/* Knight Logics CRM Management System */
/* Professional Dark Theme Design */

/* Reset and Root Variables */
*, *::after, *::before {
  box-sizing: border-box;
}

:root {
  /* Color Palette - Professional Dark Theme */
  --primary-color: #1a1a1a;        /* Deep charcoal */
  --secondary-color: #2c5aa0;       /* Professional blue */
  --accent-color: #e67e22;          /* Orange accent */
  --success-color: #27ae60;         /* Success green */
  --warning-color: #f39c12;         /* Warning amber */
  --info-color: #3498db;           /* Info blue */
  --dark-color: #0d0d0d;           /* Deepest black */
  --light-color: #f8f9fa;          /* Bright white text */
  --muted-color: #ced4da;          /* Light gray text */
  
  /* Glass Effects - Dark Theme */
  --glass-bg: rgba(26, 26, 26, 0.8);
  --glass-border: rgba(248, 249, 250, 0.1);
  --glass-bg-strong: rgba(26, 26, 26, 0.9);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --glass-shadow-strong: 0 15px 35px rgba(0, 0, 0, 0.6);
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Border Radius */
  --border-radius: 0.375rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-smooth: 0.3s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* Global Styles */
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--light-color);
  background: linear-gradient(135deg, #0d0d0d 0%, #1a1a1a 25%, #1e3a5f 50%, #2c5aa0 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Loading Screen */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #0d0d0d 0%, #1a1a1a 25%, #1e3a5f 50%, #2c5aa0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.5s ease;
}

.loading-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-content {
  text-align: center;
  color: var(--light-color);
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(44, 90, 160, 0.3);
  border-top: 4px solid var(--secondary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--spacing-lg);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* App Layout */
.app-container {
  display: grid;
  grid-template-areas:
    "header header"
    "sidebar main";
  grid-template-columns: 280px 1fr;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease;
}

.app-container.loaded {
  opacity: 1;
  transform: translateY(0);
}

/* Header */
.header {
  grid-area: header;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.header-left {
  display: flex;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.logo i {
  font-size: var(--font-size-2xl);
  color: var(--secondary-color);
}

.logo h1 {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--light-color);
}

.header-center {
  flex: 1;
  max-width: 500px;
  margin: 0 var(--spacing-xl);
}

.search-container {
  position: relative;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted-color);
  font-size: var(--font-size-sm);
}

.search-input {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 2.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  color: var(--light-color);
  font-size: var(--font-size-sm);
  transition: var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.header-btn {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-sm);
  color: var(--light-color);
  cursor: pointer;
  transition: var(--transition-fast);
}

.header-btn:hover {
  background: var(--glass-bg-strong);
  border-color: var(--secondary-color);
}

.notification-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--accent-color);
  color: white;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  font-size: var(--font-size-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

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

.user-name {
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.user-role {
  font-size: var(--font-size-xs);
  color: var(--muted-color);
}

/* Sidebar */
.sidebar {
  grid-area: sidebar;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--glass-border);
  padding: var(--spacing-xl);
  overflow-y: auto;
}

.sidebar-nav {
  margin-bottom: var(--spacing-2xl);
}

.nav-menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  margin-bottom: var(--spacing-sm);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--muted-color);
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: var(--transition-fast);
  font-weight: 500;
}

.nav-link:hover {
  background: var(--glass-bg-strong);
  color: var(--light-color);
}

.nav-item.active .nav-link {
  background: var(--secondary-color);
  color: var(--light-color);
}

.nav-link i {
  font-size: var(--font-size-lg);
  width: 20px;
  text-align: center;
}

/* Sidebar Actions */
.sidebar-actions {
  margin-top: auto;
}

.action-card {
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
}

.action-card h4 {
  margin: 0 0 var(--spacing-lg) 0;
  color: var(--light-color);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.action-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: none;
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  color: var(--muted-color);
  text-decoration: none;
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: var(--transition-fast);
  margin-bottom: var(--spacing-sm);
}

.action-btn:hover {
  background: var(--glass-bg);
  color: var(--light-color);
  border-color: var(--secondary-color);
}

