }

/* Action buttons */
.act-btn {
  border: none; background: none; cursor: pointer;
  padding: 4px; border-radius: 4px;
  display: inline-flex; align-items: center; justify-content: center;
}
.act-btn:hover { background: var(--bg-surface); }
.act-btn svg { width: 14px; height: 14px; stroke: var(--text-secondary); fill: none; }

/* Mono text */
.mono { font-family: var(--mono); font-size: 12px; }
.muted { color: var(--text-secondary); }

/* Mini cards (bottom grid) */
.mini-card {
  border: 0.5px solid var(--border);
  border-radius: var(--radius); padding: 12px 14px;
}
.mc-title {
  font-size: 11px; font-weight: 600; color: var(--text-secondary);
  text-transform: uppercase; letter-spacing: 0.4px; margin-bottom: 8px;
}
.mc-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 5px 0; font-size: 12px;
}
.mc-row + .mc-row { border-top: 0.5px solid var(--border); }
.mc-name { font-weight: 500; }
.mc-val { color: var(--text-tertiary); font-size: 11px; }

/* Forms */
.form-group { margin-bottom: 14px; }
.form-label {
  display: block; font-size: 12px; font-weight: 500;
  color: var(--text-secondary); margin-bottom: 4px;
}
.form-input, .form-select {
  width: 100%; padding: 8px 12px; font-size: 13px;
  border: 0.5px solid var(--border); border-radius: var(--radius);
  background: var(--bg-input); color: var(--text-primary);
  font-family: var(--sans);
}
.form-input:focus, .form-select:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(26,26,24,0.08);
}
.form-input::placeholder { color: var(--text-tertiary); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; font-size: 13px; font-weight: 500;
  border: 0.5px solid var(--border); border-radius: var(--radius);
  cursor: pointer; transition: all 0.15s;
  font-family: var(--sans); background: var(--bg-card);
  color: var(--text-primary);
}
.btn:hover { background: var(--bg-surface); border-color: var(--border-hover); }
.btn-primary {
  background: var(--accent); color: var(--bg-card);
  border-color: var(--accent);
}
.btn-primary:hover { opacity: 0.9; }
.btn-danger { color: var(--red); border-color: var(--red); }
.btn-danger:hover { background: var(--red-bg); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn svg { width: 14px; height: 14px; }

/* Login page */
.login-wrap {
  min-height: 100vh; display: flex;
  align-items: center; justify-content: center;
  background: var(--bg-page);
}
.login-box {
  width: 100%; max-width: 360px;
  padding: 32px; background: var(--bg-card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-lg);
}
.login-brand {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 24px; justify-content: center;
}
.login-title {
  font-size: 14px; font-weight: 500;
  color: var(--text-secondary); margin-bottom: 20px;
  text-align: center;
}
.login-error {
  background: var(--red-bg); color: var(--red);
  padding: 8px 12px; border-radius: var(--radius);
  font-size: 12px; margin-bottom: 14px;
}
.login-btn {
  width: 100%; padding: 10px; font-size: 14px;
  margin-top: 8px;
}

/* Empty states */
.empty {
  text-align: center; padding: 32px;
  color: var(--text-tertiary); font-size: 13px;
}
.empty svg { width: 32px; height: 32px; margin-bottom: 8px; stroke: var(--text-tertiary); }

/* Dot indicators */
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot-green { background: var(--green); }
.dot-red { background: var(--red); }
.dot-gray { background: var(--text-tertiary); }
.dot-amber { background: var(--amber); }
.dot-blue { background: var(--blue); }

/* Toast notifications */
.toast {
  position: fixed; bottom: 20px; right: 20px;
  padding: 10px 16px; border-radius: var(--radius);
  font-size: 13px; z-index: 1000;
  animation: slideIn 0.3s ease;
}
.toast-success { background: var(--green-bg); color: var(--green); border: 0.5px solid var(--green); }
.toast-error { background: var(--red-bg); color: var(--red); border: 0.5px solid var(--red); }
@keyframes slideIn { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* Responsive */
@media (max-width: 600px) {
  .layout { padding: 0 12px; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  .tabs { gap: 0; }
  .tab { padding: 8px 10px; font-size: 12px; }
}