/* ===========================
   Music Analytics 2025 — Modern Dashboard
   Inspired by Shadcn & TailAdmin
   =========================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

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

:root {
  /* Modern Color System */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8fafc;
  --color-bg-tertiary: #f1f5f9;
  
  --color-text-primary: #0f172a;
  --color-text-secondary: #64748b;
  --color-text-tertiary: #94a3b8;
  
  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;
  
  --color-primary: #6366f1;
  --color-primary-hover: #4f46e5;
  --color-primary-light: #eef2ff;
  
  --color-success: #10b981;
  --color-success-light: #d1fae5;
  
  --color-warning: #f59e0b;
  --color-warning-light: #fef3c7;
  
  --color-danger: #ef4444;
  --color-danger-light: #fee2e2;
  
  --color-info: #3b82f6;
  --color-info-light: #dbeafe;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
  
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  
  /* Transitions */
  --transition-fast: 100ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-toast: 500;
}

/* Base Styles */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-border-hover);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-tertiary);
}

/* ===========================
   Layout
   =========================== */

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

/* Modern Sidebar */
.modern-sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 280px;
  background: var(--color-bg-primary);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  z-index: var(--z-fixed);
  transition: all var(--transition-base);
}

.modern-sidebar.collapsed {
  width: 80px;
}

.sidebar-header {
  padding: var(--space-6);
  flex-shrink: 0;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
  box-shadow: var(--shadow-md);
}

.logo-icon i {
  width: 24px;
  height: 24px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.modern-sidebar.collapsed .logo-text {
  display: none;
}

.logo-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text-primary);
}

.logo-subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Sidebar Menu */
.sidebar-menu {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
}

.menu-section {
  margin-bottom: var(--space-6);
}

.menu-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-tertiary);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-2);
}

.modern-sidebar.collapsed .menu-label {
  display: none;
}

.menu-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-3);
  margin-bottom: var(--space-1);
  border-radius: var(--radius-lg);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  transition: all var(--transition-base);
  position: relative;
}

.menu-link:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  transform: translateX(2px);
}

.menu-link.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}

.menu-link i {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.menu-badge {
  margin-left: auto;
  padding: 2px 8px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  font-size: 10px;
  font-weight: 700;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.modern-sidebar.collapsed .menu-link span:not(.menu-badge) {
  display: none;
}

.modern-sidebar.collapsed .menu-badge {
  position: absolute;
  right: 4px;
  top: 4px;
  padding: 2px 4px;
  font-size: 8px;
}

/* Sidebar Footer */
.sidebar-footer {
  padding: var(--space-4);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

.modern-sidebar.collapsed .sidebar-footer {
  display: none;
}

.storage-info {
  padding: var(--space-4);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
}

.storage-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
}

.storage-header i {
  width: 16px;
  height: 16px;
}

.storage-bar {
  height: 8px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-2);
}

.storage-progress {
  height: 100%;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

.storage-text {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

/* Main Wrapper */
.main-wrapper {
  margin-left: 280px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left var(--transition-base);
}

.main-wrapper.expanded {
  margin-left: 80px;
}

/* Top Navigation */
.top-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.nav-left {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex: 1;
}

.nav-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.nav-toggle:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

.nav-toggle i {
  width: 20px;
  height: 20px;
}

.nav-breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.nav-breadcrumbs i {
  width: 14px;
  height: 14px;
  color: var(--color-text-tertiary);
}

.nav-search {
  position: relative;
  max-width: 480px;
  flex: 1;
}

.nav-search::before {
  content: '';
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'%3E%3C/circle%3E%3Cpath d='m21 21-4.35-4.35'%3E%3C/path%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  pointer-events: none;
}

.nav-search input {
  width: 100%;
  height: 40px;
  padding: 0 70px 0 40px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  transition: all var(--transition-base);
}

.nav-search input:focus {
  outline: none;
  background: var(--color-bg-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.nav-search input::-webkit-search-cancel-button {
  display: none;
}

.search-kbd {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  padding: 2px 6px;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-tertiary);
  pointer-events: none;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  position: relative;
}

.nav-icon-btn {
  position: relative;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.nav-icon-btn:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

.nav-icon-btn i {
  width: 20px;
  height: 20px;
}

.notification-dot {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 8px;
  height: 8px;
  background: var(--color-danger);
  border: 2px solid white;
  border-radius: var(--radius-full);
}

.nav-divider {
  width: 1px;
  height: 24px;
  background: var(--color-border);
  margin: 0 var(--space-2);
}

/* User Menu */
.user-menu {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
}

