/**
 * Forms Styles
 * Enhanced with RFQ multi-step forms and modal windows
 * 
 * @package MedEquip_Aggregator
 */

/* ==========================================================================
   FORM ELEMENTS
   ========================================================================== */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.form-label.required::after {
    content: " *";
    color: var(--color-error);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 12px 15px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: var(--transition-base);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

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

.form-input[readonly],
.form-textarea[readonly],
.form-select[readonly] {
    background: var(--color-bg-gray);
    cursor: not-allowed;
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2222222/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    padding-right: 40px;
}

.form-help {
    display: block;
    font-size: 12px;
    color: var(--color-text-lighter);
    margin-top: 5px;
}

.form-error {
    display: block;
    font-size: 12px;
    color: var(--color-error);
    margin-top: 5px;
}

/* Checkbox & Radio */
.form-checkbox,
.form-radio {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.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(--color-text);
}

/* File Upload */
.form-file-wrapper {
    position: relative;
}

.form-file {
    opacity: 0;
    position: absolute;
    z-index: -1;
}

.form-file-label {
    display: inline-block;
    padding: 12px 24px;
    background: var(--color-bg-gray);
    border: 2px dashed var(--color-border);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-base);
}

.form-file-label:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.form-file-name {
    display: block;
    margin-top: 10px;
    font-size: 12px;
    color: var(--color-text-light);
}

/* ==========================================================================
   MULTI-STEP FORM
   ========================================================================== */
.multistep-form {
    max-width: 800px;
    margin: 0 auto;
}

.form-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    position: relative;
}

.form-steps::before {
    content: "";
    position: absolute;
    top: 20px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-border);
    z-index: 0;
}

.form-step {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
}

.form-step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: 10px;
    transition: var(--transition-base);
}

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

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

.form-step-label {
    font-size: 12px;
    color: var(--color-text-light);
    text-align: center;
}

.form-step.active .form-step-label {
    color: var(--color-primary);
    font-weight: 600;
}

.form-step-content {
    display: none;
}

.form-step-content.active {
    display: block;
}

.form-step-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 10px;
}

.form-step-description {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 30px;
}

.form-navigation {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 2px solid var(--color-border);
}

.form-navigation .btn {
    min-width: 120px;
}

/* ==========================================================================
   INLINE FORMS
   ========================================================================== */
.form-inline {
    display: flex;
    gap: 10px;
    align-items: end;
}

.form-inline .form-group {
    flex: 1;
    margin-bottom: 0;
}

.form-inline .btn {
    flex-shrink: 0;
}

/* ==========================================================================
   FORM GRID
   ========================================================================== */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

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

/* ==========================================================================
   SEARCH FORM
   ========================================================================== */
.search-form {
    position: relative;
}

.search-input {
    padding-right: 50px;
}

.search-submit {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--color-primary);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: var(--border-radius);
    cursor: pointer;
}

.search-submit:hover {
    background: var(--color-primary-dark);
}

/* ==========================================================================
   FILTER FORM
   ========================================================================== */
.filter-form {
    background: var(--color-bg-gray);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
}

.filter-form-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 20px;
}

.filter-group {
    margin-bottom: 20px;
}

.filter-group:last-child {
    margin-bottom: 0;
}

.filter-group-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 10px;
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-option {
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-option input[type="checkbox"],
.filter-option input[type="radio"] {
    width: 16px;
    height: 16px;
}

.filter-option label {
    font-size: 14px;
    color: var(--color-text);
    cursor: pointer;
}

.filter-option-count {
    margin-left: auto;
    font-size: 12px;
    color: var(--color-text-lighter);
}

.filter-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}

/* Price Range */
.price-range {
    display: flex;
    gap: 10px;
    align-items: center;
}

.price-range-input {
    flex: 1;
}

.price-range-separator {
    color: var(--color-text-lighter);
}

/* ==========================================================================
   MODAL FORMS
   ========================================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 12222220;
    padding: 20px;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius-large);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-large);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    border-bottom: 1px solid var(--color-border);
}

.modal-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--color-text-light);
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: var(--color-text);
}

.modal-body {
    padding: 30px;
}

.modal-footer {
    padding: 20px 30px;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ==========================================================================
   LOADING STATES
   ========================================================================== */
.form-loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

.form-loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    border: 3px solid var(--color-primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* ==========================================================================
   VALIDATION MESSAGES
   ========================================================================== */
.validation-summary {
    background: #ffebee;
    border-left: 4px solid var(--color-error);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}

.validation-summary-title {
    font-weight: 700;
    color: var(--color-error);
    margin-bottom: 10px;
}

