/* Accessible Forms Enhancement for WCAG 2.1 AA Compliance */
/* This file provides enhanced styling and structure for accessible forms */

/* ===== FORM CONTAINER ENHANCEMENTS ===== */

/* Enhanced form layouts */
.form-accessible {
    position: relative;
    isolation: isolate;
}

/* Form sections with proper spacing */
.form-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    border: 1px solid transparent;
    border-radius: 0.75rem;
    background-color: #f9fafb;
    transition: all 0.2s ease;
}

.dark .form-section {
    background-color: #1f2937;
    border-color: #374151;
}

.form-section:focus-within {
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* Form section headers */
.form-section-header {
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e5e7eb;
}

.dark .form-section-header {
    border-bottom-color: #374151;
}

.form-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #111827;
    margin: 0;
}

.dark .form-section-title {
    color: #f9fafb;
}

.form-section-description {
    font-size: 0.875rem;
    color: #6b7280;
    margin: 0.25rem 0 0 0;
}

.dark .form-section-description {
    color: #9ca3af;
}

/* ===== FORM FIELD ENHANCEMENTS ===== */

/* Form field containers with proper spacing */
.form-field {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-field:last-child {
    margin-bottom: 0;
}

/* Enhanced form field groups */
.form-field-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.form-field-inline {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ===== ENHANCED LABELS ===== */

/* Required field indicators */
.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: #374151;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.dark .form-label {
    color: #d1d5db;
}

.form-label-required::after {
    content: '*';
    color: #dc2626;
    margin-left: 0.25rem;
    font-weight: bold;
    font-size: 1rem;
}

.form-label-optional {
    font-weight: 400;
    color: #6b7280;
}

.dark .form-label-optional {
    color: #9ca3af;
}

.form-label-optional::after {
    content: ' (optional)';
    font-size: 0.75rem;
    color: #9ca3af;
    font-weight: 400;
}

.dark .form-label-optional::after {
    color: #6b7280;
}

/* Label positioning for inline layouts */
.form-field-inline .form-label {
    margin-bottom: 0;
    flex-shrink: 0;
    min-width: fit-content;
}

/* ===== ENHANCED INPUT FIELDS ===== */

/* Base input styling with accessibility enhancements */
.form-input-accessible {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #d1d5db;
    border-radius: 0.5rem;
    background-color: #ffffff;
    color: #111827;
    font-size: 1rem;
    line-height: 1.5;
    transition: all 0.2s ease;
    appearance: none;
}

.dark .form-input-accessible {
    background-color: #1f2937;
    border-color: #4b5563;
    color: #f9fafb;
}

/* Focus states with enhanced visibility */
.form-input-accessible:focus {
    outline: none;
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
    background-color: #ffffff;
}

.dark .form-input-accessible:focus {
    background-color: #1f2937;
    border-color: #fca5a5;
    box-shadow: 0 0 0 3px rgba(252, 165, 165, 0.1);
}

/* Enhanced placeholder styling */
.form-input-accessible::placeholder {
    color: #9ca3af;
    opacity: 1;
}

.dark .form-input-accessible::placeholder {
    color: #6b7280;
}

/* Disabled state styling */
.form-input-accessible:disabled {
    background-color: #f3f4f6;
    border-color: #d1d5db;
    color: #6b7280;
    cursor: not-allowed;
    opacity: 0.6;
}

.dark .form-input-accessible:disabled {
    background-color: #374151;
    border-color: #4b5563;
    color: #9ca3af;
}

/* ===== VALIDATION STATES ===== */

/* Error state styling */
.form-input-error {
    border-color: #dc2626 !important;
    background-color: #fef2f2;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.dark .form-input-error {
    background-color: #1f1f23;
    border-color: #ef4444 !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-input-error:focus {
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

/* Success state styling */
.form-input-success {
    border-color: #059669 !important;
    background-color: #f0fdf4;
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1);
}

.dark .form-input-success {
    background-color: #1f2421;
    border-color: #10b981 !important;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Warning state styling */
.form-input-warning {
    border-color: #d97706 !important;
    background-color: #fffbeb;
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}

.dark .form-input-warning {
    background-color: #1f1e1a;
    border-color: #f59e0b !important;
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

/* ===== SELECT DROPDOWN ENHANCEMENTS ===== */

/* Enhanced select styling */
.form-select-accessible {
    width: 100%;
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    border: 2px solid #d1d5db;
    border-radius: 0.5rem;
    background-color: #ffffff;
    color: #111827;
    font-size: 1rem;
    line-height: 1.5;
    cursor: pointer;
    transition: all 0.2s ease;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
}

