/* ========================================
   📝 MODERN FORM STYLES
   Enhanced UX/UI for Forms & Inputs
   ======================================== */

/* === FORM CONTAINER === */
.modern-form {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    max-width: 600px;
    margin: 0 auto;
}

.modern-form h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

/* === FORM GROUPS === */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--gray-700);
    font-size: var(--text-base);
}

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

/* === INPUT STYLES === */
.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    color: var(--gray-800);
    background: var(--white);
    transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(42, 36, 125, 0.1);
}

.form-input:hover,
.form-textarea:hover,
.form-select:hover {
    border-color: var(--gray-400);
}

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

.form-input.error:focus,
.form-textarea.error:focus,
.form-select.error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Textarea specific */
.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* Select specific */
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234b5563' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-md) center;
    padding-right: var(--spacing-2xl);
}

/* === INPUT WITH ICON === */
.input-with-icon {
    position: relative;
}

.input-with-icon .form-input {
    padding-left: var(--spacing-2xl);
}

.input-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: var(--text-xl);
    pointer-events: none;
}

/* RTL Support */
.lang-ar .input-with-icon .form-input {
    padding-right: var(--spacing-2xl);
    padding-left: var(--spacing-md);
}

.lang-ar .input-icon {
    left: auto;
    right: var(--spacing-md);
}

/* === FLOATING LABELS === */
.floating-label {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.floating-label .form-input,
.floating-label .form-textarea {
    padding-top: var(--spacing-lg);
}

.floating-label label {
    position: absolute;
    left: var(--spacing-md);
    top: var(--spacing-md);
    color: var(--gray-500);
    font-size: var(--text-base);
    transition: all var(--transition-base);
    pointer-events: none;
    background: var(--white);
    padding: 0 var(--spacing-xs);
}

.floating-label .form-input:focus + label,
.floating-label .form-input:not(:placeholder-shown) + label,
.floating-label .form-textarea:focus + label,
.floating-label .form-textarea:not(:placeholder-shown) + label {
    top: -10px;
    left: var(--spacing-md);
    font-size: var(--text-sm);
    color: var(--primary-color);
    font-weight: 600;
}

/* RTL Support */
.lang-ar .floating-label label {
    left: auto;
    right: var(--spacing-md);
}

.lang-ar .floating-label .form-input:focus + label,
.lang-ar .floating-label .form-input:not(:placeholder-shown) + label {
    right: var(--spacing-md);
    left: auto;
}

/* === CHECKBOXES & RADIO BUTTONS === */
.form-checkbox,
.form-radio {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    margin-bottom: var(--spacing-sm);
}

.form-checkbox input[type="checkbox"],
.form-radio input[type="radio"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.form-checkbox label,
.form-radio label {
    cursor: pointer;
    color: var(--gray-700);
}

/* Custom Checkbox */
.custom-checkbox {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    position: relative;
}

.custom-checkbox input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.custom-checkbox .checkmark {
    width: 22px;
    height: 22px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    background: var(--white);
    transition: all var(--transition-base);
    position: relative;
}

.custom-checkbox input[type="checkbox"]:checked + .checkmark {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.custom-checkbox .checkmark::after {
    content: '';
    position: absolute;
    display: none;
    left: 7px;
    top: 3px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.custom-checkbox input[type="checkbox"]:checked + .checkmark::after {
    display: block;
}

.custom-checkbox:hover .checkmark {
    border-color: var(--primary-color);
}

/* === ERROR & HELP TEXT === */
.error-message {
    color: var(--error);
    font-size: var(--text-sm);
    margin-top: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.error-message::before {
    content: "⚠";
    font-size: var(--text-base);
}

.help-text {
    color: var(--gray-500);
    font-size: var(--text-sm);
    margin-top: var(--spacing-xs);
}

/* === SUCCESS STATE === */
.form-input.success,
.form-textarea.success {
    border-color: var(--success);
}

.form-input.success:focus,
.form-textarea.success:focus {
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.success-message {
    color: var(--success);
    font-size: var(--text-sm);
    margin-top: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.success-message::before {
    content: "✓";
    font-size: var(--text-base);
    font-weight: bold;
}

