/* ========================================
   FORMS - Phase 3.1 Form & Security Implementation
   ======================================== */

/* ===== SECURE FORM CONTAINER ===== */
.secure-form {
  /* Layout */
  position: relative;
  width: 100%;
  
  /* Security */
  /* CSRF protection will be handled by Formspree */
  
  /* Transitions */
  transition: all var(--transition-normal);
}

.contact-form-container {
  /* Layout */
  background: #dcdfe1;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  
  /* Spacing */
  padding: var(--space-8);
  
  /* Reserved space to prevent CLS */
  min-height: 600px;
}

/* ===== FORM VALIDATION STATES ===== */
/* Real-time validation with visual feedback */

.form-control.is-valid {
  border-color: var(--color-success);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2328a745' d='m2.3 6.73.94-.94 1.89-1.89.94-.94-.94-.94L3.24 1.36l-.94-.94L.36 2.42l.94.94 1.89 1.89.94.94z'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right calc(0.375em + 0.1875rem) center;
  background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.form-control.is-invalid {
  border-color: var(--color-danger);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath d='m5.8 4.6 1.4 1.4 1.4-1.4'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right calc(0.375em + 0.1875rem) center;
  background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

/* Validation feedback animations */
.invalid-feedback,
.valid-feedback {
  /* Typography */
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  
  /* Layout */
  display: block;
  width: 100%;
  margin-top: var(--space-1);
  
  /* Animation */
  opacity: 0;
  transform: translateY(-5px);
  transition: all var(--transition-fast);
}

.form-control.is-invalid + .invalid-feedback,
.form-control.is-valid + .valid-feedback {
  opacity: 1;
  transform: translateY(0);
}

/* ===== FORM CHECK STYLES ===== */
.form-check {
  /* Layout */
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  
  /* Spacing */
  margin-bottom: var(--space-4);
}

.form-check-input {
  /* Layout */
  margin-top: 0.25em;
  margin-right: 0;
  
  /* Visual */
  width: 1.25em;
  height: 1.25em;
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  
  /* Transitions */
  transition: all var(--transition-fast);
}

.form-check-input:checked {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='m6 10 3 3 6-6'/%3e%3c/svg%3e");
}

.form-check-input:focus {
  box-shadow: 0 0 0 0.2rem rgba(0, 102, 204, 0.25);
}

.form-check-label {
  /* Typography */
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  line-height: var(--line-height-relaxed);
  color: black;
  
  /* Layout */
  cursor: pointer;
  user-select: none;
}

/* ===== SELECT STYLES ===== */
.form-control[type="select"] {
  /* Visual */
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 16px 12px;
  padding-right: 2.5rem;
}

/* ===== TEXTAREA STYLES ===== */
.form-control[type="textarea"] {
  /* Layout */
  resize: vertical;
  min-height: 120px;
  
  /* Typography */
  line-height: var(--line-height-relaxed);
}

/* ===== BUTTON LOADING STATES ===== */
.btn-loading {
  /* Layout */
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn:disabled {
  /* Visual */
  opacity: 0.6;
  cursor: not-allowed;
  
  /* Transitions */
  transition: opacity var(--transition-fast);
}

/* ===== NEWSLETTER FORM STYLES ===== */
.newsletter-form {
  /* Layout */
  max-width: 500px;
  margin: 0 auto;
}

.newsletter-form .input-group {
  /* Layout */
  display: flex;
  width: 100%;
  
  /* Visual */
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.newsletter-form .form-control {
  /* Layout */
  flex: 1;
  
  /* Visual */
  border: none;
  border-radius: 0;
  background: var(--color-white);
  
  /* Spacing */
  padding: var(--space-4) var(--space-6);
  
  /* Typography */
  font-size: var(--font-size-base);
}

.newsletter-form .form-control:focus {
  /* Visual */
  box-shadow: none;
  background: var(--color-gray-50);
}

.newsletter-form .btn {
  /* Layout */
  border-radius: 0;
  border: none;
  
  /* Spacing */
  padding: var(--space-4) var(--space-8);
  
  /* Visual */
  background: var(--color-primary);
  color: var(--color-white);
  
  /* Transitions */
  transition: all var(--transition-fast);
}

.newsletter-form .btn:hover {
  background: var(--color-primary-dark);
  transform: none;
}

/* ===== MODAL FORM STYLES ===== */
.modal-content {
  /* Visual */
  border: none;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
}

.modal-header {
  /* Visual */
  border-bottom: 1px solid var(--color-gray-200);
  background: var(--color-gray-50);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.modal-title {
  /* Typography */
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.modal-body {
  /* Spacing */
  padding: var(--space-6);
}

.modal-footer {
  /* Visual */
  border-top: 1px solid var(--color-gray-200);
  background: var(--color-gray-50);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
}

/* ===== RESPONSIVE FORM ADJUSTMENTS ===== */
/* Mobile-first responsive adjustments */

