/* ========================================
   AMS CBC - Design System
   Plataforma de Inteligência Artificial
   ======================================== */

/* ----------------------------------------
   CSS Variables / Design Tokens
   ---------------------------------------- */
:root {
  /* Primary Colors */
  --color-primary: #2D5A3D;
  --color-primary-light: #8FD9A8;
  --color-primary-lighter: #B8E6C9;
  --color-primary-dark: #1E3D29;
  
  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-gray-50: #FAFAFA;
  --color-gray-100: #F5F5F5;
  --color-gray-200: #EEEEEE;
  --color-gray-300: #E0E0E0;
  --color-gray-400: #BDBDBD;
  --color-gray-500: #9E9E9E;
  --color-gray-600: #757575;
  --color-gray-700: #616161;
  --color-gray-800: #424242;
  --color-gray-900: #212121;
  
  /* Semantic Colors */
  --color-success: #4CAF50;
  --color-warning: #FFC107;
  --color-error: #F44336;
  --color-info: #2196F3;
  
  /* Background Colors */
  --bg-primary: var(--color-white);
  --bg-secondary: var(--color-gray-50);
  --bg-header: var(--color-white);
  
  /* Text Colors */
  --text-primary: var(--color-gray-900);
  --text-secondary: var(--color-gray-600);
  --text-muted: var(--color-gray-500);
  --text-inverse: var(--color-white);
  
  /* Border */
  --border-color: var(--color-gray-300);
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --border-radius-full: 50%;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
  
  /* Typography */
  --font-family-primary: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-family-display: 'Playfair Display', Georgia, serif;
  
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Z-Index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal-backdrop: 300;
  --z-modal: 400;
  --z-tooltip: 500;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* ----------------------------------------
   Typography
   ---------------------------------------- */
.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }
.text-4xl { font-size: var(--font-size-4xl); }

.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }

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

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--text-primary);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

.page-title {
  font-family: var(--font-family-display);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-6);
}

/* ----------------------------------------
   Buttons
   ---------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-secondary {
  background-color: var(--color-gray-200);
  color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-gray-300);
}

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

.btn-outline:hover:not(:disabled) {
  background-color: var(--color-gray-100);
  border-color: var(--color-gray-400);
}

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

.btn-danger:hover:not(:disabled) {
  background-color: #D32F2F;
}

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

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-gray-100);
  color: var(--text-primary);
}

.btn-delete-soft {
  background-color: rgba(244, 67, 54, 0.1);
  border: 1px solid rgba(244, 67, 54, 0.3);
  color: #E57373;
}

.btn-delete-soft:hover:not(:disabled) {
  background-color: rgba(244, 67, 54, 0.2);
  border-color: rgba(244, 67, 54, 0.5);
  color: #EF5350;
}

.btn-sm {
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--font-size-base);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--border-radius-full);
}

.btn-icon.btn-sm {
  width: 32px;
  height: 32px;
}

/* ----------------------------------------
   Form Elements
   ---------------------------------------- */
.form-group {
  margin-bottom: var(--spacing-4);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-2);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-fast), box-shadow 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 rgba(143, 217, 168, 0.2);
}

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

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background-color: var(--color-gray-100);
  cursor: not-allowed;
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-error);
}

.form-error {
  font-size: var(--font-size-sm);
  color: var(--color-error);
  margin-top: var(--spacing-1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23757575' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-4) center;
  padding-right: var(--spacing-10);
}

/* ----------------------------------------
   Cards
   ---------------------------------------- */
.card {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-6);
  transition: box-shadow var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-4);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.card-body {
  color: var(--text-secondary);
}

.card-footer {
  margin-top: var(--spacing-4);
  padding-top: var(--spacing-4);
  border-top: 1px solid var(--border-color);
}

/* ----------------------------------------
   Tables
   ---------------------------------------- */
.table-container {
  overflow-x: auto;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
  background-color: var(--color-white);
}

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

.table th,
.table td {
  padding: var(--spacing-3) var(--spacing-4);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.table th {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
  background-color: var(--color-gray-50);
}

.table tbody tr:hover {
  background-color: var(--color-gray-50);
}

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

/* ----------------------------------------
   Badges
   ---------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-1) var(--spacing-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--border-radius-full);
}

.badge-success {
  background-color: rgba(76, 175, 80, 0.1);
  color: var(--color-success);
}

.badge-warning {
  background-color: rgba(255, 193, 7, 0.1);
  color: #F57C00;
}

.badge-error {
  background-color: rgba(244, 67, 54, 0.1);
  color: var(--color-error);
}

.badge-info {
  background-color: rgba(33, 150, 243, 0.1);
  color: var(--color-info);
}

.badge-neutral {
  background-color: var(--color-gray-100);
  color: var(--text-secondary);
}

/* ----------------------------------------
   Modal
   ---------------------------------------- */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  padding: var(--spacing-4);
}

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

/* Modal standalone (usado com classe .open) */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  padding: var(--spacing-4);
}

.modal.open {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background-color: var(--color-white);
  border-radius: var(--border-radius-xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95) translateY(20px);
  transition: transform var(--transition-normal);
  box-shadow: var(--shadow-xl);
}