/* Main Content */
.main-content {
  grid-area: main;
  padding: var(--spacing-lg);
  overflow-y: auto;
  background: rgba(255, 255, 255, 0.05);
}

/* Content Sections */
.content-section {
  display: none;
}

.content-section.active {
  display: block;
  animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Section Header */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--glass-border);
}

.section-header h2 {
  margin: 0;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--light-color);
}

.section-actions {
  display: flex;
  gap: var(--spacing-md);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.btn-primary:hover {
  background: #1e3a5f;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(44, 90, 160, 0.3);
}

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

.btn-outline:hover {
  background: var(--glass-bg);
  border-color: var(--secondary-color);
  color: var(--secondary-color);
}

/* Statistics Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background: var(--glass-bg);
  backdrop-filter: blur(15px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glass-shadow-strong);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--secondary-color);
}

.stat-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.stat-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius-lg);
  background: rgba(44, 90, 160, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  color: var(--secondary-color);
}

.stat-content {
  flex: 1;
}

.stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin: 0 0 var(--spacing-xs) 0;
  color: var(--light-color);
}

/* Stat Value Color Variants */
.stat-value.positive {
  color: var(--success-color);
}

.stat-value.negative {
  color: var(--accent-color);
}

.stat-value.neutral {
  color: var(--light-color);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--muted-color);
  margin: 0 0 var(--spacing-sm) 0;
  font-weight: 500;
}

.stat-change {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.stat-change.positive {
  color: var(--success-color);
}

.stat-change.negative {
  color: var(--accent-color);
}

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-template-rows: auto auto;
  gap: var(--spacing-md);
}

.dashboard-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(15px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--glass-shadow);
}

.chart-panel {
  grid-row: span 2;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--glass-border);
}

.panel-header h3 {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--light-color);
}

.panel-link {
  color: var(--secondary-color);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: var(--transition-fast);
}

.panel-link:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

.period-selector,
.metric-selector {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--light-color);
  font-size: var(--font-size-xs);
}

.chart-container {
  height: 280px;
  position: relative;
}

/* Activities List */
.activities-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.activity-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  background: var(--glass-bg-strong);
  border-radius: var(--border-radius);
  transition: var(--transition-fast);
}

.activity-item:hover {
  background: rgba(255, 255, 255, 0.1);
}

.activity-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.activity-title {
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--light-color);
}

.activity-details {
  font-size: var(--font-size-xs);
  color: var(--muted-color);
}

.activity-time {
  font-size: var(--font-size-xs);
  color: var(--muted-color);
}

/* Performers List */
.performers-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.performer-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--glass-bg-strong);
  border-radius: var(--border-radius);
}

.performer-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--light-color);
  font-weight: bold;
}

.performer-info {
  flex: 1;
}

.performer-name {
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--light-color);
}

.performer-metric {
  font-size: var(--font-size-xs);
  color: var(--muted-color);
}

.performer-value {
  font-weight: 700;
  color: var(--secondary-color);
}

/* Contacts Grid */
.contacts-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.contacts-filters {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  backdrop-filter: blur(10px);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.filter-group label {
  color: var(--light-color);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.filter-select {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  color: var(--light-color);
  font-family: var(--font-family);
}

.contacts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.contact-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
}

.contact-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--glass-shadow-strong);
}

.contact-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.contact-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--light-color);
  font-weight: bold;
  font-size: var(--font-size-lg);
}

.contact-info h3 {
  margin: 0 0 var(--spacing-xs) 0;
  color: var(--light-color);
}

.contact-info p {
  margin: 0;
  color: var(--muted-color);
  font-size: var(--font-size-sm);
}

.contact-details {
  margin-bottom: var(--spacing-lg);
}

.contact-details p {
  margin: var(--spacing-xs) 0;
  color: var(--muted-color);
  font-size: var(--font-size-sm);
}

.contact-status {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
}

.status-lead {
  background: var(--info-color);
  color: white;
}

.status-prospect {
  background: var(--warning-color);
  color: var(--dark-color);
}

.status-customer {
  background: var(--success-color);
  color: white;
}

/* Pipeline Stages */
.pipeline-container {
  overflow-x: auto;
  padding: var(--spacing-lg) 0;
}

