:root {
  --bg-color: #0d1117;
  --panel-bg: #161b22;
  --card-bg: #21262d;
  --border-color: #30363d;
  --text-main: #f0f6fc;
  --text-muted: #8b949e;
  --accent-green: #3fb950;
  --accent-green-bg: rgba(35, 134, 54, 0.2);
  --accent-blue: #58a6ff;
  --accent-blue-bg: rgba(31, 107, 235, 0.2);
  --accent-purple: #8957e5;
  --accent-red: #f85149;
  --accent-yellow: #d29922;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  padding-bottom: 40px;
}

/* Header */
.header {
  background-color: var(--panel-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background-color: #238636;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: bold;
}

.logo-title {
  font-size: 18px;
  font-weight: 700;
}

.badge-admin {
  background-color: var(--accent-green-bg);
  color: var(--accent-green);
  border: 1px solid #238636;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}

.auth-box {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-badge {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 12px;
  font-weight: 600;
  color: #c9d1d9;
}

.logout-btn:hover {
  background: rgba(239, 68, 68, 0.3);
  color: #fff;
}

/* Filter buttons */
.filter-btn {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-btn:hover {
  border-color: var(--accent-green);
  color: #fff;
}

.filter-btn.active {
  background: #238636;
  border-color: #238636;
  color: #fff;
}

.logout-btn:hover {
  background: rgba(239, 68, 68, 0.25);
  border-color: rgba(239, 68, 68, 0.5);
  color: #fca5a5;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px;
}

.page-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
}

.page-subtitle {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 24px;
}

/* Unauthenticated Login Screen */
.login-screen {
  background-color: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 48px;
  text-anchor: center;
  text-align: center;
  max-width: 480px;
  margin: 60px auto;
}

.login-screen h2 {
  font-size: 20px;
  margin-bottom: 8px;
}

.login-screen p {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 24px;
}

/* Grid Layouts */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: linear-gradient(135deg, #161b22 0%, #21262d 100%);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 16px;
}

.card-title {
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.card-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
}

.card-sub {
  color: var(--text-muted);
  font-size: 11px;
  margin-top: 6px;
}

.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 10px;
  font-weight: 700;
  margin-top: 6px;
}

.tag-green {
  background-color: var(--accent-green-bg);
  color: var(--accent-green);
}

.tag-blue {
  background-color: var(--accent-blue-bg);
  color: var(--accent-blue);
}

/* Two Columns */
.two-cols {
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.panel {
  background-color: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 20px;
}

.panel-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 2px;
}

.panel-subtitle {
  color: var(--text-muted);
  font-size: 11px;
  margin-bottom: 16px;
}

/* Tree Grid */
.tree-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.tree-box {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
}

.tree-box-title {
  color: var(--text-muted);
  font-size: 11px;
}

.tree-box-val {
  font-size: 20px;
  font-weight: 800;
  margin-top: 4px;
}

/* Progress Bars */
.progress-bar-bg {
  background-color: var(--card-bg);
  border-radius: 4px;
  height: 8px;
  width: 100%;
  overflow: hidden;
  margin-top: 6px;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 4px;
}

.bar-green {
  background-color: var(--accent-green);
}
.bar-blue {
  background-color: var(--accent-blue);
}
.bar-yellow {
  background-color: var(--accent-yellow);
}
.bar-purple {
  background-color: var(--accent-purple);
}

/* Footer */
.footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 11px;
  margin-top: 32px;
}