:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-card: #21262d;
  --bg-input: #0b0e14;
  --border-color: #30363d;
  --border-focus: #58a6ff;
  --text-primary: #f0f6fc;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --accent-cyan: #20b8cd;
  --accent-blue: #58a6ff;
  --accent-green: #3fb950;
  --accent-yellow: #d29922;
  --accent-red: #f85149;
  --accent-purple: #bc8cff;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-family);
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Sidebar */
.sidebar {
  width: 250px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
}

.logo-badge {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: #000;
  font-weight: 900;
  font-size: 16px;
  padding: 6px 10px;
  border-radius: 8px;
  letter-spacing: 0.5px;
}

.brand-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.brand-sub {
  font-size: 11px;
  color: var(--text-secondary);
}

.nav-links {
  list-style: none;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.nav-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s ease;
}

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

.nav-item.active a {
  background-color: rgba(32, 184, 205, 0.15);
  color: var(--accent-cyan);
  border-left: 3px solid var(--accent-cyan);
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(63, 185, 80, 0.15);
  color: var(--accent-green);
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-green);
}

/* Main Content Area */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow-y: auto;
}

.top-bar {
  padding: 16px 28px;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.page-title {
  font-size: 20px;
  font-weight: 600;
}

.content-container {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* KPI Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.kpi-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.kpi-label {
  font-size: 13px;
  color: var(--text-secondary);
}

.kpi-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.kpi-footer {
  font-size: 11px;
  color: var(--text-muted);
}

/* General Cards & Containers */
.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  overflow: hidden;
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
}

.card-body {
  padding: 20px;
}

/* Forms & Inputs */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.form-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-control {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}

.form-control:focus {
  border-color: var(--accent-cyan);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s;
}

.btn:hover {
  opacity: 0.9;
}

.btn-primary {
  background-color: var(--accent-cyan);
  color: #000;
}

.btn-danger {
  background-color: var(--accent-red);
  color: #fff;
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

/* Tables */
.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}

th {
  background-color: var(--bg-card);
  color: var(--text-secondary);
  padding: 12px 16px;
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

tr:hover td {
  background-color: rgba(255, 255, 255, 0.02);
}

.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
}

.badge-pro {
  background-color: rgba(188, 140, 255, 0.2);
  color: var(--accent-purple);
  border: 1px solid rgba(188, 140, 255, 0.4);
}

.badge-active {
  background-color: rgba(63, 185, 80, 0.15);
  color: var(--accent-green);
}

.badge-cooldown {
  background-color: rgba(210, 153, 34, 0.15);
  color: var(--accent-yellow);
}

.badge-guest {
  background-color: rgba(88, 166, 255, 0.15);
  color: var(--accent-blue);
}

/* Code & Pre */
pre {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  overflow-x: auto;
  color: #e6edf3;
}