/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8fafc;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container and layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-fluid {
  width: 100%;
  padding: 0 20px;
}

/* Header */
.header {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  color: white;
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  transition: all 0.3s ease;
}

  .mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background-color 0.2s;
    z-index: 1001;
  }
  
  .mobile-menu-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }
  
  .mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
  }

.header h1 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0;
}

.header p {
  margin: 0.25rem 0 0 0;
  opacity: 0.9;
  font-size: 0.9rem;
}

/* Navigation */
.nav {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.nav-link {
  color: white;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: background-color 0.2s;
  font-weight: 500;
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
  background-color: rgba(255, 255, 255, 0.2);
}

/* Cards */
.card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border: 1px solid #e2e8f0;
}

.card-header {
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1e293b;
  margin: 0;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: #374151;
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid #d1d5db;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: #0ea5e9;
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.form-control.error {
  border-color: #ef4444;
}

.form-error {
  color: #ef4444;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
  gap: 0.5rem;
}

.btn-primary {
  background-color: #0ea5e9;
  color: white;
}

.btn-primary:hover {
  background-color: #0284c7;
  transform: translateY(-1px);
}

.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-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* Grid system */
.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -0.75rem;
}

.col {
  flex: 1;
  padding: 0 0.75rem;
}

.col-12 { flex: 0 0 100%; }
.col-6 { flex: 0 0 50%; }
.col-4 { flex: 0 0 33.333333%; }
.col-3 { flex: 0 0 25%; }

/* Tables */
.table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

.table th,
.table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid #e2e8f0;
}

.table th {
  background-color: #f8fafc;
  font-weight: 600;
  color: #374151;
}

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

/* Alerts */
.alert {
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  border: 1px solid transparent;
}

.alert-success {
  background-color: #d1fae5;
  border-color: #a7f3d0;
  color: #065f46;
}

.alert-error {
  background-color: #fee2e2;
  border-color: #fecaca;
  color: #991b1b;
}

.alert-info {
  background-color: #dbeafe;
  border-color: #bfdbfe;
  color: #1e40af;
}

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

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-5 { margin-top: 1.5rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.5rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-5 { padding: 1.5rem; }

/* Mobile responsiveness */
@media (max-width: 768px) {
  .container {
    padding: 0 15px;
  }
  
  .header h1 {
    font-size: 1.25rem;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .nav {
    flex-direction: column;
    gap: 0.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-in-out;
    opacity: 1;
  }
  
  .nav.nav-open {
    max-height: 300px;
    opacity: 1;
  }
  
  .nav:not(.nav-open) {
    opacity: 0.8;
  }
  
  .nav-link {
    text-align: center;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: background-color 0.2s;
  }
  
  .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }
  
  .card {
    padding: 1rem;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .row {
    flex-direction: column;
  }
  
  .col {
    margin-bottom: 1rem;
  }
  
  .table {
    font-size: 0.875rem;
  }
  
  .table th,
  .table td {
    padding: 0.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 10px;
  }
  
  .header {
    padding: 0.75rem 0;
  }
  
  .card {
    padding: 0.75rem;
  }
  
  .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
  }
}

/* PWA specific styles */
.pwa-install-prompt {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  padding: 1rem;
  z-index: 1001;
  display: none;
}

.pwa-install-prompt.show {
  display: block;
}

.pwa-install-prompt .btn {
  margin-top: 0.5rem;
}

/* Loading states */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid #f3f3f3;
  border-top: 3px solid #0ea5e9;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Estimate options styling */
.estimate-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.option-card {
  border: 2px solid #e2e8f0;
  border-radius: 12px;
  padding: 1.5rem;
  transition: all 0.2s;
}

.option-card:hover {
  border-color: #0ea5e9;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(14, 165, 233, 0.1);
}

.option-card.option-a {
  border-color: #10b981;
}

.option-card.option-b {
  border-color: #f59e0b;
}

.option-card.option-c {
  border-color: #8b5cf6;
}

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

.option-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

.option-badge {
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
  color: white;
}

.option-badge.option-a {
  background-color: #10b981;
}

.option-badge.option-b {
  background-color: #f59e0b;
}

.option-badge.option-c {
  background-color: #8b5cf6;
}

/* Present to Customer Section */
.btn-success {
  background-color: #10b981;
  border-color: #10b981;
  color: white;
}

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

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

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

.ml-2 {
  margin-left: 0.5rem;
}

.mb-3 {
  margin-bottom: 1rem;
}

@media (max-width: 768px) {
  .ml-2 {
    margin-left: 0;
    margin-top: 0.5rem;
    display: block;
    width: 100%;
  }
}

/* Approved Estimate Details */
.border-success {
  border-color: #10b981 !important;
}

.mt-2 {
  margin-top: 0.5rem;
}

.ml-2 {
  margin-left: 0.5rem;
}

@media (max-width: 768px) {
  .ml-2 {
    margin-left: 0;
    margin-top: 0.5rem;
  }
}