/* ============================================
   Inbound Voice Agent ROI Calculator
   Enterprise Design System
   ============================================ */

/* Prevent flash of unstyled/unconfigured content */
.js-loading {
  opacity: 0;
  transition: opacity 0.15s ease-in;
}
.js-loaded {
  opacity: 1;
}

/* ===== CSS Variables ===== */
:root {
  /* Primary Color Palette */
  --color-primary: #2C2657;           /* Deep Purple - main brand */
  --color-primary-light: #3D3572;     /* Lighter purple for hovers */
  --color-primary-dark: #1E1A3D;      /* Darker purple for depth */
  
  --color-accent: #D6B897;            /* Warm Gold - premium accents */
  --color-accent-light: #E5CFBA;      /* Light gold for subtle highlights */
  --color-accent-dark: #C4A57E;       /* Dark gold for text on light bg */
  
  /* Neutral Colors */
  --color-bg-light: #F2F2F2;          /* Light gray - main background */
  --color-bg-white: #FFFFFF;          /* Pure white - cards */
  --color-bg-dark: #0E0E0E;           /* Near black - dark sections */
  
  --color-text-primary: #0E0E0E;      /* Near black - headings */
  --color-text-secondary: #717171;    /* Medium gray - body text */
  --color-text-tertiary: #9A9A9A;     /* Light gray - muted text */
  --color-text-inverse: #FFFFFF;      /* White text on dark bg */
  
  --color-border: #E5E5E5;            /* Light border */
  --color-border-dark: #D0D0D0;       /* Darker border for focus */
  
  /* Status Colors */
  --color-success: #2E7D32;           /* Forest green */
  --color-success-light: #E8F5E9;     /* Light green bg */
  --color-error: #C62828;             /* Deep red */
  --color-error-light: #FFEBEE;       /* Light red bg */
  --color-warning: #F57C00;           /* Orange */
  --color-warning-light: #FFF3E0;     /* Light orange bg */
  --color-info: #1565C0;              /* Blue */
  --color-info-light: #E3F2FD;        /* Light blue bg */
  
  /* Typography */
  --font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;            /* 12px */
  --font-size-sm: 0.875rem;           /* 14px */
  --font-size-base: 1rem;             /* 16px */
  --font-size-lg: 1.125rem;           /* 18px */
  --font-size-xl: 1.25rem;            /* 20px */
  --font-size-2xl: 1.5rem;            /* 24px */
  --font-size-3xl: 1.875rem;          /* 30px */
  --font-size-4xl: 2.25rem;           /* 36px */
  
  /* 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: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  
  /* Layout */
  --sidebar-width: 260px;
  --header-height: 64px;
}

/* ===== Dark Mode ===== */
[data-theme="dark"] {
  --color-primary: #3D3572;
  --color-primary-light: #4E4589;
  --color-primary-dark: #2C2657;
  
  --color-accent: #E5CFBA;
  --color-accent-light: #F0E0D0;
  --color-accent-dark: #D6B897;
  
  --color-bg-light: #1a1a2e;
  --color-bg-white: #242442;
  --color-bg-dark: #0E0E0E;
  
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #FFFFFF;
  --color-text-tertiary: #CCCCCC;
  --color-text-inverse: #0E0E0E;
  
  --color-border: #3a3a5a;
  --color-border-dark: #4a4a6a;
  
  --color-success: #4CAF50;
  --color-success-light: #1B3D1E;
  --color-error: #EF5350;
  --color-error-light: #3D1B1B;
  --color-warning: #FFB74D;
  --color-warning-light: #3D2E1B;
  --color-info: #42A5F5;
  --color-info-light: #1B2E3D;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
}

/* Dark mode specific overrides */

/* Sidebar elements */
[data-theme="dark"] .sidebar-logo-text {
  color: var(--color-accent);
}

[data-theme="dark"] .user-name {
  color: var(--color-accent);
}

/* Button text fix */
[data-theme="dark"] .btn-primary {
  color: var(--color-accent);
}

/* Results page header - keep white text on dark purple */
[data-theme="dark"] .results-header {
  color: #FFFFFF;
}

[data-theme="dark"] .results-header .results-customer,
[data-theme="dark"] .results-header .results-meta,
[data-theme="dark"] .results-header .hero-savings-label,
[data-theme="dark"] .results-header .hero-savings-period {
  color: rgba(255, 255, 255, 0.7);
}

[data-theme="dark"] .results-header .hero-savings-value {
  color: #FFFFFF;
}

/* Value cards */
[data-theme="dark"] .value-card.time .value-icon {
  background: rgba(214, 184, 151, 0.2);
}

[data-theme="dark"] .value-card.capacity .value-icon {
  background: rgba(214, 184, 151, 0.2);
}

[data-theme="dark"] .value-card.cost {
  background: linear-gradient(135deg, rgba(46, 125, 50, 0.15) 0%, var(--color-bg-white) 100%);
  border-color: rgba(46, 125, 50, 0.4);
}

[data-theme="dark"] .value-card.cost .value-icon {
  background: var(--color-success);
  color: white;
}