.user-menu:hover {
  background: var(--color-bg-secondary);
}

.user-avatar {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: var(--text-sm);
  flex-shrink: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
}

.user-details {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

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

.user-email {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

.user-menu i {
  width: 16px;
  height: 16px;
  color: var(--color-text-tertiary);
}

/* User Dropdown */
.user-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 280px;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2);
  z-index: var(--z-dropdown);
  animation: dropdownSlide 0.2s ease;
}

@keyframes dropdownSlide {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.dropdown-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
}

.dropdown-avatar {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: var(--text-lg);
  flex-shrink: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
}

.dropdown-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 2px;
}

.dropdown-email {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

.dropdown-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-2) 0;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.dropdown-item:hover {
  background: var(--color-bg-secondary);
}

.dropdown-item.danger {
  color: var(--color-danger);
}

.dropdown-item.danger:hover {
  background: var(--color-danger-light);
}

.dropdown-item i {
  width: 18px;
  height: 18px;
}

/* ===========================
   Dashboard Content
   =========================== */

.dashboard-content {
  flex: 1;
  padding: var(--space-8) var(--space-6);
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
}

/* Welcome Section */
.welcome-section {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.welcome-text {
  flex: 1;
}

.welcome-title {
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.welcome-desc {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

.welcome-actions {
  display: flex;
  gap: var(--space-3);
}

/* Buttons */
.btn-outline,
.btn-primary,
.btn-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  border: none;
}

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

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

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-link {
  background: none;
  border: none;
  color: var(--color-primary);
  padding: var(--space-2) var(--space-3);
}

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

.btn-outline i,
.btn-primary i,
.btn-link i {
  width: 18px;
  height: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  border: none;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn i {
  width: 18px;
  height: 18px;
}

/* Form Styles */
.form-input {
  width: 100%;
  padding: var(--space-3);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  transition: all var(--transition-base);
}

.form-input:focus {
  outline: none;
  background: var(--color-bg-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
}

/* Modern Stats Grid */
.stats-modern {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.stat-modern {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stat-modern::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  transition: transform var(--transition-slow);
}

.stat-modern.primary::before {
  background: linear-gradient(90deg, #6366f1, #8b5cf6);
}

.stat-modern.success::before {
  background: linear-gradient(90deg, #10b981, #059669);
}

.stat-modern.warning::before {
  background: linear-gradient(90deg, #f59e0b, #d97706);
}

.stat-modern.info::before {
  background: linear-gradient(90deg, #3b82f6, #2563eb);
}

.stat-modern:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.stat-modern-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-4);
}

.stat-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base);
}

.stat-modern.primary .stat-icon-wrapper {
  background: linear-gradient(135deg, #eef2ff, #e0e7ff);
  color: var(--color-primary);
}

.stat-modern.success .stat-icon-wrapper {
  background: linear-gradient(135deg, #d1fae5, #a7f3d0);
  color: var(--color-success);
}

.stat-modern.warning .stat-icon-wrapper {
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  color: var(--color-warning);
}

.stat-modern.info .stat-icon-wrapper {
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
  color: var(--color-info);
}

.stat-modern:hover .stat-icon-wrapper {
  transform: scale(1.1) rotate(5deg);
}

.stat-icon-wrapper i {
  width: 26px;
  height: 26px;
}

.stat-badge {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
}

.stat-badge.positive {
  background: var(--color-success-light);
  color: var(--color-success);
}

.stat-badge.negative {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

.stat-badge.neutral {
  background: var(--color-bg-tertiary);
  color: var(--color-text-tertiary);
}

.stat-badge i {
  width: 12px;
  height: 12px;
}

/* Badge Styles */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  white-space: nowrap;
}

.badge i {
  width: 14px;
  height: 14px;
}

.badge-primary {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.badge-success {
  background: var(--color-success-light);
  color: var(--color-success);
}

.badge-warning {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.badge-danger {
  background: var(--color-danger-light);
  color: var(--color-danger);
}

.badge-info {
  background: var(--color-info-light);
  color: var(--color-info);
}

.stat-modern-body {
  margin-bottom: var(--space-3);
}

.stat-modern-value {
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-modern-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.stat-modern-footer {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

/* Charts Grid */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

@media (min-width: 1200px) {
  .charts-grid {
    grid-template-columns: 2fr 1fr;
  }
}

.chart-card {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
}

.chart-card:hover {
  box-shadow: var(--shadow-md);
}

.chart-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.chart-info {
  flex: 1;
}

.chart-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.chart-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.chart-tabs {
  display: flex;
  gap: var(--space-2);
}

