:root {
  --primary-color: #00e676;
  --secondary-color: #00c853;
  --text-color: #ffffff;
  --text-color-secondary: #b3b3b3;
  --border-color: #333333;
  --primary-bg: #121212;
  --secondary-bg: #1e1e1e;
  --form-bg: #252525;
  --accent-color: #f59e0b;
  --shadow-color: rgba(0, 230, 118, 0.2);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --red: #ff5252;
  --blue: #2196F3;
}

html.light-mode {
  --primary-color: #00c853;
  --secondary-color: #00a344;
  --text-color: #1e1e1e;
  --text-color-secondary: #6b7280;
  --border-color: #e5e7eb;
  --primary-bg: #ffffff;
  --secondary-bg: #f9fafb;
  --form-bg: #f3f4f6;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: var(--primary-bg);
  color: var(--text-color);
  line-height: 1.5;
}

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

.sidebar {
  width: 280px;
  background-color: var(--secondary-bg);
  border-right: 1px solid var(--border-color);
  padding: 2rem 0;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  overflow-y: auto;
}

.sidebar-header {
  padding: 0 1.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.sidebar-brand {
  display: flex;
  align-items: center;
}

.sidebar-logo {
  width: 48px;
  height: 48px;
  background-color: var(--primary-color);
  color: var(--secondary-bg);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: bold;
  margin-right: 1rem;
}

.sidebar-title {
  color: var(--primary-color);
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.sidebar-subtitle {
  color: var(--text-color-secondary);
  font-size: 0.875rem;
}

.sidebar-nav {
  list-style-type: none;
}

.nav-item {
  margin-bottom: 0.5rem;
}

.nav-link {
  display: flex;
  align-items: center;
  padding: 0.875rem 1.5rem;
  text-decoration: none;
  color: var(--text-color);
  transition: all 0.3s ease-in-out;
  border-left: 4px solid transparent;
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
  border-left-color: var(--primary-color);
  background-color: rgba(0, 230, 118, 0.1);
}

.nav-link-icon {
  margin-right: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  color: var(--primary-color);
}

.main-content {
  flex: 1;
  margin-left: 280px;
  padding: 2rem;
}

.progress-tracker {
  margin-bottom: 2rem;
  position: relative;
}

.progress-steps {
  display: flex;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

.progress-line {
  position: absolute;
  top: 16px;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--border-color);
  z-index: 0;
}

.progress-line-fill {
  position: absolute;
  top: 16px;
  left: 0;
  height: 3px;
  background-color: var(--primary-color);
  z-index: 0;
  transition: width 0.3s ease;
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.step-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--secondary-bg);
  border: 3px solid var(--border-color);
  color: var(--text-color-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 2;
}

.step-circle.active {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--secondary-bg);
}

.step-label {
  font-size: 0.8125rem;
  color: var(--text-color-secondary);
  text-align: center;
  width: 100px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.section-header h1 {
  color: var(--text-color);
  font-size: 1.75rem;
  font-weight: 600;
}

.mb-4 {
  margin-bottom: 1.5rem;
}

.text-secondary {
  color: var(--text-color-secondary);
}

/* Data grid and cards */
.data-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.data-card {
  background-color: var(--secondary-bg);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border-color);
}

.data-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.data-card-title {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-color-secondary);
}

.data-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background-color: rgba(0, 230, 118, 0.1);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.data-card-value {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.data-card-change {
  display: flex;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--text-color-secondary);
}

.data-card-change-positive {
  color: var(--primary-color);
}

.data-card-change-negative {
  color: var(--red);
}

.data-card-change-icon {
  margin-right: 0.25rem;
}

/* Card elements */
.card {
  background-color: var(--secondary-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border-color);
}

.card-header {
  padding: 1.25rem;
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.1);
}

.card-title {
  font-size: 1.25rem;
  color: var(--text-color);
  font-weight: 600;
  display: flex;
  align-items: center;
}

.card-title i {
  margin-right: 0.5rem;
  color: var(--primary-color);
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Form elements */
.form-row {
  display: flex;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
  margin-left: -0.75rem;
  margin-right: -0.75rem;
}

.form-group-col {
  flex: 1 0 0%;
  padding-left: 0.75rem;
  padding-right: 0.75rem;
  margin-bottom: 1.25rem;
}

.form-group-col-md-6 {
  flex: 0 0 50%;
  max-width: 50%;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
  color: var(--text-color);
  font-weight: 500;
}

.input-group {
  display: flex;
  align-items: stretch;
  width: 100%;
}

.input-group-prepend {
  display: flex;
}

.input-group-text {
  display: flex;
  align-items: center;
  padding: 0.5rem 0.75rem;
  background-color: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  border-right: none;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  color: var(--text-color-secondary);
}

.input-group-append {
  display: flex;
}

.form-control {
  display: block;
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-color);
  background-color: var(--form-bg);
  border: 1px solid var(--border-color);
  border-radius: 0;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.input-group .form-control:not(:first-child) {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.input-group .form-control:not(:last-child) {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.form-control:focus {
  border-color: var(--primary-color);
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(0, 230, 118, 0.25);
}

select.form-control {
  padding-right: 2rem;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='4' height='5' viewBox='0 0 4 5'%3e%3cpath fill='%23a0aec0' d='M2 0L0 2h4zm0 5L0 3h4z'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 8px 10px;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

.section-title {
  color: var(--primary-color);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.mt-4 {
  margin-top: 1.5rem;
}

.mb-3 {
  margin-bottom: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease-in-out;
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
}

.btn-primary {
  background-color: var(--primary-color);
  color: #000;
  border: none;
}

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

.btn-outline-primary {
  background-color: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
}

.btn-outline-primary:hover {
  background-color: rgba(0, 230, 118, 0.1);
}

.btn i {
  margin-right: 0.375rem;
}

.btn i:last-child {
  margin-right: 0;
  margin-left: 0.375rem;
}

/* Tooltip */
.tooltip {
  position: relative;
}

.tooltip-text {
  visibility: hidden;
  position: absolute;
  width: 200px;
  background-color: #333;
  color: #fff;
  text-align: center;
  padding: 5px;
  border-radius: 6px;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  margin-left: -100px;
  opacity: 0;
  transition: opacity 0.3s;
  font-size: 0.75rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.tooltip-text::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: #333 transparent transparent transparent;
}

.tooltip:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
}

/* Loading Bar */
.loading-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--primary-color);
  z-index: 1000;
  animation: loading 1.5s infinite;
  display: none;
}

@keyframes loading {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* Theme switcher */
.theme-switch {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--secondary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  z-index: 100;
  color: var(--primary-color);
  border: 1px solid var(--border-color);
  transition: all 0.2s ease-in-out;
}

.theme-switch:hover {
  transform: scale(1.1);
}

.theme-switch-icon {
  font-size: 1.25rem;
}

/* Page */
.page {
  display: none;
}

.page.active {
  display: block;
  animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .form-group-col-md-6 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .main-content {
    margin-left: 0;
  }
  
  .sidebar {
    width: 260px;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 1000;
  }
  
  .sidebar.active {
    transform: translateX(0);
  }
  
  .data-grid {
    grid-template-columns: 1fr;
  }
}