.dark .form-select-accessible {
    background-color: #1f2937;
    border-color: #4b5563;
    color: #f9fafb;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%239ca3af' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
}

.form-select-accessible:focus {
    outline: none;
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.dark .form-select-accessible:focus {
    border-color: #fca5a5;
    box-shadow: 0 0 0 3px rgba(252, 165, 165, 0.1);
}

/* ===== CHECKBOX AND RADIO ENHANCEMENTS ===== */

/* Enhanced checkbox styling */
.form-checkbox-accessible {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid #d1d5db;
    border-radius: 0.375rem;
    background-color: #ffffff;
    cursor: pointer;
    transition: all 0.2s ease;
    appearance: none;
    position: relative;
    flex-shrink: 0;
}

.dark .form-checkbox-accessible {
    background-color: #1f2937;
    border-color: #4b5563;
}

.form-checkbox-accessible:checked {
    background-color: #dc2626;
    border-color: #dc2626;
    background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='m13.854 3.646-7.5 7.5a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6 10.293l7.146-7.147a.5.5 0 0 1 .708.708z'/%3e%3c/svg%3e");
    background-size: 1rem 1rem;
    background-position: center;
    background-repeat: no-repeat;
}

.dark .form-checkbox-accessible:checked {
    background-color: #dc2626;
    border-color: #dc2626;
}

.form-checkbox-accessible:focus {
    outline: none;
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.dark .form-checkbox-accessible:focus {
    border-color: #fca5a5;
    box-shadow: 0 0 0 3px rgba(252, 165, 165, 0.1);
}

/* Enhanced radio button styling */
.form-radio-accessible {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid #d1d5db;
    border-radius: 50%;
    background-color: #ffffff;
    cursor: pointer;
    transition: all 0.2s ease;
    appearance: none;
    position: relative;
    flex-shrink: 0;
}

.dark .form-radio-accessible {
    background-color: #1f2937;
    border-color: #4b5563;
}

.form-radio-accessible:checked {
    background-color: #dc2626;
    border-color: #dc2626;
}

.form-radio-accessible:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0.5rem;
    height: 0.5rem;
    background-color: #ffffff;
    border-radius: 50%;
}

.form-radio-accessible:focus {
    outline: none;
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.dark .form-radio-accessible:focus {
    border-color: #fca5a5;
    box-shadow: 0 0 0 3px rgba(252, 165, 165, 0.1);
}

/* ===== TEXTAREA ENHANCEMENTS ===== */

/* Enhanced textarea styling */
.form-textarea-accessible {
    width: 100%;
    min-height: 6rem;
    padding: 0.75rem 1rem;
    border: 2px solid #d1d5db;
    border-radius: 0.5rem;
    background-color: #ffffff;
    color: #111827;
    font-size: 1rem;
    line-height: 1.5;
    resize: vertical;
    transition: all 0.2s ease;
    font-family: inherit;
}

.dark .form-textarea-accessible {
    background-color: #1f2937;
    border-color: #4b5563;
    color: #f9fafb;
}

.form-textarea-accessible:focus {
    outline: none;
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.dark .form-textarea-accessible:focus {
    border-color: #fca5a5;
    box-shadow: 0 0 0 3px rgba(252, 165, 165, 0.1);
}

/* ===== HELP TEXT AND DESCRIPTIONS ===== */

/* Form help text styling */
.form-help-text {
    font-size: 0.875rem;
    color: #6b7280;
    margin-top: 0.5rem;
    line-height: 1.4;
}

.dark .form-help-text {
    color: #9ca3af;
}

.form-help-text-inline {
    margin-top: 0;
    margin-left: 0.5rem;
}

/* Instructions and examples */
.form-instructions {
    font-size: 0.875rem;
    color: #374151;
    background-color: #f9fafb;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    border-left: 4px solid #3b82f6;
    margin-bottom: 1rem;
}

.dark .form-instructions {
    color: #d1d5db;
    background-color: #1f2937;
    border-left-color: #60a5fa;
}

.form-instructions-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #111827;
}

.dark .form-instructions-title {
    color: #f9fafb;
}

/* ===== ERROR AND VALIDATION MESSAGES ===== */

/* Error message styling */
.form-error-message {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #dc2626;
    margin-top: 0.5rem;
    padding: 0.5rem 0.75rem;
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 0.375rem;
    line-height: 1.4;
}

.dark .form-error-message {
    color: #fca5a5;
    background-color: #1f1f23;
    border-color: #374151;
}

.form-error-icon {
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
    margin-top: 0.125rem;
}

/* Success message styling */
.form-success-message {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #059669;
    margin-top: 0.5rem;
    padding: 0.5rem 0.75rem;
    background-color: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 0.375rem;
    line-height: 1.4;
}

