/* CSS Variables for Color Palette */
:root {
  --color-primary: #E4C1F9;
  --color-secondary: #F6DFEB;
  --color-accent: #D0F4DE;
  --color-warning: #FCF6BD;
  --color-danger: #FFB7C5;
  --color-dark: #2c3e50;
  --color-light: #ffffff;
  --color-muted: #6c757d;
  --border-radius: 12px;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --color-light: #1a1a1a;
  --color-dark: #ffffff;
  --color-muted: #b0b0b0;
  --color-primary: #9b59b6;
  --color-secondary: #2c3e50;
  --color-accent: #27ae60;
  --color-warning: #f39c12;
  --color-danger: #e74c3c;
}

/* Base Styles */
* {
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--color-dark);
  background-color: var(--color-light);
  transition: var(--transition);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  margin-bottom: 1rem;
}

.display-4 {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation */
.navbar {
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.navbar-brand {
  font-size: 1.5rem;
  color: var(--color-primary) !important;
}

/* Cards */
.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.card-header {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-bottom: none;
  color: var(--color-dark);
  font-weight: 600;
}

/* Environment Cards */
.environment-card {
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.environment-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.environment-card:hover::before {
  left: 100%;
}

.environment-card.selected {
  border: 2px solid var(--color-primary);
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
}

.environment-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--color-primary);
  transition: var(--transition);
}

.environment-card:hover .environment-icon {
  transform: scale(1.1);
}

/* Furniture Items */
.furniture-item {
  background: var(--color-light);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
  transition: var(--transition);
}

.furniture-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--box-shadow);
}

.furniture-item.essential {
  border-left: 4px solid var(--color-accent);
}

.furniture-item.optional {
  border-left: 4px solid var(--color-warning);
}

/* Form Controls */
.form-control, .form-select {
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.2);
  transition: var(--transition);
}

.form-control:focus, .form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.2rem rgba(228, 193, 249, 0.25);
}

/* Buttons */
.btn {
  border-radius: 8px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border: none;
  color: var(--color-dark);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  transform: translateY(-1px);
}

.btn-success {
  background: linear-gradient(135deg, var(--color-accent), #27ae60);
  border: none;
}

.btn-outline-info {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline-info:hover {
  background-color: var(--color-primary);
  color: var(--color-dark);
}

/* Dark Mode Toggle */
#darkModeToggle {
  border-radius: 50%;
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Chart Container */
#costChart {
  max-width: 100%;
  height: auto;
}

/* Summary Section */
.summary-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.summary-item:last-child {
  border-bottom: none;
}

/* Accordion */
.accordion-item {
  border: none;
  margin-bottom: 0.5rem;
  border-radius: var(--border-radius) !important;
  overflow: hidden;
}

.accordion-button {
  background: var(--color-secondary);
  border: none;
  font-weight: 500;
}

.accordion-button:not(.collapsed) {
  background: var(--color-primary);
  color: var(--color-dark);
}

.accordion-button:focus {
  box-shadow: 0 0 0 0.2rem rgba(228, 193, 249, 0.25);
}

/* Offcanvas */
.offcanvas {
  border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.nav-pills .nav-link {
  border-radius: 8px;
  margin-bottom: 0.5rem;
  transition: var(--transition);
}

.nav-pills .nav-link.active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: var(--color-dark);
}

/* Ad Banners */
.ad-banner {
  min-height: 100px;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-warning));
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.ad-banner::before {
  content: 'Publicidade';
  position: absolute;
  top: 5px;
  left: 10px;
  font-size: 0.8rem;
  color: var(--color-muted);
  opacity: 0.7;
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(228, 193, 249, 0.3);
  border-radius: 50%;
  border-top-color: var(--color-primary);
  animation: spin 1s ease-in-out infinite;
}

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

/* Pulse Animation */
.pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 15px;
  }
  
  .display-4 {
    font-size: 2rem;
  }
  
  .environment-icon {
    font-size: 2.5rem;
  }
  
  .card-body {
    padding: 1rem;
  }
  
  .furniture-item {
    padding: 1rem;
  }
  
  .btn {
    font-size: 0.9rem;
  }
  
  .offcanvas {
    width: 100% !important;
  }
}

@media (max-width: 576px) {
  .navbar-brand {
    font-size: 1.2rem;
  }
  
  .display-4 {
    font-size: 1.8rem;
  }
  
  .environment-icon {
    font-size: 2rem;
  }
  
  .row.g-3 {
    --bs-gutter-x: 0.5rem;
  }
  
  .card-header {
    padding: 0.75rem;
  }
  
  .furniture-item {
    padding: 0.75rem;
  }
}

/* Print Styles */
@media print {
  .navbar, .offcanvas, .modal, .ad-banner, .btn {
    display: none !important;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #000;
  }
  
  body {
    background: white;
    color: black;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #000080;
    --color-secondary: #000000;
    --color-accent: #008000;
    --color-warning: #FF8C00;
    --color-danger: #FF0000;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus Styles for Accessibility */
.btn:focus,
.form-control:focus,
.form-select:focus,
.nav-link:focus,
.accordion-button:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

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

::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 4px;
}

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

/* Utility Classes */
.text-gradient {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-gradient {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
}

.shadow-custom {
  box-shadow: var(--box-shadow);
}

.border-radius-custom {
  border-radius: var(--border-radius);
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.slide-in {
  animation: slideIn 0.5s ease-in-out;
}

@keyframes slideIn {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

/* Dark Mode Specific Styles */
[data-theme="dark"] {
  background-color: var(--color-light);
  color: var(--color-dark);
}

[data-theme="dark"] .navbar {
  background-color: var(--color-secondary) !important;
}

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

[data-theme="dark"] .furniture-item {
  background-color: var(--color-light);
  border-color: rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
  background-color: var(--color-secondary);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--color-dark);
}

[data-theme="dark"] .accordion-item {
  background-color: var(--color-secondary);
}

[data-theme="dark"] .offcanvas {
  background-color: var(--color-light);
  color: var(--color-dark);
}