:root {
  --hzy-bg: #f4f6fc;
  --hzy-primary: #0f172a;
  --hzy-brand: #1e40af;
  --hzy-brand-hover: #1d4ed8;
  --hzy-secondary: #475569;
  --hzy-accent: #0284c7;
  --hzy-success: #16a34a;
  --hzy-danger: #dc2626;
  --hzy-warning: #ea580c;
  --hzy-card-bg: #ffffff;
  --hzy-text: #0f172a;
  --hzy-border: #e2e8f0;
  --hzy-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --hzy-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.05), 0 4px 6px -4px rgb(0 0 0 / 0.05);
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif; }

body { background: var(--hzy-bg); color: var(--hzy-text); font-size: 16px; line-height: 1.6; }

/* Login Page */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: radial-gradient(circle at 10% 20%, rgba(216, 241, 230, 0.46) 0.1%, rgba(233, 226, 226, 0.28) 90.1%);
}

.login-card {
  width: 460px;
  padding: 48px;
  background: var(--hzy-card-bg);
  box-shadow: var(--hzy-shadow-lg);
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.8);
}

.login-company {
  margin: -22px 0 28px;
  text-align: center;
  color: var(--hzy-secondary);
  font-size: 14px;
  line-height: 1.5;
}

.login-card h1 {
  font-size: 26px;
  color: var(--hzy-brand);
  margin-bottom: 32px;
  text-align: center;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.form-group { margin-bottom: 24px; }
.form-group label { display: block; margin-bottom: 8px; font-size: 14px; color: var(--hzy-secondary); font-weight: 600; }
.form-group input {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--hzy-border);
  border-radius: 8px;
  font-size: 16px;
  outline: none;
  background: #f8fafc;
  transition: all 0.2s ease-in-out;
}
.form-group input:focus { border-color: var(--hzy-brand); background: #fff; box-shadow: 0 0 0 4px rgba(30, 64, 175, 0.1); }

.login-btn {
  width: 100%;
  padding: 16px;
  background: var(--hzy-brand);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.25s, transform 0.1s;
}
.login-btn:hover { background: var(--hzy-brand-hover); }
.login-btn:active { transform: scale(0.98); }

/* Workspace Layout */
.workspace-page { display: flex; flex-direction: column; height: 100vh; background: #f8fafc; }

.top-bar {
  height: 72px;
  background: var(--hzy-card-bg);
  border-bottom: 1px solid var(--hzy-border);
  display: flex;
  align-items: center;
  padding: 0 32px;
  justify-content: space-between;
  box-shadow: var(--hzy-shadow);
  z-index: 10;
}

.brand { font-size: 22px; font-weight: 700; color: var(--hzy-brand); display: flex; align-items: center; gap: 12px; letter-spacing: -0.5px; }

.main-container { display: flex; flex: 1; overflow: hidden; }

.side-nav {
  width: 260px;
  background: #ffffff;
  border-right: 1px solid var(--hzy-border);
  padding: 24px 0;
  overflow-y: auto;
}

.nav-item {
  padding: 14px 28px;
  cursor: pointer;
  color: var(--hzy-secondary);
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: all 0.2s ease;
  font-weight: 500;
}
.nav-item:hover { background: #f1f5f9; color: var(--hzy-brand); }
.nav-item.active { background: #eff6ff; color: var(--hzy-brand); font-weight: 600; border-left: 4px solid var(--hzy-brand); }

.content-area { flex: 1; padding: 32px; overflow-y: auto; background: #f4f6fc; }

.hero-section { margin-bottom: 32px; border-bottom: 2px solid var(--hzy-border); padding-bottom: 18px; }
.hero-section h2 { font-size: 28px; color: var(--hzy-primary); font-weight: 700; letter-spacing: -0.5px; }

/* Dashboard Visual Elements */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.stat-card {
  padding: 28px;
  background: var(--hzy-card-bg);
  border: 1px solid var(--hzy-border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--hzy-shadow);
  transition: all 0.25s ease;
}
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--hzy-shadow-lg); border-color: var(--hzy-brand); }

