@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg-main: #090d16;
  --bg-card: rgba(18, 24, 38, 0.7);
  --bg-card-hover: rgba(26, 34, 52, 0.85);
  --border-color: rgba(255, 255, 255, 0.07);
  --border-focus: rgba(99, 102, 241, 0.5);
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.25);
  --emerald: #10b981;
  --emerald-glow: rgba(16, 185, 129, 0.2);
  --cyan: #06b6d4;
  --amber: #f59e0b;
  --rose: #f43f5e;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.12) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(6, 182, 212, 0.08) 0px, transparent 50%),
    radial-gradient(at 50% 50%, rgba(15, 23, 42, 0.4) 0px, transparent 100%);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--font-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* Layout */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 270px;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--border-color);
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 10px 24px;
  border-bottom: 1px solid var(--border-color);
}

.brand-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px var(--primary-glow);
}

.brand-title {
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-size: 10px;
  text-transform: uppercase;
  background: rgba(99, 102, 241, 0.15);
  color: #818cf8;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.05em;
  border: 1px solid rgba(99, 102, 241, 0.3);
  display: inline-block;
  margin-top: 2px;
}

.nav-section {
  margin-top: 28px;
  flex: 1;
}

.nav-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-weight: 700;
  padding: 0 12px 10px;
}

.nav-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 13.5px;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.06);
}

.nav-item.active {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.16), rgba(6, 182, 212, 0.08));
  color: #fff;
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.12);
}

.nav-item svg {
  width: 18px;
  height: 18px;
  opacity: 0.8;
  transition: transform 0.2s;
}

.nav-item.active svg {
  opacity: 1;
  color: #818cf8;
}

.nav-item:hover svg {
  transform: scale(1.1);
}

.nav-footer {
  border-top: 1px solid var(--border-color);
  padding-top: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 34px;
  height: 34px;
  background: #1e293b;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: #cbd5e1;
}

.user-meta {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-size: 13px;
  font-weight: 700;
  color: #f1f5f9;
}

.user-role {
  font-size: 11px;
  color: var(--text-dim);
}

.btn-logout {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.btn-logout:hover {
  color: var(--rose);
  background: rgba(244, 63, 94, 0.1);
}

/* Main Content Area */
.main-wrapper {
  flex: 1;
  margin-left: 270px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
.topbar {
  height: 72px;
  background: rgba(9, 13, 22, 0.7);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  position: sticky;
  top: 0;
  z-index: 90;
}

.topbar-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid transparent;
}

.status-pill.online {
  background: rgba(16, 185, 129, 0.12);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.25);
}

.status-pill.offline {
  background: rgba(244, 63, 94, 0.12);
  color: #fb7185;
  border-color: rgba(244, 63, 94, 0.25);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

/* Content Container */
.content-area {
  padding: 32px;
  flex: 1;
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
}

/* Tab Panels */
.tab-panel {
  display: none;
  animation: fadeIn 0.3s ease forwards;
}

.tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Metric Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.stat-card:hover {
  transform: translateY(-2px);
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--card-accent, var(--primary)), transparent);
  opacity: 0.6;
}

.stat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stat-title {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-icon-wrap {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  color: var(--card-accent, #818cf8);
}

.stat-value {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #fff;
}

.stat-sub {
  font-size: 12px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Glass Panels */
.panel {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 26px;
  margin-bottom: 28px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.panel-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.panel-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: #fff;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #4f46e5, #4338ca);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
}

.btn-success {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff;
  box-shadow: 0 4px 14px var(--emerald-glow);
}

.btn-danger {
  background: rgba(244, 63, 94, 0.12);
  color: #fb7185;
  border-color: rgba(244, 63, 94, 0.3);
}

.btn-danger:hover {
  background: rgba(244, 63, 94, 0.2);
  color: #fff;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: var(--radius-sm);
}

/* Forms & Inputs */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form-label {
  font-size: 12.5px;
  font-weight: 600;
  color: #cbd5e1;
}

.form-input, .form-select, .form-textarea {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 11px 14px;
  color: #fff;
  font-family: inherit;
  font-size: 13.5px;
  transition: all 0.2s ease;
  outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: #6366f1;
  box-shadow: 0 0 0 3px var(--primary-glow);
  background: rgba(15, 23, 42, 0.95);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

/* Tables */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

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

.data-table th {
  background: rgba(15, 23, 42, 0.8);
  padding: 13px 18px;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  color: #e2e8f0;
}

.data-table tbody tr {
  transition: background 0.15s ease;
}

.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.025);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-success {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-muted {
  background: rgba(148, 163, 184, 0.1);
  color: #94a3b8;
  border: 1px solid rgba(148, 163, 184, 0.2);
}

/* Code Snippet Box */
.code-box {
  background: #060911;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: 14px;
}

.code-header {
  background: #0f172a;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
}

.code-tabs {
  display: flex;
  gap: 8px;
}

.code-tab {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-weight: 600;
  font-size: 12px;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
}

.code-tab.active {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.code-pre {
  padding: 18px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: #e2e8f0;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.modal-backdrop.active {
  display: flex;
}

.modal-dialog {
  background: #0f172a;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 560px;
  padding: 28px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  animation: modalIn 0.25s ease forwards;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: #1e293b;
  border: 1px solid var(--border-color);
  color: #fff;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
  font-size: 13.5px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn 0.2s ease forwards;
}

@keyframes slideIn {
  from { transform: translateX(50px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}