.dark .form-success-message {
    color: #34d399;
    background-color: #1f2421;
    border-color: #374151;
}

/* Warning message styling */
.form-warning-message {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #d97706;
    margin-top: 0.5rem;
    padding: 0.5rem 0.75rem;
    background-color: #fffbeb;
    border: 1px solid #fed7aa;
    border-radius: 0.375rem;
    line-height: 1.4;
}

.dark .form-warning-message {
    color: #fbbf24;
    background-color: #1f1e1a;
    border-color: #374151;
}

/* ===== FORM BUTTONS ENHANCEMENTS ===== */

/* Enhanced form button group */
.form-button-group {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e5e7eb;
    justify-content: flex-end;
    flex-wrap: wrap;
}

.dark .form-button-group {
    border-top-color: #374151;
}

.form-button-group-center {
    justify-content: center;
}

.form-button-group-start {
    justify-content: flex-start;
}

.form-button-group-between {
    justify-content: space-between;
}

/* Enhanced form buttons with accessibility */
.form-btn-primary {
    background-color: #dc2626;
    color: #ffffff;
    border: 2px solid #dc2626;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    min-height: 2.75rem;
}

.form-btn-primary:hover {
    background-color: #b91c1c;
    border-color: #b91c1c;
    color: #ffffff;
}

.form-btn-primary:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

.form-btn-primary:disabled {
    background-color: #9ca3af;
    border-color: #9ca3af;
    color: #ffffff;
    cursor: not-allowed;
    opacity: 0.6;
}

.form-btn-secondary {
    background-color: transparent;
    color: #374151;
    border: 2px solid #d1d5db;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    min-height: 2.75rem;
}

.dark .form-btn-secondary {
    color: #d1d5db;
    border-color: #4b5563;
}

.form-btn-secondary:hover {
    background-color: #f3f4f6;
    border-color: #9ca3af;
    color: #111827;
}

.dark .form-btn-secondary:hover {
    background-color: #374151;
    border-color: #6b7280;
    color: #f9fafb;
}

.form-btn-secondary:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(156, 163, 175, 0.2);
}

/* ===== FIELDSET AND LEGEND ENHANCEMENTS ===== */

/* Enhanced fieldset styling */
.form-fieldset {
    border: 2px solid #e5e7eb;
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    position: relative;
}

.dark .form-fieldset {
    border-color: #374151;
}

.form-fieldset:focus-within {
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

/* Enhanced legend styling */
.form-legend {
    font-size: 1.125rem;
    font-weight: 600;
    color: #111827;
    padding: 0 0.75rem;
    background-color: #ffffff;
    border-radius: 0.375rem;
    margin-bottom: 1rem;
}

.dark .form-legend {
    color: #f9fafb;
    background-color: #111827;
}

/* ===== PROGRESS INDICATORS ===== */

/* Form progress indicator */
.form-progress {
    width: 100%;
    background-color: #e5e7eb;
    border-radius: 9999px;
    height: 0.5rem;
    margin-bottom: 2rem;
    overflow: hidden;
}

.dark .form-progress {
    background-color: #374151;
}

.form-progress-bar {
    height: 100%;
    background-color: #dc2626;
    border-radius: 9999px;
    transition: width 0.3s ease;
    position: relative;
}

.form-progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ===== RESPONSIVE ENHANCEMENTS ===== */

/* Mobile-first responsive form layouts */
@media (max-width: 640px) {
    .form-field-inline {
        flex-direction: column;
        align-items: stretch;
    }
    
    .form-button-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .form-btn-primary,
    .form-btn-secondary {
        justify-content: center;
        width: 100%;
    }
    
    .form-section {
        padding: 1rem;
    }
}

/* ===== HIGH CONTRAST MODE SUPPORT ===== */

@media (prefers-contrast: high) {
    .form-input-accessible,
    .form-select-accessible,
    .form-textarea-accessible,
    .form-checkbox-accessible,
    .form-radio-accessible {
        border-width: 3px;
        font-weight: 600;
    }
    
    .form-label {
        font-weight: 700;
        color: #000000;
    }
    
    .dark .form-label {
        color: #ffffff;
    }
    
    .form-error-message {
        border-width: 2px;
        font-weight: 700;
    }
    
    .form-btn-primary {
        border-width: 3px;
        font-weight: 700;
    }
    
    .form-btn-secondary {
        border-width: 3px;
        font-weight: 700;
        background-color: #ffffff;
        color: #000000;
    }
    
    .dark .form-btn-secondary {
        background-color: #000000;
        color: #ffffff;
    }
}