.chart-tab {
  padding: var(--space-2) var(--space-4);
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.chart-tab:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

.chart-tab.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.chart-body {
  padding: var(--space-6);
  height: 400px;
  position: relative;
}

.chart-card:not(.large) .chart-body {
  height: 300px;
}

.chart-body canvas {
  max-width: 100%;
  height: 100% !important;
}

.chart-stats {
  display: flex;
  gap: var(--space-6);
  padding: var(--space-5) var(--space-6);
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
}

.chart-stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.chart-stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  font-weight: 500;
}

.chart-stat-value {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text-primary);
}

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

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

/* Bottom Grid */
.bottom-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 1200px) {
  .bottom-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Panel Styles */
.activity-panel,
.actions-panel {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.panel-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text-primary);
}

.panel-title i {
  width: 20px;
  height: 20px;
}

/* Activity List */
.activity-list {
  padding: var(--space-2);
  max-height: 500px;
  overflow-y: auto;
}

.activity-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  cursor: pointer;
}

.activity-item:hover {
  background: var(--color-bg-secondary);
  transform: translateX(4px);
}

.activity-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.activity-item:hover .activity-icon-wrapper {
  transform: scale(1.1);
}

.activity-icon-wrapper.success {
  background: var(--color-success-light);
  color: var(--color-success);
}

.activity-icon-wrapper.info {
  background: var(--color-info-light);
  color: var(--color-info);
}

.activity-icon-wrapper.primary {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.activity-icon-wrapper.warning {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.activity-icon-wrapper i {
  width: 20px;
  height: 20px;
}

.activity-content {
  flex: 1;
}

.activity-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.activity-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

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

/* Actions List */
.actions-list {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.action-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.action-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  transition: transform var(--transition-base);
}

.action-card.primary::before {
  background: var(--color-primary);
}

.action-card.success::before {
  background: var(--color-success);
}

.action-card.info::before {
  background: var(--color-info);
}

.action-card.warning::before {
  background: var(--color-warning);
}

.action-card:hover {
  background: var(--color-bg-primary);
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.action-card:hover::before {
  transform: scaleY(1);
}

.action-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.action-card.primary .action-icon {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.action-card.success .action-icon {
  background: var(--color-success-light);
  color: var(--color-success);
}

.action-card.info .action-icon {
  background: var(--color-info-light);
  color: var(--color-info);
}

.action-card.warning .action-icon {
  background: var(--color-warning-light);
  color: var(--color-warning);
}

.action-card:hover .action-icon {
  transform: scale(1.1) rotate(5deg);
}

.action-icon i {
  width: 20px;
  height: 20px;
}

.action-text {
  flex: 1;
}

.action-text h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.action-text p {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
}

.action-arrow {
  width: 20px;
  height: 20px;
  color: var(--color-text-tertiary);
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.action-card:hover .action-arrow {
  transform: translateX(4px);
  color: var(--color-text-primary);
}

/* ===========================
   Responsive Design
   =========================== */

@media (max-width: 1199px) {
  .charts-grid {
    grid-template-columns: 1fr;
  }
  
  .bottom-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1024px) {
  .modern-sidebar {
    transform: translateX(-100%);
  }
  
  .modern-sidebar.active {
    transform: translateX(0);
  }
  
  .main-wrapper {
    margin-left: 0;
  }
}

@media (max-width: 768px) {
  .dashboard-content {
    padding: var(--space-6) var(--space-4);
  }
  
  .welcome-section {
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .welcome-actions {
    width: 100%;
  }
  
  .welcome-actions .btn-outline,
  .welcome-actions .btn-primary {
    flex: 1;
  }
  
  .stats-modern {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  
  .chart-card-header {
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .chart-tabs {
    width: 100%;
    justify-content: flex-start;
  }
  
  .nav-search {
    display: none;
  }
  
  .user-details {
    display: none;
  }
}

@media (max-width: 480px) {
  .welcome-title {
    font-size: var(--text-2xl);
  }
  
  .stat-modern-value {
    font-size: 2rem;
  }
  
  .chart-body {
    padding: var(--space-4);
    height: 300px;
  }
  
  .activity-list {
    max-height: 400px;
  }
}

/* Modal Close Button */
.modal-close-btn {
  position: absolute !important;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 9999 !important;
  pointer-events: auto !important;
  overflow: hidden;
}

.modal-close-btn:hover {
  background: var(--color-danger-light);
  border-color: var(--color-danger);
  color: var(--color-danger);
  transform: scale(1.1);
}

