/* ==========================================================================
   NEXO SAÚDE — UI COMPONENTS & DESIGN ELEMENTS
   Buttons, Cards, Badges, Modals, Toasts, Tables, Tabs, Signature Pad
   ========================================================================== */

/* --------------------------------------------------------------------------
   BUTTONS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.55rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.25;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.btn-primary {
  background: var(--primary-600);
  color: #FFFFFF;
  border-color: var(--primary-700);
  box-shadow: 0 1px 2px rgba(5, 150, 105, 0.2);
}
.btn-primary:hover {
  background: var(--primary-700);
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.35);
  color: #FFFFFF;
}

.btn-secondary {
  background: var(--slate-100);
  color: var(--slate-700);
  border-color: var(--slate-200);
}
.btn-secondary:hover {
  background: var(--slate-200);
  color: var(--slate-900);
}

.btn-outline {
  background: transparent;
  color: var(--slate-700);
  border-color: var(--border-default);
}
.btn-outline:hover {
  background: var(--slate-50);
  border-color: var(--slate-400);
  color: var(--slate-900);
}

.btn-ghost {
  background: transparent;
  color: var(--slate-600);
  border-color: transparent;
}
.btn-ghost:hover {
  background: var(--slate-100);
  color: var(--slate-900);
}

.btn-danger {
  background: var(--danger-solid);
  color: #FFFFFF;
  border-color: #DC2626;
}
.btn-danger:hover {
  background: #DC2626;
}

.btn-sm {
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  font-size: 1rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-lg);
}

.btn-icon {
  padding: 0.55rem;
  border-radius: var(--radius-md);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   FORMS & INPUTS
   -------------------------------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.15rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--slate-700);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.form-label .required {
  color: var(--danger-solid);
}

.form-control, .form-select, .form-textarea {
  width: 100%;
  padding: 0.6rem 0.85rem;
  font-size: 0.9rem;
  background: #FFFFFF;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form-control:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-control::placeholder, .form-textarea::placeholder {
  color: var(--slate-400);
}

.form-textarea {
  min-height: 80px;
  resize: vertical;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--slate-500);
}

.form-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.form-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.form-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--slate-700);
  user-select: none;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary-600);
  cursor: pointer;
}

.form-section-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--slate-900);
  margin-top: 1.5rem;
  margin-bottom: 0.85rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* --------------------------------------------------------------------------
   CARDS & CONTAINERS
   -------------------------------------------------------------------------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  overflow: hidden;
}

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

.card-header {
  padding: 1.15rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--slate-900);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-subtitle {
  font-size: 0.8rem;
  color: var(--slate-500);
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  background: var(--slate-50);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* --------------------------------------------------------------------------
   STAT & KPI CARDS
   -------------------------------------------------------------------------- */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--slate-300);
}

.stat-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon svg {
  width: 22px;
  height: 22px;
}

.stat-icon.emerald { background: var(--primary-100); color: var(--primary-700); }
.stat-icon.blue { background: var(--blue-100); color: var(--blue-700); }
.stat-icon.amber { background: var(--warning-bg); color: var(--warning-solid); }
.stat-icon.purple { background: var(--purple-bg); color: var(--purple-solid); }
.stat-icon.slate { background: var(--slate-100); color: var(--slate-700); }

.stat-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--slate-500);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--slate-900);
  line-height: 1.1;
}

.stat-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--slate-500);
}

.stat-progress {
  width: 100%;
  height: 6px;
  background: var(--slate-100);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-top: 0.35rem;
}

.stat-progress-bar {
  height: 100%;
  background: var(--primary-500);
  border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   BADGES & STATUS PILLS
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  line-height: 1.2;
}

.badge-emerald { background: var(--success-bg); color: var(--success-text); border: 1px solid var(--success-border); }
.badge-blue { background: var(--info-bg); color: var(--info-text); border: 1px solid var(--info-border); }
.badge-amber { background: var(--warning-bg); color: var(--warning-text); border: 1px solid var(--warning-border); }
.badge-red { background: var(--danger-bg); color: var(--danger-text); border: 1px solid var(--danger-border); }
.badge-purple { background: var(--purple-bg); color: var(--purple-text); border: 1px solid var(--purple-border); }
.badge-slate { background: var(--slate-100); color: var(--slate-700); border: 1px solid var(--slate-200); }

/* --------------------------------------------------------------------------
   DATA TABLES
   -------------------------------------------------------------------------- */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  text-align: left;
}

.table th {
  background: var(--slate-50);
  color: var(--slate-600);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.85rem 1.15rem;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.table th:first-child { border-top-left-radius: var(--radius-md); }
.table th:last-child { border-top-right-radius: var(--radius-md); }

.table td {
  padding: 1rem 1.15rem;
  font-size: 0.88rem;
  color: var(--slate-700);
  border-bottom: 1px solid var(--border-subtle);
  background: #FFFFFF;
  vertical-align: middle;
}

.table-hover tbody tr:hover td {
  background: var(--slate-50);
}

.table-avatar-cell {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.table-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--slate-100);
  color: var(--slate-700);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   TABS SYSTEM
   -------------------------------------------------------------------------- */
.tabs-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1.5rem;
  overflow-x: auto;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--slate-500);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--slate-900);
}

.tab-btn.active {
  color: var(--primary-700);
  border-bottom-color: var(--primary-600);
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
  animation: fadeIn 0.2s ease-out;
}

/* --------------------------------------------------------------------------
   MODAL SYSTEM
   -------------------------------------------------------------------------- */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  z-index: 110;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.modal-dialog {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  transform: scale(0.96) translateY(8px);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.modal-dialog.modal-lg { max-width: 840px; }
.modal-dialog.modal-xl { max-width: 1040px; }

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

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--slate-900);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--slate-400);
  cursor: pointer;
  padding: 0.35rem;
  border-radius: var(--radius-sm);
  display: flex;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--slate-100);
  color: var(--slate-800);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  background: var(--slate-50);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* --------------------------------------------------------------------------
   TOAST SYSTEM
   -------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 320px;
  max-width: 420px;
  background: #FFFFFF;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.9rem 1.15rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  border-left: 4px solid var(--primary-500);
  animation: slideInRight 0.25s ease-out;
  transition: all var(--transition-normal);
}

.toast.toast-error { border-left-color: var(--danger-solid); }
.toast.toast-warning { border-left-color: var(--warning-solid); }
.toast.toast-info { border-left-color: var(--info-solid); }

.toast-icon {
  display: flex;
  margin-top: 2px;
  flex-shrink: 0;
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--slate-900);
}

.toast-msg {
  font-size: 0.8rem;
  color: var(--slate-600);
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   DIGITAL SIGNATURE PAD
   -------------------------------------------------------------------------- */
.signature-pad-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.signature-canvas {
  width: 100%;
  height: 180px;
  background: #FAFAFA;
  border: 2px dashed var(--border-default);
  border-radius: var(--radius-md);
  cursor: crosshair;
  touch-action: none;
}

.signature-canvas:hover {
  border-color: var(--primary-400);
}

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

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}