@media (max-width: 767.98px) {
  .contact-form-container {
    /* Spacing */
    padding: var(--space-6);
    margin: var(--space-4);
    
    /* Visual */
    border-radius: var(--radius-lg);
  }
  
  .newsletter-form .input-group {
    /* Layout */
    flex-direction: column;
  }
  
  .newsletter-form .form-control {
    /* Layout */
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }
  
  .newsletter-form .btn {
    /* Layout */
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  }
  
  .modal-dialog {
    /* Spacing */
    margin: var(--space-4);
  }
  
  .modal-body {
    /* Spacing */
    padding: var(--space-4);
  }
}

/* Tablet adjustments */
@media (min-width: 768px) and (max-width: 991px) {
  .contact-form-container {
    /* Spacing */
    padding: var(--space-7);
  }
}

/* Desktop adjustments */
@media (min-width: 992px) {
  .contact-form-container {
    /* Spacing */
    padding: var(--space-8);
  }
  
  .newsletter-form {
    /* Layout */
    max-width: 600px;
  }
}

/* ===== ACCESSIBILITY ENHANCEMENTS ===== */
/* High contrast mode support */
@media (prefers-contrast: high) {
  .form-control {
    border-width: 2px;
  }
  
  .form-control:focus {
    border-width: 3px;
  }
  
  .form-check-input {
    border-width: 2px;
  }
  
  .btn {
    border-width: 2px;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .form-control,
  .form-check-input,
  .btn,
  .invalid-feedback,
  .valid-feedback {
    transition: none;
  }
  
  .btn:hover {
    transform: none;
  }
}

/* Focus indicators for keyboard navigation */
.form-control:focus-visible,
.form-check-input:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ===== FORM SECURITY INDICATORS ===== */
/* Visual indicators for secure forms */
.secure-form::before {
  /* content: '🔒'; */
  position: absolute;
  top: -10px;
  right: -10px;
  font-size: var(--font-size-sm);
  opacity: 0.7;
  z-index: 1;
}

/* ===== FORM PROGRESS INDICATOR ===== */
/* Multi-step form progress (for future enhancement) */
.form-progress {
  /* Layout */
  display: flex;
  justify-content: space-between;
  align-items: center;
  
  /* Spacing */
  margin-bottom: var(--space-6);
  
  /* Visual */
  position: relative;
}

.form-progress::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-gray-200);
  z-index: 0;
}

.form-progress-step {
  /* Layout */
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  
  /* Visual */
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  width: 40px;
  height: 40px;
  
  /* Typography */
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-muted);
  
  /* Layout */
  display: flex;
  align-items: center;
  justify-content: center;
  
  /* Transitions */
  transition: all var(--transition-normal);
  
  /* Position */
  position: relative;
  z-index: 1;
}

.form-progress-step.active {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-lightest);
}

.form-progress-step.completed {
  border-color: var(--color-success);
  color: var(--color-success);
  background: var(--color-success);
}

.form-progress-step.completed::after {
  content: '✓';
  color: var(--color-white);
  font-weight: var(--font-weight-bold);
}

/* ===== FORM ANIMATIONS ===== */
/* Smooth form interactions */
@keyframes formSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.secure-form {
  animation: formSlideIn 0.5s ease-out;
}

/* Form field focus animations */
.form-control:focus {
  transform: scale(1.02);
  box-shadow: 0 0 0 0.2rem rgba(0, 102, 204, 0.25), var(--shadow-md);
}

/* ===== ERROR HANDLING STYLES ===== */
/* Form error states */
.form-error {
  /* Visual */
  background: rgba(220, 53, 69, 0.1);
  border: 1px solid var(--color-danger);
  border-radius: var(--radius-md);
  
  /* Spacing */
  padding: var(--space-4);
  margin-bottom: var(--space-4);
  
  /* Typography */
  color: var(--color-danger);
  font-size: var(--font-size-sm);
}

.form-success {
  /* Visual */
  background: rgba(40, 167, 69, 0.1);
  border: 1px solid var(--color-success);
  border-radius: var(--radius-md);
  
  /* Spacing */
  padding: var(--space-4);
  margin-bottom: var(--space-4);
  
  /* Typography */
  color: var(--color-success);
  font-size: var(--font-size-sm);
}

/* ===== FORM UTILITIES ===== */
/* Utility classes for form styling */
.form-floating {
  position: relative;
}

.form-floating .form-control {
  padding-top: 1.625rem;
  padding-bottom: 0.625rem;
}

.form-floating label {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  padding: 1rem 0.75rem;
  pointer-events: none;
  border: 1px solid transparent;
  transform-origin: 0 0;
  transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out;
}

.form-floating .form-control:focus ~ label,
.form-floating .form-control:not(:placeholder-shown) ~ label {
  opacity: 0.65;
  transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
}