.modal.open .modal-content {
  transform: scale(1) translateY(0);
}

/* Modal dentro de backdrop (estrutura alternativa) */
.modal-backdrop .modal {
  position: relative;
  top: auto;
  left: auto;
  right: auto;
  bottom: auto;
  background-color: var(--color-white);
  opacity: 1;
  visibility: visible;
  padding: 0;
}

.modal-backdrop.active .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-6);
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-full);
  color: var(--text-secondary);
  transition: background-color var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--color-gray-100);
}

.modal-body {
  padding: var(--spacing-6);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-3);
  padding: var(--spacing-4) var(--spacing-6);
  border-top: 1px solid var(--border-color);
  background-color: var(--color-gray-50);
}

/* ----------------------------------------
   Confirm Overlay (showConfirm - modal centralizado)
   ---------------------------------------- */
.confirm-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-tooltip);
  padding: var(--spacing-4);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.confirm-overlay.show {
  opacity: 1;
  visibility: visible;
}

.confirm-overlay .confirm-dialog {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 420px;
  width: 100%;
  overflow: hidden;
}

.confirm-overlay .confirm-header {
  padding: var(--spacing-5) var(--spacing-6);
  border-bottom: 1px solid var(--border-color);
}

.confirm-overlay .confirm-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin: 0;
}

.confirm-overlay .confirm-body {
  padding: var(--spacing-5) var(--spacing-6);
}

.confirm-overlay .confirm-message {
  color: var(--text-secondary);
  margin: 0;
  line-height: var(--line-height-relaxed);
}

.confirm-overlay .confirm-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-3);
  padding: var(--spacing-4) var(--spacing-6);
  border-top: 1px solid var(--border-color);
  background-color: var(--color-gray-50);
}

/* ----------------------------------------
   Tabs
   ---------------------------------------- */
.tabs {
  display: flex;
  gap: var(--spacing-2);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--spacing-6);
}

.tab {
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  background-color: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.tab:hover {
  color: var(--text-primary);
}

.tab.active {
  color: var(--color-primary-dark);
  background-color: var(--color-primary-light);
  border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
  border-bottom-color: var(--color-primary);
}

/* ----------------------------------------
   Search & Filters
   ---------------------------------------- */
.search-box {
  position: relative;
}

.search-box .search-icon {
  position: absolute;
  left: var(--spacing-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.search-box .form-input {
  padding-left: var(--spacing-10);
}

.filters-bar {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  flex-wrap: wrap;
}

/* ----------------------------------------
   List Items
   ---------------------------------------- */
.list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4) var(--spacing-5);
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-xl);
  margin-bottom: var(--spacing-3);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.list-item:hover {
  border-color: var(--color-gray-400);
  box-shadow: var(--shadow-sm);
}

.list-item-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
  flex: 1;
  min-width: 0;
}

.list-item-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-gray-100);
  border-radius: var(--border-radius-md);
  flex-shrink: 0;
}

.list-item-info {
  flex: 1;
  min-width: 0;
}

.list-item-title {
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  margin-bottom: var(--spacing-1);
}

.list-item-subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.list-item-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

/* ----------------------------------------
   Empty State
   ---------------------------------------- */
.empty-state {
  text-align: center;
  padding: var(--spacing-16) var(--spacing-4);
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-4);
  opacity: 0.5;
}

.empty-state-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-2);
}

.empty-state-description {
  font-size: var(--font-size-sm);
  max-width: 400px;
  margin: 0 auto;
}

/* ----------------------------------------
   Alerts
   ---------------------------------------- */
.alert {
  padding: var(--spacing-4);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-4);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
}

.alert-error {
  background-color: rgba(244, 67, 54, 0.1);
  border: 1px solid rgba(244, 67, 54, 0.2);
  color: var(--color-error);
}

.alert-success {
  background-color: rgba(76, 175, 80, 0.1);
  border: 1px solid rgba(76, 175, 80, 0.2);
  color: var(--color-success);
}

.alert-warning {
  background-color: rgba(255, 193, 7, 0.1);
  border: 1px solid rgba(255, 193, 7, 0.2);
  color: #F57C00;
}

.alert-info {
  background-color: rgba(33, 150, 243, 0.1);
  border: 1px solid rgba(33, 150, 243, 0.2);
  color: var(--color-info);
}

/* ----------------------------------------
   Utility Classes
   ---------------------------------------- */
.hidden { display: none !important; }
.invisible { visibility: hidden; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--spacing-1); }
.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }

.m-0 { margin: 0; }
.mt-2 { margin-top: var(--spacing-2); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }

.p-0 { padding: 0; }
.p-4 { padding: var(--spacing-4); }
.p-6 { padding: var(--spacing-6); }

.w-full { width: 100%; }
.text-center { text-align: center; }
.text-right { text-align: right; }

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

/* ----------------------------------------
   Animations
   ---------------------------------------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.animate-fadeIn {
  animation: fadeIn var(--transition-normal) ease-out;
}

.animate-slideUp {
  animation: slideUp var(--transition-normal) ease-out;
}

/* Staggered animations */
.stagger-1 { animation-delay: 50ms; }
.stagger-2 { animation-delay: 100ms; }
.stagger-3 { animation-delay: 150ms; }
.stagger-4 { animation-delay: 200ms; }
.stagger-5 { animation-delay: 250ms; }