:root {
  --bg-body: #0b1120;
  --bg-surface: #111827;
  --bg-card: #1e293b;
  --bg-input: #0f172a;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border-color: #334155;
  --primary: #0ea5e9;
  --primary-hover: #0284c7;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
}

html[data-theme="light"] {
  --bg-body: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-input: #f8fafc;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border-color: #cbd5e1;
  --primary: #0284c7;
  --primary-hover: #0369a1;
  --shadow: 0 4px 14px rgba(15, 23, 42, 0.08);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
}

.hidden {
  display: none !important;
}

/* Login Screen */
.login-backdrop {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: radial-gradient(circle at top right, rgba(14, 165, 233, 0.18), transparent 45%),
              radial-gradient(circle at bottom left, rgba(16, 185, 129, 0.12), transparent 45%),
              var(--bg-body);
}

.login-card {
  width: 100%;
  max-width: 480px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow);
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.brand-badge {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, #0ea5e9, #2563eb);
  color: #fff;
  font-weight: 800;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand-row h1 {
  font-size: 20px;
  font-weight: 700;
}

.subtitle {
  font-size: 13px;
  color: var(--text-muted);
}

.form-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
}

.field input[type="text"],
.field input[type="password"],
.field input[type="number"],
.field select {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-input);
  color: var(--text-main);
  font-size: 14px;
  outline: none;
}

.field input:focus,
.field select:focus {
  border-color: var(--primary);
}

.checkbox-field {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  padding-top: 22px;
  cursor: pointer;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid transparent;
  white-space: nowrap;
  flex-shrink: 0;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-secondary {
  background: var(--bg-input);
  color: var(--text-main);
  border-color: var(--border-color);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border-color);
}

.btn-ghost:hover {
  color: var(--text-main);
  border-color: var(--primary);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.btn-block {
  width: 100%;
  padding: 11px;
  font-size: 14px;
}

.quick-login-box {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px dashed var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.quick-label {
  font-size: 12px;
  color: var(--text-muted);
}

.quick-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.eco-links {
  margin-top: 16px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
}

.eco-links a {
  color: var(--primary);
  text-decoration: none;
}

/* App Shell */
.app-layout {
  display: grid;
  grid-template-columns: 270px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--bg-surface);
  border-right: 1px solid var(--border-color);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-brand strong {
  display: block;
  font-size: 15px;
}

.sidebar-brand small {
  color: var(--text-muted);
  font-size: 12px;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 18px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 10px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
}

.nav-item:hover {
  background: var(--bg-card);
  color: var(--text-main);
}

.nav-item.active {
  background: rgba(14, 165, 233, 0.16);
  color: var(--primary);
  font-weight: 600;
}

.sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
}

.ecosystem-box {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.eco-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.eco-pill {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 6px;
  background: var(--bg-input);
  color: var(--text-muted);
  text-decoration: none;
  border: 1px solid var(--border-color);
}

.eco-pill.active {
  border-color: var(--primary);
  color: var(--primary);
}

.user-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-bar strong {
  display: block;
  font-size: 13px;
}

.user-bar small {
  color: var(--text-muted);
  font-size: 11px;
}

.user-actions {
  display: flex;
  gap: 4px;
}

/* Main Content */
.main-content { padding: 20px 28px; display: flex; flex-direction: column; gap: 16px; overflow-x: auto; }
.tab-panel { display: flex; flex-direction: column; gap: 16px; }
.topbar { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--border-color); flex-wrap: wrap; }
.topbar-titles { flex: 1; min-width: 240px; }
.topbar h2 { font-size: 20px; line-height: 1.3; }
.text-muted { color: var(--text-muted); font-size: 13px; }
.topbar-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; flex-wrap: wrap; }
.toast { padding: 6px 12px; border-radius: 8px; font-size: 12px; font-weight: 500; white-space: nowrap; background: rgba(16, 185, 129, 0.16); color: var(--success); border: 1px solid var(--success); }
.toast.error { background: rgba(239, 68, 68, 0.16); color: var(--danger); border-color: var(--danger); }

/* KPI Grid & Cards */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
.kpi-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 14px 16px; }
.kpi-card .kpi-label { font-size: 12px; color: var(--text-muted); }
.kpi-card .kpi-value { font-size: 24px; font-weight: 800; line-height: 1.2; margin-top: 4px; }
.kpi-card .kpi-sub { font-size: 12px; color: var(--primary); margin-top: 2px; }

.card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 12px; padding: 18px 20px; }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.card h3 { font-size: 15px; margin-bottom: 10px; }
.card-grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 16px; }

.arch-card { padding: 14px 18px; }
.arch-summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 12px; cursor: pointer; }
.arch-summary::-webkit-details-marker { display: none; }
.arch-summary h3 { margin-bottom: 8px; }
.arch-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.arch-pill { display: inline-flex; align-items: center; gap: 4px; padding: 4px 10px; border-radius: 6px; font-size: 12px; background: var(--bg-input); border: 1px solid var(--border-color); color: var(--text-muted); }
.arch-pill strong { color: var(--primary); }
.arch-toggle-hint { font-size: 12px; font-weight: 600; color: var(--primary); white-space: nowrap; flex-shrink: 0; }
.arch-card[open] .feature-list { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--border-color); }

.form-row-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; align-items: end; }
.form-row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; align-items: end; }
.form-row-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.form-inline-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; align-items: end; }
.feature-list { list-style: none; display: flex; flex-direction: column; gap: 12px; font-size: 14px; }
.check-result-box { margin-top: 14px; padding: 12px 14px; border-radius: 8px; background: var(--bg-input); border: 1px solid var(--border-color); font-size: 13px; }

/* Data Tables & Badges */
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th, .data-table td { padding: 11px 12px; text-align: left; border-bottom: 1px solid var(--border-color); }
.data-table th { font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-muted); }
.badge { display: inline-block; padding: 3px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.badge-success { background: rgba(16, 185, 129, 0.16); color: var(--success); }
.badge-warn { background: rgba(245, 158, 11, 0.16); color: var(--warning); }
.badge-danger { background: rgba(239, 68, 68, 0.16); color: var(--danger); }
.badge-info { background: rgba(14, 165, 233, 0.16); color: var(--primary); }
.alert { padding: 10px 12px; border-radius: 8px; font-size: 13px; }
.alert-error { background: rgba(239, 68, 68, 0.16); color: var(--danger); border: 1px solid var(--danger); }

/* Neo nút tải lại chế độ watch xuống góc dưới bên phải */
#mdc-dev-reload { top: auto !important; bottom: 20px !important; right: 16px !important; }
#mdc-dev-reload .pop { top: auto !important; bottom: 38px !important; right: 0 !important; }