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

:root {
  --bg-color: #f8fafc;
  --panel-bg: #ffffff;
  --panel-border: #e2e8f0;
  --panel-hover: #f8fafc;
  --text-main: #0f172a;
  --text-muted: #64748b;
  
  /* Curated Premium Colors */
  --primary: #6366f1; /* Indigo */
  --primary-glow: rgba(99, 102, 241, 0.08);
  --primary-hover: #4f46e5;
  
  --success: #10b981; /* Emerald */
  --success-glow: rgba(16, 185, 129, 0.08);
  --warning: #f59e0b; /* Amber */
  --warning-glow: rgba(245, 158, 11, 0.08);
  --danger: #ef4444; /* Rose */
  --danger-glow: rgba(239, 68, 68, 0.08);
  
  /* Dark Sidebar Theme */
  --sidebar-bg: #0f172a;
  --sidebar-border: #1e293b;
  --sidebar-text: #94a3b8;
  --sidebar-text-active: #ffffff;
  --sidebar-hover-bg: #1e293b;
  
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --sidebar-width: 260px;
  --border-radius: 14px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 20px -2px rgba(0, 0, 0, 0.05), 0 2px 8px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 12px 30px -4px rgba(0, 0, 0, 0.08), 0 4px 12px -2px rgba(0, 0, 0, 0.04);
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* Layout */
.app-container {
  display: flex;
  width: 100vw;
  min-height: 100vh;
}

/* Sidebar styling */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  padding: 2.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  left: 0;
  top: 0;
  z-index: 100;
  box-shadow: 10px 0 30px rgba(0,0,0,0.05);
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
  padding-left: 0.5rem;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), #a855f7);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.15rem;
  color: white;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.logo-text {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #ffffff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.nav-item a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.8rem 1rem;
  color: var(--sidebar-text);
  text-decoration: none;
  border-radius: var(--border-radius);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}

.nav-item a:hover {
  color: var(--sidebar-text-active);
  background-color: var(--sidebar-hover-bg);
  transform: translateX(4px);
}

.nav-item.active a {
  background: linear-gradient(135deg, var(--primary), rgba(99, 102, 241, 0.8));
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
  font-weight: 600;
}

.nav-item.active a:hover {
  transform: none;
}

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

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-main);
  background: linear-gradient(135deg, #0f172a, #334155);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.content-body {
  padding: 2.5rem 3rem;
  flex: 1;
}

/* Common UI Elements */
.card {
  background-color: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--border-radius);
  padding: 1.75rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.glow-primary {
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.08);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-size: 0.95rem;
  text-decoration: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #818cf8);
  color: white;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-hover), var(--primary));
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--text-main);
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--panel-hover);
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md);
}

.btn-success {
  background: linear-gradient(135deg, var(--success), #34d399);
  color: white;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}

.btn-success:hover {
  background: linear-gradient(135deg, #059669, var(--success));
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.35);
  transform: translateY(-1px);
}

.btn-disabled {
  opacity: 0.5;
  cursor: not-allowed !important;
  transform: none !important;
  box-shadow: none !important;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.85rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-draft {
  background-color: #f1f5f9;
  color: #475569;
  border: 1px solid #e2e8f0;
}

.badge-pending {
  background-color: var(--warning-glow);
  color: #d97706;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge-success {
  background-color: var(--success-glow);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-danger {
  background-color: var(--danger-glow);
  color: #dc2626;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Form inputs */
.form-group {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-control {
  background-color: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  padding: 0.8rem 1.1rem;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  width: 100%;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}

.form-control::placeholder {
  color: #94a3b8;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
}

/* Tables */
.table-container {
  overflow-x: auto;
  margin-top: 1.25rem;
  border-radius: 10px;
  border: 1px solid var(--panel-border);
}

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

.table th {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--panel-border);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background-color: #f8fafc;
}

.table td {
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--panel-border);
  font-size: 0.95rem;
  vertical-align: middle;
  background-color: #ffffff;
}

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

.table tr:hover td {
  background-color: #f8fafc;
}

/* Micro-animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.35s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Button Loading / Processing Progress Bar */
.btn-loading-bar {
  position: relative;
  overflow: hidden !important;
  pointer-events: none !important;
  opacity: 0.85 !important;
}

.btn-loading-bar::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  height: 4px;
  width: 100%;
  background: linear-gradient(90deg, #6366f1, #a855f7, #10b981, #6366f1);
  background-size: 200% 100%;
  animation: btnProgress 1.2s linear infinite;
}

@keyframes btnProgress {
  0% { background-position: 0% 0%; }
  100% { background-position: 200% 0%; }
}

.btn-spinner {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: btnSpinner 0.6s linear infinite;
  margin-right: 0.4rem;
  vertical-align: middle;
}

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

/* Mobile Navigation Header & Drawer Overlay */
.mobile-header {
  display: none;
  height: 60px;
  background-color: var(--sidebar-bg);
  border-bottom: 1px solid var(--sidebar-border);
  padding: 0 1.25rem;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 99;
}

.mobile-toggle {
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-toggle:hover {
  background-color: var(--sidebar-hover-bg);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
  display: block;
  opacity: 1;
}

/* Responsive Media Queries */
@media (max-width: 900px) {
  .responsive-grid-2 {
    grid-template-columns: 1fr !important;
  }
  
  .responsive-summary-grid {
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
  }
}

@media (max-width: 768px) {
  .mobile-header {
    display: flex;
  }
  
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .main-wrapper {
    margin-left: 0 !important;
  }
  
  .content-body {
    padding: 1.25rem 1rem !important;
  }
  
  .page-title {
    font-size: 1.35rem !important;
  }
  
  .card {
    padding: 1.25rem !important;
  }
  
  .form-row {
    grid-template-columns: 1fr !important;
  }

  .responsive-flex-header {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 1rem !important;
  }

  .responsive-flex-header > div {
    width: 100%;
  }

  .responsive-flex-header .btn {
    width: 100%;
    justify-content: center;
  }

  .responsive-logo-upload {
    grid-template-columns: 1fr !important;
    text-align: center;
  }

  .table-container {
    -webkit-overflow-scrolling: touch;
  }
}

@media (max-width: 480px) {
  .content-body {
    padding: 1rem 0.75rem !important;
  }
  
  .login-card {
    padding: 1.5rem !important;
    margin: 1rem;
  }
}

/* Receipt Print layout */
@media print {
  body {
    background: white;
    color: black;
  }
  .sidebar, .header, .mobile-header, .sidebar-overlay, .btn, .logs-panel, .no-print {
    display: none !important;
  }
  .main-wrapper {
    margin-left: 0 !important;
  }
  .content-body {
    padding: 0;
  }
  .card {
    border: none !important;
    box-shadow: none !important;
    transform: none !important;
  }
}

/* Analytics & Reports Styles */
.filter-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.preset-btn {
  padding: 0.45rem 0.9rem;
  border-radius: 20px;
  border: 1px solid var(--panel-border);
  background-color: var(--bg-color);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.preset-btn:hover {
  background-color: var(--primary-glow);
  color: var(--primary);
  border-color: var(--primary);
}

.preset-btn.active {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

.chart-card {
  background-color: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
}

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

.chart-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.chart-container {
  position: relative;
  width: 100%;
  height: 280px;
}

.analytics-stat-card {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--border-radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.analytics-stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.analytics-stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background-color: var(--stat-accent, var(--primary));
  border-radius: 4px 0 0 4px;
}