.validation-summary ul {
    list-style: none;
    margin: 0;
}

.validation-summary li {
    color: var(--color-error);
    font-size: 14px;
    margin-bottom: 5px;
}

.validation-summary li:last-child {
    margin-bottom: 0;
}

/* ==========================================================================
   SUCCESS MESSAGES
   ========================================================================== */
.success-message {
    background: #e8f5e9;
    border-left: 4px solid var(--color-success);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
}

.success-message-title {
    font-weight: 700;
    color: var(--color-success);
    margin-bottom: 10px;
}

.success-message-text {
    color: var(--color-text);
    font-size: 14px;
}

/* ==========================================================================
   MODAL WINDOWS (RFQ)
   ========================================================================== */
.rfq-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 12222220;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    z-index: 12222221;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 5px;
    color: #6b7280;
    transition: color 0.2s ease;
    z-index: 10;
}

.modal-close:hover {
    color: #1f2937;
}

.modal-close svg {
    width: 24px;
    height: 24px;
}

.modal-header {
    padding: 30px 30px 20px;
    border-bottom: 1px solid #e5e7eb;
}

.modal-header h2 {
    margin: 0 0 5px;
    font-size: 24px;
    font-weight: 700;
    color: #111827;
}

.modal-subtitle {
    margin: 0;
    font-size: 14px;
    color: #6b7280;
}

.modal-body {
    padding: 30px;
}

.modal-footer {
    padding: 20px 30px;
    border-top: 1px solid #e5e7eb;
    display: flex;
    justify-content: flex-end;
    gap: 15px;
}

body.modal-open {
    overflow: hidden;
}



/* Category selection grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.category-option {
    position: relative;
    cursor: pointer;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.2s ease;
}

.category-option:hover {
    transform: translateY(-3px);
}

.category-option input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.category-option-content {
    padding: 20px;
    text-align: center;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    background: #ffffff;
    transition: all 0.3s ease;
}

.category-option input[type="radio"]:checked + .category-option-content {
    border-color: #12356a;
    background: #eff6ff;
}

.category-option-content .category-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 10px;
}

.category-icon-placeholder {
    width: 48px;
    height: 48px;
    margin: 0 auto 10px;
    background: #f3f4f6;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.category-option-content h4 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: #374151;
}

/* Tender fields */
.tender-details-fields {
    margin-top: 20px;
    padding: 20px;
    background: #f9fafb;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

/* File upload preview */
.files-preview {
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.file-preview-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 15px;
    background: #f3f4f6;
    border-radius: 6px;
    font-size: 13px;
}

.file-preview-item .remove-file {
    background: none;
    border: none;
    color: #ef4444;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
}

/* ==========================================================================
   NOTIFICATIONS
   ========================================================================== */
.rfq-notification {
    position: fixed;
    top: -100px;
    right: 20px;
    z-index: 12222222;
    max-width: 400px;
    padding: 20px 25px;
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    transition: top 0.3s ease;
}

.rfq-notification.show {
    top: 20px;
}

.rfq-notification.success {
    border-left: 4px solid #10b981;
}

.rfq-notification.error {
    border-left: 4px solid #ef4444;
}

.rfq-notification.success::before {
    content: "✓";
    display: inline-block;
    width: 24px;
    height: 24px;
    background: #10b981;
    color: #ffffff;
    border-radius: 50%;
    text-align: center;
    line-height: 24px;
    margin-right: 10px;
    font-weight: bold;
}

.rfq-notification.error::before {
    content: "✕";
    display: inline-block;
    width: 24px;
    height: 24px;
    background: #ef4444;
    color: #ffffff;
    border-radius: 50%;
    text-align: center;
    line-height: 24px;
    margin-right: 10px;
    font-weight: bold;
}

/* Spinner for loading states */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Error messages in forms */
.error-message {
    display: block;
    color: #ef4444;
    font-size: 13px;
    margin-top: 5px;
}

.field-error {
    border-color: #ef4444 !important;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .form-steps {
        flex-wrap: wrap;
        gap: 20px;
    }
    
    .form-steps::before {
        display: none;
    }
    
    .form-inline {
        flex-direction: column;
    }
    
    .form-inline .form-group {
        width: 100%;
    }
    
    .form-navigation {
        flex-direction: column-reverse;
    }
    
    .form-navigation .btn {
        width: 100%;
    }
    
    .filter-actions {
        flex-direction: column;
    }
    
    .filter-actions .btn {
        width: 100%;
    }
    
    .modal-content {
        max-height: 100vh;
        border-radius: 0;
    }
}

@media (max-width: 480px) {
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 15px 20px;
    }
}