/* === FILE UPLOAD === */
.file-upload {
    position: relative;
    display: inline-block;
    width: 100%;
}

.file-upload input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.file-upload-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xl);
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-lg);
    background: var(--gray-50);
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.file-upload-label i {
    font-size: var(--text-3xl);
    color: var(--primary-color);
}

.file-name {
    margin-top: var(--spacing-sm);
    font-size: var(--text-sm);
    color: var(--gray-600);
}

/* === FORM BUTTONS === */
.form-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--gray-200);
}

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

/* === LOADING STATE === */
.form-input:disabled,
.form-textarea:disabled,
.form-select:disabled {
    background: var(--gray-100);
    cursor: not-allowed;
    opacity: 0.6;
}

.form-loading {
    position: relative;
    pointer-events: none;
}

.form-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    right: var(--spacing-md);
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary-color);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .modern-form {
        padding: var(--spacing-lg);
    }
    
    .form-actions {
        flex-direction: column-reverse;
    }
    
    .form-actions .btn {
        width: 100%;
    }
}

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

.form-grid .form-group.full-width {
    grid-column: span 2;
}

@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .form-grid .form-group.full-width {
        grid-column: span 1;
    }
}

/* === INPUT GROUPS === */
.input-group {
    display: flex;
    gap: 0;
}

.input-group .form-input {
    border-radius: 0;
}

.input-group .form-input:first-child {
    border-top-left-radius: var(--radius-lg);
    border-bottom-left-radius: var(--radius-lg);
}

.input-group .form-input:last-child {
    border-top-right-radius: var(--radius-lg);
    border-bottom-right-radius: var(--radius-lg);
}

.input-group .form-input:not(:last-child) {
    border-right: none;
}

.input-group-addon {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--gray-100);
    border: 2px solid var(--gray-300);
    border-left: none;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    color: var(--gray-600);
}

/* RTL Support */
.lang-ar .input-group .form-input:first-child {
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.lang-ar .input-group .form-input:last-child {
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.lang-ar .input-group .form-input:not(:last-child) {
    border-right: 2px solid var(--gray-300);
    border-left: none;
}

.lang-ar .input-group-addon {
    border-left: 2px solid var(--gray-300);
    border-right: none;
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

/* === SEARCH INPUT === */
.search-input {
    position: relative;
}

.search-input .form-input {
    padding-left: var(--spacing-2xl);
    padding-right: var(--spacing-2xl);
}

.search-input .search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: var(--text-xl);
}

.search-input .clear-icon {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    cursor: pointer;
    font-size: var(--text-xl);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.search-input .form-input:not(:placeholder-shown) + .clear-icon {
    opacity: 1;
}

.search-input .clear-icon:hover {
    color: var(--error);
}

/* RTL Support */
.lang-ar .search-input .form-input {
    padding-right: var(--spacing-2xl);
    padding-left: var(--spacing-2xl);
}

.lang-ar .search-input .search-icon {
    left: auto;
    right: var(--spacing-md);
}

.lang-ar .search-input .clear-icon {
    right: auto;
    left: var(--spacing-md);
}

/* === TOGGLE SWITCH === */
.toggle-switch {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.toggle-switch input[type="checkbox"] {
    position: absolute;
    opacity: 0;
}

.toggle-slider {
    width: 50px;
    height: 26px;
    background: var(--gray-300);
    border-radius: var(--radius-full);
    position: relative;
    transition: background var(--transition-base);
}

.toggle-slider::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    background: var(--white);
    border-radius: 50%;
    transition: transform var(--transition-base);
}

.toggle-switch input[type="checkbox"]:checked + .toggle-slider {
    background: var(--primary-color);
}

.toggle-switch input[type="checkbox"]:checked + .toggle-slider::after {
    transform: translateX(24px);
}

.toggle-switch:hover .toggle-slider {
    background: var(--gray-400);
}

.toggle-switch input[type="checkbox"]:checked:hover + .toggle-slider {
    background: var(--primary-dark);
}