/**
 * Forms & Modals CSS
 * Reusable form inputs, modals, and form layout styles
 * Part of Defensive IT common styles
 * 
 * @author Alan Axford
 * @version 1.0
 */

/* ==========================================
   FORM LAYOUT
   ========================================== */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}

.form-group {
  margin-bottom: 12px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

/* ==========================================
   FORM LABELS & INPUTS
   ========================================== */
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--slate-700);
  margin-bottom: 4px;
}

.required {
  color: var(--danger-500);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: var(--font-sans);
  transition: all 0.2s;
  background: white;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px var(--primary-50);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background: var(--slate-100);
  color: var(--slate-500);
  cursor: not-allowed;
}

.form-textarea {
  resize: vertical;
  min-height: 60px;
  line-height: 1.5;
}

/* ==========================================
   CHECKBOXES & RADIOS
   ========================================== */
.form-checkbox,
.form-radio {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.form-checkbox input[type="checkbox"],
.form-radio input[type="radio"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.form-checkbox label,
.form-radio label {
  cursor: pointer;
  font-size: 14px;
  color: var(--slate-700);
}

/* ==========================================
   FORM VALIDATION
   ========================================== */
.form-error {
  color: var(--danger-500);
  font-size: 12px;
  margin-top: 4px;
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--danger-500);
}

.form-input.error:focus,
.form-select.error:focus,
.form-textarea.error:focus {
  box-shadow: 0 0 0 3px var(--danger-50);
}

.form-success {
  color: var(--success-500);
  font-size: 12px;
  margin-top: 4px;
}

/* ==========================================
   MODAL OVERLAY & CONTAINER
   ========================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

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

.modal {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow: hidden;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal.modal-sm {
  max-width: 400px;
}

.modal.modal-md {
  max-width: 600px;
}

.modal.modal-lg {
  max-width: 800px;
}

.modal.modal-xl {
  max-width: 1200px;
}

/* ==========================================
   MODAL HEADER
   ========================================== */
.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--slate-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--slate-50);
}

.modal-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--slate-800);
  margin: 0;
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--slate-100);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.modal-close:hover {
  background: var(--slate-200);
}

.modal-close svg {
  width: 18px;
  height: 18px;
  stroke: var(--slate-500);
}

/* ==========================================
   MODAL BODY
   ========================================== */
.modal-body {
  padding: 20px;
  overflow-y: auto;
  max-height: calc(90vh - 140px);
}

.modal-body::-webkit-scrollbar {
  width: 8px;
}

.modal-body::-webkit-scrollbar-track {
  background: var(--slate-100);
}

.modal-body::-webkit-scrollbar-thumb {
  background: var(--slate-300);
  border-radius: 4px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
  background: var(--slate-400);
}

/* ==========================================
   MODAL FOOTER
   ========================================== */
.modal-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--slate-200);
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  background: var(--slate-50);
}

.modal-footer.modal-footer-start {
  justify-content: flex-start;
}

.modal-footer.modal-footer-center {
  justify-content: center;
}

.modal-footer.modal-footer-between {
  justify-content: space-between;
}

/* ==========================================
   INPUT GROUPS
   ========================================== */
.input-group {
  display: flex;
  gap: 8px;
}

.input-group .form-input {
  flex: 1;
}

.input-group .btn {
  flex-shrink: 0;
}

/* ==========================================
   FIELD SETS
   ========================================== */
.fieldset {
  border: 1px solid var(--slate-200);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 20px;
}

.fieldset-legend {
  font-size: 14px;
  font-weight: 600;
  color: var(--slate-700);
  padding: 0 8px;
  margin-left: -8px;
}

/* ==========================================
   FORM HELP TEXT
   ========================================== */
.form-help {
  font-size: 12px;
  color: var(--slate-500);
  margin-top: 4px;
}

/* ==========================================
   LOOKUP WIDGETS (Postcode, etc)
   ========================================== */
.lookup-widget {
  background: var(--primary-50);
  border: 2px dashed var(--primary-300);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 20px;
}

.lookup-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.lookup-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary-500), var(--purple-500));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
}

.lookup-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-700);
}

.lookup-result {
  margin-top: 12px;
  padding: 12px;
  background: white;
  border-radius: var(--radius);
  font-size: 13px;
}

.lookup-result.success {
  border-left: 3px solid var(--success-500);
}

.lookup-result.error {
  border-left: 3px solid var(--danger-500);
  color: var(--danger-700);
}

/* ==========================================
   BADGES
   ========================================== */
.badge {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-sm {
  padding: 2px 8px;
  font-size: 10px;
}

.badge-lg {
  padding: 6px 12px;
  font-size: 12px;
}

.badge-primary {
  background: var(--primary-100);
  color: var(--primary-700);
}

.badge-success {
  background: var(--success-50);
  color: var(--success-700);
}

.badge-danger {
  background: var(--danger-50);
  color: var(--danger-700);
}

.badge-warning {
  background: var(--warning-50);
  color: var(--warning-700);
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 768px) {
  .form-grid {
    grid-template-columns: 1fr;
  }

  .modal {
    max-width: 95%;
    margin: 20px;
  }

  .modal-body {
    max-height: calc(90vh - 160px);
  }
}