/* app.css - Shared Styles for Bank SMS Tracker */
/* v13.0 - Multi-Page Edition */

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: #f9fafb;
  color: #1f2937;
  line-height: 1.6;
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.loading-overlay.hidden {
  display: none;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid #e5e7eb;
  border-top-color: #4f46e5;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem;
}

/* Card */
.card {
  background: white;
  border-radius: 1rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

/* Button Styles */
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background-color: #4f46e5;
  color: white;
}

.btn-primary:hover {
  background-color: #4338ca;
}

.btn-secondary {
  background-color: #6b7280;
  color: white;
}

.btn-secondary:hover {
  background-color: #4b5563;
}

.btn-success {
  background-color: #10b981;
  color: white;
}

.btn-success:hover {
  background-color: #059669;
}

.btn-danger {
  background-color: #ef4444;
  color: white;
}

.btn-danger:hover {
  background-color: #dc2626;
}

.btn:disabled {
  background-color: #9ca3af;
  cursor: not-allowed;
}

/* Input Styles */
.input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid #e5e7eb;
  border-radius: 0.75rem;
  font-size: 1rem;
  transition: border-color 0.2s;
}

.input:focus {
  outline: none;
  border-color: #4f46e5;
}

/* Grid */
.grid {
  display: grid;
  gap: 1rem;
}

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

.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);
}

/* Responsive Grid */
@media (min-width: 640px) {
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .sm\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

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

@media (min-width: 1280px) {
  .xl\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Month Card */
.month-card {
  background: white;
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border: 2px solid #e5e7eb;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  color: inherit;
  display: block;
}

.month-card:hover {
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  border-color: #4f46e5;
  transform: translateY(-2px);
}

.month-card.current {
  border-color: #10b981;
  background: linear-gradient(to bottom right, #f0fdf4, #dcfce7);
}

/* Transaction Item */
.transaction-item {
  background: #f9fafb;
  border-radius: 0.75rem;
  padding: 1rem;
  border: 2px solid #e5e7eb;
  transition: border-color 0.2s;
}

.transaction-item:hover {
  border-color: #4f46e5;
}

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 0.5rem;
  background-color: #e5e7eb;
  border-radius: 9999px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 9999px;
  transition: width 0.3s;
}

.progress-bar-fill.green { background-color: #10b981; }
.progress-bar-fill.orange { background-color: #f59e0b; }
.progress-bar-fill.red { background-color: #ef4444; }

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9998;
  padding: 1rem;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: white;
  border-radius: 1rem;
  padding: 2rem;
  max-width: 42rem;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

/* Badge */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
}

.badge-success {
  background-color: #dcfce7;
  color: #166534;
}

.badge-danger {
  background-color: #fee2e2;
  color: #991b1b;
}

.badge-warning {
  background-color: #fef3c7;
  color: #92400e;
}

.badge-info {
  background-color: #dbeafe;
  color: #1e40af;
}

/* Utility Classes */
.hidden { display: none; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.text-gray-600 { color: #4b5563; }
.text-gray-700 { color: #374151; }
.text-gray-800 { color: #1f2937; }
.text-red-600 { color: #dc2626; }
.text-green-600 { color: #059669; }
.text-blue-600 { color: #2563eb; }
.text-purple-600 { color: #9333ea; }
.text-indigo-600 { color: #4f46e5; }

/* Responsive Utilities */
@media (max-width: 768px) {
  .container {
    padding: 0.5rem;
  }
  
  .card {
    padding: 1rem;
  }
  
  .month-card {
    padding: 1rem;
  }
}