/* КРИТИЧНО: Все дочерние элементы кнопки не должны перехватывать клики */
.modal-close-btn i,
.modal-close-btn svg,
.modal-close-btn svg * {
  width: 20px;
  height: 20px;
  max-width: 20px;
  max-height: 20px;
  pointer-events: none !important;
}

/* SVG элементы от Lucide */
.modal-close-btn svg {
  display: block;
  position: relative;
  z-index: 1;
}

/* Button Icon Visibility Fix */
.btn-primary i,
.btn-outline i,
.btn i,
.btn-primary:hover i,
.btn-outline:hover i,
.btn:hover i,
.filter-tab i,
.filter-tab.active i,
.chart-tab i,
.chart-tab.active i {
  position: relative !important;
  z-index: 100 !important;
  pointer-events: none !important;
}

/* Prevent pseudo-elements from covering icons */
.btn::before,
.btn::after,
.btn-primary::before,
.btn-primary::after,
.btn-outline::before,
.btn-outline::after,
.filter-tab::before,
.filter-tab::after,
.chart-tab::before,
.chart-tab::after {
  z-index: -1 !important;
}

/* Spinner Animation - ПЛАВНОЕ вращение (3 секунды) */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.loading-spinner,
[data-lucide="loader"],
i[data-lucide="loader"] {
  animation: spin 3s linear infinite !important;  /* 3 секунды = плавное вращение */
}

/* УНИВЕРСАЛЬНАЯ ИКОНКА ЗАГРУЗКИ */
.icon-loading {
  animation: spin 3s linear infinite !important;
  display: inline-block;
}

/* ===========================
   Action Toolbar & Period Selector
   Universal components for VK Ads, Playlists, etc.
   =========================== */

.action-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* Period Tabs - Universal */
.period-tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.period-tabs .period-tab {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.period-tabs .period-tab:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-tertiary);
}

.period-tabs .period-tab.active {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
  box-shadow: var(--shadow-sm);
}

/* Action Button - Universal */
.btn-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  height: 38px;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
  border: none;
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: 0 2px 4px rgba(16, 185, 129, 0.2);
  white-space: nowrap;
}

.btn-action:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-action:active {
  transform: translateY(0);
}

.btn-action:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-action i {
  width: 16px;
  height: 16px;
}

/* Btn Action Variants */
.btn-action.secondary {
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  box-shadow: none;
}

.btn-action.secondary:hover {
  background: var(--color-bg-secondary);
  border-color: var(--color-success);
  color: var(--color-success);
  box-shadow: none;
}

.btn-action.danger {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  box-shadow: 0 2px 4px rgba(239, 68, 68, 0.2);
}

.btn-action.danger:hover {
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

/* Icon-only action button */
.btn-action.icon-only {
  width: 38px;
  padding: 0;
}

/* Sync animation for refresh icon */
.btn-action.syncing i {
  animation: spin 1s linear infinite;
}

/* ===========================
   Universal Filter & Refresh Components
   Modern design system - 2025
   =========================== */

/* Period Filter - Segmented Control */
.period-filter {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.period-filter__btn {
  position: relative;
  padding: 8px 16px;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  z-index: 1;
}

.period-filter__btn:hover:not(.active) {
  color: var(--color-text-primary);
  background: rgba(0, 0, 0, 0.04);
}

.period-filter__btn.active {
  color: white;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.25);
}

/* Compact variant for smaller spaces */
.period-filter--compact .period-filter__btn {
  padding: 6px 12px;
  font-size: 13px;
}

/* Refresh Button - Modern */
.btn-refresh {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  height: 38px;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-refresh:hover {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  border-color: transparent;
  color: white;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
  transform: translateY(-1px);
}

.btn-refresh:active {
  transform: translateY(0);
}

.btn-refresh:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-refresh i {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.btn-refresh:hover i {
  transform: rotate(45deg);
}

.btn-refresh.syncing i {
  animation: spin 1s linear infinite;
}

.btn-refresh.syncing:hover i {
  transform: none;
}

/* Icon-only variant */
.btn-refresh--icon {
  width: 38px;
  padding: 0;
}

.btn-refresh--icon span {
  display: none;
}

/* Toolbar container for filter + button */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .period-filter {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .period-filter__btn {
    padding: 6px 12px;
    font-size: 13px;
  }
  
  .toolbar {
    width: 100%;
    justify-content: space-between;
  }
  
  .btn-refresh span {
    display: none;
  }
  
  .btn-refresh {
    width: 38px;
    padding: 0;
  }
}

/* Print Styles */
@media print {
  .modern-sidebar,
  .top-nav {
    display: none !important;
  }
  
  .main-wrapper {
    margin-left: 0;
  }
}