.stat-info { display: flex; flex-direction: column; gap: 6px; }
.stat-card .label { font-size: 14px; color: var(--hzy-secondary); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.stat-card .value { font-size: 32px; font-weight: 800; color: var(--hzy-brand); }

.stat-icon-box {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: #eff6ff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--hzy-brand);
  transition: all 0.25s ease;
}
.stat-card:hover .stat-icon-box { background: var(--hzy-brand); color: #fff; }

.dashboard-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 28px;
}

.panel-block {
  background: var(--hzy-card-bg);
  border: 1px solid var(--hzy-border);
  border-radius: 12px;
  padding: 28px;
  margin-bottom: 28px;
  box-shadow: var(--hzy-shadow);
}

.panel-block-title {
  font-size: 18px;
  color: var(--hzy-primary);
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--hzy-border);
  padding-bottom: 12px;
}

/* Base list tables */
.hzy-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
.hzy-table th {
  padding: 14px 18px;
  font-size: 14px;
  color: var(--hzy-secondary);
  font-weight: 700;
  border-bottom: 2px solid var(--hzy-border);
  background: #f8fafc;
}
.hzy-table td {
  padding: 16px 18px;
  font-size: 14px;
  border-bottom: 1px solid var(--hzy-border);
}
.hzy-table tr:hover { background: #f8fafc; }

.badge {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  display: inline-block;
}
.badge-success { background: #dcfce7; color: var(--hzy-success); }
.badge-warning { background: #ffedd5; color: var(--hzy-warning); }
.badge-danger { background: #fee2e2; color: var(--hzy-danger); }

/* Warning list items */
.alert-list { display: flex; flex-direction: column; gap: 16px; }
.alert-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-left: 4px solid var(--hzy-danger);
  background: #fffafb;
  border-radius: 8px;
  border: 1px solid var(--hzy-border);
  border-left-width: 4px;
  box-shadow: var(--hzy-shadow);
  transition: all 0.2s ease;
}
.alert-item:hover { transform: scale(1.01); }
.alert-item.alert-warn { border-left-color: var(--hzy-warning); background: #fffdfa; }
.alert-item.alert-info { border-left-color: var(--hzy-accent); background: #f0f9ff; }

.alert-body { display: flex; flex-direction: column; gap: 6px; }
.alert-title { font-size: 15px; font-weight: 700; color: #0f172a; }
.alert-meta { font-size: 12px; color: var(--hzy-secondary); display: flex; gap: 12px; }

/* SVG Icons definition */
.svg-icon { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }

/* Map Sandbox Styling */
.sandbox-map-container {
  position: relative;
  width: 100%;
  height: 280px;
  background: radial-gradient(circle, #f0f4f8 10%, #e2e8f0 100%);
  border-radius: 12px;
  border: 1px solid var(--hzy-border);
  overflow: hidden;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sandbox-map-grid {
  position: absolute;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(to right, rgba(0,0,0,0.03) 1px, transparent 1px),
                    linear-gradient(to bottom, rgba(0,0,0,0.03) 1px, transparent 1px);
  background-size: 20px 20px;
}

.map-node {
  position: absolute;
  width: 14px;
  height: 14px;
  background: var(--hzy-brand);
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(30, 64, 175, 0.6);
  cursor: pointer;
  transition: all 0.3s ease;
}
.map-node.active {
  background: var(--hzy-success);
  box-shadow: 0 0 16px rgba(22, 163, 74, 0.8);
  transform: scale(1.3);
}
.map-node.error {
  background: var(--hzy-danger);
  box-shadow: 0 0 16px rgba(220, 38, 38, 0.8);
  transform: scale(1.3);
}
.map-node:hover { transform: scale(1.5); z-index: 5; }

.node-pulse {
  position: absolute;
  width: 32px;
  height: 32px;
  border: 2px solid rgba(30, 64, 175, 0.4);
  border-radius: 50%;
  animation: pulse 1.8s infinite;
  pointer-events: none;
  transform: translate(-9px, -9px);
}

@keyframes pulse {
  0% { transform: scale(0.5); opacity: 1; }
  100% { transform: scale(2.2); opacity: 0; }
}