/* Comparison section */
[data-theme="dark"] .comparison-card.before {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--color-border);
}

[data-theme="dark"] .comparison-card.after {
  background: linear-gradient(135deg, rgba(46, 125, 50, 0.2) 0%, rgba(46, 125, 50, 0.08) 100%);
  border-color: var(--color-success);
}

/* Feature tags */
[data-theme="dark"] .feature-tag {
  background: rgba(214, 184, 151, 0.15);
}

/* Card titles and page headers */
[data-theme="dark"] .card-title,
[data-theme="dark"] .comparison-title,
[data-theme="dark"] .features-title,
[data-theme="dark"] .page-title,
[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3 {
  color: var(--color-text-primary);
}

/* Form labels and inputs */
[data-theme="dark"] .form-label {
  color: var(--color-text-primary);
}

[data-theme="dark"] .form-input,
[data-theme="dark"] .form-select,
[data-theme="dark"] .form-textarea {
  background: var(--color-bg-light);
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

[data-theme="dark"] .form-input::placeholder {
  color: var(--color-text-tertiary);
}

/* Empty states */
[data-theme="dark"] .empty-state-title {
  color: var(--color-text-primary);
}

[data-theme="dark"] .empty-state-description {
  color: var(--color-text-secondary);
}

/* Settings tabs */
[data-theme="dark"] .settings-tab {
  color: var(--color-text-secondary);
}

[data-theme="dark"] .settings-tab.active {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* Toggle switches */
[data-theme="dark"] .toggle-label {
  color: var(--color-text-primary);
}

/* Page header subtitle */
[data-theme="dark"] .page-header-content p {
  color: var(--color-text-secondary);
}

/* Card descriptions */
[data-theme="dark"] .card-description {
  color: var(--color-text-secondary);
}

/* Stats and values in cards */
[data-theme="dark"] .stat-value,
[data-theme="dark"] .value-stat {
  color: var(--color-text-primary);
}

/* Math explainer section */
[data-theme="dark"] .math-explainer-title {
  color: var(--color-text-primary);
}

/* Assessment cards in dashboard */
[data-theme="dark"] .assessment-name {
  color: var(--color-text-primary);
}

[data-theme="dark"] .assessment-meta {
  color: var(--color-text-tertiary);
}

/* Stat card icons in dark mode */
[data-theme="dark"] .stat-card-icon.primary {
  background: rgba(229, 207, 186, 0.15);
  color: var(--color-accent);
}

[data-theme="dark"] .stat-card-icon.accent {
  background: rgba(229, 207, 186, 0.15);
  color: var(--color-accent);
}

[data-theme="dark"] .stat-card-icon.success {
  background: rgba(76, 175, 80, 0.2);
  color: #81C784;
}

[data-theme="dark"] .stat-card-value {
  color: var(--color-text-primary);
}

[data-theme="dark"] .stat-card-label {
  color: var(--color-text-secondary);
}

/* ===== Base Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-light);
  min-height: 100vh;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-base); }
h6 { font-size: var(--font-size-sm); }

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-light);
}

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

/* App Shell */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
}

.sidebar-header {
  padding: var(--space-6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.sidebar-logo-icon {
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--color-primary);
}

.sidebar-logo-text {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-4);
  overflow-y: auto;
}

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

.nav-section-title {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.4);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-2);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-inverse);
}

.nav-item.active {
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-accent);
}

.nav-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-menu {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  transition: background var(--transition-fast);
}

.user-menu:hover {
  background: rgba(255, 255, 255, 0.1);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.user-info {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-inverse);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

/* Main Content Area */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Page Header */
.page-header {
  background: var(--color-bg-white);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-6) var(--space-8);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.page-header-content h1 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-1);
}

.page-header-content p {
  font-size: var(--font-size-sm);
}

.page-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Page Body */
.page-body {
  flex: 1;
  padding: var(--space-8);
  overflow-y: auto;
}

.page-body-narrow {
  max-width: 800px;
}

.page-body-wide {
  max-width: 1400px;
}

/* ===== Cards ===== */
.card {
  background: var(--color-bg-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.card-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.card-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.card-body {
  padding: var(--space-6);
}

.card-footer {
  padding: var(--space-4) var(--space-6);
  background: var(--color-bg-light);
  border-top: 1px solid var(--color-border);
}

/* Stat Cards */
.stat-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
}

.stat-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}

.stat-card-icon.primary {
  background: rgba(44, 38, 87, 0.1);
  color: var(--color-primary);
}

.stat-card-icon.accent {
  background: rgba(214, 184, 151, 0.2);
  color: var(--color-accent-dark);
}

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

.stat-card-value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}

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

.stat-card-trend {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-xs);
  font-weight: 500;
  margin-top: var(--space-2);
}

.stat-card-trend.up {
  color: var(--color-success);
}

.stat-card-trend.down {
  color: var(--color-error);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: 500;
  line-height: 1;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

/* Primary Button */
.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Secondary Button */
.btn-secondary {
  background: var(--color-bg-white);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-bg-light);
  border-color: var(--color-border-dark);
}

