/**
 * PostPro Design System
 * Ecomiq-inspired theme with Light/Dark mode
 */

/* ============================================
   CSS Variables - Ecomiq Design System
   ============================================ */
:root {
  /* Primary Colors */
  --color-primary: #FF6B2C;
  --color-primary-dark: #E85A1F;
  --color-primary-light: rgba(255, 107, 44, 0.1);
  
  /* Dark Theme Base */
  --color-dark: #2C3E50;
  --color-dark-secondary: #34495E;
  
  /* Grays */
  --color-gray-900: #1A202C;
  --color-gray-800: #2D3748;
  --color-gray-700: #4A5568;
  --color-gray-600: #718096;
  --color-gray-500: #7F8C97;
  --color-gray-400: #A0AEC0;
  --color-gray-300: #CBD5E0;
  --color-gray-200: #E2E8F0;
  --color-gray-100: #F5F7FA;
  --color-white: #FFFFFF;
  
  /* Status Colors */
  --color-success: #10B981;
  --color-success-light: rgba(16, 185, 129, 0.1);
  --color-error: #EF4444;
  --color-error-light: rgba(239, 68, 68, 0.1);
  --color-warning: #F59E0B;
  --color-warning-light: rgba(245, 158, 11, 0.1);
  --color-info: #3B82F6;
  --color-info-light: rgba(59, 130, 246, 0.1);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Font */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Sidebar */
  --sidebar-width: 280px;
  --sidebar-collapsed: 80px;
}

/* Light Theme (default) */
[data-theme="light"] {
  --bg-primary: var(--color-white);
  --bg-secondary: var(--color-gray-100);
  --bg-card: var(--color-white);
  --text-primary: var(--color-gray-900);
  --text-secondary: var(--color-gray-600);
  --text-muted: var(--color-gray-500);
  --border-color: #E5E7EB;
  --sidebar-bg: var(--color-dark);
  --sidebar-text: var(--color-white);
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #1A1D24;
  --bg-secondary: #22262F;
  --bg-card: #2A2E37;
  --text-primary: var(--color-white);
  --text-secondary: var(--color-gray-400);
  --text-muted: var(--color-gray-500);
  --border-color: #3A3F4B;
  --sidebar-bg: #14171C;
  --sidebar-text: var(--color-white);
}

/* ============================================
   Base Styles
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 14px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  margin: 0;
  padding: 0;
  line-height: 1.6;
  min-height: 100vh;
}

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

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* ============================================
   Typography
   ============================================ */
h1 {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 1rem;
  color: var(--text-primary);
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
  color: var(--text-primary);
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--text-primary);
}

h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--text-primary);
}

p {
  margin: 0 0 1rem;
  color: var(--text-secondary);
}

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

/* ============================================
   Layout
   ============================================ */
.layout {
  display: flex;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: 2rem;
  min-height: 100vh;
  transition: margin-left var(--transition-normal);
}

@media (max-width: 1024px) {
  .main-content {
    margin-left: 0;
    padding: 1rem;
  }
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

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

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
}

.sidebar-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.sidebar-nav {
  flex: 1;
  padding: 1rem 0;
  overflow-y: auto;
}

.sidebar-section {
  padding: 0 1rem;
  margin-bottom: 1.5rem;
}

.sidebar-section-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-500);
  padding: 0 0.75rem;
  margin-bottom: 0.5rem;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: var(--radius-md);
  color: var(--color-gray-300);
  transition: all var(--transition-fast);
  margin-bottom: 0.25rem;
  position: relative;
}

.sidebar-link:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-white);
  text-decoration: none;
}

.sidebar-link.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-left: 4px solid var(--color-primary);
  margin-left: -4px;
  padding-left: calc(0.75rem + 4px);
}

.sidebar-link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

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

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  margin: 0;
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

/* Stat Cards */
.stat-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.stat-card .stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.stat-card .stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.stat-card .stat-change {
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

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

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

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
  text-decoration: none;
}

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

.btn-secondary:hover {
  background: var(--bg-secondary);
  text-decoration: none;
}

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

.btn-ghost:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
  text-decoration: none;
}

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

.btn-danger {
  background: var(--color-error);
  color: var(--color-white);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.btn-icon {
  padding: 0.5rem;
  border-radius: var(--radius-md);
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  height: 44px;
  padding: 0 1rem;
  font-size: 0.875rem;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

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

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

.form-textarea {
  height: auto;
  min-height: 100px;
  padding: 0.75rem 1rem;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

.form-checkbox {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

.form-help {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.form-error {
  font-size: 0.8125rem;
  color: var(--color-error);
  margin-top: 0.25rem;
}

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

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

.table th,
.table td {
  padding: 0.875rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.table th {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  background: var(--bg-secondary);
}

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

.table td {
  font-size: 0.875rem;
  color: var(--text-primary);
}

/* ============================================
   Badges
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--radius-full);
}

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

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

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

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

.badge-gray {
  background: var(--color-gray-200);
  color: var(--color-gray-700);
}

[data-theme="dark"] .badge-gray {
  background: var(--color-gray-700);
  color: var(--color-gray-300);
}

/* ============================================
   Alerts
   ============================================ */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.alert-success {
  background: var(--color-success-light);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.alert-error {
  background: var(--color-error-light);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

.alert-warning {
  background: var(--color-warning-light);
  color: var(--color-warning);
  border: 1px solid var(--color-warning);
}

.alert-info {
  background: var(--color-info-light);
  color: var(--color-info);
  border: 1px solid var(--color-info);
}

/* ============================================
   Modal
   ============================================ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal-backdrop.active .modal {
  transform: scale(1);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0.5rem;
  border-radius: var(--radius-md);
}

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

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  max-height: 60vh;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* ============================================
   Loading
   ============================================ */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--border-color);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

[data-theme="dark"] .loading-overlay {
  background: rgba(0, 0, 0, 0.6);
}

/* ============================================
   Progress Bar
   ============================================ */
.progress {
  height: 8px;
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
}

/* ============================================
   Grid Utilities
   ============================================ */
.grid {
  display: grid;
  gap: 1.5rem;
}

.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); }

@media (max-width: 1024px) {
  .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-cols-4,
  .grid-cols-3,
  .grid-cols-2 { grid-template-columns: 1fr; }
}

/* ============================================
   Flex Utilities
   ============================================ */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }

/* ============================================
   Spacing Utilities
   ============================================ */
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }

.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }

.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }

/* ============================================
   Text Utilities
   ============================================ */
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-lg { font-size: 1.125rem; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.text-center { text-align: center; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-error { color: var(--color-error); }
.text-warning { color: var(--color-warning); }