.pipeline-stages {
  display: flex;
  gap: var(--spacing-lg);
  min-width: max-content;
}

.pipeline-stage {
  min-width: 300px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
}

.stage-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--glass-border);
}

.stage-title {
  font-weight: 600;
  color: var(--light-color);
}

.stage-count {
  background: var(--secondary-color);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: var(--font-size-xs);
}

.deals-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.deal-card {
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  cursor: pointer;
  transition: var(--transition-fast);
}

.deal-card:hover {
  background: rgba(255, 255, 255, 0.1);
}

.deal-title {
  font-weight: 600;
  color: var(--light-color);
  margin-bottom: var(--spacing-xs);
}

.deal-value {
  color: var(--success-color);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.deal-contact {
  font-size: var(--font-size-xs);
  color: var(--muted-color);
}

/* Companies Grid */
.companies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.company-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  transition: var(--transition-smooth);
}

.company-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--glass-shadow-strong);
}

.company-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.company-logo {
  width: 50px;
  height: 50px;
  border-radius: var(--border-radius);
  background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--light-color);
  font-weight: bold;
  font-size: var(--font-size-lg);
}

.company-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.company-stat {
  text-align: center;
  padding: var(--spacing-md);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius);
}

.company-stat-value {
  display: block;
  font-weight: 700;
  color: var(--secondary-color);
}

.company-stat-label {
  font-size: var(--font-size-xs);
  color: var(--muted-color);
}

/* Activities Timeline */
.activities-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.timeline-item {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
}

.timeline-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--secondary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.timeline-content {
  flex: 1;
}

.timeline-title {
  font-weight: 600;
  color: var(--light-color);
  margin-bottom: var(--spacing-xs);
}

.timeline-description {
  color: var(--muted-color);
  margin-bottom: var(--spacing-sm);
}

.timeline-meta {
  display: flex;
  gap: var(--spacing-lg);
  font-size: var(--font-size-xs);
  color: var(--muted-color);
}

/* Reports Grid */
.reports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.report-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  backdrop-filter: blur(10px);
}

.report-card h3 {
  margin: 0 0 var(--spacing-lg) 0;
  color: var(--light-color);
  font-size: var(--font-size-lg);
}

.chart-container {
  position: relative;
  height: 200px;
  margin-bottom: var(--spacing-lg);
}

.report-summary {
  grid-column: 1 / -1;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.kpi-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--border-radius);
  border: 1px solid var(--glass-border);
}

.kpi-label {
  display: block;
  color: var(--muted-color);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-sm);
}

.kpi-value {
  display: block;
  color: var(--secondary-color);
  font-size: var(--font-size-xl);
  font-weight: bold;
}

/* Background Effects */
.background-effects {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
}

.floating-icon {
  position: absolute;
  font-size: var(--font-size-2xl);
  color: rgba(44, 90, 160, 0.1);
  animation: float 6s ease-in-out infinite;
}

.floating-icon:nth-child(1) {
  top: 20%;
  left: 10%;
  animation-delay: -1s;
}

.floating-icon:nth-child(2) {
  top: 60%;
  right: 15%;
  animation-delay: -2s;
}

.floating-icon:nth-child(3) {
  bottom: 30%;
  left: 20%;
  animation-delay: -3s;
}

.floating-icon:nth-child(4) {
  top: 40%;
  right: 30%;
  animation-delay: -4s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .app-container {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }
  
  .sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    height: 100vh;
    z-index: 1000;
    transition: left 0.3s ease;
  }
  
  .sidebar.open {
    left: 0;
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .header {
    grid-column: 1 / -1;
    justify-content: space-between;
  }
  
  .header-center {
    display: none;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  
  .contacts-filters {
    flex-direction: column;
  }
  
  .pipeline-stages {
    flex-direction: column;
  }
  
  .reports-grid {
    grid-template-columns: 1fr;
  }
  
  .kpi-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .main-content {
    padding: var(--spacing-md);
  }

  .section-header {
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: stretch;
  }

  .section-actions {
    justify-content: center;
  }

  .header {
    padding: 0 var(--spacing-md);
  }
}