/* Accent Button */
.btn-accent {
  background: var(--color-accent);
  color: var(--color-primary);
}

.btn-accent:hover:not(:disabled) {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Ghost Button */
.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-bg-light);
  color: var(--color-text-primary);
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--space-4) var(--space-6);
  font-size: var(--font-size-base);
}

/* ===== Form Elements ===== */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.form-label-required::after {
  content: ' *';
  color: var(--color-error);
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: inherit;
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(44, 38, 87, 0.1);
}

.form-input::placeholder {
  color: var(--color-text-tertiary);
}

.form-input:disabled {
  background: var(--color-bg-light);
  cursor: not-allowed;
}

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--space-1);
}

.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
}

/* Select */
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23717171'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 20px;
  padding-right: var(--space-10);
}

/* Textarea */
.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Toggle Switch */
.toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.toggle-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  width: 44px;
  height: 24px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  position: relative;
}

.toggle-slider::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: var(--color-bg-white);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.toggle-input:checked + .toggle-slider {
  background: var(--color-primary);
}

.toggle-input:checked + .toggle-slider::after {
  transform: translateX(20px);
}

.toggle-input:focus + .toggle-slider {
  box-shadow: 0 0 0 3px rgba(44, 38, 87, 0.1);
}

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

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  background: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
}

.table td {
  padding: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.table tbody tr:hover {
  background: var(--color-bg-light);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

/* ===== Badges ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: 500;
  border-radius: var(--radius-full);
}

.badge-primary {
  background: rgba(44, 38, 87, 0.1);
  color: var(--color-primary);
}

.badge-accent {
  background: rgba(214, 184, 151, 0.3);
  color: var(--color-accent-dark);
}

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

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

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

/* ===== Alerts ===== */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
}

.alert svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 1px;
}

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

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

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

.alert-error {
  background: var(--color-error-light);
  color: var(--color-error);
}

/* ===== Empty States ===== */
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-6);
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-4);
  color: var(--color-text-tertiary);
}

.empty-state-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.empty-state-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Loading States ===== */
.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== Progress Steps ===== */
.progress-steps {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-8);
}

.progress-step {
  flex: 1;
  text-align: center;
  position: relative;
}

.progress-step::before {
  content: '';
  position: absolute;
  top: 16px;
  left: 50%;
  right: -50%;
  height: 2px;
  background: var(--color-border);
}

.progress-step:last-child::before {
  display: none;
}

.progress-step.completed::before {
  background: var(--color-primary);
}

.progress-step-number {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--color-bg-white);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin: 0 auto var(--space-2);
  position: relative;
  z-index: 1;
}

.progress-step.active .progress-step-number {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.progress-step.completed .progress-step-number {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
}

.progress-step-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.progress-step.active .progress-step-label,
.progress-step.completed .progress-step-label {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* ===== Utility Classes ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-tertiary); }
.text-accent { color: var(--color-accent-dark); }
.text-success { color: var(--color-success); }
.text-error { color: var(--color-error); }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.mt-0 { margin-top: 0; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.hidden { display: none !important; }

/* ===== Animations ===== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

.animate-fade-in {
  animation: fadeIn var(--transition-base);
}

.animate-slide-up {
  animation: slideUp var(--transition-base);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  :root {
    --sidebar-width: 220px;
  }
  
  .page-body {
    padding: var(--space-6);
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .page-header {
    padding: var(--space-4);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }
  
  .page-body {
    padding: var(--space-4);
  }
  
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
}

/* ===== Print Styles ===== */
@media print {
  .sidebar,
  .page-header-actions,
  .btn,
  .no-print {
    display: none !important;
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid var(--color-border);
  }
  
  body {
    background: white;
  }
}

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

::-webkit-scrollbar-track {
  background: var(--color-bg-light);
}

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

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

/* ===== Theme Toggle ===== */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  cursor: pointer;
  color: rgba(255, 255, 255, 0.6);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.9);
}

.theme-toggle svg {
  width: 14px;
  height: 14px;
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  display: none;
}

/* Show sun icon in dark mode (to switch to light) */
[data-theme="dark"] .theme-toggle .icon-sun {
  display: block;
}

/* Show moon icon in light mode (to switch to dark) */
:root:not([data-theme="dark"]) .theme-toggle .icon-moon,
[data-theme="light"] .theme-toggle .icon-moon {
  display: block;
}

.sidebar-footer-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.sidebar-footer .user-section {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
  min-width: 0;
}

.sidebar-footer .user-avatar {
  width: 32px;
  height: 32px;
  font-size: var(--font-size-sm);
}

.sidebar-footer .user-name {
  font-size: var(--font-size-xs);
}

.sidebar-footer .user-role {
  font-size: 10px;
}

.sidebar-footer .action-buttons {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-footer .action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  cursor: pointer;
  color: rgba(255, 255, 255, 0.6);
  transition: all var(--transition-fast);
}

.sidebar-footer .action-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.9);
}

.sidebar-footer .action-btn svg {
  width: 14px;
  height: 14px;
}